All-time weather records — Grand Blanc, MI

Record high
98.1°F
June 29, 2012
Record low
-23.1°F
February 20, 2015
Wettest day
5.51 in
July 28, 2011

Climate change signal in Grand Blanc

46.2%

of Grand Blanc's all-time daily heat records were set in the last decade (169 of 366 records since 2015).

32.5%

of all-time daily cold records were set in the last decade (119 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 #
2000s
110
157
2010s
174
151
2020s
82
58

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 2004, the latest in 2026. Period of observation: 2004-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 66.9°F — Jan 8, 2008 -22.0°F — Jan 24, 2026 1.44 in — Jan 11, 2020
February 72.0°F — Feb 28, 2024 -23.1°F — Feb 20, 2015 1.68 in — Feb 21, 2018
March 87.1°F — Mar 22, 2012 -15.0°F — Mar 1, 2014 1.16 in — Mar 23, 2011
April 84.9°F — Apr 16, 2023 10.9°F — Apr 6, 2007 1.77 in — Apr 26, 2009
May 93.9°F — May 30, 2006 27.0°F — May 1, 2008 3.52 in — May 4, 2012
June 98.1°F — Jun 29, 2012 37.9°F — Jun 1, 2025 4.21 in — Jun 28, 2013
July 98.1°F — Jul 5, 2012 42.1°F — Jul 2, 2007 5.51 in — Jul 28, 2011
August 97.0°F — Aug 2, 2006 42.1°F — Aug 31, 2009 4.65 in — Aug 9, 2009
September 95.0°F — Sep 24, 2017 32.0°F — Sep 29, 2006 3.26 in — Sep 23, 2005
October 91.9°F — Oct 6, 2007 21.9°F — Oct 18, 2009 1.49 in — Oct 2, 2019
November 78.1°F — Nov 4, 2015 3.9°F — Nov 21, 2014 1.12 in — Nov 9, 2005
December 63.0°F — Dec 17, 2021 -16.1°F — Dec 28, 2017 1.19 in — Dec 29, 2025

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