All-time weather records — Maple Valley, WA

Record high
111.9°F
June 28, 2021
Record low
0.0°F
February 5, 1989
Wettest day
5.50 in
October 20, 2003

Climate change signal in Maple Valley

15%

of Maple Valley's all-time daily heat records were set in the last decade (55 of 366 records since 2015).

4.4%

of all-time daily cold records were set in the last decade (16 of 366 records since 2015).

If records were spread evenly across the station's history, you'd expect roughly 5% per decade. Decade-by-decade, here's where each record-breaking day was set:

Decade Heat records set # Cold records set #
1900s
·
·
1910s
8
15
1920s
44
58
1930s
48
71
1940s
63
30
1950s
33
67
1960s
40
32
1970s
20
32
1980s
17
17
1990s
7
12
2000s
25
9
2010s
28
8
2020s
33
15

Records are the all-time daily extremes that are still standing — each daily record can only be held by one year. The station's earliest hot record was set in 1915, the latest in 2024. Period of observation: 1903-2025.

Records by month

Month Hottest day Coldest day Wettest day
January 68.0°F — Jan 31, 1935 1.0°F — Jan 18, 1950 3.34 in — Jan 22, 1919
February 73.9°F — Feb 28, 1968 0.0°F — Feb 5, 1989 4.23 in — Feb 8, 1996
March 84.0°F — Mar 18, 1928 12.0°F — Mar 3, 1989 2.63 in — Mar 5, 1972
April 89.1°F — Apr 18, 2016 23.0°F — Apr 2, 2008 3.20 in — Apr 4, 1991
May 102.0°F — May 28, 1983 23.0°F — May 12, 1965 2.35 in — May 29, 1969
June 111.9°F — Jun 28, 2021 30.9°F — Jun 1, 1933 2.38 in — Jun 1, 1968
July 100.9°F — Jul 10, 1926 30.9°F — Jul 4, 2023 1.80 in — Jul 2, 1916
August 102.0°F — Aug 9, 1981 28.9°F — Aug 25, 1925 2.76 in — Aug 26, 2004
September 97.0°F — Sep 2, 2006 23.0°F — Sep 22, 2000 2.70 in — Sep 20, 1945
October 88.0°F — Oct 16, 2022 17.1°F — Oct 30, 2006 5.50 in — Oct 20, 2003
November 75.9°F — Nov 2, 1949 3.9°F — Nov 15, 1955 4.00 in — Nov 6, 2006
December 72.0°F — Dec 28, 1937 0.0°F — Dec 18, 1924 5.50 in — Dec 9, 2016

Click a month to see every daily record for that month in Maple Valley.