All-time weather records — Hayden, CO

Record high
102.0°F
July 26, 1931
Record low
-45.0°F
January 12, 1963
Wettest day
2.04 in
June 21, 2019

Climate change signal in Hayden

15%

of Hayden's all-time daily heat records were set in the last decade (55 of 366 records since 2015).

2.2%

of all-time daily cold records were set in the last decade (8 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 #
1900s
2
1
1910s
7
29
1920s
34
52
1930s
70
46
1940s
39
46
1950s
19
62
1960s
8
38
1970s
20
38
1980s
50
14
1990s
18
15
2000s
35
10
2010s
19
8
2020s
45
7

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 1909, the latest in 2026. Period of observation: 1909-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 64.9°F — Jan 24, 1950 -45.0°F — Jan 12, 1963 1.08 in — Jan 18, 2019
February 61.0°F — Feb 24, 1981 -44.0°F — Feb 6, 1989 1.24 in — Feb 3, 2024
March 82.0°F — Mar 25, 2026 -25.1°F — Mar 1, 1947 1.15 in — Mar 26, 1932
April 84.0°F — Apr 23, 1930 -5.1°F — Apr 4, 1945 1.59 in — Apr 23, 2003
May 93.9°F — May 28, 1931 15.1°F — May 1, 1972 1.33 in — May 4, 1941
June 100.0°F — Jun 14, 1956 21.0°F — Jun 1, 1922 2.04 in — Jun 21, 2019
July 102.0°F — Jul 26, 1931 26.1°F — Jul 10, 1913 1.49 in — Jul 7, 2015
August 98.1°F — Aug 5, 1979 28.0°F — Aug 24, 1972 2.00 in — Aug 3, 1916
September 93.9°F — Sep 4, 2022 7.0°F — Sep 25, 1926 1.98 in — Sep 13, 1914
October 82.9°F — Oct 2, 1992 -9.9°F — Oct 27, 2020 1.54 in — Oct 20, 1979
November 73.9°F — Nov 7, 1999 -27.0°F — Nov 16, 1955 1.14 in — Nov 3, 1973
December 66.0°F — Dec 3, 1941 -41.1°F — Dec 13, 1932 1.82 in — Dec 30, 1951

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