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 1977

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
February 1977
1-Month
1.23"
(31.24mm)
2.13"
(54.10mm)
-0.90"
(-22.86mm)
2nd Driest
Driest since:
1947
127th Wettest
Wettest since:
1998
Jan–Feb 1977
2-Month
2.81"
(71.37mm)
4.45"
(113.03mm)
-1.64"
(-41.66mm)
1st Driest
Driest since:
1977
128th Wettest
Wettest since:
1998
Dec 1976–Feb 1977
3-Month
4.17"
(105.92mm)
6.79"
(172.47mm)
-2.62"
(-66.55mm)
1st Driest
Driest since:
1977
127th Wettest
Wettest since:
2019
Nov 1976–Feb 1977
4-Month
5.28"
(134.11mm)
9.02"
(229.11mm)
-3.74"
(-95.00mm)
1st Driest
Driest since:
1977
127th Wettest
Wettest since:
2019
Oct 1976–Feb 1977
5-Month
7.72"
(196.09mm)
11.19"
(284.23mm)
-3.47"
(-88.14mm)
1st Driest
Driest since:
1977
127th Wettest
Wettest since:
2019
Sep 1976–Feb 1977
6-Month
10.17"
(258.32mm)
13.68"
(347.47mm)
-3.51"
(-89.15mm)
1st Driest
Driest since:
1977
127th Wettest
Wettest since:
2019
Aug 1976–Feb 1977
7-Month
12.17"
(309.12mm)
16.31"
(414.27mm)
-4.14"
(-105.15mm)
1st Driest
Driest since:
1977
127th Wettest
Wettest since:
2019
Jul 1976–Feb 1977
8-Month
14.91"
(378.71mm)
19.09"
(484.89mm)
-4.18"
(-106.18mm)
1st Driest
Driest since:
1977
127th Wettest
Wettest since:
2019
Jun 1976–Feb 1977
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, 1931
May 1976–Feb 1977
10-Month
20.61"
(523.49mm)
24.92"
(632.97mm)
-4.31"
(-109.48mm)
2nd Driest
Driest since:
1918
126th Wettest
Wettest since:
2019
Apr 1976–Feb 1977
11-Month
22.90"
(581.66mm)
27.45"
(697.23mm)
-4.55"
(-115.57mm)
3rd Driest
Driest since:
1931
125th Wettest
Wettest since:
2019
Mar 1976–Feb 1977
12-Month
25.47"
(646.94mm)
29.96"
(760.98mm)
-4.49"
(-114.04mm)
4th Driest
Driest since:
1931
124th Wettest
Wettest since:
2019
Sep 1975–Feb 1977
18-Month
38.47"
(977.14mm)
43.65"
(1,108.71mm)
-5.18"
(-131.57mm)
6th Driest
Driest since:
1918
121st Wettest
Wettest since:
2020
Mar 1975–Feb 1977
24-Month
56.93"
(1,446.02mm)
59.92"
(1,521.97mm)
-2.99"
(-75.95mm)
24th Driest
Driest since:
1935
103rd Wettest
Wettest since:
2020
Ties: 1990
Mar 1974–Feb 1977
36-Month
87.94"
(2,233.68mm)
89.87"
(2,282.70mm)
-1.93"
(-49.02mm)
43rd Driest
Driest since:
1957
83rd Wettest
Wettest since:
2020
Mar 1973–Feb 1977
48-Month
123.29"
(3,131.57mm)
119.77"
(3,042.16mm)
3.52"
(89.41mm)
90th Driest
Driest since:
1957
35th Wettest
Wettest since:
2019
Mar 1972–Feb 1977
60-Month
155.30"
(3,944.62mm)
149.63"
(3,800.60mm)
5.67"
(144.02mm)
96th Driest
Driest since:
1957
28th Wettest
Wettest since:
2020

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