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 1987

View Period (Months):
Download: csv json xml
  • Record Driest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
April 1987
1-Month
1.46"
(37.08mm)
2.52"
(64.01mm)
-1.06"
(-26.93mm)
1st Driest
Driest since:
1987
128th Wettest
Wettest since:
1957
Mar–Apr 1987
2-Month
4.13"
(104.90mm)
5.03"
(127.76mm)
-0.90"
(-22.86mm)
11th Driest
Driest since:
1910
118th Wettest
Wettest since:
1973
Feb–Apr 1987
3-Month
6.46"
(164.08mm)
7.16"
(181.86mm)
-0.70"
(-17.78mm)
23rd Driest
Driest since:
1910
106th Wettest
Wettest since:
1983
Jan–Apr 1987
4-Month
8.63"
(219.20mm)
9.47"
(240.54mm)
-0.84"
(-21.34mm)
26th Driest
Driest since:
1910
103rd Wettest
Wettest since:
1998
Dec 1986–Apr 1987
5-Month
10.63"
(270.00mm)
11.82"
(300.23mm)
-1.19"
(-30.23mm)
21st Driest
Driest since:
1931
107th Wettest
Wettest since:
1983
Nov 1986–Apr 1987
6-Month
13.57"
(344.68mm)
14.05"
(356.87mm)
-0.48"
(-12.19mm)
51st Driest
Driest since:
1977
77th Wettest
Wettest since:
1983
Ties: 1950
Oct 1986–Apr 1987
7-Month
16.38"
(416.05mm)
16.22"
(411.99mm)
0.16"
(4.06mm)
73rd Driest
Driest since:
1981
55th Wettest
Wettest since:
1983
Sep 1986–Apr 1987
8-Month
19.97"
(507.24mm)
18.71"
(475.23mm)
1.26"
(32.01mm)
99th Driest
Driest since:
1918
29th Wettest
Wettest since:
2019
Aug 1986–Apr 1987
9-Month
22.79"
(578.87mm)
21.33"
(541.78mm)
1.46"
(37.09mm)
102nd Driest
Driest since:
1918
26th Wettest
Wettest since:
2019
Jul 1986–Apr 1987
10-Month
25.54"
(648.72mm)
24.12"
(612.65mm)
1.42"
(36.07mm)
97th Driest
Driest since:
1931
31st Wettest
Wettest since:
2019
Ties: 1980
Jun 1986–Apr 1987
11-Month
28.57"
(725.68mm)
27.04"
(686.82mm)
1.53"
(38.86mm)
97th Driest
Driest since:
1931
31st Wettest
Wettest since:
2019
May 1986–Apr 1987
12-Month
31.52"
(800.61mm)
29.95"
(760.73mm)
1.57"
(39.88mm)
96th Driest
Driest since:
1918
32nd Wettest
Wettest since:
2019
Ties: 1999
Nov 1985–Apr 1987
18-Month
45.01"
(1,143.25mm)
44.02"
(1,118.11mm)
0.99"
(25.14mm)
82nd Driest
Driest since:
1931
45th Wettest
Wettest since:
2020
May 1985–Apr 1987
24-Month
62.01"
(1,575.05mm)
59.92"
(1,521.97mm)
2.09"
(53.08mm)
90th Driest
Driest since:
1955
37th Wettest
Wettest since:
2020
May 1984–Apr 1987
36-Month
92.22"
(2,342.39mm)
89.88"
(2,282.95mm)
2.34"
(59.44mm)
82nd Driest
Driest since:
1955
44th Wettest
Wettest since:
2020
May 1983–Apr 1987
48-Month
124.48"
(3,161.79mm)
119.77"
(3,042.16mm)
4.71"
(119.63mm)
100th Driest
Driest since:
1956
25th Wettest
Wettest since:
2019
May 1982–Apr 1987
60-Month
159.90"
(4,061.46mm)
149.63"
(3,800.60mm)
10.27"
(260.86mm)
114th Driest
Driest since:
1957
10th Wettest
Wettest since:
2020

Citing This Page