All-time weather records — Libby, MT

Record high
109.9°F
July 15, 2007
Record low
-45.9°F
January 2, 1924
Wettest day
3.11 in
May 27, 1998

Climate change signal in Libby

3%

of Libby's all-time daily heat records were set in the last decade (11 of 366 records since 2015).

0.3%

of all-time daily cold records were set in the last decade (1 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 #
1890s
30
22
1910s
22
59
1920s
44
46
1930s
63
45
1940s
34
39
1950s
20
65
1960s
40
29
1970s
13
27
1980s
12
9
1990s
45
5
2000s
21
18
2010s
21
1
2020s
1
1

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 1895, the latest in 2021. Period of observation: 1895-2022.

Records by month

Month Hottest day Coldest day Wettest day
January 55.9°F — Jan 27, 1934 -45.9°F — Jan 2, 1924 2.04 in — Jan 9, 1953
February 64.9°F — Feb 25, 1995 -36.9°F — Feb 9, 1933 1.11 in — Feb 15, 1986
March 75.0°F — Mar 22, 1939 -20.0°F — Mar 3, 1960 1.46 in — Mar 15, 2015
April 90.0°F — Apr 25, 1977 -5.1°F — Apr 1, 1936 1.25 in — Apr 28, 1922
May 102.0°F — May 30, 1936 12.0°F — May 1, 1954 3.11 in — May 27, 1998
June 107.1°F — Jun 29, 2015 6.1°F — Jun 25, 1930 2.18 in — Jun 21, 1984
July 109.9°F — Jul 15, 2007 30.0°F — Jul 1, 1949 2.02 in — Jul 24, 1990
August 109.0°F — Aug 4, 1961 26.1°F — Aug 14, 1895 1.55 in — Aug 7, 1911
September 105.1°F — Sep 4, 1998 12.9°F — Sep 24, 1926 1.76 in — Sep 15, 1959
October 89.1°F — Oct 3, 1943 -7.1°F — Oct 31, 1935 1.30 in — Oct 3, 1927
November 73.0°F — Nov 16, 1895 -27.0°F — Nov 28, 1896 2.11 in — Nov 18, 1946
December 64.9°F — Dec 12, 1924 -38.9°F — Dec 30, 1968 2.50 in — Dec 5, 2003

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