Climate at a Glance

Statewide 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 January 2021. For more information, please see Climatological Rankings.


Delaware

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
8.23"
(209.04mm)
4.59"
(116.59mm)
3.64"
(92.45mm)
116th Driest Driest since: 2008 2008
11th Wettest Wettest since: 1967 1967
Jul–Aug 2009
2-Month
10.78"
(273.81mm)
8.90"
(226.06mm)
1.88"
(47.75mm)
92nd Driest Driest since: 2008 1966
35th Wettest Wettest since: 2004 1919
Jun–Aug 2009
3-Month
16.38"
(416.05mm)
12.54"
(318.52mm)
3.84"
(97.53mm)
104th Driest Driest since: 2008 1966
23rd Wettest Wettest since: 2003 2013
May–Aug 2009
4-Month
21.39"
(543.31mm)
16.10"
(408.94mm)
5.29"
(134.37mm)
113th Driest Driest since: 2008 1964
14th Wettest Wettest since: 2003 1919
Apr–Aug 2009
5-Month
26.69"
(677.93mm)
19.58"
(497.33mm)
7.11"
(180.60mm)
118th Driest Driest since: 2008 1957
9th Wettest Wettest since: 1996 1919
Mar–Aug 2009
6-Month
29.05"
(737.87mm)
23.55"
(598.17mm)
5.50"
(139.70mm)
111th Driest Driest since: 2008 1930
16th Wettest Wettest since: 2003 1989
Feb–Aug 2009
7-Month
29.49"
(749.05mm)
26.60"
(675.64mm)
2.89"
(73.41mm)
91st Driest Driest since: 2008 1930
36th Wettest Wettest since: 2003 1958
Jan–Aug 2009
8-Month
31.85"
(808.99mm)
30.09"
(764.29mm)
1.76"
(44.70mm)
83rd Driest Driest since: 2008 1930
44th Wettest Wettest since: 2003 1958
Dec 2008–Aug 2009
9-Month
37.10"
(942.34mm)
33.55"
(852.17mm)
3.55"
(90.17mm)
92nd Driest Driest since: 2008 1930
34th Wettest Wettest since: 2004 1958
Nov 2008–Aug 2009
10-Month
41.83"
(1,062.48mm)
36.62"
(930.15mm)
5.21"
(132.33mm)
101st Driest Driest since: 2008 1977
25th Wettest Wettest since: 2004 1958
Oct 2008–Aug 2009
11-Month
43.66"
(1,108.96mm)
39.77"
(1,010.16mm)
3.89"
(98.80mm)
90th Driest Driest since: 2008 1966
36th Wettest Wettest since: 2004 1958
Ties: 1908
Sep 2008–Aug 2009
12-Month
48.04"
(1,220.22mm)
43.36"
(1,101.34mm)
4.68"
(118.88mm)
94th Driest Driest since: 2008 1966
32nd Wettest Wettest since: 2004 1958
Mar 2008–Aug 2009
18-Month
68.94"
(1,751.08mm)
66.82"
(1,697.23mm)
2.12"
(53.85mm)
77th Driest Driest since: 2008 1966
49th Wettest Wettest since: 2005 1984
Sep 2007–Aug 2009
24-Month
86.67"
(2,201.42mm)
86.56"
(2,198.62mm)
0.11"
(2.80mm)
62nd Driest Driest since: 2008 1966
63rd Wettest Wettest since: 2007 2004
Sep 2006–Aug 2009
36-Month
132.57"
(3,367.28mm)
129.84"
(3,297.94mm)
2.73"
(69.34mm)
65th Driest Driest since: 2008 1966
59th Wettest Wettest since: 2007 2005
Sep 2005–Aug 2009
48-Month
175.45"
(4,456.43mm)
173.06"
(4,395.72mm)
2.39"
(60.71mm)
59th Driest Driest since: 2008 1966
64th Wettest Wettest since: 2007 1939
Ties: 1921
Sep 2004–Aug 2009
60-Month
219.54"
(5,576.32mm)
216.24"
(5,492.50mm)
3.30"
(83.82mm)
63rd Driest Driest since: 2002 1966
59th Wettest Wettest since: 2008 1937

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published February 2021, retrieved on March 6, 2021 from https://www.ncdc.noaa.gov/cag/