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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