All-time weather records — Willcox, AZ

Record high
111.9°F
June 20, 2016
Record low
-7.1°F
December 8, 1978
Wettest day
3.65 in
August 14, 1980

Climate change signal in Willcox

39.3%

of Willcox's all-time daily heat records were set in the last decade (144 of 366 records since 2015).

1.4%

of all-time daily cold records were set in the last decade (5 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
12
39
1910s
45
50
1920s
6
38
1930s
·
31
1940s
28
23
1950s
26
34
1960s
10
87
1970s
9
50
1980s
26
2
1990s
15
1
2000s
18
1
2010s
71
9
2020s
100
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 1904, the latest in 2026. Period of observation: 1898-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 84.9°F — Jan 31, 2024 -0.9°F — Jan 15, 1962 1.86 in — Jan 9, 1905
February 88.0°F — Feb 14, 1957 1.9°F — Feb 21, 1971 1.51 in — Feb 14, 1980
March 98.1°F — Mar 22, 2026 6.1°F — Mar 9, 1964 1.50 in — Mar 16, 1905
April 99.0°F — Apr 29, 2020 9.0°F — Apr 17, 1971 1.07 in — Apr 28, 1931
May 105.1°F — May 27, 1951 10.9°F — May 8, 1971 1.40 in — May 20, 1997
June 111.9°F — Jun 20, 2016 27.0°F — Jun 5, 1971 1.73 in — Jun 2, 1952
July 109.9°F — Jul 6, 1905 37.0°F — Jul 31, 2015 2.28 in — Jul 21, 1954
August 109.0°F — Aug 7, 2025 41.0°F — Aug 18, 1938 3.65 in — Aug 14, 1980
September 105.1°F — Sep 1, 2011 30.0°F — Sep 21, 1965 2.11 in — Sep 28, 1941
October 100.9°F — Oct 1, 2010 15.1°F — Oct 27, 1970 2.50 in — Oct 5, 1989
November 91.0°F — Nov 4, 1915 8.1°F — Nov 19, 1921 1.62 in — Nov 28, 2019
December 81.0°F — Dec 5, 1916 -7.1°F — Dec 8, 1978 1.42 in — Dec 22, 1965

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