National Rankings

National Data Info
Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Contiguous U.S.

Precipitation Rankings, December 1931

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
December 1931
1-Month
3.38"
(85.85mm)
2.35"
(59.69mm)
1.03"
(26.16mm)
125th Driest
Driest since:
1930
4th Wettest
Wettest to Date
2015
Nov–Dec 1931
2-Month
5.92"
(150.37mm)
4.58"
(116.33mm)
1.34"
(34.04mm)
119th Driest
Driest since:
1976
10th Wettest
Wettest since:
2015
Ties: 1902
Oct–Dec 1931
3-Month
7.82"
(198.63mm)
6.74"
(171.20mm)
1.08"
(27.43mm)
106th Driest
Driest since:
1917
23rd Wettest
Wettest since:
2015
Sep–Dec 1931
4-Month
9.88"
(250.95mm)
9.23"
(234.44mm)
0.65"
(16.51mm)
88th Driest
Driest since:
1939
41st Wettest
Wettest since:
2018
Aug–Dec 1931
5-Month
12.60"
(320.04mm)
11.85"
(300.99mm)
0.75"
(19.05mm)
84th Driest
Driest since:
1917
45th Wettest
Wettest since:
2018
Jul–Dec 1931
6-Month
15.31"
(388.87mm)
14.62"
(371.35mm)
0.69"
(17.52mm)
84th Driest
Driest since:
1917
45th Wettest
Wettest since:
2018
Jun–Dec 1931
7-Month
17.45"
(443.23mm)
17.55"
(445.77mm)
-0.10"
(-2.54mm)
54th Driest
Driest since:
1917
75th Wettest
Wettest since:
2018
May–Dec 1931
8-Month
19.74"
(501.40mm)
20.46"
(519.68mm)
-0.72"
(-18.28mm)
37th Driest
Driest since:
1917
92nd Wettest
Wettest since:
2015
Apr–Dec 1931
9-Month
21.81"
(553.97mm)
22.98"
(583.69mm)
-1.17"
(-29.72mm)
32nd Driest
Driest since:
1956
97th Wettest
Wettest since:
2015
Mar–Dec 1931
10-Month
24.12"
(612.65mm)
25.49"
(647.45mm)
-1.37"
(-34.80mm)
32nd Driest
Driest since:
1956
97th Wettest
Wettest since:
2015
Feb–Dec 1931
11-Month
25.96"
(659.38mm)
27.62"
(701.55mm)
-1.66"
(-42.17mm)
25th Driest
Driest since:
1910
104th Wettest
Wettest since:
2018
Jan–Dec 1931
12-Month
27.52"
(699.01mm)
29.94"
(760.48mm)
-2.42"
(-61.47mm)
18th Driest
Driest since:
1910
111th Wettest
Wettest since:
1973
Jul 1930–Dec 1931
18-Month
39.47"
(1,002.54mm)
44.58"
(1,132.33mm)
-5.11"
(-129.79mm)
7th Driest
Driest since:
1954
121st Wettest
Wettest since:
2019
Ties: 1930
Jan 1930–Dec 1931
24-Month
53.10"
(1,348.74mm)
59.90"
(1,521.46mm)
-6.80"
(-172.72mm)
1st Driest
Driest since:
1931
127th Wettest
Wettest since:
2019
Jan 1929–Dec 1931
36-Month
83.25"
(2,114.55mm)
89.86"
(2,282.44mm)
-6.61"
(-167.89mm)
6th Driest
Driest since:
1956
121st Wettest
Wettest since:
2019
Jan 1928–Dec 1931
48-Month
112.75"
(2,863.85mm)
119.78"
(3,042.41mm)
-7.03"
(-178.56mm)
7th Driest
Driest since:
1956
119th Wettest
Wettest since:
2019
Jan 1927–Dec 1931
60-Month
144.81"
(3,678.17mm)
149.68"
(3,801.87mm)
-4.87"
(-123.70mm)
20th Driest
Driest since:
1956
105th Wettest
Wettest since:
2019

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