Weather of Olympia, Washington
Encyclopedia
Seasonal weather conditions for Olympia
and Tumwater
, Washington, U.S., follow.
The Priest Point Park weather station in Olympia has not been in use since 1955.
The closest weather station to Olympia today is at the Olympia Regional Airport
in Tumwater.
January: Hi 44.5 °F (6.9 °C) Lo 31.6 °F (-.2 °C)
February: Hi 49.2 °F (9.6 °C) Lo 32.4 °F (0.222222222223991 °C)
March: Hi 53.3 °F (11.8 °C) Lo 33.8 °F (1 °C)
April: Hi 59 °F (15 °C) Lo 36.5 °F (2.5 °C)
May: Hi 65.8 °F (18.8 °C) Lo 41.6 °F (5.3 °C)
June: Hi 71 °F (21.7 °C) Lo 46.6 °F (8.1 °C)
July: Hi 77.2 °F (25.1 °C) Lo 49.5 °F (9.7 °C)
August: Hi 77 °F (25 °C) Lo 49.5 °F (9.7 °C)
September: Hi 71.6 °F (22 °C) Lo 45.2 °F (7.3 °C)
October: Hi 60.5 °F (15.8 °C) Lo 39.7 °F (4.3 °C)
November: Hi 50.5 °F (10.3 °C) Lo 35.6 °F (2 °C)
December: Hi 44.7 °F (7.1 °C) Lo 32.6 °F (0.333333333335986 °C)
Average mean temperature of Spring: 48.3 °F (9.1 °C)
Average mean temperature of Summer: 61.8 °F (16.6 °C)
Average mean temperature of Fall: 50.5 °F (10.3 °C)
Average mean temperature of Winter: 39.2 °F (4 °C)
Average year-round mean temperature: 49.9 °F (9.9 °C)
Highest temperature reached in an average year: 95.3 °F (35.2 °C)
Lowest temperature reached in an average year: 9.9 °F (-12.3 °C)
February: 5.68 in (14.4 cm)
March: 5.13 in (13 cm)
April: 3.3 in (8.4 cm)
May: 2.03 in (5.2 cm)
June: 1.54 in (3.9 cm)
July: 0.72 in (1.8 cm)
August: 1.16 in (2.9 cm)
September: 2 in (5.1 cm)
October: 4.69 in (11.9 cm)
November: 8.26 in (21 cm)
December: 8.15 in (20.7 cm)
Spring: 10.46 in (26.6 cm)
Summer: 3.42 in (8.7 cm)
Fall: 14.95 in (38 cm)
Winter: 21.87 in (55.5 cm)
Total for the Year: 50.7 in (128.8 cm)
December: 3.5 in (8.9 cm)
January: 6.8 in (17.3 cm)
February: 3.2 in (8.1 cm)
March: 1.7 in (4.3 cm)
April:0.1 in (0.254 cm)
Total for the year: 16.7 in (42.4 cm)
Average number of cloudy days: 228.5
Average number of partly sunny days: 84.4
Average number of sunny days: 52.3
Average cloud cover: 75%
Average number of days with minimums of or below 32 °F (0 °C): 85.2
Average number of days with maximums of or above 90 °F (32.2 °C): 6.3
Average number of days with fog: 225
Average number of heating degree days: 5655
January 1 - Statistical smallest temperature difference between day and night
January 18 - Statistical snowiest day of the year
March 3 - Statistical last snowfall of the season (0.1 in (0.254 cm)or greater)
April 28 - Statistical most moderate temperature day of the year (Spring)
July 28 - Statistical least rainy day of the year
July 31 - Statistical hottest day of the year
August 1 - Statistical day with biggest temperature difference between day and night
October 17 - Statistical most moderate temperature day of the year (Fall)
November 17 - Statistical most likely day for a windstorm
November 27 - Statistical rainiest day of the year
December 15 - Statistical first snowfall of the season (0.1 in (0.254 cm) inches or greater)
Spring - February 23 through June 14
Summer - June 15 through September 13
Fall - September 14 through November 23
First average 32 °F (0 °C) temperature: October 9
First average 28 °F (-2.2 °C) temperature: October 31
First average 24 °F (-4.4 °C) temperature: November 19
First average 20 °F (-6.7 °C) temperature: December 16
Last average 20 °F (-6.7 °C) temperature: February 5
Last average 24 °F (-4.4 °C) temperature: March 5
Last average 28 °F (-2.2 °C) temperature: April 18
Last average 32 °F (0 °C) temperature: May 8
Last average 36 °F (2.2 °C) temperature: May 28
