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, February 2010

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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2023)
Wettest/Driest
Since
Record
February 2010
1-Month
2.01"
(51.05mm)
2.13"
(54.10mm)
-0.12"
(-3.05mm)
54th Driest
Driest since:
1947
76th Wettest
Wettest since:
1998
Ties: 1989
Jan–Feb 2010
2-Month
4.63"
(117.60mm)
4.45"
(113.03mm)
0.18"
(4.57mm)
87th Driest
Driest since:
1977
43rd Wettest
Wettest since:
1998
Ties: 1908
Dec 2009–Feb 2010
3-Month
7.71"
(195.83mm)
6.79"
(172.47mm)
0.92"
(23.36mm)
109th Driest
Driest since:
1977
20th Wettest
Wettest since:
2019
Nov 2009–Feb 2010
4-Month
9.34"
(237.24mm)
9.02"
(229.11mm)
0.32"
(8.13mm)
86th Driest
Driest since:
1977
43rd Wettest
Wettest since:
2019
Oct 2009–Feb 2010
5-Month
13.63"
(346.20mm)
11.19"
(284.23mm)
2.44"
(61.97mm)
123rd Driest
Driest since:
1977
6th Wettest
Wettest since:
2019
Sep 2009–Feb 2010
6-Month
16.17"
(410.72mm)
13.68"
(347.47mm)
2.49"
(63.25mm)
122nd Driest
Driest since:
1977
7th Wettest
Wettest since:
2019
Aug 2009–Feb 2010
7-Month
18.86"
(479.04mm)
16.31"
(414.27mm)
2.55"
(64.77mm)
121st Driest
Driest since:
1977
8th Wettest
Wettest since:
2019
Jul 2009–Feb 2010
8-Month
21.93"
(557.02mm)
19.09"
(484.89mm)
2.84"
(72.13mm)
121st Driest
Driest since:
1977
8th Wettest
Wettest since:
2019
Jun 2009–Feb 2010
9-Month
24.94"
(633.48mm)
22.02"
(559.31mm)
2.92"
(74.17mm)
119th Driest
Driest since:
1918, 1931, 1977
10th Wettest
Wettest since:
2019
May 2009–Feb 2010
10-Month
28.25"
(717.55mm)
24.92"
(632.97mm)
3.33"
(84.58mm)
121st Driest
Driest since:
1918
8th Wettest
Wettest since:
2019
Apr 2009–Feb 2010
11-Month
31.08"
(789.43mm)
27.45"
(697.23mm)
3.63"
(92.20mm)
120th Driest
Driest since:
1931
9th Wettest
Wettest since:
2019
Mar 2009–Feb 2010
12-Month
33.78"
(858.01mm)
29.96"
(760.98mm)
3.82"
(97.03mm)
122nd Driest
Driest since:
1931
7th Wettest
Wettest since:
2019
Sep 2008–Feb 2010
18-Month
46.58"
(1,183.13mm)
43.65"
(1,108.71mm)
2.93"
(74.42mm)
106th Driest
Driest since:
1918
22nd Wettest
Wettest since:
2020
Mar 2008–Feb 2010
24-Month
63.49"
(1,612.65mm)
59.92"
(1,521.97mm)
3.57"
(90.68mm)
102nd Driest
Driest since:
1935
26th Wettest
Wettest since:
2020
Mar 2007–Feb 2010
36-Month
93.37"
(2,371.60mm)
89.87"
(2,282.70mm)
3.50"
(88.90mm)
94th Driest
Driest since:
1957
33rd Wettest
Wettest since:
2020
Mar 2006–Feb 2010
48-Month
123.04"
(3,125.22mm)
119.77"
(3,042.16mm)
3.27"
(83.06mm)
89th Driest
Driest since:
1957
37th Wettest
Wettest since:
2019
Mar 2005–Feb 2010
60-Month
152.49"
(3,873.25mm)
149.63"
(3,800.60mm)
2.86"
(72.65mm)
78th Driest
Driest since:
1957
47th Wettest
Wettest since:
2020

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