All-time weather records — Hanna, WY

Record high
95.0°F
June 30, 1963
Record low
-42.0°F
January 12, 1963
Wettest day
3.25 in
June 10, 1986

Climate change signal in Hanna

0.5%

of Hanna's all-time daily heat records were set in the last decade (2 of 366 records since 2015).

0.8%

of all-time daily cold records were set in the last decade (3 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 #
1940s
4
5
1950s
68
119
1960s
59
91
1970s
20
40
1980s
45
34
1990s
28
30
2000s
108
32
2010s
34
15

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 1949, the latest in 2016. Period of observation: 1948-2016.

Records by month

Month Hottest day Coldest day Wettest day
January 66.0°F — Jan 31, 1983 -42.0°F — Jan 12, 1963 2.10 in — Jan 6, 1994
February 60.1°F — Feb 6, 1963 -38.0°F — Feb 2, 2011 0.90 in — Feb 10, 2013
March 71.1°F — Mar 30, 1966 -26.0°F — Mar 25, 1965 1.55 in — Mar 18, 2003
April 75.0°F — Apr 22, 1969 -7.1°F — Apr 20, 1966 1.72 in — Apr 17, 2009
May 84.9°F — May 28, 2014 -4.0°F — May 1, 2011 2.40 in — May 16, 1991
June 95.0°F — Jun 30, 1963 18.0°F — Jun 4, 1955 3.25 in — Jun 10, 1986
July 93.9°F — Jul 12, 1954 28.0°F — Jul 1, 1968 1.93 in — Jul 26, 1987
August 93.0°F — Aug 10, 2000 24.1°F — Aug 25, 1964 1.83 in — Aug 16, 2009
September 89.1°F — Sep 4, 1998 6.1°F — Sep 30, 1985 1.52 in — Sep 16, 1965
October 81.0°F — Oct 1, 1957 -11.0°F — Oct 13, 1969 1.27 in — Oct 17, 1998
November 66.9°F — Nov 1, 1965 -18.9°F — Nov 27, 1976 1.51 in — Nov 6, 1990
December 57.9°F — Dec 17, 1980 -35.0°F — Dec 21, 1990 1.60 in — Dec 13, 1992

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