February: Hi 73 °F (22.8 °C) (2-27-1986) Lo -1 °F (2-1-1950)
March: Hi 79 °F (26.1 °C) (3-29-2004) Lo 9 °F (-12.8 °C) (3-3-1989)
April: Hi 90 °F (32.2 °C) (4-12-1904) Lo 21 °F (-6.1 °C) (4-2-1921)
May: Hi 96 °F (35.6 °C) (5-28-1983) Lo 25 °F (-3.9 °C) (5-1-1954)
June: Hi 101 °F (38.3 °C) (6-26-1925, 6-30-1942) Lo 30 °F (-1.1 °C) (6-3-1976)
July: Hi 104 °F (40 °C) (7-3-1906, 7-15-1941, 7-16,1941, 7-29-2009) Lo 32 °F (0 °C) (7-27-1919, 7-31-1919)
August: Hi 104 °F (40 °C) (8-9-1981) Lo 33 °F (0.555555555559977 °C) (8-18-1973)
September: Hi 98 °F (36.7 °C) (9-2-1988) Lo 25 °F (-3.9 °C) (9-27-1972)
October: Hi 90 °F (32.2 °C) (10-1-1987) Lo 14 °F (-10 °C) (10-31-2002)
November: Hi 74 °F (23.3 °C) (10-4-1949) Lo -1 °F (11-15-1955)
December: Hi 70 °F (21.1 °C) (12-8-1906) Lo -7 °F (12-23-1983)
Highest recorded temperatures: 104 °F (40 °C) on 7-3-1906, 7-15-1941, and 7-16,1941 at Priest Point Park in Olympia and on 8-9-1981 and 7-29-2009 at the Olympia Regional Airport in Tumwater
Highest recorded morning low temperature: 76 °F (24.4 °C) on 7-23-1924 at Priest Point Park in Olympia
Longest recorded streak of consecutive days with high temperatures reaching 90 °F (32.2 °C) or above: 8 days, 7/26/2009 - 8/2/2009 at the Olympia Regional Airport in Tumwater
Hottest recorded month (average mean temperature): 69.1 °F (20.6 °C), July 1958 at the Olympia Regional Airport in Tumwater
Warmest recorded spring (average mean temperature): 53.07 °F (11.7 °C), Spring of 1941 at Priest Point Park in Olympia , temperature adjusted approximately to what it would be at the Olympia Regional Airport
Hottest recorded summer (average mean temperature): 66.4 °F (19.1 °C), Summer of 1958 at the Olympia Regional Airport
Warmest recorded fall (average mean temperature): 54.49 °F (12.5 °C), Fall of 1937 at Priest Point Park in Olympia, temperature adjusted approximately to what it would be at the Olympia Regional Airport
Warmest recorded winter (average mean temperature): 43.08 °F (6.2 °C), Winter of 1980-1981 at the Olympia Regional Airport in Tumwater
Hottest recorded calendar year (average mean temperature): 53.16 °F (11.8 °C), 1958 at the Olympia Regional Airport in Tumwater
Hottest recorded non-calendar year (average mean temperature): 53.24 °F (11.8 °C), September 1957 through August 1958 at the Olympia Regional Airport in Tumwater
Earliest and latest calendar date that the hottest day of the summer came: May 22 & September 23 for the Olympia Regional Airport in Tumwater
Cold Extremes
Lowest recorded temperatures: -8 °F on 1-1-1979 at the Olympia Regional Airport in Tumwater, and -7 °F on 1-27-1972 and 12-23-1983 at the Olympia Regional Airport in Tumwater
Lowest recorded day-time high temperature: 15 °F (-9.4 °C) on 1-31-1893 at the Olympia Army Signal Corps
Longest recorded streak of consecutive days with daytime high temperatures not reaching above freezing: 10 days, 1/20/1969 - 1/29/1969 at the Olympia Regional Airport in Tumwater
Longest period of temperatures averaging freezing (not freezing all the time): 44 days, 1/1/1949 - 2/13/1949 at the Olympia Regional Airport in Tumwater
Deepest recorded frost depth in the ground: 10 in (25.4 cm), measured either during February 1949, January 1950, or February 1950
Coldest recorded month (average mean temperature): 25.82 °F (-3.4 °C), January 1950 at the Olympia Regional Airport in Tumwater
Coldest recorded spring (average mean temperature): 44.48 °F (6.9 °C), Spring of 1955 at the Olympia Regional Airport in Tumwater
