Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

California River Basin

Average Temperature Rankings, July 2015

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Warmest/Coolest
Since		 Record
July 2015
1-Month 		75.0°F
(23.9°C)		 74.7°F
(23.7°C)		 0.3°F
(0.2°C)		 63rd Coolest
Coolest since:
 1987
66th Warmest
Warmest since:
 2021
Ties: 1910
Jun–Jul 2015
2-Month 		74.7°F
(23.7°C)		 71.5°F
(21.9°C)		 3.2°F
(1.8°C)		 117th Coolest
Coolest since:
 1944
12th Warmest
Warmest since:
 2021
May–Jul 2015
3-Month 		70.1°F
(21.2°C)		 67.9°F
(19.9°C)		 2.2°F
(1.3°C)		 109th Coolest
Coolest since:
 1953, 1998
20th Warmest
Warmest since:
 2021
Ties: 1926, 1960, 1973
Apr–Jul 2015
4-Month 		66.7°F
(19.3°C)		 64.4°F
(18.0°C)		 2.3°F
(1.3°C)		 109th Coolest
Coolest since:
 1944
20th Warmest
Warmest since:
 2021
Mar–Jul 2015
5-Month 		64.8°F
(18.2°C)		 61.3°F
(16.3°C)		 3.5°F
(1.9°C)		 125th Coolest
Coolest since:
 1912
4th Warmest
Warmest since:
 2013, 2014
Ties: 2004, 2017
Feb–Jul 2015
6-Month 		62.8°F
(17.1°C)		 58.7°F
(14.8°C)		 4.1°F
(2.3°C)		 128th Coolest
Coolest since:
 1948
1st Warmest
Warmest to Date
 2015
Jan–Jul 2015
7-Month 		60.8°F
(16.0°C)		 56.3°F
(13.5°C)		 4.5°F
(2.5°C)		 127th Coolest
Coolest since:
 1955
2nd Warmest
Warmest since:
 2014
Dec 2014–Jul 2015
8-Month 		59.1°F
(15.1°C)		 54.7°F
(12.6°C)		 4.4°F
(2.5°C)		 127th Coolest
Coolest since:
 1917
1st Warmest
Warmest to Date
 2015
Nov 2014–Jul 2015
9-Month 		58.4°F
(14.7°C)		 54.1°F
(12.3°C)		 4.3°F
(2.4°C)		 127th Coolest
Coolest since:
 1917
1st Warmest
Warmest to Date
 2015
Oct 2014–Jul 2015
10-Month 		59.0°F
(15.0°C)		 54.6°F
(12.6°C)		 4.4°F
(2.4°C)		 127th Coolest
Coolest since:
 1917
1st Warmest
Warmest to Date
 2015
Sep 2014–Jul 2015
11-Month 		60.2°F
(15.7°C)		 55.9°F
(13.3°C)		 4.3°F
(2.4°C)		 127th Coolest
Coolest since:
 1917
1st Warmest
Warmest to Date
 2015
Aug 2014–Jul 2015
12-Month 		61.4°F
(16.3°C)		 57.4°F
(14.1°C)		 4.0°F
(2.2°C)		 127th Coolest
Coolest since:
 1917
1st Warmest
Warmest to Date
 2015
Feb 2014–Jul 2015
18-Month 		61.8°F
(16.6°C)		 57.8°F
(14.3°C)		 4.0°F
(2.3°C)		 127th Coolest
Coolest since:
 1913, 1949
1st Warmest
Warmest to Date
 2015
Aug 2013–Jul 2015
24-Month 		60.9°F
(16.1°C)		 57.4°F
(14.1°C)		 3.5°F
(2.0°C)		 126th Coolest
Coolest since:
 1913
1st Warmest
Warmest to Date
 2015
Aug 2012–Jul 2015
36-Month 		60.7°F
(15.9°C)		 57.4°F
(14.1°C)		 3.3°F
(1.8°C)		 125th Coolest
Coolest since:
 1913
1st Warmest
Warmest to Date
 2015, 2016
Ties: 2016
Aug 2011–Jul 2015
48-Month 		60.2°F
(15.7°C)		 57.4°F
(14.1°C)		 2.8°F
(1.6°C)		 121st Coolest
Coolest since:
 1913
4th Warmest
Warmest to Date
 2016, 2018
Aug 2010–Jul 2015
60-Month 		59.6°F
(15.3°C)		 57.3°F
(14.1°C)		 2.3°F
(1.2°C)		 116th Coolest
Coolest since:
 1913
8th Warmest
Warmest to Date
 2017, 2018

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