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 2017

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 2017
1-Month
5.68"
(144.27mm)
3.56"
(90.42mm)
2.12"
(53.85mm)
113th Driest Driest since: 2015 1964
13th Wettest Wettest since: 2016 1948
Apr–May 2017
2-Month
8.31"
(211.07mm)
7.04"
(178.82mm)
1.27"
(32.25mm)
93rd Driest Driest since: 2015 1942
33rd Wettest Wettest since: 2016 1948
Ties: 1946
Mar–May 2017
3-Month
12.77"
(324.36mm)
11.01"
(279.65mm)
1.76"
(44.71mm)
99th Driest Driest since: 2016 1986
27th Wettest Wettest since: 2000 1983
Feb–May 2017
4-Month
14.01"
(355.85mm)
14.06"
(357.12mm)
-0.05"
(-1.27mm)
65th Driest Driest since: 2015 2006
61st Wettest Wettest since: 2016 1983
Jan–May 2017
5-Month
17.01"
(432.05mm)
17.55"
(445.77mm)
-0.54"
(-13.72mm)
65th Driest Driest since: 2016 2012
61st Wettest Wettest since: 2014 1948
Dec 2016–May 2017
6-Month
19.96"
(506.98mm)
21.01"
(533.65mm)
-1.05"
(-26.67mm)
52nd Driest Driest since: 2013 1986
73rd Wettest Wettest since: 2016 1984
Nov 2016–May 2017
7-Month
20.75"
(527.05mm)
24.08"
(611.63mm)
-3.33"
(-84.58mm)
37th Driest Driest since: 2013 1977
88th Wettest Wettest since: 2016 1984
Ties: 2013
Oct 2016–May 2017
8-Month
23.62"
(599.95mm)
27.23"
(691.64mm)
-3.61"
(-91.69mm)
30th Driest Driest since: 2012 2002
95th Wettest Wettest since: 2016 1984
Sep 2016–May 2017
9-Month
33.60"
(853.44mm)
30.82"
(782.83mm)
2.78"
(70.61mm)
89th Driest Driest since: 2016 2002
36th Wettest Wettest since: 2010 1984
Aug 2016–May 2017
10-Month
36.63"
(930.40mm)
35.40"
(899.16mm)
1.23"
(31.24mm)
73rd Driest Driest since: 2016 1985
52nd Wettest Wettest since: 2014 2010
Jul 2016–May 2017
11-Month
42.16"
(1,070.86mm)
39.69"
(1,008.13mm)
2.47"
(62.73mm)
77th Driest Driest since: 2016 1931
48th Wettest Wettest since: 2014 2019
Jun 2016–May 2017
12-Month
45.88"
(1,165.35mm)
43.32"
(1,100.33mm)
2.56"
(65.02mm)
79th Driest Driest since: 2015 1965
46th Wettest Wettest since: 2016 2010
Dec 2015–May 2017
18-Month
67.30"
(1,709.42mm)
64.29"
(1,632.97mm)
3.01"
(76.45mm)
80th Driest Driest since: 2016 1931
44th Wettest Wettest since: 2014 1949
Jun 2015–May 2017
24-Month
92.51"
(2,349.75mm)
86.54"
(2,198.12mm)
5.97"
(151.63mm)
87th Driest Driest since: 2016 1931
37th Wettest Wettest since: 2015 2019
Jun 2014–May 2017
36-Month
134.99"
(3,428.75mm)
129.85"
(3,298.19mm)
5.14"
(130.56mm)
71st Driest Driest since: 2013 1967
52nd Wettest Wettest since: 2016 2005
Jun 2013–May 2017
48-Month
188.89"
(4,797.81mm)
173.12"
(4,397.25mm)
15.77"
(400.56mm)
108th Driest Driest since: 2016 1966
14th Wettest Wettest since: 2010 1939
Jun 2012–May 2017
60-Month
233.47"
(5,930.14mm)
216.25"
(5,492.75mm)
17.22"
(437.39mm)
108th Driest Driest since: 2016 1967
13th Wettest Wettest since: 2014 1939

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 14, 2019 from https://www.ncdc.noaa.gov/cag/