Statewide Rankings

Statewide Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Delaware

Precipitation Rankings, May 2019

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
May 2019
1-Month
4.48"
(113.79mm)
3.56"
(90.42mm)
0.92"
(23.37mm)
94th Driest
Driest since:
1964
35th Wettest
Wettest since:
1948
Apr–May 2019
2-Month
8.05"
(204.47mm)
7.04"
(178.82mm)
1.01"
(25.65mm)
90th Driest
Driest since:
1942
39th Wettest
Wettest since:
1948
Ties: 1971, 1975
Mar–May 2019
3-Month
11.64"
(295.66mm)
11.01"
(279.65mm)
0.63"
(16.01mm)
86th Driest
Driest since:
1986
43rd Wettest
Wettest since:
1983
Ties: 1909
Feb–May 2019
4-Month
15.11"
(383.79mm)
14.06"
(357.12mm)
1.05"
(26.67mm)
89th Driest
Driest since:
2006
40th Wettest
Wettest since:
1983
Jan–May 2019
5-Month
18.56"
(471.42mm)
17.55"
(445.77mm)
1.01"
(25.65mm)
88th Driest
Driest since:
2012
41st Wettest
Wettest since:
1948
Dec 2018–May 2019
6-Month
23.38"
(593.85mm)
21.01"
(533.65mm)
2.37"
(60.20mm)
95th Driest
Driest since:
1986
33rd Wettest
Wettest since:
1984
Ties: 1987
Nov 2018–May 2019
7-Month
30.23"
(767.84mm)
24.08"
(611.63mm)
6.15"
(156.21mm)
116th Driest
Driest since:
1977
12th Wettest
Wettest since:
1984
Oct 2018–May 2019
8-Month
35.27"
(895.86mm)
27.23"
(691.64mm)
8.04"
(204.22mm)
117th Driest
Driest since:
2002
11th Wettest
Wettest since:
1984
Sep 2018–May 2019
9-Month
41.88"
(1,063.75mm)
30.82"
(782.83mm)
11.06"
(280.92mm)
123rd Driest
Driest since:
2002
5th Wettest
Wettest since:
1984
Aug 2018–May 2019
10-Month
46.41"
(1,178.81mm)
35.41"
(899.41mm)
11.00"
(279.40mm)
123rd Driest
Driest since:
1985
5th Wettest
Wettest since:
2010
Jul 2018–May 2019
11-Month
52.18"
(1,325.37mm)
39.69"
(1,008.13mm)
12.49"
(317.24mm)
126th Driest
Driest since:
1931
2nd Wettest
Wettest to Date
2021
Jun 2018–May 2019
12-Month
56.15"
(1,426.21mm)
43.32"
(1,100.33mm)
12.83"
(325.88mm)
125th Driest
Driest since:
1965
3rd Wettest
Wettest since:
2010
Dec 2017–May 2019
18-Month
79.63"
(2,022.60mm)
64.29"
(1,632.97mm)
15.34"
(389.63mm)
124th Driest
Driest since:
1931
3rd Wettest
Wettest since:
1949
Jun 2017–May 2019
24-Month
106.10"
(2,694.94mm)
86.54"
(2,198.12mm)
19.56"
(496.82mm)
126th Driest
Driest since:
1931
1st Wettest
Wettest to Date
2019
Jun 2016–May 2019
36-Month
151.98"
(3,860.29mm)
129.85"
(3,298.19mm)
22.13"
(562.10mm)
122nd Driest
Driest since:
1967
4th Wettest
Wettest since:
2005
Jun 2015–May 2019
48-Month
198.61"
(5,044.69mm)
173.12"
(4,397.25mm)
25.49"
(647.44mm)
121st Driest
Driest since:
1966
4th Wettest
Wettest since:
1939
Jun 2014–May 2019
60-Month
241.09"
(6,123.69mm)
216.25"
(5,492.75mm)
24.84"
(630.94mm)
115th Driest
Driest since:
1967
9th Wettest
Wettest since:
1939

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