All-time weather records — Vernonia, OR

Record high
111.0°F
June 28, 2021
Record low
-11.9°F
December 8, 1972
Wettest day
3.40 in
November 20, 1997

Climate change signal in Vernonia

25.4%

of Vernonia's all-time daily heat records were set in the last decade (93 of 366 records since 2015).

9.3%

of all-time daily cold records were set in the last decade (34 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 #
1960s
25
17
1970s
54
88
1980s
79
64
1990s
52
45
2000s
48
98
2010s
50
37
2020s
58
17

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 1967, the latest in 2026. Period of observation: 1967-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 66.0°F — Jan 23, 1968 -2.0°F — Jan 6, 1979 2.59 in — Jan 1, 2009
February 72.0°F — Mar 1, 1968 -6.0°F — Feb 4, 1989 2.75 in — Feb 8, 1996
March 81.0°F — Mar 26, 2025 12.9°F — Mar 1, 1971 2.33 in — Mar 26, 2005
April 89.1°F — Apr 19, 2016 21.9°F — Apr 7, 1975 3.25 in — Apr 4, 1991
May 99.0°F — May 29, 1983 27.0°F — May 1, 2019 1.43 in — May 3, 1975
June 111.0°F — Jun 28, 2021 30.0°F — Jun 3, 1991 1.14 in — Jun 7, 1985
July 104.0°F — Jul 29, 2009 33.1°F — Jul 1, 2009 1.10 in — Jul 17, 1993
August 102.9°F — Aug 12, 2021 32.0°F — Aug 18, 1973 1.32 in — Aug 24, 1977
September 102.9°F — Sep 3, 1988 23.0°F — Sep 22, 2000 2.05 in — Sep 3, 2000
October 93.0°F — Oct 2, 1987 10.0°F — Oct 30, 2002 2.84 in — Oct 27, 1994
November 73.0°F — Nov 5, 1980 1.9°F — Nov 24, 1985 3.40 in — Nov 20, 1997
December 64.0°F — Dec 26, 2022 -11.9°F — Dec 8, 1972 3.03 in — Dec 2, 2007

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