All-time weather records — Ulm, AR

Record high
109.0°F
August 8, 2025
Record low
-6.0°F
December 24, 1963
Wettest day
7.50 in
June 9, 2021

Climate change signal in Ulm

11.7%

of Ulm's all-time daily heat records were set in the last decade (43 of 366 records since 2015).

3.3%

of all-time daily cold records were set in the last decade (12 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 #
1930s
21
17
1940s
32
58
1950s
81
69
1960s
30
68
1970s
23
24
1980s
36
56
1990s
32
27
2000s
57
30
2010s
30
9
2020s
24
8

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 1937, the latest in 2025. Period of observation: 1936-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 80.1°F — Jan 1, 1952 -5.1°F — Jan 12, 1962 4.00 in — Jan 25, 2004
February 80.1°F — Feb 8, 2025 -0.9°F — Feb 2, 1951 4.75 in — Feb 10, 1966
March 89.1°F — Mar 25, 1991 10.9°F — Mar 3, 1943 4.48 in — Mar 29, 1989
April 93.9°F — Apr 19, 2006 21.9°F — Apr 6, 1985 6.25 in — Apr 5, 1997
May 98.1°F — May 27, 2002 37.9°F — May 4, 1954 4.92 in — May 9, 1989
June 102.9°F — Jun 29, 1954 48.0°F — Jun 3, 1995 7.50 in — Jun 9, 2021
July 105.1°F — Jul 14, 1980 52.0°F — Jul 22, 1944 5.16 in — Jul 3, 1951
August 109.0°F — Aug 8, 2025 50.0°F — Aug 29, 1986 5.20 in — Aug 10, 1970
September 105.1°F — Sep 1, 2000 35.1°F — Sep 27, 1942 6.95 in — Sep 27, 1959
October 96.1°F — Oct 1, 1953 23.0°F — Oct 28, 2001 5.56 in — Oct 30, 2009
November 86.0°F — Nov 1, 2016 14.0°F — Nov 27, 1938 5.02 in — Nov 7, 1972
December 80.1°F — Dec 7, 1939 -6.0°F — Dec 24, 1963 5.40 in — Dec 19, 2002

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