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, October 1955

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Warmest/Coolest
Since		Record
October 1955
1-Month		61.0°F
(16.1°C)		59.5°F
(15.3°C)		1.5°F
(0.8°C)		94th Coolest
Coolest since:
1916
35th Warmest
Warmest since:
2020
Ties: 1944, 1945, 1963
Sep–Oct 1955
2-Month		65.2°F
(18.4°C)		64.0°F
(17.8°C)		1.2°F
(0.6°C)		93rd Coolest
Coolest since:
1916, 1920
36th Warmest
Warmest since:
2020
Ties: 1978, 2002, 2021
Aug–Oct 1955
3-Month		68.4°F
(20.2°C)		67.3°F
(19.6°C)		1.1°F
(0.6°C)		99th Coolest
Coolest since:
1900
30th Warmest
Warmest since:
2020
Ties: 1966, 1979
Jul–Oct 1955
4-Month		69.2°F
(20.7°C)		69.1°F
(20.6°C)		0.1°F
(0.1°C)		56th Coolest
Coolest since:
1912
73rd Warmest
Warmest since:
2020
Ties: 1943, 1962, 1963
Jun–Oct 1955
5-Month		68.8°F
(20.4°C)		68.9°F
(20.5°C)		-0.1°F
(-0.1°C)		45th Coolest
Coolest since:
1912
84th Warmest
Warmest since:
2020
Ties: 1957, 1972, 1980, 1989, 1993
May–Oct 1955
6-Month		67.3°F
(19.6°C)		67.6°F
(19.8°C)		-0.3°F
(-0.2°C)		42nd Coolest
Coolest since:
1916
87th Warmest
Warmest since:
2020
Ties: 1897, 1942, 1964, 1976
Apr–Oct 1955
7-Month		64.7°F
(18.2°C)		65.6°F
(18.7°C)		-0.9°F
(-0.5°C)		21st Coolest
Coolest since:
1912
108th Warmest
Warmest since:
2020
Ties: 1903, 1925, 1930, 1963, 1982
Mar–Oct 1955
8-Month		62.7°F
(17.1°C)		63.5°F
(17.5°C)		-0.8°F
(-0.4°C)		22nd Coolest
Coolest since:
1912
107th Warmest
Warmest since:
2014, 2015
Ties: 1895, 1900, 1919, 1998
Feb–Oct 1955
9-Month		60.3°F
(15.7°C)		61.5°F
(16.4°C)		-1.2°F
(-0.7°C)		12th Coolest
Coolest since:
1912
117th Warmest
Warmest since:
2015
Ties: 1902
Jan–Oct 1955
10-Month		58.1°F
(14.5°C)		59.6°F
(15.3°C)		-1.5°F
(-0.8°C)		5th Coolest
Coolest since:
1911, 1912
124th Warmest
Warmest since:
2015
Dec 1954–Oct 1955
11-Month		56.6°F
(13.7°C)		58.1°F
(14.5°C)		-1.5°F
(-0.8°C)		5th Coolest
Coolest since:
1912
123rd Warmest
Warmest since:
2015
Ties: 1903
Nov 1954–Oct 1955
12-Month		56.2°F
(13.4°C)		57.4°F
(14.1°C)		-1.2°F
(-0.7°C)		10th Coolest
Coolest since:
1912
118th Warmest
Warmest since:
2015
Ties: 1907, 1919, 1975
May 1954–Oct 1955
18-Month		59.8°F
(15.4°C)		60.8°F
(16.0°C)		-1.0°F
(-0.6°C)		10th Coolest
Coolest since:
1912
118th Warmest
Warmest since:
2015
Ties: 1907, 1948
Nov 1953–Oct 1955
24-Month		57.0°F
(13.9°C)		57.4°F
(14.1°C)		-0.4°F
(-0.2°C)		33rd Coolest
Coolest since:
1912, 1949
94th Warmest
Warmest since:
2015
Ties: 1902, 1930, 1946, 1972, 1973, 1975
Nov 1952–Oct 1955
36-Month		56.9°F
(13.8°C)		57.4°F
(14.1°C)		-0.5°F
(-0.3°C)		27th Coolest
Coolest since:
1913
99th Warmest
Warmest since:
2016
Ties: 1898, 1901, 1905, 1907, 1915, 1973, 1975
Nov 1951–Oct 1955
48-Month		56.9°F
(13.8°C)		57.4°F
(14.1°C)		-0.5°F
(-0.3°C)		26th Coolest
Coolest since:
1912, 1913
99th Warmest
Warmest since:
2017
Ties: 1901, 1902, 1905, 1906, 1948, 1956, 1965, 1976
Nov 1950–Oct 1955
60-Month		57.1°F
(13.9°C)		57.4°F
(14.1°C)		-0.3°F
(-0.2°C)		37th Coolest
Coolest since:
1913
87th Warmest
Warmest since:
2018
Ties: 1926, 1933, 1945, 1946, 1965, 1966, 1977

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