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, January 1921

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2023)
Warmest/Coolest
Since
Record
January 1921
1-Month
41.2°F
(5.1°C)
42.3°F
(5.7°C)
-1.1°F
(-0.6°C)
30th Coolest
Coolest since:
1937
100th Warmest
Warmest since:
2014
Ties: 2008
Dec 1920–Jan 1921
2-Month
41.6°F
(5.3°C)
42.7°F
(5.9°C)
-1.1°F
(-0.6°C)
30th Coolest
Coolest since:
1949
99th Warmest
Warmest since:
2018
Ties: 1907, 1962
Nov 1920–Jan 1921
3-Month
43.7°F
(6.5°C)
45.0°F
(7.2°C)
-1.3°F
(-0.7°C)
21st Coolest
Coolest since:
1949
108th Warmest
Warmest since:
2018
Ties: 1955, 1993
Oct 1920–Jan 1921
4-Month
46.4°F
(8.0°C)
48.6°F
(9.2°C)
-2.2°F
(-1.2°C)
9th Coolest
Coolest since:
1917
120th Warmest
Warmest since:
2015
Ties: 1937
Sep 1920–Jan 1921
5-Month
50.4°F
(10.2°C)
52.6°F
(11.4°C)
-2.2°F
(-1.2°C)
8th Coolest
Coolest since:
1917
121st Warmest
Warmest since:
2015
Aug 1920–Jan 1921
6-Month
54.4°F
(12.4°C)
56.1°F
(13.4°C)
-1.7°F
(-1.0°C)
8th Coolest
Coolest since:
1917
121st Warmest
Warmest since:
2021
Ties: 1932
Jul 1920–Jan 1921
7-Month
57.0°F
(13.9°C)
58.8°F
(14.9°C)
-1.8°F
(-1.0°C)
5th Coolest
Coolest since:
1917
124th Warmest
Warmest since:
2015, 2018
Jun 1920–Jan 1921
8-Month
58.3°F
(14.6°C)
60.0°F
(15.6°C)
-1.7°F
(-1.0°C)
4th Coolest
Coolest since:
1917
125th Warmest
Warmest since:
2018
Ties: 1910, 1912
May 1920–Jan 1921
9-Month
58.5°F
(14.7°C)
60.0°F
(15.6°C)
-1.5°F
(-0.9°C)
6th Coolest
Coolest since:
1917
123rd Warmest
Warmest since:
2015
Ties: 1972
Apr 1920–Jan 1921
10-Month
57.9°F
(14.4°C)
59.4°F
(15.2°C)
-1.5°F
(-0.8°C)
5th Coolest
Coolest since:
1917
124th Warmest
Warmest since:
2015
Ties: 1910, 1972
Mar 1920–Jan 1921
11-Month
56.8°F
(13.8°C)
58.5°F
(14.7°C)
-1.7°F
(-0.9°C)
4th Coolest
Coolest since:
1949
125th Warmest
Warmest since:
2015
Ties: 1910, 1912
Feb 1920–Jan 1921
12-Month
55.8°F
(13.2°C)
57.4°F
(14.1°C)
-1.6°F
(-0.9°C)
6th Coolest
Coolest since:
1949
123rd Warmest
Warmest since:
2015
Aug 1919–Jan 1921
18-Month
55.5°F
(13.1°C)
56.9°F
(13.8°C)
-1.4°F
(-0.7°C)
4th Coolest
Coolest since:
1913
124th Warmest
Warmest since:
2016, 2022
Ties: 1950
Feb 1919–Jan 1921
24-Month
56.1°F
(13.4°C)
57.4°F
(14.1°C)
-1.3°F
(-0.7°C)
6th Coolest
Coolest since:
1913
122nd Warmest
Warmest since:
2016
Feb 1918–Jan 1921
36-Month
56.4°F
(13.6°C)
57.4°F
(14.1°C)
-1.0°F
(-0.5°C)
4th Coolest
Coolest since:
1914
123rd Warmest
Warmest since:
2016, 2017
Ties: 1912, 1915, 1917, 1918, 1922, 1923, 1949, 1950
Feb 1917–Jan 1921
48-Month
56.6°F
(13.7°C)
57.4°F
(14.1°C)
-0.8°F
(-0.4°C)
15th Coolest
Coolest since:
1913
111th Warmest
Warmest since:
2018
Ties: 1918
Feb 1916–Jan 1921
60-Month
56.3°F
(13.5°C)
57.3°F
(14.1°C)
-1.0°F
(-0.6°C)
5th Coolest
Coolest since:
1913
120th Warmest
Warmest since:
2018, 2019

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