Climate at a Glance

Regional Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of December 2021. For more information, please see Climatological Rankings.


Northwest Climate Region

Precipitation Rankings, December 1940

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
December 1940
1-Month
3.86"
(98.04mm)
4.63"
(117.60mm)
-0.77"
(-19.56mm)
44th Driest Driest since: 1938 1976
84th Wettest Wettest since: 1939 1964
Ties: 1926
Nov–Dec 1940
2-Month
7.52"
(191.01mm)
8.97"
(227.84mm)
-1.45"
(-36.83mm)
38th Driest Driest since: 1939 1976
90th Wettest Wettest since: 1937 1996
Oct–Dec 1940
3-Month
11.37"
(288.80mm)
11.51"
(292.35mm)
-0.14"
(-3.55mm)
62nd Driest Driest since: 1939 1976
66th Wettest Wettest since: 1937 1996
Sep–Dec 1940
4-Month
14.56"
(369.82mm)
12.93"
(328.42mm)
1.63"
(41.40mm)
84th Driest Driest since: 1939 1976
44th Wettest Wettest since: 1937 1996
Aug–Dec 1940
5-Month
14.74"
(374.40mm)
13.73"
(348.74mm)
1.01"
(25.66mm)
79th Driest Driest since: 1939 1936
49th Wettest Wettest since: 1937 1996
Jul–Dec 1940
6-Month
15.65"
(397.51mm)
14.46"
(367.28mm)
1.19"
(30.23mm)
81st Driest Driest since: 1939 1936
47th Wettest Wettest since: 1937 1996
Jun–Dec 1940
7-Month
16.19"
(411.23mm)
16.18"
(410.97mm)
0.01"
(0.26mm)
63rd Driest Driest since: 1939 1976
65th Wettest Wettest since: 1937 1996
May–Dec 1940
8-Month
17.28"
(438.91mm)
18.32"
(465.33mm)
-1.04"
(-26.42mm)
53rd Driest Driest since: 1939 1935
75th Wettest Wettest since: 1937 1996
Ties: 1991
Apr–Dec 1940
9-Month
20.06"
(509.52mm)
20.67"
(525.02mm)
-0.61"
(-15.50mm)
57th Driest Driest since: 1939 1976
71st Wettest Wettest since: 1937 1996
Mar–Dec 1940
10-Month
24.26"
(616.20mm)
23.93"
(607.82mm)
0.33"
(8.38mm)
63rd Driest Driest since: 1939 1976
65th Wettest Wettest since: 1937 1996
Feb–Dec 1940
11-Month
31.31"
(795.27mm)
27.54"
(699.52mm)
3.77"
(95.75mm)
102nd Driest Driest since: 1939 1935
26th Wettest Wettest since: 1937 1996
Jan–Dec 1940
12-Month
34.91"
(886.71mm)
32.07"
(814.58mm)
2.84"
(72.13mm)
89th Driest Driest since: 1939 1929
39th Wettest Wettest since: 1937 1996
Jul 1939–Dec 1940
18-Month
46.26"
(1,175.00mm)
46.58"
(1,183.13mm)
-0.32"
(-8.13mm)
63rd Driest Driest since: 1939 1929
64th Wettest Wettest since: 1938 1996
Jan 1939–Dec 1940
24-Month
59.73"
(1,517.14mm)
64.19"
(1,630.43mm)
-4.46"
(-113.29mm)
31st Driest Driest since: 1939 1930
96th Wettest Wettest since: 1938 1996
Jan 1938–Dec 1940
36-Month
89.95"
(2,284.73mm)
96.33"
(2,446.78mm)
-6.38"
(-162.05mm)
27th Driest Driest since: 1937 1930
99th Wettest Wettest since: 1939 1997
Jan 1937–Dec 1940
48-Month
127.46"
(3,237.48mm)
128.33"
(3,259.58mm)
-0.87"
(-22.10mm)
64th Driest Driest since: 1939 1931
61st Wettest Wettest since: 1917 1998
Jan 1936–Dec 1940
60-Month
155.31"
(3,944.87mm)
160.34"
(4,072.64mm)
-5.03"
(-127.77mm)
36th Driest Driest since: 1939 1932
88th Wettest Wettest since: 1923 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Regional Time Series, published January 2022, retrieved on January 17, 2022 from https://www.ncdc.noaa.gov/cag/