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.

Northwest Climate Region

Precipitation Rankings, December 1954

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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
December 1954
1-Month
3.68"
(93.47mm)
4.63"
(117.60mm)
-0.95"
(-24.13mm)
40th Driest
Driest since:
1976
89th Wettest
Wettest since:
1964
Nov–Dec 1954
2-Month
7.18"
(182.37mm)
8.97"
(227.84mm)
-1.79"
(-45.47mm)
35th Driest
Driest since:
1976
94th Wettest
Wettest since:
1996
Oct–Dec 1954
3-Month
8.83"
(224.28mm)
11.51"
(292.35mm)
-2.68"
(-68.07mm)
24th Driest
Driest since:
1976
105th Wettest
Wettest since:
1996
Sep–Dec 1954
4-Month
9.99"
(253.75mm)
12.93"
(328.42mm)
-2.94"
(-74.67mm)
21st Driest
Driest since:
1976
108th Wettest
Wettest since:
1996
Aug–Dec 1954
5-Month
11.41"
(289.81mm)
13.73"
(348.74mm)
-2.32"
(-58.93mm)
30th Driest
Driest since:
1936
99th Wettest
Wettest since:
1996
Jul–Dec 1954
6-Month
12.16"
(308.86mm)
14.46"
(367.28mm)
-2.30"
(-58.42mm)
33rd Driest
Driest since:
1936
96th Wettest
Wettest since:
1996
Jun–Dec 1954
7-Month
14.79"
(375.67mm)
16.18"
(410.97mm)
-1.39"
(-35.30mm)
50th Driest
Driest since:
1976
79th Wettest
Wettest since:
1996
May–Dec 1954
8-Month
16.06"
(407.92mm)
18.32"
(465.33mm)
-2.26"
(-57.41mm)
37th Driest
Driest since:
1935
92nd Wettest
Wettest since:
1996
Ties: 1986
Apr–Dec 1954
9-Month
18.41"
(467.61mm)
20.67"
(525.02mm)
-2.26"
(-57.41mm)
37th Driest
Driest since:
1976
92nd Wettest
Wettest since:
1996
Mar–Dec 1954
10-Month
20.90"
(530.86mm)
23.93"
(607.82mm)
-3.03"
(-76.96mm)
29th Driest
Driest since:
1976
100th Wettest
Wettest since:
1996
Feb–Dec 1954
11-Month
24.24"
(615.70mm)
27.54"
(699.52mm)
-3.30"
(-83.82mm)
30th Driest
Driest since:
1935
99th Wettest
Wettest since:
1996
Jan–Dec 1954
12-Month
31.19"
(792.23mm)
32.07"
(814.58mm)
-0.88"
(-22.35mm)
61st Driest
Driest since:
1929
68th Wettest
Wettest since:
1996
Jul 1953–Dec 1954
18-Month
45.30"
(1,150.62mm)
46.58"
(1,183.13mm)
-1.28"
(-32.51mm)
55th Driest
Driest since:
1929
73rd Wettest
Wettest since:
1996
Jan 1953–Dec 1954
24-Month
69.14"
(1,756.16mm)
64.19"
(1,630.43mm)
4.95"
(125.73mm)
106th Driest
Driest since:
1930
22nd Wettest
Wettest since:
1996
Jan 1952–Dec 1954
36-Month
93.33"
(2,370.58mm)
96.33"
(2,446.78mm)
-3.00"
(-76.20mm)
40th Driest
Driest since:
1930
87th Wettest
Wettest since:
1997
Jan 1951–Dec 1954
48-Month
128.21"
(3,256.53mm)
128.33"
(3,259.58mm)
-0.12"
(-3.05mm)
69th Driest
Driest since:
1931
57th Wettest
Wettest since:
1998
Jan 1950–Dec 1954
60-Month
168.27"
(4,274.06mm)
160.34"
(4,072.64mm)
7.93"
(201.42mm)
106th Driest
Driest since:
1932
19th Wettest
Wettest since:
1999

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