Coolest recorded summer (average mean temperature): 58.91 °F (15 °C), Summer of 1954 at the Olympia Regional Airport in Tumwater
Coldest recorded fall (average mean temperature): 46.53 °F (8.1 °C), Fall of 1985 at the Olympia Regional Airport in Tumwater
Coldest recorded winter (average mean temperature): 33.35 °F (0.750000000006025 °C), Winter of 1948-1949 at the Olympia Regional Airport in Tumwater
Coldest recorded calendar year (average mean temperature): 47.62 °F (8.7 °C), 1955 at the Olympia Regional Airport in Tumwater
Coldest recorded non-calendar year (average mean temperature): 47.32 °F (8.5 °C), March 1955 through February 1956 at the Olympia Regional Airport in Tumwater
Earliest and latest calendar date that the coldest day of the winter came: October 31 & March 1 for the Olympia Regional Airport in Tumwater
Snow and Ice Extremes
Highest recorded snow depth: 36 inches+ (91 cm+) on 1-9-1880 at Bush Prairie in Tumwater
Most snowfall recorded in one day: 14.2 in (36.1 cm) on 1-24-1972 at the Olympia Regional Airport in Tumwater
Most snowfall recorded in one month: 58.7 in (149.1 cm) in January 1969 at the Olympia Regional Airport in Tumwater
Most snowfall recorded in one winter: 81.5 in (207 cm) in the Winter of 1968-1969 at the Olympia Regional Airport in Tumwater
Earliest calendar day of the year that snowfall was recorded: September 6, 0.1 in (0.254 cm) of snow on 9/6/1919 at Priest Point Park in Olympia
Latest calendar day of the year that snowfall was recorded: April 23, 0.1 in (0.254 cm) of snow on 4/23/1955 at the Olympia Regional Airport in Tumwater
Thickest recorded ice coating from freezing rain: 0.25 in (0.635 cm) to 0.75 in (1.9 cm) on 12-26-1996 during an ice storm
Highest pre-historic glacial ice depth: approximately 1000 ft (304.8 m) around 14,500 BCE during the Wisconsin Glaciation (last ice age)
Rain Extremes
Most precipitation recorded in one day: 4.82 in (12.2 cm) on 1-7-2009 at the Olympia Regional Airport in Tumwater
Longest recorded period of non-stop rain: 47.5 hours from 11-5-2006 12:25 PM to 11-7-2006 11:54 AM at the Olympia Regional Airport in Tumwater
Most precipitation recorded in one month: 27.12 in (68.9 cm) in December 1933 at Priest Point Park in Olympia
Most precipitation recorded in one spring: 19.69 in (50 cm) in the Spring of 1997 at the Olympia Regional Airport in Tumwater
Most precipitation recorded in one summer: 8.77 in (22.3 cm) in the Summer of 1968 at the Olympia Regional Airport in Tumwater
Most precipitation recorded in one fall: 28 in (71.1 cm) in the Fall of 1906 at Priest Point Park in Olympia
Most precipitation recorded in one winter: 40.74 in (103.5 cm) in the Winter of 1998-1999 at the Olympia Regional Airport in Tumwater
Most precipitation recorded in one calendar year: 72.59 in (184.4 cm) in 1933 at Priest Point Park in Olympia
Most precipitation recorded in one non-calendar year: 77.52 in (196.9 cm) December 1933 through November 1934 at Priest Point Park in Olympia
Most number of consecutive days with measurable precipitation: 35 days, 12/18/2005 - 1/21/2006 at the Olympia Regional Airport in Tumwater
Drought Extremes
Least precipitation recorded in one spring: 3.24 in (8.2 cm) in the Spring of 1924 at Priest Point Park in Olympia
Least precipitation recorded in one summer: 0.45 in (1.1 cm) in the Summer of 1970 at the Olympia Regional Airport in Tumwater
Least precipitation recorded in one fall: 2.05 in (5.2 cm) in the Fall of 1929 at Priest Point Park in Olympia
Least precipitation recorded in one winter: 8.25 in (21 cm) in the Winter of 1976-1977 at the Olympia Regional Airport in Tumwater
