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 2015

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 2015
1-Month
1.50"
(38.10mm)
3.56"
(90.42mm)
-2.06"
(-52.32mm)
10th Driest Driest since: 2007 1964
116th Wettest Wettest since: 2014 1948
Apr–May 2015
2-Month
4.63"
(117.60mm)
7.04"
(178.82mm)
-2.41"
(-61.22mm)
20th Driest Driest since: 2010 1942
106th Wettest Wettest since: 2014 1948
Mar–May 2015
3-Month
9.16"
(232.66mm)
11.01"
(279.65mm)
-1.85"
(-46.99mm)
30th Driest Driest since: 2012 1986
96th Wettest Wettest since: 2014 1983
Ties: 1902
Feb–May 2015
4-Month
11.48"
(291.59mm)
14.06"
(357.12mm)
-2.58"
(-65.53mm)
23rd Driest Driest since: 2012 2006
103rd Wettest Wettest since: 2014 1983
Ties: 1991
Jan–May 2015
5-Month
16.44"
(417.58mm)
17.55"
(445.77mm)
-1.11"
(-28.19mm)
52nd Driest Driest since: 2013 2012
74th Wettest Wettest since: 2014 1948
Dec 2014–May 2015
6-Month
20.29"
(515.37mm)
21.01"
(533.65mm)
-0.72"
(-18.28mm)
55th Driest Driest since: 2013 1986
70th Wettest Wettest since: 2014 1984
Ties: 1991
Nov 2014–May 2015
7-Month
24.25"
(615.95mm)
24.08"
(611.63mm)
0.17"
(4.32mm)
69th Driest Driest since: 2013 1977
56th Wettest Wettest since: 2014 1984
Oct 2014–May 2015
8-Month
26.69"
(677.93mm)
27.23"
(691.64mm)
-0.54"
(-13.71mm)
62nd Driest Driest since: 2012 2002
63rd Wettest Wettest since: 2014 1984
Sep 2014–May 2015
9-Month
30.28"
(769.11mm)
30.82"
(782.83mm)
-0.54"
(-13.72mm)
66th Driest Driest since: 2012 2002
59th Wettest Wettest since: 2014 1984
Aug 2014–May 2015
10-Month
34.65"
(880.11mm)
35.41"
(899.41mm)
-0.76"
(-19.30mm)
64th Driest Driest since: 2012 1985
61st Wettest Wettest since: 2014 2010
Ties: 1916
Jul 2014–May 2015
11-Month
39.89"
(1,013.21mm)
39.69"
(1,008.13mm)
0.20"
(5.08mm)
64th Driest Driest since: 2012 1931
61st Wettest Wettest since: 2014 2019
Jun 2014–May 2015
12-Month
42.48"
(1,078.99mm)
43.32"
(1,100.33mm)
-0.84"
(-21.34mm)
54th Driest Driest since: 2012 1965
71st Wettest Wettest since: 2014 2010
Dec 2013–May 2015
18-Month
66.40"
(1,686.56mm)
64.29"
(1,632.97mm)
2.11"
(53.59mm)
74th Driest Driest since: 2013 1931
50th Wettest Wettest since: 2014 1949
Jun 2013–May 2015
24-Month
96.38"
(2,448.05mm)
86.54"
(2,198.12mm)
9.84"
(249.93mm)
101st Driest Driest since: 2013 1931
23rd Wettest Wettest since: 2014 2019
Jun 2012–May 2015
36-Month
140.96"
(3,580.38mm)
129.85"
(3,298.19mm)
11.11"
(282.19mm)
106th Driest Driest since: 2014 1967
17th Wettest Wettest since: 2005 2005
Jun 2011–May 2015
48-Month
180.80"
(4,592.32mm)
173.12"
(4,397.25mm)
7.68"
(195.07mm)
88th Driest Driest since: 2014 1966
34th Wettest Wettest since: 2010 1939
Jun 2010–May 2015
60-Month
219.35"
(5,571.49mm)
216.25"
(5,492.75mm)
3.10"
(78.74mm)
64th Driest Driest since: 2012 1967
57th 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/