All-time weather records — Plains, MT
Climate change signal in Plains
of Plains's all-time daily heat records were set in the last decade (0 of 366 records since 2015).
of all-time daily cold records were set in the last decade (0 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 | 121 | 98 | ||
| 1970s | 69 | 89 | ||
| 1980s | 55 | 43 | ||
| 1990s | 64 | 45 | ||
| 2000s | 52 | 38 | ||
| 2010s | 5 | 53 |
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 1960, the latest in 2014. Period of observation: 1960-2014.
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | 61.0°F — Jan 31, 1962 | -32.1°F — Jan 21, 1962 | 1.45 in — Jan 17, 1982 |
| February | 66.9°F — Feb 24, 1995 | -26.0°F — Feb 2, 1996 | 1.32 in — Feb 3, 1963 |
| March | 77.0°F — Mar 30, 2004 | -29.0°F — Mar 26, 2002 | 0.90 in — Mar 29, 1963 |
| April | 90.0°F — Apr 27, 1987 | 3.9°F — Apr 17, 2013 | 1.40 in — Apr 24, 1996 |
| May | 96.1°F — May 26, 1986 | 9.0°F — May 1, 2013 | 1.48 in — May 16, 1980 |
| June | 99.0°F — Jun 18, 1986 | 19.0°F — Jun 1, 2013 | 1.79 in — Jun 8, 1964 |
| July | 102.9°F — Jul 13, 2002 | 10.9°F — Jul 11, 2000 | 1.34 in — Jul 1, 1982 |
| August | 108.0°F — Aug 4, 1961 | 16.0°F — Aug 30, 2010 | 1.22 in — Aug 22, 1992 |
| September | 100.0°F — Sep 1, 1967 | 16.0°F — Sep 13, 1994 | 1.70 in — Sep 9, 1986 |
| October | 89.1°F — Oct 1, 1963 | -6.0°F — Oct 31, 2002 | 1.67 in — Oct 27, 1994 |
| November | 64.9°F — Nov 12, 1999 | -11.9°F — Nov 23, 1985 | 1.84 in — Nov 24, 1964 |
| December | 53.1°F — Dec 7, 1962 | -34.1°F — Dec 30, 1968 | 1.28 in — Dec 29, 1996 |
Click a month to see every daily record for that month in Plains.