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, January 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
January 1977
1-Month
1.58"
(40.13mm)
2.31"
(58.67mm)
-0.73"
(-18.54mm)
12th Driest
Driest since:
1981
117th Wettest
Wettest since:
1916
Ties: 1942
Dec 1976–Jan 1977
2-Month
2.94"
(74.68mm)
4.66"
(118.36mm)
-1.72"
(-43.68mm)
4th Driest
Driest since:
1981
124th Wettest
Wettest since:
1932
Nov 1976–Jan 1977
3-Month
4.05"
(102.87mm)
6.89"
(175.01mm)
-2.84"
(-72.14mm)
1st Driest
Driest since:
1977
127th Wettest
Wettest since:
2016
Oct 1976–Jan 1977
4-Month
6.49"
(164.85mm)
9.06"
(230.12mm)
-2.57"
(-65.27mm)
4th Driest
Driest since:
1981
124th Wettest
Wettest since:
2016
Sep 1976–Jan 1977
5-Month
8.94"
(227.08mm)
11.55"
(293.37mm)
-2.61"
(-66.29mm)
5th Driest
Driest since:
1940
123rd Wettest
Wettest since:
2019
Aug 1976–Jan 1977
6-Month
10.94"
(277.88mm)
14.17"
(359.92mm)
-3.23"
(-82.04mm)
2nd Driest
Driest since:
1940
126th Wettest
Wettest since:
2019
Jul 1976–Jan 1977
7-Month
13.68"
(347.47mm)
16.96"
(430.78mm)
-3.28"
(-83.31mm)
6th Driest
Driest since:
1940
122nd Wettest
Wettest since:
2019
Jun 1976–Jan 1977
8-Month
16.45"
(417.83mm)
19.88"
(504.95mm)
-3.43"
(-87.12mm)
6th Driest
Driest since:
1981
122nd Wettest
Wettest since:
2019
May 1976–Jan 1977
9-Month
19.38"
(492.25mm)
22.79"
(578.87mm)
-3.41"
(-86.62mm)
8th Driest
Driest since:
1918
120th Wettest
Wettest since:
2016
Apr 1976–Jan 1977
10-Month
21.67"
(550.42mm)
25.32"
(643.13mm)
-3.65"
(-92.71mm)
8th Driest
Driest since:
1940
120th Wettest
Wettest since:
2016
Mar 1976–Jan 1977
11-Month
24.24"
(615.70mm)
27.83"
(706.88mm)
-3.59"
(-91.18mm)
7th Driest
Driest since:
1957
121st Wettest
Wettest since:
1974
Feb 1976–Jan 1977
12-Month
26.13"
(663.70mm)
29.96"
(760.98mm)
-3.83"
(-97.28mm)
8th Driest
Driest since:
1931
120th Wettest
Wettest since:
1974
Aug 1975–Jan 1977
18-Month
40.07"
(1,017.78mm)
44.14"
(1,121.16mm)
-4.07"
(-103.38mm)
13th Driest
Driest since:
1955
114th Wettest
Wettest since:
2020
Feb 1975–Jan 1977
24-Month
58.31"
(1,481.07mm)
59.93"
(1,522.22mm)
-1.62"
(-41.15mm)
38th Driest
Driest since:
1918
89th Wettest
Wettest since:
2020
Feb 1974–Jan 1977
36-Month
88.39"
(2,245.11mm)
89.86"
(2,282.44mm)
-1.47"
(-37.33mm)
43rd Driest
Driest since:
1957
83rd Wettest
Wettest since:
2020
Feb 1973–Jan 1977
48-Month
124.02"
(3,150.11mm)
119.76"
(3,041.90mm)
4.26"
(108.21mm)
96th Driest
Driest since:
1957
29th Wettest
Wettest since:
2020
Feb 1972–Jan 1977
60-Month
155.87"
(3,959.10mm)
149.63"
(3,800.60mm)
6.24"
(158.50mm)
98th Driest
Driest since:
1957
26th Wettest
Wettest since:
2020

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