All-time weather records — Walden, CO

Record high
96.1°F
August 4, 1973
Record low
-49.0°F
February 1, 1951
Wettest day
2.19 in
July 28, 1952

Climate change signal in Walden

10.4%

of Walden's all-time daily heat records were set in the last decade (38 of 366 records since 2015).

10.9%

of all-time daily cold records were set in the last decade (40 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
24
1900s
42
13
1930s
10
8
1940s
21
21
1950s
30
65
1960s
18
50
1970s
19
47
1980s
66
30
1990s
40
23
2000s
37
27
2010s
26
37
2020s
27
21

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 1897, the latest in 2026. Period of observation: 1897-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 55.9°F — Jan 22, 1981 -47.9°F — Jan 6, 2017 0.96 in — Jan 7, 1992
February 54.0°F — Feb 15, 2015 -49.0°F — Feb 1, 1951 0.70 in — Feb 19, 2016
March 73.0°F — Mar 22, 2026 -34.1°F — Mar 12, 1956 0.74 in — Mar 10, 1939
April 73.9°F — Apr 26, 1898 -16.1°F — Apr 2, 1975 1.50 in — Apr 3, 1898
May 84.0°F — May 31, 2002 1.9°F — May 2, 2013 1.63 in — May 17, 1978
June 91.9°F — Jun 23, 1900 17.1°F — Jun 4, 1898 1.41 in — Jun 4, 2005
July 93.9°F — Jul 6, 1989 21.0°F — Jul 20, 1897 2.19 in — Jul 28, 1952
August 96.1°F — Aug 4, 1973 19.0°F — Aug 19, 1978 0.92 in — Aug 26, 2000
September 89.1°F — Sep 4, 1998 0.0°F — Sep 19, 1942 1.47 in — Sep 19, 1997
October 78.1°F — Oct 2, 1992 -27.9°F — Oct 27, 2020 1.37 in — Oct 7, 1990
November 66.0°F — Nov 16, 1953 -32.1°F — Nov 30, 2006 1.10 in — Nov 27, 2005
December 57.9°F — Dec 10, 1939 -42.0°F — Dec 5, 2013 0.90 in — Dec 30, 1951

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