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 1971

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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
February 1971
1-Month
2.37"
(60.20mm)
2.13"
(54.10mm)
0.24"
(6.10mm)
91st Driest
Driest since:
1947
38th Wettest
Wettest since:
1998
Jan–Feb 1971
2-Month
4.40"
(111.76mm)
4.45"
(113.03mm)
-0.05"
(-1.27mm)
62nd Driest
Driest since:
1977
67th Wettest
Wettest since:
1998
Ties: 1992
Dec 1970–Feb 1971
3-Month
6.62"
(168.15mm)
6.79"
(172.47mm)
-0.17"
(-4.32mm)
55th Driest
Driest since:
1977
73rd Wettest
Wettest since:
2019
Ties: 1900
Nov 1970–Feb 1971
4-Month
8.82"
(224.03mm)
9.02"
(229.11mm)
-0.20"
(-5.08mm)
56th Driest
Driest since:
1977
72nd Wettest
Wettest since:
2019
Oct 1970–Feb 1971
5-Month
11.70"
(297.18mm)
11.19"
(284.23mm)
0.51"
(12.95mm)
79th Driest
Driest since:
1977
49th Wettest
Wettest since:
2019
Sep 1970–Feb 1971
6-Month
14.76"
(374.90mm)
13.68"
(347.47mm)
1.08"
(27.43mm)
93rd Driest
Driest since:
1977
35th Wettest
Wettest since:
2019
Ties: 1962
Aug 1970–Feb 1971
7-Month
17.13"
(435.10mm)
16.31"
(414.27mm)
0.82"
(20.83mm)
89th Driest
Driest since:
1977
39th Wettest
Wettest since:
2019
Ties: 1949
Jul 1970–Feb 1971
8-Month
19.54"
(496.32mm)
19.09"
(484.89mm)
0.45"
(11.43mm)
76th Driest
Driest since:
1977
52nd Wettest
Wettest since:
2019
Ties: 1906
Jun 1970–Feb 1971
9-Month
22.31"
(566.67mm)
22.02"
(559.31mm)
0.29"
(7.36mm)
66th Driest
Driest since:
1918, 1931, 1977
62nd Wettest
Wettest since:
2019
Ties: 1980
May 1970–Feb 1971
10-Month
24.92"
(632.97mm)
24.92"
(632.97mm)
0.00"
(0.00mm)
57th Driest
Driest since:
1918
71st Wettest
Wettest since:
2019
Apr 1970–Feb 1971
11-Month
27.70"
(703.58mm)
27.45"
(697.23mm)
0.25"
(6.35mm)
61st Driest
Driest since:
1931
67th Wettest
Wettest since:
2019
Mar 1970–Feb 1971
12-Month
30.38"
(771.65mm)
29.96"
(760.98mm)
0.42"
(10.67mm)
65th Driest
Driest since:
1931
63rd Wettest
Wettest since:
2019
Ties: 1899
Sep 1969–Feb 1971
18-Month
43.63"
(1,108.20mm)
43.65"
(1,108.71mm)
-0.02"
(-0.51mm)
57th Driest
Driest since:
1918
70th Wettest
Wettest since:
2020
Mar 1969–Feb 1971
24-Month
59.49"
(1,511.05mm)
59.92"
(1,521.97mm)
-0.43"
(-10.92mm)
55th Driest
Driest since:
1935
72nd Wettest
Wettest since:
2020
Mar 1968–Feb 1971
36-Month
91.47"
(2,323.34mm)
89.87"
(2,282.70mm)
1.60"
(40.64mm)
75th Driest
Driest since:
1957
51st Wettest
Wettest since:
2020
Mar 1967–Feb 1971
48-Month
121.15"
(3,077.21mm)
119.77"
(3,042.16mm)
1.38"
(35.05mm)
69th Driest
Driest since:
1957
56th Wettest
Wettest since:
2019
Mar 1966–Feb 1971
60-Month
147.48"
(3,745.99mm)
149.63"
(3,800.60mm)
-2.15"
(-54.61mm)
47th Driest
Driest since:
1957
77th Wettest
Wettest since:
2020

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