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, April 2016

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  • Record Wettest
PeriodValue1901-2000
Mean
AnomalyRank
(1895-2023)
Wettest/Driest
Since
Record
April 2016
1-Month
3.00"
(76.20mm)
2.52"
(64.01mm)
0.48"
(12.19mm)
109th Driest
Driest since:
1987
21st Wettest
Wettest since:
1957
Mar–Apr 2016
2-Month
5.92"
(150.37mm)
5.03"
(127.76mm)
0.89"
(22.61mm)
114th Driest
Driest since:
1910
16th Wettest
Wettest since:
1973
Feb–Apr 2016
3-Month
7.85"
(199.39mm)
7.16"
(181.86mm)
0.69"
(17.53mm)
103rd Driest
Driest since:
1910
27th Wettest
Wettest since:
1983
Jan–Apr 2016
4-Month
9.89"
(251.21mm)
9.48"
(240.79mm)
0.41"
(10.42mm)
87th Driest
Driest since:
1910
43rd Wettest
Wettest since:
1998
Dec 2015–Apr 2016
5-Month
13.95"
(354.33mm)
11.82"
(300.23mm)
2.13"
(54.10mm)
122nd Driest
Driest since:
1931
7th Wettest
Wettest since:
1983
Nov 2015–Apr 2016
6-Month
17.30"
(439.42mm)
14.05"
(356.87mm)
3.25"
(82.55mm)
126th Driest
Driest since:
1977
3rd Wettest
Wettest since:
1983
Oct 2015–Apr 2016
7-Month
20.20"
(513.08mm)
16.22"
(411.99mm)
3.98"
(101.09mm)
125th Driest
Driest since:
1981
4th Wettest
Wettest since:
1983
Sep 2015–Apr 2016
8-Month
22.32"
(566.93mm)
18.71"
(475.23mm)
3.61"
(91.70mm)
124th Driest
Driest since:
1918
5th Wettest
Wettest since:
2019
Aug 2015–Apr 2016
9-Month
24.73"
(628.14mm)
21.33"
(541.78mm)
3.40"
(86.36mm)
123rd Driest
Driest since:
1918
6th Wettest
Wettest since:
2019
Jul 2015–Apr 2016
10-Month
27.96"
(710.18mm)
24.12"
(612.65mm)
3.84"
(97.53mm)
124th Driest
Driest since:
1931
5th Wettest
Wettest since:
2019
Jun 2015–Apr 2016
11-Month
31.51"
(800.35mm)
27.04"
(686.82mm)
4.47"
(113.53mm)
125th Driest
Driest since:
1931
4th Wettest
Wettest since:
2019
May 2015–Apr 2016
12-Month
35.95"
(913.13mm)
29.95"
(760.73mm)
6.00"
(152.40mm)
127th Driest
Driest since:
1918
2nd Wettest
Wettest to Date
2019
Nov 2014–Apr 2016
18-Month
49.19"
(1,249.43mm)
44.02"
(1,118.11mm)
5.17"
(131.32mm)
121st Driest
Driest since:
1931
7th Wettest
Wettest since:
2020
May 2014–Apr 2016
24-Month
66.46"
(1,688.08mm)
59.92"
(1,521.97mm)
6.54"
(166.11mm)
120th Driest
Driest since:
1955
8th Wettest
Wettest since:
2020
May 2013–Apr 2016
36-Month
97.38"
(2,473.45mm)
89.88"
(2,282.95mm)
7.50"
(190.50mm)
114th Driest
Driest since:
1955
13th Wettest
Wettest since:
2020
May 2012–Apr 2016
48-Month
124.88"
(3,171.95mm)
119.77"
(3,042.16mm)
5.11"
(129.79mm)
103rd Driest
Driest since:
1956
23rd Wettest
Wettest since:
2019
May 2011–Apr 2016
60-Month
154.06"
(3,913.12mm)
149.63"
(3,800.60mm)
4.43"
(112.52mm)
93rd Driest
Driest since:
1957
32nd Wettest
Wettest since:
2020

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