Climate at a Glance

National Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of June 2021. For more information, please see Climatological Rankings.


Contiguous U.S.

Precipitation Rankings, May 2009

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
May 2009
1-Month
3.31"
(84.07mm)
2.91"
(73.91mm)
0.40"
(10.16mm)
101st Driest Driest since: 2008 1934
27th Wettest Wettest since: 2004 2019
Apr–May 2009
2-Month
6.14"
(155.96mm)
5.43"
(137.92mm)
0.71"
(18.04mm)
104th Driest Driest since: 2008 1934
24th Wettest Wettest since: 1995 1957
Mar–May 2009
3-Month
8.84"
(224.54mm)
7.94"
(201.68mm)
0.90"
(22.86mm)
102nd Driest Driest since: 2008 1925
26th Wettest Wettest since: 1995 1957, 1991
Feb–May 2009
4-Month
10.39"
(263.91mm)
10.07"
(255.78mm)
0.32"
(8.13mm)
81st Driest Driest since: 2007 1925
47th Wettest Wettest since: 2008 2019
Jan–May 2009
5-Month
11.99"
(304.55mm)
12.39"
(314.71mm)
-0.40"
(-10.16mm)
52nd Driest Driest since: 2007 1934
76th Wettest Wettest since: 2008 2019
Ties: 1960
Dec 2008–May 2009
6-Month
14.83"
(376.68mm)
14.73"
(374.14mm)
0.10"
(2.54mm)
65th Driest Driest since: 2007 1931
62nd Wettest Wettest since: 2008 2019
Nov 2008–May 2009
7-Month
16.78"
(426.21mm)
16.96"
(430.78mm)
-0.18"
(-4.57mm)
60th Driest Driest since: 2007 1934
67th Wettest Wettest since: 2008 1983
Oct 2008–May 2009
8-Month
18.96"
(481.58mm)
19.13"
(485.90mm)
-0.17"
(-4.32mm)
57th Driest Driest since: 2006 1934
70th Wettest Wettest since: 2008 2019
Ties: 1965
Sep 2008–May 2009
9-Month
21.64"
(549.66mm)
21.62"
(549.15mm)
0.02"
(0.51mm)
63rd Driest Driest since: 2006 1934
64th Wettest Wettest since: 2008 2019
Aug 2008–May 2009
10-Month
24.69"
(627.13mm)
24.25"
(615.95mm)
0.44"
(11.18mm)
70th Driest Driest since: 2008 1918
57th Wettest Wettest since: 2007 2019
Jul 2008–May 2009
11-Month
27.49"
(698.25mm)
27.03"
(686.56mm)
0.46"
(11.69mm)
72nd Driest Driest since: 2008 1931
55th Wettest Wettest since: 2007 2019
Jun 2008–May 2009
12-Month
30.49"
(774.45mm)
29.95"
(760.73mm)
0.54"
(13.72mm)
74th Driest Driest since: 2008 1934
53rd Wettest Wettest since: 2005 2019
Dec 2007–May 2009
18-Month
46.20"
(1,173.48mm)
44.70"
(1,135.38mm)
1.50"
(38.10mm)
89th Driest Driest since: 2008 1931
37th Wettest Wettest since: 2005 2019
Jun 2007–May 2009
24-Month
60.88"
(1,546.35mm)
59.92"
(1,521.97mm)
0.96"
(24.38mm)
72nd Driest Driest since: 2008 1931
54th Wettest Wettest since: 2006 2020
Jun 2006–May 2009
36-Month
90.96"
(2,310.38mm)
89.88"
(2,282.95mm)
1.08"
(27.43mm)
73rd Driest Driest since: 2008 1955
52nd Wettest Wettest since: 2007 2019
Ties: 1951
Jun 2005–May 2009
48-Month
119.88"
(3,044.95mm)
119.78"
(3,042.41mm)
0.10"
(2.54mm)
58th Driest Driest since: 2004 1956
66th Wettest Wettest since: 2008 2019
Jun 2004–May 2009
60-Month
153.29"
(3,893.57mm)
149.64"
(3,800.86mm)
3.65"
(92.71mm)
85th Driest Driest since: 2006 1957
38th Wettest Wettest since: 2008 2020
Ties: 1910

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published July 2021, retrieved on August 5, 2021 from https://www.ncdc.noaa.gov/cag/