All-time weather records — Leonardtown, MD

Record high
104.0°F
August 7, 1918
Record low
-5.1°F
February 10, 1899
Wettest day
11.85 in
July 23, 1969

Climate change signal in Leonardtown

5.2%

of Leonardtown's all-time daily heat records were set in the last decade (19 of 366 records since 2015).

4.9%

of all-time daily cold records were set in the last decade (18 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
36
30
1900s
23
51
1910s
30
53
1920s
18
51
1930s
36
50
1940s
45
24
1950s
32
10
1960s
18
23
1970s
30
40
1980s
8
12
2000s
48
2
2010s
37
5
2020s
5
15

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 2023. Period of observation: 1893-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 75.9°F — Jan 23, 2017 -2.9°F — Jan 21, 1918 2.71 in — Jan 13, 1948
February 79.0°F — Mar 1, 1972 -5.1°F — Feb 10, 1899 3.60 in — Feb 6, 1896
March 89.1°F — Mar 23, 1907 10.0°F — Mar 3, 1980 2.40 in — Mar 31, 1974
April 91.0°F — Apr 8, 2010 17.1°F — Apr 1, 1923 3.14 in — Apr 26, 1937
May 100.0°F — May 9, 1895 16.0°F — May 7, 2020 4.10 in — May 31, 1971
June 99.0°F — Jun 1, 1895 46.9°F — Jun 1, 1938 3.52 in — Jun 17, 2011
July 102.9°F — Jul 21, 1930 53.1°F — Jul 1, 1919 11.85 in — Jul 23, 1969
August 104.0°F — Aug 7, 1918 48.9°F — Aug 25, 1927 6.81 in — Aug 28, 2011
September 99.0°F — Sep 6, 1899 43.0°F — Sep 22, 1904 7.40 in — Sep 6, 1935
October 95.0°F — Oct 5, 1941 30.0°F — Oct 30, 1907 6.26 in — Oct 1, 2010
November 82.0°F — Nov 4, 2003 12.9°F — Nov 30, 1929 5.70 in — Nov 12, 2020
December 75.0°F — Dec 1, 2006 -0.9°F — Dec 30, 1917 3.44 in — Dec 31, 1969

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