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 2022. 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
(1895-2022)
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
104th 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
108th Wettest Wettest since: 2011 1957
Ties: 1966
Mar–May 2012
3-Month
7.60"
(193.04mm)
7.94"
(201.68mm)
-0.34"
(-8.64mm)
49th Driest Driest since: 2007 1925
80th 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
95th Wettest Wettest since: 2011 2019
Ties: 1913
Jan–May 2012
5-Month
11.54"
(293.12mm)
12.39"
(314.71mm)
-0.85"
(-21.59mm)
31st Driest Driest since: 2007 1934
98th Wettest Wettest since: 2011 2019
Dec 2011–May 2012
6-Month
13.80"
(350.52mm)
14.73"
(374.14mm)
-0.93"
(-23.62mm)
35th Driest Driest since: 2006 1931
93rd Wettest Wettest since: 2011 2019
Nov 2011–May 2012
7-Month
16.27"
(413.26mm)
16.96"
(430.78mm)
-0.69"
(-17.52mm)
45th 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)
41st 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)
45th 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)
38th Driest Driest since: 2006 1918
90th 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
97th Wettest Wettest since: 2011 2019
Ties: 2021
Jun 2011–May 2012
12-Month
28.25"
(717.55mm)
29.95"
(760.73mm)
-1.70"
(-43.18mm)
27th Driest Driest since: 2001 1934
101st 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)
51st Driest Driest since: 2007 1931
76th 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)
66th Driest Driest since: 2007 1931
61st 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)
96th Driest Driest since: 2009 1955
30th 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
29th 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
31st Wettest Wettest since: 2011 2020

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, Precipitation, published September 2022, retrieved on October 7, 2022 from https://www.ncdc.noaa.gov/cag/