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, February 1931

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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
February 1931
1-Month
1.84"
(46.74mm)
2.13"
(54.10mm)
-0.29"
(-7.36mm)
37th Driest
Driest since:
1947
92nd Wettest
Wettest since:
1998
Ties: 1928
Jan–Feb 1931
2-Month
3.40"
(86.36mm)
4.45"
(113.03mm)
-1.05"
(-26.67mm)
7th Driest
Driest since:
1977
122nd Wettest
Wettest since:
1998
Dec 1930–Feb 1931
3-Month
4.68"
(118.87mm)
6.79"
(172.47mm)
-2.11"
(-53.60mm)
2nd Driest
Driest since:
1977
126th Wettest
Wettest since:
2019
Nov 1930–Feb 1931
4-Month
6.96"
(176.78mm)
9.02"
(229.11mm)
-2.06"
(-52.33mm)
5th Driest
Driest since:
1977
123rd Wettest
Wettest since:
2019
Oct 1930–Feb 1931
5-Month
9.27"
(235.46mm)
11.19"
(284.23mm)
-1.92"
(-48.77mm)
8th Driest
Driest since:
1977
120th Wettest
Wettest since:
2019
Sep 1930–Feb 1931
6-Month
11.60"
(294.64mm)
13.68"
(347.47mm)
-2.08"
(-52.83mm)
13th Driest
Driest since:
1977
115th Wettest
Wettest since:
2019
Aug 1930–Feb 1931
7-Month
13.56"
(344.42mm)
16.31"
(414.27mm)
-2.75"
(-69.85mm)
4th Driest
Driest since:
1977
124th Wettest
Wettest since:
2019
Jul 1930–Feb 1931
8-Month
15.35"
(389.89mm)
19.09"
(484.89mm)
-3.74"
(-95.00mm)
3rd Driest
Driest since:
1977
125th Wettest
Wettest since:
2019
Jun 1930–Feb 1931
9-Month
17.68"
(449.07mm)
22.02"
(559.31mm)
-4.34"
(-110.24mm)
1st Driest
Driest since:
1918, 1931, 1977
127th Wettest
Wettest since:
2019
Ties: 1918, 1977
May 1930–Feb 1931
10-Month
20.85"
(529.59mm)
24.92"
(632.97mm)
-4.07"
(-103.38mm)
4th Driest
Driest since:
1918
124th Wettest
Wettest since:
2019
Apr 1930–Feb 1931
11-Month
22.68"
(576.07mm)
27.45"
(697.23mm)
-4.77"
(-121.16mm)
1st Driest
Driest since:
1931
127th Wettest
Wettest since:
2019
Mar 1930–Feb 1931
12-Month
24.66"
(626.36mm)
29.96"
(760.98mm)
-5.30"
(-134.62mm)
1st Driest
Driest since:
1931
127th Wettest
Wettest since:
2019
Sep 1929–Feb 1931
18-Month
38.50"
(977.90mm)
43.65"
(1,108.71mm)
-5.15"
(-130.81mm)
7th Driest
Driest since:
1918
120th Wettest
Wettest since:
2020
Mar 1929–Feb 1931
24-Month
54.75"
(1,390.65mm)
59.92"
(1,521.97mm)
-5.17"
(-131.32mm)
12th Driest
Driest since:
1935
115th Wettest
Wettest since:
2020
Ties: 1956
Mar 1928–Feb 1931
36-Month
85.51"
(2,171.95mm)
89.87"
(2,282.70mm)
-4.36"
(-110.75mm)
19th Driest
Driest since:
1957
107th Wettest
Wettest since:
2020
Mar 1927–Feb 1931
48-Month
116.20"
(2,951.48mm)
119.77"
(3,042.16mm)
-3.57"
(-90.68mm)
30th Driest
Driest since:
1957
95th Wettest
Wettest since:
2019
Mar 1926–Feb 1931
60-Month
147.22"
(3,739.39mm)
149.63"
(3,800.60mm)
-2.41"
(-61.21mm)
43rd Driest
Driest since:
1957
81st Wettest
Wettest since:
2020

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