All-time weather records — Wallowa, OR

Record high
109.9°F
August 23, 1939
Record low
-38.0°F
December 13, 1919
Wettest day
3.50 in
December 28, 1950

Climate change signal in Wallowa

15.8%

of Wallowa's all-time daily heat records were set in the last decade (58 of 366 records since 2015).

3.8%

of all-time daily cold records were set in the last decade (14 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
14
32
1910s
21
50
1920s
21
33
1930s
60
63
1940s
37
24
1950s
12
37
1960s
20
31
1970s
20
30
1980s
28
24
1990s
40
18
2000s
27
7
2010s
36
12
2020s
30
5

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 1904, the latest in 2025. Period of observation: 1903-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 64.0°F — Jan 31, 1971 -34.1°F — Jan 20, 1937 1.33 in — Jan 15, 1956
February 66.9°F — Feb 20, 1995 -33.0°F — Feb 9, 1933 1.75 in — Feb 7, 1938
March 79.0°F — Mar 26, 2025 -14.1°F — Mar 1, 1917 1.17 in — Mar 31, 1931
April 90.0°F — Apr 24, 1977 5.0°F — Apr 1, 1936 1.50 in — Apr 27, 1978
May 98.1°F — May 17, 2008 16.0°F — May 1, 1954 1.95 in — May 26, 2019
June 109.0°F — Jun 29, 2021 26.1°F — Jun 1, 1984 1.75 in — Jun 26, 1934
July 108.0°F — Jul 12, 2002 7.0°F — Jul 8, 2024 1.98 in — Jul 1, 1982
August 109.9°F — Aug 23, 1939 21.9°F — Aug 7, 1939 1.93 in — Aug 21, 1993
September 102.9°F — Sep 3, 2017 16.0°F — Sep 24, 1926 1.82 in — Sep 22, 1917
October 91.9°F — Oct 2, 2010 5.0°F — Oct 30, 2019 1.56 in — Oct 31, 1995
November 73.9°F — Nov 12, 1999 -22.0°F — Nov 23, 1985 1.85 in — Nov 20, 1921
December 66.9°F — Dec 15, 1929 -38.0°F — Dec 13, 1919 3.50 in — Dec 28, 1950

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