All-time weather records — Rising Sun, MD

Record high
104.0°F
August 9, 2001
Record low
-18.9°F
January 22, 1984
Wettest day
6.82 in
September 17, 1999

Climate change signal in Rising Sun

17.2%

of Rising Sun's all-time daily heat records were set in the last decade (63 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 #
1970s
6
12
1980s
86
99
1990s
123
171
2000s
72
54
2010s
46
23
2020s
33
7

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 1978, the latest in 2025. Period of observation: 1978-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 72.0°F — Jan 29, 2002 -18.9°F — Jan 22, 1984 3.13 in — Jan 9, 2024
February 78.1°F — Feb 21, 2018 -17.0°F — Feb 5, 1996 2.70 in — Feb 17, 2003
March 91.0°F — Mar 30, 1998 -4.0°F — Mar 10, 1984 3.95 in — Mar 22, 2000
April 95.0°F — Apr 17, 2002 -2.9°F — Apr 12, 1993 4.92 in — Apr 30, 2014
May 95.0°F — May 8, 2000 10.0°F — May 1, 1992 2.50 in — May 30, 1990
June 99.0°F — Jun 15, 1994 34.0°F — Jun 4, 1993 3.80 in — Jun 15, 2004
July 102.9°F — Jul 15, 1995 42.1°F — Jul 8, 2000 3.52 in — Jul 3, 1978
August 104.0°F — Aug 9, 2001 36.0°F — Aug 29, 1982 5.05 in — Aug 4, 2020
September 97.0°F — Sep 3, 1993 16.0°F — Sep 30, 1992 6.82 in — Sep 17, 1999
October 91.9°F — Oct 2, 2019 12.0°F — Oct 17, 1992 5.24 in — Oct 8, 2005
November 81.0°F — Nov 6, 2024 10.9°F — Nov 18, 1997 3.16 in — Nov 9, 1996
December 75.0°F — Dec 7, 1998 -4.0°F — Dec 27, 1989 3.49 in — Dec 13, 1983

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