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 1910

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2023)		Warmest/Coolest
Since		Record
January 1910
1-Month		38.8°F
(3.8°C)		42.3°F
(5.7°C)		-3.5°F
(-1.9°C)		11th Coolest
Coolest since:
1937
119th Warmest
Warmest since:
2014
Ties: 1913, 1952
Dec 1909–Jan 1910
2-Month		39.4°F
(4.1°C)		42.7°F
(5.9°C)		-3.3°F
(-1.8°C)		6th Coolest
Coolest to Date
1949
123rd Warmest
Warmest since:
2018
Ties: 1950
Nov 1909–Jan 1910
3-Month		42.3°F
(5.7°C)		45.0°F
(7.2°C)		-2.7°F
(-1.5°C)		8th Coolest
Coolest to Date
1949
121st Warmest
Warmest since:
2018
Oct 1909–Jan 1910
4-Month		46.3°F
(7.9°C)		48.6°F
(9.2°C)		-2.3°F
(-1.3°C)		8th Coolest
Coolest since:
1917
121st Warmest
Warmest since:
2015
Sep 1909–Jan 1910
5-Month		50.5°F
(10.3°C)		52.6°F
(11.4°C)		-2.1°F
(-1.1°C)		9th Coolest
Coolest since:
1917
120th Warmest
Warmest since:
2015
Aug 1909–Jan 1910
6-Month		54.3°F
(12.4°C)		56.1°F
(13.4°C)		-1.8°F
(-1.0°C)		6th Coolest
Coolest since:
1917
123rd Warmest
Warmest since:
2021
Ties: 1898
Jul 1909–Jan 1910
7-Month		56.8°F
(13.8°C)		58.8°F
(14.9°C)		-2.0°F
(-1.1°C)		4th Coolest
Coolest to Date
1917
125th Warmest
Warmest since:
2015, 2018
Jun 1909–Jan 1910
8-Month		58.3°F
(14.6°C)		60.0°F
(15.6°C)		-1.7°F
(-1.0°C)		4th Coolest
Coolest to Date
1917
125th Warmest
Warmest since:
2018
Ties: 1912, 1921
May 1909–Jan 1910
9-Month		58.3°F
(14.6°C)		60.0°F
(15.6°C)		-1.7°F
(-1.0°C)		5th Coolest
Coolest to Date
1917
124th Warmest
Warmest since:
2015
Apr 1909–Jan 1910
10-Month		57.9°F
(14.4°C)		59.4°F
(15.2°C)		-1.5°F
(-0.8°C)		5th Coolest
Coolest to Date
1917
124th Warmest
Warmest since:
2015
Ties: 1921, 1972
Mar 1909–Jan 1910
11-Month		56.8°F
(13.8°C)		58.5°F
(14.7°C)		-1.7°F
(-0.9°C)		4th Coolest
Coolest to Date
1949
125th Warmest
Warmest since:
2015
Ties: 1912, 1921
Feb 1909–Jan 1910
12-Month		55.7°F
(13.2°C)		57.4°F
(14.1°C)		-1.7°F
(-0.9°C)		5th Coolest
Coolest to Date
1949
124th Warmest
Warmest since:
2015
Aug 1908–Jan 1910
18-Month		55.6°F
(13.1°C)		56.9°F
(13.8°C)		-1.3°F
(-0.7°C)		6th Coolest
Coolest to Date
1913
122nd Warmest
Warmest since:
2016, 2022
Ties: 1918
Feb 1908–Jan 1910
24-Month		56.0°F
(13.3°C)		57.4°F
(14.1°C)		-1.4°F
(-0.8°C)		3rd Coolest
Coolest to Date
1913
125th Warmest
Warmest since:
2016
Ties: 1914, 1917
Feb 1907–Jan 1910
36-Month		56.3°F
(13.5°C)		57.4°F
(14.1°C)		-1.1°F
(-0.6°C)		3rd Coolest
Coolest to Date
1914
124th Warmest
Warmest since:
2016, 2017
Feb 1906–Jan 1910
48-Month		56.4°F
(13.6°C)		57.4°F
(14.1°C)		-1.0°F
(-0.5°C)		3rd Coolest
Coolest to Date
1913
123rd Warmest
Warmest since:
2018
Ties: 1912, 1914, 1916, 1923, 1924, 1950
Feb 1905–Jan 1910
60-Month		56.5°F
(13.6°C)		57.3°F
(14.1°C)		-0.8°F
(-0.5°C)		7th Coolest
Coolest to Date
1913
118th Warmest
Warmest since:
2018, 2019
Ties: 1912, 1915, 1920, 1923, 1949

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