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 August 2019. For more information, please see Climatological Rankings.


Contiguous U.S.

Precipitation Rankings, May 2010

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 2010
1-Month
3.32"
(84.33mm)
2.91"
(73.91mm)
0.41"
(10.42mm)
101st Driest Driest since: 2009 1934
25th Wettest Wettest since: 2004 2019
Ties: 1996
Apr–May 2010
2-Month
5.70"
(144.78mm)
5.43"
(137.92mm)
0.27"
(6.86mm)
80th Driest Driest since: 2008 1934
46th Wettest Wettest since: 2009 1957
Mar–May 2010
3-Month
8.00"
(203.20mm)
7.94"
(201.68mm)
0.06"
(1.52mm)
68th Driest Driest since: 2007 1925
58th Wettest Wettest since: 2009 1957, 1991
Feb–May 2010
4-Month
10.01"
(254.25mm)
10.07"
(255.78mm)
-0.06"
(-1.53mm)
67th Driest Driest since: 2007 1925
59th Wettest Wettest since: 2009 2019
Ties: 1896, 1996
Jan–May 2010
5-Month
12.63"
(320.80mm)
12.39"
(314.71mm)
0.24"
(6.09mm)
74th Driest Driest since: 2009 1934
52nd Wettest Wettest since: 2008 2019
Dec 2009–May 2010
6-Month
15.71"
(399.03mm)
14.73"
(374.14mm)
0.98"
(24.89mm)
94th Driest Driest since: 2009 1931
31st Wettest Wettest since: 2008 2019
Ties: 2008
Nov 2009–May 2010
7-Month
17.34"
(440.44mm)
16.96"
(430.78mm)
0.38"
(9.66mm)
75th Driest Driest since: 2009 1934
50th Wettest Wettest since: 2005 1983
Oct 2009–May 2010
8-Month
21.63"
(549.40mm)
19.13"
(485.90mm)
2.50"
(63.50mm)
112th Driest Driest since: 2009 1934
13th Wettest Wettest since: 1998 2019
Sep 2009–May 2010
9-Month
24.17"
(613.92mm)
21.62"
(549.15mm)
2.55"
(64.77mm)
112th Driest Driest since: 2009 1934
13th Wettest Wettest since: 1998 2019
Aug 2009–May 2010
10-Month
26.86"
(682.24mm)
24.25"
(615.95mm)
2.61"
(66.29mm)
110th Driest Driest since: 2009 1918
15th Wettest Wettest since: 1998 2019
Jul 2009–May 2010
11-Month
29.93"
(760.22mm)
27.03"
(686.56mm)
2.90"
(73.66mm)
112th Driest Driest since: 2009 1931
13th Wettest Wettest since: 1998 2019
Jun 2009–May 2010
12-Month
32.94"
(836.68mm)
29.95"
(760.73mm)
2.99"
(75.95mm)
110th Driest Driest since: 2009 1934
15th Wettest Wettest since: 2005 2019
Dec 2008–May 2010
18-Month
47.77"
(1,213.36mm)
44.70"
(1,135.38mm)
3.07"
(77.98mm)
103rd Driest Driest since: 2009 1931
21st Wettest Wettest since: 2005 2019
Ties: 1946
Jun 2008–May 2010
24-Month
63.43"
(1,611.12mm)
59.92"
(1,521.97mm)
3.51"
(89.15mm)
101st Driest Driest since: 2009 1931
23rd Wettest Wettest since: 2005 1974
Jun 2007–May 2010
36-Month
93.82"
(2,383.03mm)
89.88"
(2,282.95mm)
3.94"
(100.08mm)
97th Driest Driest since: 2009 1955
26th Wettest Wettest since: 2005 2019
Jun 2006–May 2010
48-Month
123.90"
(3,147.06mm)
119.78"
(3,042.41mm)
4.12"
(104.65mm)
97th Driest Driest since: 2009 1956
25th Wettest Wettest since: 2000 2019
Jun 2005–May 2010
60-Month
152.82"
(3,881.63mm)
149.64"
(3,800.86mm)
3.18"
(80.77mm)
80th Driest Driest since: 2006 1957
41st Wettest Wettest since: 2009 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published September 2019, retrieved on September 16, 2019 from https://www.ncdc.noaa.gov/cag/