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 1897

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  • Record Warmest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Warmest/Coolest
Since
Record
December 1897
1-Month
28.1°F
(-2.2°C)
28.1°F
(-2.2°C)
0.0°F
(0.0°C)
60th Coolest
Coolest since:
1990
69th Warmest
Warmest since:
1917
Ties: 1915
Nov–Dec 1897
2-Month
31.0°F
(-0.6°C)
31.3°F
(-0.4°C)
-0.3°F
(-0.2°C)
51st Coolest
Coolest since:
1985
78th Warmest
Warmest to Date
1917
Ties: 1960, 2003
Oct–Dec 1897
3-Month
35.7°F
(2.1°C)
36.1°F
(2.3°C)
-0.4°F
(-0.2°C)
43rd Coolest
Coolest since:
1985
86th Warmest
Warmest to Date
1917
Sep–Dec 1897
4-Month
40.4°F
(4.7°C)
41.1°F
(5.1°C)
-0.7°F
(-0.4°C)
37th Coolest
Coolest since:
1985
92nd Warmest
Warmest to Date
1917
Ties: 1903, 1915, 1920, 1932, 1968
Aug–Dec 1897
5-Month
45.4°F
(7.4°C)
45.4°F
(7.4°C)
0.0°F
(0.0°C)
52nd Coolest
Coolest since:
1985
77th Warmest
Warmest to Date
1917, 2014
Ties: 1910, 1945, 1990
Jul–Dec 1897
6-Month
48.0°F
(8.9°C)
48.6°F
(9.2°C)
-0.6°F
(-0.3°C)
36th Coolest
Coolest since:
1985
93rd Warmest
Warmest since:
2014
Ties: 1899, 1928, 1959
Jun–Dec 1897
7-Month
49.1°F
(9.5°C)
49.7°F
(9.8°C)
-0.6°F
(-0.3°C)
31st Coolest
Coolest since:
1916
98th Warmest
Warmest since:
2021
Ties: 1908, 1932, 1935
May–Dec 1897
8-Month
49.9°F
(9.9°C)
49.8°F
(9.9°C)
0.1°F
(0.0°C)
58th Coolest
Coolest since:
1916
71st Warmest
Warmest to Date
2021
Ties: 1923
Apr–Dec 1897
9-Month
49.3°F
(9.6°C)
49.0°F
(9.4°C)
0.3°F
(0.2°C)
64th Coolest
Coolest since:
1916
65th Warmest
Warmest to Date
2021
Ties: 1953, 1957, 2000
Mar–Dec 1897
10-Month
47.2°F
(8.4°C)
47.6°F
(8.7°C)
-0.4°F
(-0.3°C)
35th Coolest
Coolest since:
1916
94th Warmest
Warmest to Date
2015
Ties: 1959, 1972, 1976, 2011
Feb–Dec 1897
11-Month
45.6°F
(7.6°C)
46.1°F
(7.8°C)
-0.5°F
(-0.2°C)
36th Coolest
Coolest since:
1955
93rd Warmest
Warmest to Date
2015
Ties: 1976
Jan–Dec 1897
12-Month
44.0°F
(6.7°C)
44.5°F
(6.9°C)
-0.5°F
(-0.2°C)
36th Coolest
Coolest since:
1916
93rd Warmest
Warmest since:
2015
Ties: 1896, 1905, 1907, 1908, 1923, 1942, 1944, 1972
Jul 1896–Dec 1897
18-Month
45.4°F
(7.4°C)
45.9°F
(7.7°C)
-0.5°F
(-0.3°C)
32nd Coolest
Coolest since:
1985
96th Warmest
Warmest to Date
2015
Ties: 1901, 1923, 1950, 1982
Jan 1896–Dec 1897
24-Month
44.0°F
(6.7°C)
44.5°F
(6.9°C)
-0.5°F
(-0.2°C)
33rd Coolest
Coolest since:
1917
95th Warmest
Warmest to Date
2015
Ties: 1904, 1908, 1948, 1986
Jan 1895–Dec 1897
36-Month
43.6°F
(6.4°C)
44.4°F
(6.9°C)
-0.8°F
(-0.5°C)
15th Coolest
Coolest since:
1913
112th Warmest
Warmest to Date
2016
Ties: 1903, 1923, 1929, 1930

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