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 December 2021. For more information, please see Climatological Rankings.


Delaware

Precipitation Rankings, September 2009

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 2009
1-Month
5.18"
(131.57mm)
3.60"
(91.44mm)
1.58"
(40.13mm)
104th Driest Driest since: 2008 1941
24th Wettest Wettest since: 2006 1935
Aug–Sep 2009
2-Month
13.41"
(340.61mm)
8.19"
(208.03mm)
5.22"
(132.58mm)
121st Driest Driest since: 2008 2005
7th Wettest Wettest since: 1999 1928
Jul–Sep 2009
3-Month
15.96"
(405.38mm)
12.51"
(317.75mm)
3.45"
(87.63mm)
100th Driest Driest since: 2008 1968
28th Wettest Wettest since: 2004 1938
Jun–Sep 2009
4-Month
21.56"
(547.62mm)
16.14"
(409.96mm)
5.42"
(137.66mm)
111th Driest Driest since: 2008 1968
17th Wettest Wettest since: 2006 1938
May–Sep 2009
5-Month
26.57"
(674.88mm)
19.70"
(500.38mm)
6.87"
(174.50mm)
112th Driest Driest since: 2008 1964
16th Wettest Wettest since: 2003 1989
Apr–Sep 2009
6-Month
31.87"
(809.50mm)
23.18"
(588.77mm)
8.69"
(220.73mm)
120th Driest Driest since: 2008 1986
8th Wettest Wettest since: 1996 1989
Mar–Sep 2009
7-Month
34.23"
(869.44mm)
27.16"
(689.86mm)
7.07"
(179.58mm)
113th Driest Driest since: 2008 1986
15th Wettest Wettest since: 2003 1989
Feb–Sep 2009
8-Month
34.67"
(880.62mm)
30.20"
(767.08mm)
4.47"
(113.54mm)
99th Driest Driest since: 2008 1930
29th Wettest Wettest since: 2003 1989
Jan–Sep 2009
9-Month
37.03"
(940.56mm)
33.69"
(855.73mm)
3.34"
(84.83mm)
94th Driest Driest since: 2008 1930
34th Wettest Wettest since: 2003 1989
Dec 2008–Sep 2009
10-Month
42.28"
(1,073.91mm)
37.15"
(943.61mm)
5.13"
(130.30mm)
99th Driest Driest since: 2008 1986
28th Wettest Wettest since: 2003 1958
Nov 2008–Sep 2009
11-Month
47.01"
(1,194.05mm)
40.22"
(1,021.59mm)
6.79"
(172.46mm)
108th Driest Driest since: 2008 1930
19th Wettest Wettest since: 2003 1958
Oct 2008–Sep 2009
12-Month
48.84"
(1,240.54mm)
43.37"
(1,101.60mm)
5.47"
(138.94mm)
96th Driest Driest since: 2008 1986
31st Wettest Wettest since: 2006 2003
Apr 2008–Sep 2009
18-Month
71.04"
(1,804.42mm)
66.48"
(1,688.59mm)
4.56"
(115.83mm)
83rd Driest Driest since: 2008 1966
44th Wettest Wettest since: 2004 2010
Oct 2007–Sep 2009
24-Month
90.55"
(2,299.97mm)
86.63"
(2,200.40mm)
3.92"
(99.57mm)
73rd Driest Driest since: 2008 1966
53rd Wettest Wettest since: 2005 2004
Ties: 2001
Oct 2006–Sep 2009
36-Month
131.15"
(3,331.21mm)
129.92"
(3,299.97mm)
1.23"
(31.24mm)
60th Driest Driest since: 2007 1966
65th Wettest Wettest since: 2008 1935
Oct 2005–Sep 2009
48-Month
180.04"
(4,573.02mm)
173.15"
(4,398.01mm)
6.89"
(175.01mm)
78th Driest Driest since: 2008 1966
46th Wettest Wettest since: 2007 1936
Oct 2004–Sep 2009
60-Month
220.94"
(5,611.88mm)
216.34"
(5,495.04mm)
4.60"
(116.84mm)
69th Driest Driest since: 2002 1966
54th Wettest Wettest since: 2008 1937

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2022, retrieved on January 28, 2022 from https://www.ncdc.noaa.gov/cag/