All-time weather records — Troy, MT

Record high
109.9°F
July 30, 2003
Record low
-35.0°F
December 30, 1968
Wettest day
3.34 in
May 27, 1998

Climate change signal in Troy

18.3%

of Troy's all-time daily heat records were set in the last decade (67 of 366 records since 2015).

4.1%

of all-time daily cold records were set in the last decade (15 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
46
112
1970s
36
75
1980s
38
69
1990s
78
30
2000s
82
60
2010s
46
8
2020s
40
12

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 1961, the latest in 2025. Period of observation: 1960-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 57.0°F — Jan 31, 2020 -27.9°F — Jan 5, 2004 2.09 in — Jan 13, 1969
February 64.0°F — Feb 26, 1995 -20.0°F — Feb 5, 1989 1.31 in — Feb 8, 1996
March 82.0°F — Mar 31, 2004 -6.0°F — Mar 11, 2009 2.49 in — Mar 16, 2015
April 87.1°F — Apr 25, 1977 8.1°F — Apr 1, 1975 1.25 in — Apr 5, 1991
May 97.0°F — May 23, 2001 21.9°F — May 1, 1973 3.34 in — May 27, 1998
June 109.0°F — Jun 29, 2021 27.0°F — Jun 25, 1985 1.60 in — Jun 19, 2013
July 109.9°F — Jul 30, 2003 26.1°F — Jul 18, 1962 1.97 in — Jul 30, 1997
August 109.9°F — Aug 15, 1994 30.9°F — Aug 30, 1980 1.84 in — Aug 30, 1986
September 102.0°F — Sep 6, 1998 17.1°F — Sep 29, 1985 1.21 in — Sep 16, 2004
October 84.0°F — Oct 6, 2003 -2.9°F — Oct 29, 2002 1.45 in — Oct 29, 2021
November 69.1°F — Nov 4, 1975 -14.1°F — Nov 29, 1985 1.81 in — Nov 25, 1990
December 60.1°F — Dec 1, 2021 -35.0°F — Dec 30, 1968 2.09 in — Dec 22, 1964

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