Past Maps: [ 00Z 01Z 02Z 03Z 04Z 05Z 06Z 07Z 08Z 09Z 10Z 11Z 12Z 13Z 14Z 15Z 16Z 17Z 18Z 19Z 20Z 21Z 22Z 23Z ]
Temperature
Mean: 77.1 F
Highest U.S. Mean Temp
07/16/2006-21Z 93.3 F
07/16/2006-22Z 93.1 F
07/16/2006-20Z 92.8 F
07/16/2006-23Z 92.4 F
07/15/2006-21Z 92.4 F
07/15/2006-22Z 92.1 F
07/15/2006-20Z 92.1 F
06/28/2012-21Z 92.1 F
06/28/2012-22Z 92.0 F
07/17/2006-21Z 91.9 F
Lowest U.S. Mean Temp
01/01/2018-10Z 9.4 F
01/22/2025-09Z 9.3 F
01/21/2025-09Z 9.2 F
01/21/2025-10Z 9.0 F
01/21/2025-11Z 8.9 F
01/01/2018-11Z 8.9 F
01/21/2025-13Z 8.8 F
01/21/2025-12Z 8.7 F
01/01/2018-12Z 8.5 F
01/01/2018-13Z 8.2 F
Minimum: 47.8 F at Ely MN (ELO)
Maximum: 100.9 F at Thermal CA (TRM)
% Land Area > 100F: 0.0 %
% Land Area > 90F: 4.5 %
% Land Area < 32F: 0.0 %
% Land Area < 0F: 0.0 %
% Population < 32F: 0.0 %
Dewpoint
Mean: 61.9 F
Highest U.S. Mean Dewpoint
07/18/2026-15Z 65.3 F
07/18/2026-14Z 65.1 F
07/18/2026-16Z 65.0 F
07/19/2002-15Z 64.7 F
07/18/2026-17Z 64.6 F
08/01/2011-14Z 64.5 F
07/19/2002-16Z 64.5 F
07/18/2026-13Z 64.5 F
08/01/2011-15Z 64.4 F
07/19/2002-14Z 64.4 F
Lowest U.S. Mean Dewpoint
01/21/2025-13Z -1.9 F
01/21/2025-05Z -1.9 F
01/21/2025-07Z -2.0 F
01/21/2025-06Z -2.0 F
01/22/2025-09Z -2.1 F
01/21/2025-08Z -2.1 F
01/21/2025-12Z -2.2 F
01/21/2025-10Z -2.2 F
01/21/2025-09Z -2.2 F
01/21/2025-11Z -2.3 F
Minimum: 28.9 F at Santa Rosa CA (STS)
Maximum: 82.4 F at Morgan City LA (PTN)
% Land Area > 70F: 25.1 %
% Land Area > 60F: 51.3 %
% Land Area > 50F: 92.0 %
Pressure
Mean: 1012.5 mb
Highest U.S. Mean Pressure:
01/01/2018-15Z 1036.7 mb
01/16/2005-03Z 1036.7 mb
01/16/2005-04Z 1036.7 mb
01/01/2018-17Z 1036.8 mb
01/16/2005-05Z 1036.8 mb
01/15/2005-18Z 1036.9 mb
01/01/2018-16Z 1037.0 mb
01/15/2005-15Z 1037.1 mb
01/15/2005-16Z 1037.4 mb
01/15/2005-17Z 1037.4 mb
Lowest U.S. Mean Pressure:
01/21/2017-11Z 1000.9 mb
10/25/2010-22Z 1000.7 mb
03/10/2006-02Z 1000.7 mb
01/21/2017-20Z 1000.7 mb
03/09/2006-20Z 1000.4 mb
03/10/2006-01Z 1000.3 mb
03/10/2006-00Z 1000.0 mb
03/09/2006-21Z 999.8 mb
03/09/2006-22Z 999.7 mb
03/09/2006-23Z 999.6 mb
Minimum: 1000.0 mb at Dayton OH (MGY)
Maximum: 1020.5 mb at Devil's Lake ND (DVL)
Wind
Mean: 7.2 mph
Highest U.S. Mean Wind
03/06/2017-21Z 18.0 mph
03/06/2017-20Z 17.9 mph
03/06/2017-19Z 17.9 mph
03/06/2017-22Z 17.4 mph
03/06/2017-18Z 17.4 mph
04/15/2008-22Z 17.2 mph
04/15/2008-21Z 17.2 mph
03/15/2026-21Z 17.2 mph
03/15/2026-20Z 17.2 mph
04/12/2018-22Z 17.1 mph
Maximum: 33.3 mph at Winnemucca NV (WMC)
Maximum Gust: 60.9 mph at Salt Lake City UT (SLC)
Heat Index
Maximum: 111.2 F at Ft Smith AR (FSM)
Wind Chill
Minimum: 21.9 F at Ely MN (ELO)
Past Maps: [ 00Z 01Z 02Z 03Z 04Z 05Z 06Z 07Z 08Z 09Z 10Z 11Z 12Z 13Z 14Z 15Z 16Z 17Z 18Z 19Z 20Z 21Z 22Z 23Z ]