Least precipitation recorded in one calendar year: 26.5 in (67.3 cm) in 1944 at Priest Point Park in Olympia
Least precipitation recorded in one non-calendar year: 24.46 in (62.1 cm) December 1928 through November 1929 at Priest Point Park in Olympia
Most number of consecutive days with no precipitation: 43 days, 7/20/1967 - 8/31/1967 at the Olympia Regional Airport in Tumwater
Wind Extremes
Highest recorded wind gust: 78 miles per hour (34.9 m/s) (68 Knots) which is 16.4 lbs. per sq. ft. of force, recorded on 10-12-1962 at the Olympia Regional Airport in Tumwater during the Columbus Day Storm, and on 12-15-2006 at the KGY Radio Station in Olympia during the Hanukkah Eve Wind Storm
Highest recorded 1-minute sustained wind: 60 miles per hour (26.8 m/s) (52 Knots) on 11-3-1958 at the Olympia Regional Airport in Tumwater
Lowest recorded barometric pressure: 28.48 inches (964.4 MB) on 1-9-1880 during a major snow storm
Olympia, Washington
Olympia is the capital city of the U.S. state of Washington and the county seat of Thurston County. It was incorporated on January 28, 1859. The population was 46,478 at the 2010 census...
and Tumwater
Tumwater, Washington
Tumwater is a city in Thurston County, Washington, United States. It lies near where the Deschutes River enters Budd Inlet, the southernmost point of Puget Sound. The population was 17,371 at the 2010 census...
, Washington, U.S., follow.
The Priest Point Park weather station in Olympia has not been in use since 1955.
The closest weather station to Olympia today is at the Olympia Regional Airport
Olympia Airport
Olympia Regional Airport is a public use airport located four nautical miles south of the central business district of Olympia, a city in Thurston County and the capital of the U.S. state of Washington. Formerly known as Olympia Airport, it is owned by the Port of Olympia...
in Tumwater.
Average temperatures for each month for the Olympia Regional Airport in Tumwater
Degrees FahrenheitJanuary: Hi 44.5 °F (6.9 °C) Lo 31.6 °F (-.2 °C)
February: Hi 49.2 °F (9.6 °C) Lo 32.4 °F (0.222222222223991 °C)
March: Hi 53.3 °F (11.8 °C) Lo 33.8 °F (1 °C)
April: Hi 59 °F (15 °C) Lo 36.5 °F (2.5 °C)
May: Hi 65.8 °F (18.8 °C) Lo 41.6 °F (5.3 °C)
June: Hi 71 °F (21.7 °C) Lo 46.6 °F (8.1 °C)
July: Hi 77.2 °F (25.1 °C) Lo 49.5 °F (9.7 °C)
August: Hi 77 °F (25 °C) Lo 49.5 °F (9.7 °C)
September: Hi 71.6 °F (22 °C) Lo 45.2 °F (7.3 °C)
October: Hi 60.5 °F (15.8 °C) Lo 39.7 °F (4.3 °C)
November: Hi 50.5 °F (10.3 °C) Lo 35.6 °F (2 °C)
December: Hi 44.7 °F (7.1 °C) Lo 32.6 °F (0.333333333335986 °C)
Average mean temperature of Spring: 48.3 °F (9.1 °C)
Average mean temperature of Summer: 61.8 °F (16.6 °C)
Average mean temperature of Fall: 50.5 °F (10.3 °C)
Average mean temperature of Winter: 39.2 °F (4 °C)
Average year-round mean temperature: 49.9 °F (9.9 °C)
Highest temperature reached in an average year: 95.3 °F (35.2 °C)
Lowest temperature reached in an average year: 9.9 °F (-12.3 °C)
Average precipitation for each month for the Olympia Regional Airport in Tumwater
January: 8.04 in (20.4 cm)February: 5.68 in (14.4 cm)
March: 5.13 in (13 cm)
April: 3.3 in (8.4 cm)
May: 2.03 in (5.2 cm)
June: 1.54 in (3.9 cm)
July: 0.72 in (1.8 cm)
August: 1.16 in (2.9 cm)
September: 2 in (5.1 cm)
October: 4.69 in (11.9 cm)
November: 8.26 in (21 cm)
December: 8.15 in (20.7 cm)
Spring: 10.46 in (26.6 cm)
Summer: 3.42 in (8.7 cm)
Fall: 14.95 in (38 cm)
Winter: 21.87 in (55.5 cm)
Total for the Year: 50.7 in (128.8 cm)
Average snowfall for each month for the Olympia Regional Airport in Tumwater
