All-time weather records — Mountain Grove, MO

Record high
109.9°F
August 9, 1934
Record low
-20.9°F
February 13, 1905
Wettest day
70.00 in
April 20, 1983

Climate change signal in Mountain Grove

4.6%

of Mountain Grove's all-time daily heat records were set in the last decade (17 of 366 records since 2015).

3.6%

of all-time daily cold records were set in the last decade (13 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
18
30
1910s
36
45
1920s
45
48
1930s
97
26
1940s
15
21
1950s
57
27
1960s
25
31
1970s
9
25
1980s
13
61
1990s
5
19
2000s
19
12
2010s
14
12
2020s
13
9

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 1901, the latest in 2026. Period of observation: 1901-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 78.1°F — Jan 24, 1943 -20.0°F — Jan 13, 1912 3.58 in — Jan 30, 1916
February 84.0°F — Feb 28, 2024 -20.9°F — Feb 13, 1905 4.00 in — Feb 14, 2012
March 89.1°F — Mar 22, 1916 -7.1°F — Mar 5, 1960 4.62 in — Mar 25, 1904
April 91.0°F — Apr 30, 1952 15.1°F — Apr 4, 1920 70.00 in — Apr 20, 1983
May 97.0°F — May 30, 1934 28.0°F — May 1, 1903 4.55 in — May 15, 1956
June 105.1°F — Jun 28, 1936 39.9°F — Jun 6, 1928 4.24 in — Jun 1, 2013
July 109.0°F — Jul 15, 1936 45.0°F — Jul 5, 1915 4.83 in — Jul 28, 1979
August 109.9°F — Aug 9, 1934 39.0°F — Aug 31, 1915 4.96 in — Aug 16, 2024
September 104.0°F — Sep 4, 1947 27.0°F — Sep 24, 1989 4.66 in — Sep 25, 1993
October 99.0°F — Oct 7, 1901 18.0°F — Oct 30, 1917 3.67 in — Oct 6, 1998
November 90.0°F — Nov 1, 1937 1.9°F — Nov 25, 1950 9.83 in — Nov 5, 2024
December 77.0°F — Dec 31, 1951 -18.9°F — Dec 22, 1989 7.29 in — Dec 3, 1982

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