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 July 2020. For more information, please see Climatological Rankings.


Delaware

Precipitation Rankings, May 2019

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
May 2019
1-Month
4.50"
(114.30mm)
3.56"
(90.42mm)
0.94"
(23.88mm)
94th Driest Driest since: 2015 1964
33rd Wettest Wettest since: 2018 1948
Apr–May 2019
2-Month
8.08"
(205.23mm)
7.04"
(178.82mm)
1.04"
(26.41mm)
88th Driest Driest since: 2015 1942
39th Wettest Wettest since: 2018 1948
Mar–May 2019
3-Month
11.71"
(297.43mm)
11.01"
(279.65mm)
0.70"
(17.78mm)
84th Driest Driest since: 2016 1986
43rd Wettest Wettest since: 2018 1983
Feb–May 2019
4-Month
15.16"
(385.06mm)
14.06"
(357.12mm)
1.10"
(27.94mm)
88th Driest Driest since: 2017 2006
39th Wettest Wettest since: 2018 1983
Jan–May 2019
5-Month
18.61"
(472.69mm)
17.55"
(445.77mm)
1.06"
(26.92mm)
87th Driest Driest since: 2017 2012
40th Wettest Wettest since: 2018 1948
Dec 2018–May 2019
6-Month
23.43"
(595.12mm)
21.01"
(533.65mm)
2.42"
(61.47mm)
94th Driest Driest since: 2017 1986
32nd Wettest Wettest since: 2018 1984
Nov 2018–May 2019
7-Month
30.28"
(769.11mm)
24.08"
(611.63mm)
6.20"
(157.48mm)
114th Driest Driest since: 2018 1977
12th Wettest Wettest since: 1998 1984
Oct 2018–May 2019
8-Month
35.32"
(897.13mm)
27.23"
(691.64mm)
8.09"
(205.49mm)
115th Driest Driest since: 2018 2002
11th Wettest Wettest since: 2010 1984
Sep 2018–May 2019
9-Month
41.93"
(1,065.02mm)
30.82"
(782.83mm)
11.11"
(282.19mm)
121st Driest Driest since: 2018 2002
5th Wettest Wettest since: 2003 1984
Aug 2018–May 2019
10-Month
46.46"
(1,180.08mm)
35.41"
(899.41mm)
11.05"
(280.67mm)
122nd Driest Driest since: 2018 1985
4th Wettest Wettest since: 2010 2010
Jul 2018–May 2019
11-Month
52.23"
(1,326.64mm)
39.69"
(1,008.13mm)
12.54"
(318.51mm)
125th Driest Driest since: 2018 1931
1st Wettest Wettest to Date 2019
Jun 2018–May 2019
12-Month
56.20"
(1,427.48mm)
43.32"
(1,100.33mm)
12.88"
(327.15mm)
124th Driest Driest since: 2018 1965
2nd Wettest Wettest since: 2010 2010
Dec 2017–May 2019
18-Month
79.68"
(2,023.87mm)
64.29"
(1,632.97mm)
15.39"
(390.90mm)
122nd Driest Driest since: 2018 1931
3rd Wettest Wettest since: 1984 1949
Jun 2017–May 2019
24-Month
106.15"
(2,696.21mm)
86.54"
(2,198.12mm)
19.61"
(498.09mm)
124th Driest Driest since: 2018 1931
1st Wettest Wettest to Date 2019
Jun 2016–May 2019
36-Month
152.03"
(3,861.56mm)
129.85"
(3,298.19mm)
22.18"
(563.37mm)
121st Driest Driest since: 2018 1967
3rd Wettest Wettest since: 2005 2005
Jun 2015–May 2019
48-Month
198.66"
(5,045.96mm)
173.12"
(4,397.25mm)
25.54"
(648.71mm)
120th Driest Driest since: 2018 1966
3rd Wettest Wettest since: 1939 1939
Jun 2014–May 2019
60-Month
241.14"
(6,124.96mm)
216.25"
(5,492.75mm)
24.89"
(632.21mm)
115th Driest Driest since: 2018 1967
7th Wettest Wettest since: 2007 1939

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published August 2020, retrieved on August 11, 2020 from https://www.ncdc.noaa.gov/cag/