November: 1.4 in (3.6 cm)December: 3.5 in (8.9 cm)
January: 6.8 in (17.3 cm)
February: 3.2 in (8.1 cm)
March: 1.7 in (4.3 cm)
April:0.1 in (0.254 cm)
Total for the year: 16.7 in (42.4 cm)
Averages for entire year for the Olympia Regional Airport in Tumwater
Average number of rainy days: 161.6Average number of cloudy days: 228.5
Average number of partly sunny days: 84.4
Average number of sunny days: 52.3
Average cloud cover: 75%
Average number of days with minimums of or below 32 °F (0 °C): 85.2
Average number of days with maximums of or above 90 °F (32.2 °C): 6.3
Average number of days with fog: 225
Average number of heating degree days: 5655
Statistical Days for the Olympia Regional Airport in Tumwater
January 1 - Statistical coldest day of the yearJanuary 1 - Statistical smallest temperature difference between day and night
January 18 - Statistical snowiest day of the year
March 3 - Statistical last snowfall of the season (0.1 in (0.254 cm)or greater)
April 28 - Statistical most moderate temperature day of the year (Spring)
July 28 - Statistical least rainy day of the year
July 31 - Statistical hottest day of the year
August 1 - Statistical day with biggest temperature difference between day and night
October 17 - Statistical most moderate temperature day of the year (Fall)
November 17 - Statistical most likely day for a windstorm
November 27 - Statistical rainiest day of the year
December 15 - Statistical first snowfall of the season (0.1 in (0.254 cm) inches or greater)
Statistical beginning and ending of seasons based on temperature averages for the Olympia Regional Airport in Tumwater
Winter - November 24 through February 22Spring - February 23 through June 14
Summer - June 15 through September 13
Fall - September 14 through November 23
Statistical first and last frost and freeze dates of the year for the Olympia Regional Airport in Tumwater
First average 36 °F (2.2 °C) temperature: September 23First average 32 °F (0 °C) temperature: October 9
First average 28 °F (-2.2 °C) temperature: October 31
First average 24 °F (-4.4 °C) temperature: November 19
First average 20 °F (-6.7 °C) temperature: December 16
Last average 20 °F (-6.7 °C) temperature: February 5
Last average 24 °F (-4.4 °C) temperature: March 5
Last average 28 °F (-2.2 °C) temperature: April 18
Last average 32 °F (0 °C) temperature: May 8
Last average 36 °F (2.2 °C) temperature: May 28
Record high and low temperatures for each month for the Olympia-Tumwater Area
January: Hi 74 °F (23.3 °C) (1-2-1923) Lo -8 °F (1-1-1979)February: Hi 73 °F (22.8 °C) (2-27-1986) Lo -1 °F (2-1-1950)
March: Hi 79 °F (26.1 °C) (3-29-2004) Lo 9 °F (-12.8 °C) (3-3-1989)
April: Hi 90 °F (32.2 °C) (4-12-1904) Lo 21 °F (-6.1 °C) (4-2-1921)
May: Hi 96 °F (35.6 °C) (5-28-1983) Lo 25 °F (-3.9 °C) (5-1-1954)
June: Hi 101 °F (38.3 °C) (6-26-1925, 6-30-1942) Lo 30 °F (-1.1 °C) (6-3-1976)
July: Hi 104 °F (40 °C) (7-3-1906, 7-15-1941, 7-16,1941, 7-29-2009) Lo 32 °F (0 °C) (7-27-1919, 7-31-1919)
August: Hi 104 °F (40 °C) (8-9-1981) Lo 33 °F (0.555555555559977 °C) (8-18-1973)
September: Hi 98 °F (36.7 °C) (9-2-1988) Lo 25 °F (-3.9 °C) (9-27-1972)
October: Hi 90 °F (32.2 °C) (10-1-1987) Lo 14 °F (-10 °C) (10-31-2002)
November: Hi 74 °F (23.3 °C) (10-4-1949) Lo -1 °F (11-15-1955)
December: Hi 70 °F (21.1 °C) (12-8-1906) Lo -7 °F (12-23-1983)
Weather Extremes for the Olympia-Tumwater Area
Heat ExtremesHighest recorded temperatures: 104 °F (40 °C) on 7-3-1906, 7-15-1941, and 7-16,1941 at Priest Point Park in Olympia and on 8-9-1981 and 7-29-2009 at the Olympia Regional Airport in Tumwater
