All-time weather records — Hillsboro, MD

Record high
102.0°F
July 6, 2010
Record low
-6.0°F
January 18, 1982
Wettest day
8.90 in
November 2, 1956

Climate change signal in Hillsboro

10.7%

of Hillsboro's all-time daily heat records were set in the last decade (39 of 366 records since 2015).

7.1%

of all-time daily cold records were set in the last decade (26 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 #
1940s
12
4
1950s
86
55
1960s
40
77
1970s
29
61
1980s
31
61
1990s
49
35
2000s
56
31
2010s
46
35
2020s
17
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 1948, the latest in 2024. Period of observation: 1948-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 77.0°F — Jan 25, 1950 -6.0°F — Jan 18, 1982 2.68 in — Jan 28, 1998
February 77.0°F — Feb 21, 2018 -2.9°F — Feb 14, 1979 2.60 in — Feb 2, 1973
March 87.1°F — Mar 30, 1998 10.0°F — Mar 7, 2015 3.61 in — Mar 26, 1978
April 93.0°F — Apr 27, 1990 23.0°F — Apr 7, 1982 3.60 in — Apr 22, 2006
May 97.0°F — May 31, 2011 35.1°F — May 4, 1957 4.11 in — May 24, 1979
June 100.9°F — Jun 29, 1959 43.0°F — Jun 9, 1997 5.61 in — Jun 25, 2006
July 102.0°F — Jul 6, 2010 51.1°F — Jul 28, 1977 6.05 in — Jul 10, 2010
August 100.9°F — Aug 8, 2007 45.0°F — Aug 29, 1986 7.12 in — Aug 8, 1959
September 97.0°F — Sep 2, 1980 37.0°F — Sep 24, 1963 7.90 in — Sep 16, 1999
October 95.0°F — Oct 2, 2019 25.0°F — Oct 24, 1969 5.43 in — Oct 29, 2012
November 84.0°F — Nov 1, 1950 16.0°F — Nov 29, 1955 8.90 in — Nov 2, 1956
December 75.9°F — Dec 6, 1998 3.9°F — Dec 25, 1983 2.69 in — Dec 18, 2023

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