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.

Pacific Northwest Basin

Average Temperature Rankings, December 1948

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
December 1948
1-Month
21.7°F
(-5.7°C)
28.1°F
(-2.2°C)
-6.4°F
(-3.5°C)
7th Coolest
Coolest since:
1990
122nd Warmest
Warmest since:
1917
Ties: 1909
Nov–Dec 1948
2-Month
27.2°F
(-2.7°C)
31.3°F
(-0.4°C)
-4.1°F
(-2.3°C)
6th Coolest
Coolest since:
1985
123rd Warmest
Warmest since:
1917
Oct–Dec 1948
3-Month
33.2°F
(0.7°C)
36.2°F
(2.3°C)
-3.0°F
(-1.6°C)
7th Coolest
Coolest since:
1985
122nd Warmest
Warmest since:
1917
Ties: 1930
Sep–Dec 1948
4-Month
38.6°F
(3.7°C)
41.1°F
(5.1°C)
-2.5°F
(-1.4°C)
9th Coolest
Coolest since:
1985
120th Warmest
Warmest since:
1917
Ties: 1971
Aug–Dec 1948
5-Month
43.1°F
(6.2°C)
45.5°F
(7.5°C)
-2.4°F
(-1.3°C)
5th Coolest
Coolest since:
1985
124th Warmest
Warmest since:
1917, 2014
Jul–Dec 1948
6-Month
46.2°F
(7.9°C)
48.6°F
(9.2°C)
-2.4°F
(-1.3°C)
3rd Coolest
Coolest since:
1985
126th Warmest
Warmest since:
2014
Ties: 1912, 1919
Jun–Dec 1948
7-Month
48.1°F
(8.9°C)
49.8°F
(9.9°C)
-1.7°F
(-1.0°C)
6th Coolest
Coolest since:
1916
123rd Warmest
Warmest since:
2021
Ties: 1895, 1924, 1984, 1993
May–Dec 1948
8-Month
48.2°F
(9.0°C)
49.8°F
(9.9°C)
-1.6°F
(-0.9°C)
8th Coolest
Coolest since:
1916
121st Warmest
Warmest since:
2021
Ties: 1895
Apr–Dec 1948
9-Month
47.3°F
(8.5°C)
49.0°F
(9.4°C)
-1.7°F
(-0.9°C)
5th Coolest
Coolest since:
1916
124th Warmest
Warmest since:
2021
Ties: 1912, 1955
Mar–Dec 1948
10-Month
45.8°F
(7.7°C)
47.7°F
(8.7°C)
-1.9°F
(-1.0°C)
3rd Coolest
Coolest since:
1916
126th Warmest
Warmest since:
2015
Ties: 1912, 1985
Feb–Dec 1948
11-Month
44.2°F
(6.8°C)
46.1°F
(7.8°C)
-1.9°F
(-1.0°C)
5th Coolest
Coolest since:
1955
124th Warmest
Warmest since:
2015
Ties: 1899
Jan–Dec 1948
12-Month
42.8°F
(6.0°C)
44.4°F
(6.9°C)
-1.6°F
(-0.9°C)
6th Coolest
Coolest since:
1916
123rd Warmest
Warmest since:
2015
Ties: 1913, 1929
Jul 1947–Dec 1948
18-Month
44.8°F
(7.1°C)
45.8°F
(7.7°C)
-1.0°F
(-0.6°C)
15th Coolest
Coolest since:
1985
113th Warmest
Warmest since:
2015
Ties: 1932
Jan 1947–Dec 1948
24-Month
44.0°F
(6.7°C)
44.4°F
(6.9°C)
-0.4°F
(-0.2°C)
33rd Coolest
Coolest since:
1917
95th Warmest
Warmest since:
2015
Ties: 1897, 1904, 1908, 1986
Jan 1946–Dec 1948
36-Month
44.1°F
(6.7°C)
44.4°F
(6.9°C)
-0.3°F
(-0.2°C)
37th Coolest
Coolest since:
1913
90th Warmest
Warmest since:
2016
Ties: 1915, 1933, 1937, 1944, 1955, 1971
Jan 1945–Dec 1948
48-Month
44.2°F
(6.8°C)
44.4°F
(6.9°C)
-0.2°F
(-0.1°C)
40th Coolest
Coolest since:
1913, 1914, 1919
86th Warmest
Warmest since:
2016, 2017
Ties: 1906, 1908, 1945, 1946, 1958, 1978
Jan 1944–Dec 1948
60-Month
44.2°F
(6.8°C)
44.4°F
(6.9°C)
-0.2°F
(-0.1°C)
39th Coolest
Coolest since:
1913
86th Warmest
Warmest since:
2018
Ties: 1904, 1907, 1946, 1958, 1959, 1972, 1975

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