Highest recorded morning low temperature: 76 °F (24.4 °C) on 7-23-1924 at Priest Point Park in Olympia
Longest recorded streak of consecutive days with high temperatures reaching 90 °F (32.2 °C) or above: 8 days, 7/26/2009 - 8/2/2009 at the Olympia Regional Airport in Tumwater
Hottest recorded month (average mean temperature): 69.1 °F (20.6 °C), July 1958 at the Olympia Regional Airport in Tumwater
Warmest recorded spring (average mean temperature): 53.07 °F (11.7 °C), Spring of 1941 at Priest Point Park in Olympia , temperature adjusted approximately to what it would be at the Olympia Regional Airport
Hottest recorded summer (average mean temperature): 66.4 °F (19.1 °C), Summer of 1958 at the Olympia Regional Airport
Warmest recorded fall (average mean temperature): 54.49 °F (12.5 °C), Fall of 1937 at Priest Point Park in Olympia, temperature adjusted approximately to what it would be at the Olympia Regional Airport
Warmest recorded winter (average mean temperature): 43.08 °F (6.2 °C), Winter of 1980-1981 at the Olympia Regional Airport in Tumwater
Hottest recorded calendar year (average mean temperature): 53.16 °F (11.8 °C), 1958 at the Olympia Regional Airport in Tumwater
Hottest recorded non-calendar year (average mean temperature): 53.24 °F (11.8 °C), September 1957 through August 1958 at the Olympia Regional Airport in Tumwater
Earliest and latest calendar date that the hottest day of the summer came: May 22 & September 23 for the Olympia Regional Airport in Tumwater
Cold Extremes
Lowest recorded temperatures: -8 °F on 1-1-1979 at the Olympia Regional Airport in Tumwater, and -7 °F on 1-27-1972 and 12-23-1983 at the Olympia Regional Airport in Tumwater
Lowest recorded day-time high temperature: 15 °F (-9.4 °C) on 1-31-1893 at the Olympia Army Signal Corps
Longest recorded streak of consecutive days with daytime high temperatures not reaching above freezing: 10 days, 1/20/1969 - 1/29/1969 at the Olympia Regional Airport in Tumwater
Longest period of temperatures averaging freezing (not freezing all the time): 44 days, 1/1/1949 - 2/13/1949 at the Olympia Regional Airport in Tumwater
Deepest recorded frost depth in the ground: 10 in (25.4 cm), measured either during February 1949, January 1950, or February 1950
Coldest recorded month (average mean temperature): 25.82 °F (-3.4 °C), January 1950 at the Olympia Regional Airport in Tumwater
Coldest recorded spring (average mean temperature): 44.48 °F (6.9 °C), Spring of 1955 at the Olympia Regional Airport in Tumwater
Coolest recorded summer (average mean temperature): 58.91 °F (15 °C), Summer of 1954 at the Olympia Regional Airport in Tumwater
Coldest recorded fall (average mean temperature): 46.53 °F (8.1 °C), Fall of 1985 at the Olympia Regional Airport in Tumwater
Coldest recorded winter (average mean temperature): 33.35 °F (0.750000000006025 °C), Winter of 1948-1949 at the Olympia Regional Airport in Tumwater
Coldest recorded calendar year (average mean temperature): 47.62 °F (8.7 °C), 1955 at the Olympia Regional Airport in Tumwater
Coldest recorded non-calendar year (average mean temperature): 47.32 °F (8.5 °C), March 1955 through February 1956 at the Olympia Regional Airport in Tumwater
Earliest and latest calendar date that the coldest day of the winter came: October 31 & March 1 for the Olympia Regional Airport in Tumwater
Snow and Ice Extremes
Highest recorded snow depth: 36 inches+ (91 cm+) on 1-9-1880 at Bush Prairie in Tumwater
