All-time weather records — Vernonia, OR
Climate change signal in Vernonia
of Vernonia's all-time daily heat records were set in the last decade (93 of 366 records since 2015).
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.