All-time weather records — Grand Junction, IA

Record high
111.0°F
July 5, 1911
Record low
-36.9°F
January 12, 1912
Wettest day
7.83 in
July 9, 1993

Climate change signal in Grand Junction

6.6%

of Grand Junction's all-time daily heat records were set in the last decade (24 of 366 records since 2015).

4.1%

of all-time daily cold records were set in the last decade (15 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
15
24
1900s
12
17
1910s
31
57
1920s
20
62
1930s
70
36
1940s
12
26
1950s
20
22
1960s
13
24
1970s
17
25
1980s
53
23
1990s
27
16
2000s
30
8
2010s
25
12
2020s
21
14

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 1894, the latest in 2026. Period of observation: 1893-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 69.1°F — Jan 27, 2002 -36.9°F — Jan 12, 1912 1.64 in — Jan 3, 1971
February 77.0°F — Feb 27, 2024 -27.0°F — Feb 2, 1996 1.62 in — Feb 27, 1948
March 91.9°F — Mar 22, 2026 -26.0°F — Mar 1, 1962 2.58 in — Mar 23, 1991
April 96.1°F — Apr 22, 1980 6.1°F — Apr 3, 1936 4.90 in — Apr 24, 1955
May 104.0°F — May 30, 1934 19.0°F — May 2, 1961 5.90 in — May 30, 2008
June 104.0°F — Jun 20, 1988 19.9°F — Jun 1, 1997 5.51 in — Jun 30, 1986
July 111.0°F — Jul 5, 1911 39.9°F — Jul 4, 1895 7.83 in — Jul 9, 1993
August 107.1°F — Aug 5, 1934 32.0°F — Aug 29, 1893 5.50 in — Aug 22, 1954
September 102.0°F — Sep 5, 1913 21.9°F — Sep 28, 1942 4.67 in — Sep 13, 1978
October 96.1°F — Oct 1, 1976 -6.0°F — Oct 30, 1925 2.38 in — Oct 25, 2021
November 81.0°F — Nov 1, 1938 -9.0°F — Nov 7, 1991 2.85 in — Nov 23, 1931
December 71.1°F — Dec 16, 2021 -26.0°F — Dec 26, 1914 1.92 in — Dec 28, 1982

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