All-time weather records — Mertzon, TX

Record high
111.0°F
June 20, 2023
Record low
-4.0°F
February 15, 2021
Wettest day
5.50 in
February 15, 2021

Climate change signal in Mertzon

64.2%

of Mertzon's all-time daily heat records were set in the last decade (235 of 366 records since 2015).

53%

of all-time daily cold records were set in the last decade (194 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
38
55
2010s
186
230
2020s
142
81

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 2008, the latest in 2023. Period of observation: 2008-2024.

Records by month

Month Hottest day Coldest day Wettest day
January 84.9°F — Jan 23, 2009 6.1°F — Jan 17, 2018 0.80 in — Jan 26, 2012
February 93.0°F — Feb 25, 2009 -4.0°F — Feb 15, 2021 5.50 in — Feb 15, 2021
March 100.0°F — Mar 26, 2018 -0.9°F — Mar 6, 2015 1.66 in — Mar 18, 2015
April 104.0°F — Apr 13, 2018 23.0°F — Apr 8, 2009 2.17 in — Apr 16, 2010
May 108.0°F — May 29, 2011 32.0°F — May 3, 2013 2.69 in — May 18, 2019
June 111.0°F — Jun 20, 2023 48.0°F — Jun 30, 2015 2.01 in — Jun 17, 2015
July 109.0°F — Jul 13, 2023 41.0°F — Jul 10, 2015 2.00 in — Jul 7, 2019
August 109.9°F — Aug 10, 2023 50.0°F — Aug 10, 2015 2.35 in — Aug 18, 2021
September 106.0°F — Sep 9, 2023 37.9°F — Sep 29, 2020 3.08 in — Sep 29, 2012
October 100.0°F — Oct 12, 2020 19.9°F — Oct 31, 2019 2.13 in — Oct 9, 2011
November 91.9°F — Nov 8, 2023 17.1°F — Nov 23, 2015 1.71 in — Nov 5, 2014
December 90.0°F — Dec 27, 2021 9.0°F — Dec 23, 2022 1.05 in — Dec 8, 2019

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