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, March 1987

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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
March 1987
1-Month
2.67"
(67.82mm)
2.51"
(63.75mm)
0.16"
(4.07mm)
87th Driest
Driest since:
1910
42nd Wettest
Wettest since:
1973
Ties: 1946
Feb–Mar 1987
2-Month
5.00"
(127.00mm)
4.64"
(117.86mm)
0.36"
(9.14mm)
98th Driest
Driest since:
1910
31st Wettest
Wettest since:
1998
Ties: 1939
Jan–Mar 1987
3-Month
7.17"
(182.12mm)
6.96"
(176.78mm)
0.21"
(5.34mm)
78th Driest
Driest since:
1910
51st Wettest
Wettest since:
1998
Dec 1986–Mar 1987
4-Month
9.17"
(232.92mm)
9.30"
(236.22mm)
-0.13"
(-3.30mm)
60th Driest
Driest since:
1981
68th Wettest
Wettest since:
1983, 1998
Nov 1986–Mar 1987
5-Month
12.11"
(307.59mm)
11.53"
(292.86mm)
0.58"
(14.73mm)
89th Driest
Driest since:
1977
39th Wettest
Wettest since:
1983
Oct 1986–Mar 1987
6-Month
14.92"
(378.97mm)
13.70"
(347.98mm)
1.22"
(30.99mm)
99th Driest
Driest since:
1918
29th Wettest
Wettest since:
1983
Ties: 1999
Sep 1986–Mar 1987
7-Month
18.51"
(470.15mm)
16.19"
(411.23mm)
2.32"
(58.92mm)
118th Driest
Driest since:
1918
10th Wettest
Wettest since:
2019
Aug 1986–Mar 1987
8-Month
21.33"
(541.78mm)
18.82"
(478.03mm)
2.51"
(63.75mm)
116th Driest
Driest since:
1918
12th Wettest
Wettest since:
2019
Jul 1986–Mar 1987
9-Month
24.08"
(611.63mm)
21.60"
(548.64mm)
2.48"
(62.99mm)
114th Driest
Driest since:
1918
14th Wettest
Wettest since:
2019
Jun 1986–Mar 1987
10-Month
27.11"
(688.59mm)
24.53"
(623.06mm)
2.58"
(65.53mm)
113th Driest
Driest since:
1918
15th Wettest
Wettest since:
2019
Ties: 1907
May 1986–Mar 1987
11-Month
30.06"
(763.52mm)
27.43"
(696.72mm)
2.63"
(66.80mm)
112th Driest
Driest since:
1918
16th Wettest
Wettest since:
2019
Apr 1986–Mar 1987
12-Month
32.30"
(820.42mm)
29.96"
(760.98mm)
2.34"
(59.44mm)
108th Driest
Driest since:
1918
20th Wettest
Wettest since:
2016
Oct 1985–Mar 1987
18-Month
46.73"
(1,186.94mm)
43.68"
(1,109.47mm)
3.05"
(77.47mm)
105th Driest
Driest since:
1918
22nd Wettest
Wettest since:
2020
Apr 1985–Mar 1987
24-Month
62.52"
(1,588.01mm)
59.92"
(1,521.97mm)
2.60"
(66.04mm)
94th Driest
Driest since:
1955
33rd Wettest
Wettest since:
2020
Apr 1984–Mar 1987
36-Month
93.71"
(2,380.23mm)
89.87"
(2,282.70mm)
3.84"
(97.53mm)
96th Driest
Driest since:
1955
30th Wettest
Wettest since:
2020
Apr 1983–Mar 1987
48-Month
126.22"
(3,205.99mm)
119.76"
(3,041.90mm)
6.46"
(164.09mm)
105th Driest
Driest since:
1957
20th Wettest
Wettest since:
2019
Apr 1982–Mar 1987
60-Month
160.96"
(4,088.38mm)
149.62"
(3,800.35mm)
11.34"
(288.03mm)
116th Driest
Driest since:
1957
8th Wettest
Wettest to Date
2020

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