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 2020. For more information, please see Climatological Rankings.


Delaware

Precipitation Rankings, May 2018

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 2018
1-Month
6.99"
(177.55mm)
3.56"
(90.42mm)
3.43"
(87.13mm)
123rd Driest Driest since: 2017 1964
4th Wettest Wettest since: 1990 1948
Apr–May 2018
2-Month
10.39"
(263.91mm)
7.04"
(178.82mm)
3.35"
(85.09mm)
118th Driest Driest since: 2017 1942
9th Wettest Wettest since: 1996 1948
Mar–May 2018
3-Month
14.48"
(367.79mm)
11.01"
(279.65mm)
3.47"
(88.14mm)
112th Driest Driest since: 2017 1986
15th Wettest Wettest since: 1994 1983
Feb–May 2018
4-Month
19.45"
(494.03mm)
14.06"
(357.12mm)
5.39"
(136.91mm)
119th Driest Driest since: 2017 2006
8th Wettest Wettest since: 1994 1983
Jan–May 2018
5-Month
22.43"
(569.72mm)
17.55"
(445.77mm)
4.88"
(123.95mm)
114th Driest Driest since: 2017 2012
13th Wettest Wettest since: 1998 1948
Dec 2017–May 2018
6-Month
23.48"
(596.39mm)
21.01"
(533.65mm)
2.47"
(62.74mm)
95th Driest Driest since: 2017 1986
31st Wettest Wettest since: 2014 1984
Nov 2017–May 2018
7-Month
25.52"
(648.21mm)
24.08"
(611.63mm)
1.44"
(36.58mm)
84th Driest Driest since: 2017 1977
42nd Wettest Wettest since: 2014 1984
Oct 2017–May 2018
8-Month
29.11"
(739.39mm)
27.23"
(691.64mm)
1.88"
(47.75mm)
90th Driest Driest since: 2017 2002
36th Wettest Wettest since: 2014 1984
Sep 2017–May 2018
9-Month
31.68"
(804.67mm)
30.82"
(782.83mm)
0.86"
(21.84mm)
79th Driest Driest since: 2016 2002
47th Wettest Wettest since: 2017 1984
Aug 2017–May 2018
10-Month
39.59"
(1,005.59mm)
35.41"
(899.41mm)
4.18"
(106.18mm)
95th Driest Driest since: 2017 1985
31st Wettest Wettest since: 2010 2010
Jul 2017–May 2018
11-Month
47.63"
(1,209.80mm)
39.69"
(1,008.13mm)
7.94"
(201.67mm)
113th Driest Driest since: 2017 1931
13th Wettest Wettest since: 2010 2019
Jun 2017–May 2018
12-Month
49.95"
(1,268.73mm)
43.32"
(1,100.33mm)
6.63"
(168.40mm)
104th Driest Driest since: 2017 1965
22nd Wettest Wettest since: 2014 2010
Dec 2016–May 2018
18-Month
69.91"
(1,775.71mm)
64.29"
(1,632.97mm)
5.62"
(142.74mm)
95th Driest Driest since: 2017 1931
30th Wettest Wettest since: 2014 1949
Jun 2016–May 2018
24-Month
95.83"
(2,434.08mm)
86.54"
(2,198.12mm)
9.29"
(235.96mm)
99th Driest Driest since: 2017 1931
26th Wettest Wettest since: 2015 2019
Jun 2015–May 2018
36-Month
142.46"
(3,618.48mm)
129.85"
(3,298.19mm)
12.61"
(320.29mm)
109th Driest Driest since: 2017 1967
15th Wettest Wettest since: 2016 2005
Jun 2014–May 2018
48-Month
184.94"
(4,697.48mm)
173.12"
(4,397.25mm)
11.82"
(300.23mm)
99th Driest Driest since: 2015 1966
24th Wettest Wettest since: 2017 1939
Jun 2013–May 2018
60-Month
238.84"
(6,066.54mm)
216.25"
(5,492.75mm)
22.59"
(573.79mm)
114th Driest Driest since: 2017 1967
8th Wettest Wettest since: 2007 1939

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2021, retrieved on January 20, 2021 from https://www.ncdc.noaa.gov/cag/