Most snowfall recorded in one day: 14.2 in (36.1 cm) on 1-24-1972 at the Olympia Regional Airport in Tumwater
Most snowfall recorded in one month: 58.7 in (149.1 cm) in January 1969 at the Olympia Regional Airport in Tumwater
Most snowfall recorded in one winter: 81.5 in (207 cm) in the Winter of 1968-1969 at the Olympia Regional Airport in Tumwater
Earliest calendar day of the year that snowfall was recorded: September 6, 0.1 in (0.254 cm) of snow on 9/6/1919 at Priest Point Park in Olympia
Latest calendar day of the year that snowfall was recorded: April 23, 0.1 in (0.254 cm) of snow on 4/23/1955 at the Olympia Regional Airport in Tumwater
Thickest recorded ice coating from freezing rain: 0.25 in (0.635 cm) to 0.75 in (1.9 cm) on 12-26-1996 during an ice storm
Highest pre-historic glacial ice depth: approximately 1000 ft (304.8 m) around 14,500 BCE during the Wisconsin Glaciation (last ice age)
Rain Extremes
Most precipitation recorded in one day: 4.82 in (12.2 cm) on 1-7-2009 at the Olympia Regional Airport in Tumwater
Longest recorded period of non-stop rain: 47.5 hours from 11-5-2006 12:25 PM to 11-7-2006 11:54 AM at the Olympia Regional Airport in Tumwater
Most precipitation recorded in one month: 27.12 in (68.9 cm) in December 1933 at Priest Point Park in Olympia
Most precipitation recorded in one spring: 19.69 in (50 cm) in the Spring of 1997 at the Olympia Regional Airport in Tumwater
Most precipitation recorded in one summer: 8.77 in (22.3 cm) in the Summer of 1968 at the Olympia Regional Airport in Tumwater
Most precipitation recorded in one fall: 28 in (71.1 cm) in the Fall of 1906 at Priest Point Park in Olympia
Most precipitation recorded in one winter: 40.74 in (103.5 cm) in the Winter of 1998-1999 at the Olympia Regional Airport in Tumwater
Most precipitation recorded in one calendar year: 72.59 in (184.4 cm) in 1933 at Priest Point Park in Olympia
Most precipitation recorded in one non-calendar year: 77.52 in (196.9 cm) December 1933 through November 1934 at Priest Point Park in Olympia
Most number of consecutive days with measurable precipitation: 35 days, 12/18/2005 - 1/21/2006 at the Olympia Regional Airport in Tumwater
Drought Extremes
Least precipitation recorded in one spring: 3.24 in (8.2 cm) in the Spring of 1924 at Priest Point Park in Olympia
Least precipitation recorded in one summer: 0.45 in (1.1 cm) in the Summer of 1970 at the Olympia Regional Airport in Tumwater
Least precipitation recorded in one fall: 2.05 in (5.2 cm) in the Fall of 1929 at Priest Point Park in Olympia
Least precipitation recorded in one winter: 8.25 in (21 cm) in the Winter of 1976-1977 at the Olympia Regional Airport in Tumwater
Least precipitation recorded in one calendar year: 26.5 in (67.3 cm) in 1944 at Priest Point Park in Olympia
Least precipitation recorded in one non-calendar year: 24.46 in (62.1 cm) December 1928 through November 1929 at Priest Point Park in Olympia
Most number of consecutive days with no precipitation: 43 days, 7/20/1967 - 8/31/1967 at the Olympia Regional Airport in Tumwater
Wind Extremes
Highest recorded wind gust: 78 miles per hour (34.9 m/s) (68 Knots) which is 16.4 lbs. per sq. ft. of force, recorded on 10-12-1962 at the Olympia Regional Airport in Tumwater during the Columbus Day Storm, and on 12-15-2006 at the KGY Radio Station in Olympia during the Hanukkah Eve Wind Storm
Highest recorded 1-minute sustained wind: 60 miles per hour (26.8 m/s) (52 Knots) on 11-3-1958 at the Olympia Regional Airport in Tumwater
Lowest recorded barometric pressure: 28.48 inches (964.4 MB) on 1-9-1880 during a major snow storm