All-time weather records — Mountain Home, AR

Record high
114.1°F
August 9, 1934
Record low
-16.1°F
December 9, 1917
Wettest day
8.95 in
September 4, 1985

Climate change signal in Mountain Home

7.7%

of Mountain Home's all-time daily heat records were set in the last decade (28 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 #
1900s
7
18
1910s
10
34
1920s
40
72
1930s
136
30
1940s
19
49
1950s
46
36
1960s
22
23
1970s
13
28
1980s
22
35
1990s
4
15
2000s
12
6
2010s
15
10
2020s
20
10

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 1902, the latest in 2026. Period of observation: 1902-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 82.9°F — Jan 24, 1943 -15.0°F — Jan 12, 1918 4.20 in — Jan 30, 1969
February 88.0°F — Feb 28, 2024 -14.1°F — Feb 2, 1951 4.51 in — Feb 23, 1985
March 96.1°F — Mar 23, 2026 -2.0°F — Mar 12, 1948 6.20 in — Mar 19, 2008
April 95.0°F — Apr 1, 1940 21.0°F — Apr 1, 1924 5.61 in — Apr 5, 2025
May 100.9°F — May 31, 1934 28.9°F — May 1, 1903 4.60 in — May 10, 1943
June 109.9°F — Jun 19, 1936 42.1°F — Jun 16, 1917 3.84 in — Jun 13, 1925
July 111.9°F — Jul 13, 1954 46.0°F — Jul 14, 1975 4.55 in — Jul 18, 1918
August 114.1°F — Aug 9, 1934 46.9°F — Aug 16, 1992 4.50 in — Aug 10, 2023
September 107.1°F — Sep 6, 1925 32.0°F — Sep 27, 1942 8.95 in — Sep 4, 1985
October 97.0°F — Oct 1, 1938 18.0°F — Oct 30, 1917 4.70 in — Oct 31, 1929
November 87.1°F — Nov 6, 1934 9.0°F — Nov 13, 1986 5.19 in — Nov 5, 1994
December 84.0°F — Dec 28, 2025 -16.1°F — Dec 9, 1917 5.85 in — Dec 13, 1927

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