All-time weather records — Ottawa, KS

Record high
430.0°F
March 13, 1948
Record low
-27.9°F
February 13, 1905
Wettest day
8.45 in
August 1, 2019

Climate change signal in Ottawa

5.5%

of Ottawa's all-time daily heat records were set in the last decade (20 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
9
30
1900s
24
64
1910s
39
42
1920s
13
24
1930s
84
24
1940s
18
32
1950s
57
21
1960s
26
17
1970s
10
24
1980s
24
39
1990s
16
14
2000s
19
6
2010s
13
17
2020s
14
12

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 1895, the latest in 2026. Period of observation: 1895-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 75.9°F — Jan 24, 1950 -20.0°F — Jan 4, 1947 2.60 in — Jan 30, 1982
February 84.0°F — Feb 25, 1981 -27.9°F — Feb 13, 1905 2.86 in — Feb 21, 1997
March 430.0°F — Mar 13, 1948 -9.0°F — Mar 12, 1948 2.54 in — Mar 5, 2004
April 96.1°F — Apr 29, 1910 10.9°F — Apr 5, 1920 4.27 in — Apr 22, 1944
May 100.9°F — May 31, 2000 21.0°F — May 4, 1907 4.06 in — May 16, 1898
June 108.0°F — Jun 27, 1980 39.9°F — Jun 4, 1897 5.46 in — Jun 9, 1984
July 118.0°F — Jul 14, 1954 46.9°F — Jul 5, 1972 5.77 in — Jul 7, 1909
August 113.0°F — Aug 14, 1936 42.1°F — Aug 27, 1910 8.45 in — Aug 1, 2019
September 111.0°F — Sep 3, 1947 27.0°F — Sep 28, 1908 6.32 in — Sep 13, 1961
October 98.1°F — Oct 7, 1939 16.0°F — Oct 30, 1917 5.75 in — Oct 25, 2023
November 86.0°F — Nov 7, 1980 1.0°F — Nov 16, 1932 6.95 in — Nov 16, 1928
December 89.1°F — Dec 12, 1922 -22.0°F — Dec 23, 1989 2.05 in — Dec 15, 1971

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