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 1918

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2023)		Warmest/Coolest
Since		Record
January 1918
1-Month		42.9°F
(6.1°C)		42.3°F
(5.7°C)		0.6°F
(0.4°C)		66th Coolest
Coolest since:
1937
64th Warmest
Warmest since:
2014
Ties: 1925
Dec 1917–Jan 1918
2-Month		44.7°F
(7.1°C)		42.7°F
(5.9°C)		2.0°F
(1.2°C)		103rd Coolest
Coolest since:
1949
26th Warmest
Warmest to Date
2018
Ties: 1953, 2012
Nov 1917–Jan 1918
3-Month		46.8°F
(8.2°C)		45.0°F
(7.2°C)		1.8°F
(1.0°C)		107th Coolest
Coolest since:
1949
22nd Warmest
Warmest since:
2018
Ties: 1905
Oct 1917–Jan 1918
4-Month		50.8°F
(10.4°C)		48.6°F
(9.2°C)		2.2°F
(1.2°C)		113th Coolest
Coolest since:
1917
16th Warmest
Warmest to Date
2015
Ties: 1938, 1992, 2006, 2022
Sep 1917–Jan 1918
5-Month		54.4°F
(12.4°C)		52.6°F
(11.4°C)		1.8°F
(1.0°C)		108th Coolest
Coolest since:
1917
21st Warmest
Warmest to Date
2015
Ties: 1984
Aug 1917–Jan 1918
6-Month		57.7°F
(14.3°C)		56.1°F
(13.4°C)		1.6°F
(0.9°C)		104th Coolest
Coolest since:
1917
25th Warmest
Warmest to Date
2021
Ties: 1984, 2012
Jul 1917–Jan 1918
7-Month		60.5°F
(15.8°C)		58.8°F
(14.9°C)		1.7°F
(0.9°C)		111th Coolest
Coolest since:
1917
18th Warmest
Warmest to Date
2015, 2018
Ties: 1934, 1940, 1951, 1981, 1997
Jun 1917–Jan 1918
8-Month		61.6°F
(16.4°C)		60.0°F
(15.6°C)		1.6°F
(0.8°C)		110th Coolest
Coolest since:
1917
19th Warmest
Warmest to Date
2018
Ties: 1938, 2002
May 1917–Jan 1918
9-Month		60.9°F
(16.1°C)		60.0°F
(15.6°C)		0.9°F
(0.5°C)		91st Coolest
Coolest since:
1917
38th Warmest
Warmest to Date
2015
Ties: 1989, 1992, 2005
Apr 1917–Jan 1918
10-Month		59.9°F
(15.5°C)		59.4°F
(15.2°C)		0.5°F
(0.3°C)		78th Coolest
Coolest since:
1917
51st Warmest
Warmest since:
2015
Ties: 1934, 1963, 1975, 1994
Mar 1917–Jan 1918
11-Month		58.4°F
(14.7°C)		58.5°F
(14.7°C)		-0.1°F
(0.0°C)		55th Coolest
Coolest since:
1949
74th Warmest
Warmest since:
2015
Ties: 1929, 1939, 1943, 1958, 1969
Feb 1917–Jan 1918
12-Month		57.2°F
(14.0°C)		57.4°F
(14.1°C)		-0.2°F
(-0.1°C)		46th Coolest
Coolest since:
1949
83rd Warmest
Warmest since:
2015
Ties: 1897, 1899, 1901, 1902, 1955, 1977, 1979
Aug 1916–Jan 1918
18-Month		55.6°F
(13.1°C)		56.9°F
(13.8°C)		-1.3°F
(-0.7°C)		6th Coolest
Coolest since:
1913
122nd Warmest
Warmest since:
2016, 2022
Ties: 1910
Feb 1916–Jan 1918
24-Month		56.3°F
(13.5°C)		57.4°F
(14.1°C)		-1.1°F
(-0.6°C)		8th Coolest
Coolest since:
1913
120th Warmest
Warmest since:
2016
Ties: 1949
Feb 1915–Jan 1918
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, 1921, 1922, 1923, 1949, 1950
Feb 1914–Jan 1918
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: 1921
Feb 1913–Jan 1918
60-Month		56.6°F
(13.7°C)		57.3°F
(14.1°C)		-0.7°F
(-0.4°C)		13th Coolest
Coolest since:
1913
112th Warmest
Warmest since:
2018, 2019
Ties: 1919, 1922, 1925, 1950

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