All-time weather records — Grantsville, MD

Record high
91.9°F
June 30, 2012
Record low
-20.9°F
February 25, 2015
Wettest day
4.73 in
September 7, 1996

Climate change signal in Grantsville

30.9%

of Grantsville's all-time daily heat records were set in the last decade (113 of 366 records since 2015).

17.5%

of all-time daily cold records were set in the last decade (64 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 #
1960s
·
·
1970s
·
·
1980s
·
·
1990s
·
·
2000s
164
186
2010s
202
180

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 2001, the latest in 2019. Period of observation: 1963-2019.

Records by month

Month Hottest day Coldest day Wettest day
January 68.0°F — Jan 9, 2008 -17.0°F — Jan 17, 2009 1.83 in — Jan 12, 2005
February 75.0°F — Feb 21, 2018 -20.9°F — Feb 25, 2015 2.20 in — Feb 6, 2010
March 78.1°F — Mar 23, 2012 -9.0°F — Mar 1, 2014 3.10 in — Mar 22, 1983
April 86.0°F — Apr 28, 2009 12.9°F — Apr 4, 2013 1.85 in — Apr 21, 1964
May 89.1°F — May 31, 2006 21.0°F — May 4, 2002 3.36 in — May 31, 1980
June 91.9°F — Jun 30, 2012 30.9°F — Jun 2, 2003 2.85 in — Jun 11, 2018
July 91.9°F — Jul 8, 2012 39.0°F — Jul 1, 2010 3.18 in — Jul 6, 1966
August 90.0°F — Aug 14, 2005 39.9°F — Aug 16, 2014 3.53 in — Aug 9, 2013
September 90.0°F — Sep 4, 2011 30.0°F — Sep 25, 2012 4.73 in — Sep 7, 1996
October 86.0°F — Oct 4, 2019 18.0°F — Oct 24, 2008 2.66 in — Oct 30, 2012
November 78.1°F — Nov 5, 2003 3.9°F — Nov 24, 2008 3.16 in — Nov 5, 1985
December 72.0°F — Dec 6, 2001 -7.1°F — Dec 14, 2005 3.37 in — Dec 2, 1974

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