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 July 2020. For more information, please see Climatological Rankings.


Contiguous U.S.

Precipitation Rankings, May 2012

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
May 2012
1-Month
2.50"
(63.50mm)
2.91"
(73.91mm)
-0.41"
(-10.41mm)
25th Driest Driest since: 2006 1934
102nd Wettest Wettest since: 2011 2019
Apr–May 2012
2-Month
4.73"
(120.14mm)
5.43"
(137.92mm)
-0.70"
(-17.78mm)
21st Driest Driest since: 1992 1934
106th Wettest Wettest since: 2011 1957
Ties: 1966
Mar–May 2012
3-Month
7.60"
(193.04mm)
7.94"
(201.68mm)
-0.34"
(-8.64mm)
48th Driest Driest since: 2007 1925
79th Wettest Wettest since: 2011 1957, 1991
Feb–May 2012
4-Month
9.45"
(240.03mm)
10.07"
(255.78mm)
-0.62"
(-15.75mm)
34th Driest Driest since: 2007 1925
93rd Wettest Wettest since: 2011 2019
Ties: 1913
Jan–May 2012
5-Month
11.54"
(293.12mm)
12.39"
(314.71mm)
-0.85"
(-21.59mm)
30th Driest Driest since: 2007 1934
97th Wettest Wettest since: 2011 2019
Dec 2011–May 2012
6-Month
13.80"
(350.52mm)
14.73"
(374.14mm)
-0.93"
(-23.62mm)
34th Driest Driest since: 2006 1931
92nd Wettest Wettest since: 2011 2019
Nov 2011–May 2012
7-Month
16.27"
(413.26mm)
16.96"
(430.78mm)
-0.69"
(-17.52mm)
43rd Driest Driest since: 2006 1934
83rd Wettest Wettest since: 2011 1983
Ties: 1968
Oct 2011–May 2012
8-Month
18.41"
(467.61mm)
19.13"
(485.90mm)
-0.72"
(-18.29mm)
39th Driest Driest since: 2006 1934
87th Wettest Wettest since: 2011 2019
Sep 2011–May 2012
9-Month
20.89"
(530.61mm)
21.62"
(549.15mm)
-0.73"
(-18.54mm)
43rd Driest Driest since: 2006 1934
83rd Wettest Wettest since: 2011 2019
Aug 2011–May 2012
10-Month
23.23"
(590.04mm)
24.25"
(615.95mm)
-1.02"
(-25.91mm)
37th Driest Driest since: 2006 1918
89th Wettest Wettest since: 2011 2019
Jul 2011–May 2012
11-Month
25.67"
(652.02mm)
27.03"
(686.56mm)
-1.36"
(-34.54mm)
31st Driest Driest since: 2002 1931
95th Wettest Wettest since: 2011 2019
Jun 2011–May 2012
12-Month
28.25"
(717.55mm)
29.95"
(760.73mm)
-1.70"
(-43.18mm)
27th Driest Driest since: 2001 1934
99th Wettest Wettest since: 2011 2019
Dec 2010–May 2012
18-Month
44.09"
(1,119.89mm)
44.70"
(1,135.38mm)
-0.61"
(-15.49mm)
50th Driest Driest since: 2007 1931
75th Wettest Wettest since: 2011 2019
Jun 2010–May 2012
24-Month
60.38"
(1,533.65mm)
59.92"
(1,521.97mm)
0.46"
(11.68mm)
65th Driest Driest since: 2007 1931
60th Wettest Wettest since: 2011 2020
Jun 2009–May 2012
36-Month
93.32"
(2,370.33mm)
89.88"
(2,282.95mm)
3.44"
(87.38mm)
95th Driest Driest since: 2009 1955
29th Wettest Wettest since: 2011 2019
Jun 2008–May 2012
48-Month
123.81"
(3,144.77mm)
119.78"
(3,042.41mm)
4.03"
(102.36mm)
96th Driest Driest since: 2009 1956
27th Wettest Wettest since: 2011 2019
Jun 2007–May 2012
60-Month
154.20"
(3,916.68mm)
149.64"
(3,800.86mm)
4.56"
(115.82mm)
93rd Driest Driest since: 2010 1957
29th Wettest Wettest since: 2011 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published August 2020, retrieved on August 14, 2020 from https://www.ncdc.noaa.gov/cag/