Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. 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 2021

View Period (Months):
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  • Record Coolest
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  • Bottom 1/3
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  • Top 1/3
  • Top 1/10
  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
July 2021
1-Month
79.8°F
(26.6°C)
74.7°F
(23.7°C)
5.1°F
(2.9°C)
128th Coolest
Coolest since:
1987
1st Warmest
Warmest to Date
2021
Jun–Jul 2021
2-Month
77.4°F
(25.2°C)
71.5°F
(21.9°C)
5.9°F
(3.3°C)
128th Coolest
Coolest since:
1944
1st Warmest
Warmest to Date
2021
May–Jul 2021
3-Month
73.1°F
(22.8°C)
67.9°F
(19.9°C)
5.2°F
(2.9°C)
128th Coolest
Coolest since:
1953, 1998
1st Warmest
Warmest to Date
2021
Apr–Jul 2021
4-Month
69.4°F
(20.8°C)
64.5°F
(18.1°C)
4.9°F
(2.7°C)
128th Coolest
Coolest since:
1944
1st Warmest
Warmest to Date
2021
Mar–Jul 2021
5-Month
65.1°F
(18.4°C)
61.3°F
(16.3°C)
3.8°F
(2.1°C)
126th Coolest
Coolest since:
1912
3rd Warmest
Warmest since:
2013, 2014
Feb–Jul 2021
6-Month
62.2°F
(16.8°C)
58.7°F
(14.8°C)
3.5°F
(2.0°C)
125th Coolest
Coolest since:
1948
4th Warmest
Warmest since:
2015
Jan–Jul 2021
7-Month
59.8°F
(15.4°C)
56.3°F
(13.5°C)
3.5°F
(1.9°C)
125th Coolest
Coolest since:
1955
4th Warmest
Warmest since:
2014
Dec 2020–Jul 2021
8-Month
58.0°F
(14.4°C)
54.7°F
(12.6°C)
3.3°F
(1.8°C)
125th Coolest
Coolest since:
1917
3rd Warmest
Warmest since:
2015
Nov 2020–Jul 2021
9-Month
57.2°F
(14.0°C)
54.1°F
(12.3°C)
3.1°F
(1.7°C)
123rd Coolest
Coolest since:
1917
5th Warmest
Warmest since:
2015
Oct 2020–Jul 2021
10-Month
58.1°F
(14.5°C)
54.6°F
(12.6°C)
3.5°F
(1.9°C)
126th Coolest
Coolest since:
1917
2nd Warmest
Warmest since:
2015
Ties: 2014
Sep 2020–Jul 2021
11-Month
59.5°F
(15.3°C)
55.8°F
(13.2°C)
3.7°F
(2.1°C)
126th Coolest
Coolest since:
1917
2nd Warmest
Warmest since:
2015
Aug 2020–Jul 2021
12-Month
61.2°F
(16.2°C)
57.4°F
(14.1°C)
3.8°F
(2.1°C)
126th Coolest
Coolest since:
1917
2nd Warmest
Warmest since:
2015
Feb 2020–Jul 2021
18-Month
61.1°F
(16.2°C)
57.8°F
(14.3°C)
3.3°F
(1.9°C)
126th Coolest
Coolest since:
1913, 1949
2nd Warmest
Warmest since:
2015
Ties: 2016
Aug 2019–Jul 2021
24-Month
60.3°F
(15.7°C)
57.4°F
(14.1°C)
2.9°F
(1.6°C)
123rd Coolest
Coolest since:
1913
4th Warmest
Warmest since:
2015
Ties: 2014
Aug 2018–Jul 2021
36-Month
59.8°F
(15.4°C)
57.4°F
(14.1°C)
2.4°F
(1.3°C)
120th Coolest
Coolest since:
1913
6th Warmest
Warmest since:
2015, 2016
Ties: 2014
Aug 2017–Jul 2021
48-Month
59.9°F
(15.5°C)
57.3°F
(14.1°C)
2.6°F
(1.4°C)
120th Coolest
Coolest since:
1913
5th Warmest
Warmest since:
2016
Aug 2016–Jul 2021
60-Month
59.9°F
(15.5°C)
57.4°F
(14.1°C)
2.5°F
(1.4°C)
118th Coolest
Coolest since:
1913
6th Warmest
Warmest since:
2017, 2018

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