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 2011

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
March 2011
1-Month
2.91"
(73.91mm)
2.51"
(63.75mm)
0.40"
(10.16mm)
105th Driest
Driest since:
1910
24th Wettest
Wettest since:
1973
Ties: 1989
Feb–Mar 2011
2-Month
4.89"
(124.21mm)
4.64"
(117.86mm)
0.25"
(6.35mm)
90th Driest
Driest since:
1910
39th Wettest
Wettest since:
1998
Ties: 1913
Jan–Mar 2011
3-Month
6.54"
(166.12mm)
6.96"
(176.78mm)
-0.42"
(-10.66mm)
45th Driest
Driest since:
1910
84th Wettest
Wettest since:
1998
Ties: 1900
Dec 2010–Mar 2011
4-Month
8.99"
(228.35mm)
9.30"
(236.22mm)
-0.31"
(-7.87mm)
53rd Driest
Driest since:
1981
75th Wettest
Wettest since:
1983, 1998
Ties: 2013
Nov 2010–Mar 2011
5-Month
11.21"
(284.73mm)
11.53"
(292.86mm)
-0.32"
(-8.13mm)
53rd Driest
Driest since:
1977
75th Wettest
Wettest since:
1983
Ties: 1920, 1939
Oct 2010–Mar 2011
6-Month
13.18"
(334.77mm)
13.70"
(347.98mm)
-0.52"
(-13.21mm)
44th Driest
Driest since:
1918
84th Wettest
Wettest since:
1983
Ties: 1898
Sep 2010–Mar 2011
7-Month
15.96"
(405.38mm)
16.19"
(411.23mm)
-0.23"
(-5.85mm)
55th Driest
Driest since:
1918
73rd Wettest
Wettest since:
2019
Aug 2010–Mar 2011
8-Month
18.47"
(469.14mm)
18.82"
(478.03mm)
-0.35"
(-8.89mm)
48th Driest
Driest since:
1918
80th Wettest
Wettest since:
2019
Ties: 1926
Jul 2010–Mar 2011
9-Month
21.79"
(553.47mm)
21.60"
(548.64mm)
0.19"
(4.83mm)
71st Driest
Driest since:
1918
57th Wettest
Wettest since:
2019
Jun 2010–Mar 2011
10-Month
25.28"
(642.11mm)
24.53"
(623.06mm)
0.75"
(19.05mm)
84th Driest
Driest since:
1918
44th Wettest
Wettest since:
2019
Ties: 1950, 1994
May 2010–Mar 2011
11-Month
28.60"
(726.44mm)
27.43"
(696.72mm)
1.17"
(29.72mm)
87th Driest
Driest since:
1918
41st Wettest
Wettest since:
2019
Apr 2010–Mar 2011
12-Month
30.98"
(786.89mm)
29.96"
(760.98mm)
1.02"
(25.91mm)
81st Driest
Driest since:
1918
47th Wettest
Wettest since:
2016
Oct 2009–Mar 2011
18-Month
46.91"
(1,191.51mm)
43.68"
(1,109.47mm)
3.23"
(82.04mm)
108th Driest
Driest since:
1918
19th Wettest
Wettest since:
2020
Apr 2009–Mar 2011
24-Month
64.36"
(1,634.74mm)
59.92"
(1,521.97mm)
4.44"
(112.77mm)
111th Driest
Driest since:
1955
16th Wettest
Wettest since:
2020
Apr 2008–Mar 2011
36-Month
94.25"
(2,393.95mm)
89.87"
(2,282.70mm)
4.38"
(111.25mm)
103rd Driest
Driest since:
1955
23rd Wettest
Wettest since:
2020
Apr 2007–Mar 2011
48-Month
124.34"
(3,158.24mm)
119.76"
(3,041.90mm)
4.58"
(116.34mm)
99th Driest
Driest since:
1957
26th Wettest
Wettest since:
2019
Apr 2006–Mar 2011
60-Month
154.01"
(3,911.85mm)
149.62"
(3,800.35mm)
4.39"
(111.50mm)
89th Driest
Driest since:
1957
35th Wettest
Wettest since:
2020

Citing This Page