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 2020. For more information, please see Climatological Rankings.


Contiguous U.S.

Precipitation Rankings, August 2009

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
August 2009
1-Month
2.69"
(68.33mm)
2.62"
(66.55mm)
0.07"
(1.78mm)
75th Driest Driest since: 2007 1929
52nd Wettest Wettest since: 2008 1977
Ties: 1904
Jul–Aug 2009
2-Month
5.76"
(146.30mm)
5.40"
(137.16mm)
0.36"
(9.14mm)
98th Driest Driest since: 2007 1930
29th Wettest Wettest since: 2008 1915
Jun–Aug 2009
3-Month
8.77"
(222.76mm)
8.32"
(211.33mm)
0.45"
(11.43mm)
90th Driest Driest since: 2007 1930
37th Wettest Wettest since: 2008 1928
Ties: 1949, 1965, 1968
May–Aug 2009
4-Month
12.08"
(306.83mm)
11.23"
(285.24mm)
0.85"
(21.59mm)
100th Driest Driest since: 2008 1936
27th Wettest Wettest since: 2004 1915
Apr–Aug 2009
5-Month
14.91"
(378.71mm)
13.75"
(349.25mm)
1.16"
(29.46mm)
100th Driest Driest since: 2008 1934
27th Wettest Wettest since: 2004 2019
Mar–Aug 2009
6-Month
17.61"
(447.29mm)
16.26"
(413.00mm)
1.35"
(34.29mm)
104th Driest Driest since: 2008 1936
23rd Wettest Wettest since: 1995 1905
Ties: 1944
Feb–Aug 2009
7-Month
19.16"
(486.66mm)
18.40"
(467.36mm)
0.76"
(19.30mm)
79th Driest Driest since: 2007 1934
48th Wettest Wettest since: 2008 2019
Jan–Aug 2009
8-Month
20.76"
(527.30mm)
20.71"
(526.03mm)
0.05"
(1.27mm)
59th Driest Driest since: 2007 1934
68th Wettest Wettest since: 2008 2019
Ties: 1898
Dec 2008–Aug 2009
9-Month
23.60"
(599.44mm)
23.05"
(585.47mm)
0.55"
(13.97mm)
73rd Driest Driest since: 2007 1931
53rd Wettest Wettest since: 2008 2019
Nov 2008–Aug 2009
10-Month
25.55"
(648.97mm)
25.28"
(642.11mm)
0.27"
(6.86mm)
65th Driest Driest since: 2007 1934
61st Wettest Wettest since: 2008 2019
Oct 2008–Aug 2009
11-Month
27.73"
(704.34mm)
27.45"
(697.23mm)
0.28"
(7.11mm)
65th Driest Driest since: 2006 1934
61st Wettest Wettest since: 2008 2019
Ties: 1965
Sep 2008–Aug 2009
12-Month
30.41"
(772.41mm)
29.94"
(760.48mm)
0.47"
(11.93mm)
65th Driest Driest since: 2006 1934
61st Wettest Wettest since: 2008 2019
Mar 2008–Aug 2009
18-Month
47.32"
(1,201.93mm)
46.22"
(1,173.99mm)
1.10"
(27.94mm)
78th Driest Driest since: 2008 1931
48th Wettest Wettest since: 2005 2019
Sep 2007–Aug 2009
24-Month
61.26"
(1,556.00mm)
59.92"
(1,521.97mm)
1.34"
(34.03mm)
76th Driest Driest since: 2007 1918
49th Wettest Wettest since: 2008 2020
Sep 2006–Aug 2009
36-Month
91.91"
(2,334.51mm)
89.86"
(2,282.44mm)
2.05"
(52.07mm)
80th Driest Driest since: 2008 1956
44th Wettest Wettest since: 2006 2019
Sep 2005–Aug 2009
48-Month
119.82"
(3,043.43mm)
119.77"
(3,042.16mm)
0.05"
(1.27mm)
59th Driest Driest since: 2004 1956
64th Wettest Wettest since: 2008 2019
Sep 2004–Aug 2009
60-Month
152.46"
(3,872.48mm)
149.64"
(3,800.86mm)
2.82"
(71.62mm)
78th Driest Driest since: 2006 1934
44th Wettest Wettest since: 2008 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published September 2020, retrieved on October 1, 2020 from https://www.ncdc.noaa.gov/cag/