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 September 2019. For more information, please see Climatological Rankings.


Delaware

Precipitation Rankings, May 2009

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 2009
1-Month
5.01"
(127.25mm)
3.56"
(90.42mm)
1.45"
(36.83mm)
104th Driest Driest since: 2007 1964
22nd Wettest Wettest since: 2008 1948
Apr–May 2009
2-Month
10.31"
(261.87mm)
7.04"
(178.82mm)
3.27"
(83.05mm)
116th Driest Driest since: 2008 1942
10th Wettest Wettest since: 1996 1948
Mar–May 2009
3-Month
12.67"
(321.82mm)
11.01"
(279.65mm)
1.66"
(42.17mm)
96th Driest Driest since: 2008 1986
30th Wettest Wettest since: 2000 1983
Feb–May 2009
4-Month
13.11"
(332.99mm)
14.06"
(357.12mm)
-0.95"
(-24.13mm)
52nd Driest Driest since: 2007 2006
74th Wettest Wettest since: 2008 1983
Ties: 1962
Jan–May 2009
5-Month
15.47"
(392.94mm)
17.55"
(445.77mm)
-2.08"
(-52.83mm)
41st Driest Driest since: 2006 2012
85th Wettest Wettest since: 2008 1948
Dec 2008–May 2009
6-Month
20.72"
(526.29mm)
21.01"
(533.65mm)
-0.29"
(-7.36mm)
62nd Driest Driest since: 2007 1986
63rd Wettest Wettest since: 2008 1984
Nov 2008–May 2009
7-Month
25.45"
(646.43mm)
24.08"
(611.63mm)
1.37"
(34.80mm)
82nd Driest Driest since: 2008 1977
43rd Wettest Wettest since: 2005 1984
Oct 2008–May 2009
8-Month
27.28"
(692.91mm)
27.23"
(691.64mm)
0.05"
(1.27mm)
66th Driest Driest since: 2006 2002
59th Wettest Wettest since: 2008 1984
Sep 2008–May 2009
9-Month
31.66"
(804.16mm)
30.82"
(782.83mm)
0.84"
(21.33mm)
77th Driest Driest since: 2008 2002
48th Wettest Wettest since: 2007 1984
Aug 2008–May 2009
10-Month
32.68"
(830.07mm)
35.40"
(899.16mm)
-2.72"
(-69.09mm)
42nd Driest Driest since: 2006 1985
83rd Wettest Wettest since: 2008 2010
Jul 2008–May 2009
11-Month
37.19"
(944.63mm)
39.69"
(1,008.13mm)
-2.50"
(-63.50mm)
47th Driest Driest since: 2008 1931
78th Wettest Wettest since: 2007 2019
Jun 2008–May 2009
12-Month
40.59"
(1,030.99mm)
43.32"
(1,100.33mm)
-2.73"
(-69.34mm)
45th Driest Driest since: 2008 1965
80th Wettest Wettest since: 2007 2010
Dec 2007–May 2009
18-Month
62.68"
(1,592.07mm)
64.29"
(1,632.97mm)
-1.61"
(-40.90mm)
53rd Driest Driest since: 2008 1931
71st Wettest Wettest since: 2007 1949
Jun 2007–May 2009
24-Month
79.56"
(2,020.82mm)
86.54"
(2,198.12mm)
-6.98"
(-177.30mm)
28th Driest Driest since: 1992 1931
96th Wettest Wettest since: 2008 2019
Jun 2006–May 2009
36-Month
132.51"
(3,365.75mm)
129.85"
(3,298.19mm)
2.66"
(67.56mm)
64th Driest Driest since: 2008 1967
59th Wettest Wettest since: 2007 2005
Jun 2005–May 2009
48-Month
171.00"
(4,343.40mm)
173.12"
(4,397.25mm)
-2.12"
(-53.85mm)
45th Driest Driest since: 2002 1966
77th Wettest Wettest since: 2008 1939
Jun 2004–May 2009
60-Month
218.95"
(5,561.33mm)
216.25"
(5,492.75mm)
2.70"
(68.58mm)
61st Driest Driest since: 2003 1967
60th Wettest Wettest since: 2008 1939

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 22, 2019 from https://www.ncdc.noaa.gov/cag/