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, July 2018

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
July 2018
1-Month
5.77"
(146.56mm)
4.31"
(109.47mm)
1.46"
(37.09mm)
103rd Driest
Driest since:
1974
26th Wettest
Wettest since:
1938
Ties: 1904, 1927
Jun–Jul 2018
2-Month
9.74"
(247.40mm)
7.95"
(201.93mm)
1.79"
(45.47mm)
99th Driest
Driest since:
1949
30th Wettest
Wettest since:
2013
May–Jul 2018
3-Month
16.73"
(424.94mm)
11.50"
(292.10mm)
5.23"
(132.84mm)
120th Driest
Driest since:
1964
9th Wettest
Wettest since:
1989
Apr–Jul 2018
4-Month
20.13"
(511.30mm)
14.98"
(380.49mm)
5.15"
(130.81mm)
119th Driest
Driest since:
1986
10th Wettest
Wettest since:
1989
Mar–Jul 2018
5-Month
24.22"
(615.19mm)
18.96"
(481.58mm)
5.26"
(133.61mm)
116th Driest
Driest since:
1986
13th Wettest
Wettest since:
1989
Feb–Jul 2018
6-Month
29.19"
(741.43mm)
22.01"
(559.05mm)
7.18"
(182.38mm)
122nd Driest
Driest since:
1986
7th Wettest
Wettest since:
1989
Jan–Jul 2018
7-Month
32.17"
(817.12mm)
25.50"
(647.70mm)
6.67"
(169.42mm)
119th Driest
Driest since:
1977
10th Wettest
Wettest since:
1989
Dec 2017–Jul 2018
8-Month
33.22"
(843.79mm)
28.96"
(735.58mm)
4.26"
(108.21mm)
104th Driest
Driest since:
1986
24th Wettest
Wettest since:
1958
Nov 2017–Jul 2018
9-Month
35.26"
(895.60mm)
32.02"
(813.31mm)
3.24"
(82.29mm)
88th Driest
Driest since:
1977
40th Wettest
Wettest since:
1984
Oct 2017–Jul 2018
10-Month
38.85"
(986.79mm)
35.18"
(893.57mm)
3.67"
(93.22mm)
94th Driest
Driest since:
2002
34th Wettest
Wettest since:
2003
Ties: 1919
Sep 2017–Jul 2018
11-Month
41.42"
(1,052.07mm)
38.77"
(984.76mm)
2.65"
(67.31mm)
83rd Driest
Driest since:
2002
45th Wettest
Wettest since:
2003
Aug 2017–Jul 2018
12-Month
49.33"
(1,252.98mm)
43.35"
(1,101.09mm)
5.98"
(151.89mm)
101st Driest
Driest since:
1985
27th Wettest
Wettest since:
2003
Feb 2017–Jul 2018
18-Month
73.70"
(1,871.98mm)
65.29"
(1,658.37mm)
8.41"
(213.61mm)
104th Driest
Driest since:
1931
24th Wettest
Wettest since:
1984
Aug 2016–Jul 2018
24-Month
96.32"
(2,446.53mm)
86.54"
(2,198.12mm)
9.78"
(248.41mm)
103rd Driest
Driest since:
1931
24th Wettest
Wettest since:
2004
Aug 2015–Jul 2018
36-Month
139.86"
(3,552.44mm)
129.85"
(3,298.19mm)
10.01"
(254.25mm)
100th Driest
Driest since:
1966
26th Wettest
Wettest since:
2005
Ties: 1979
Aug 2014–Jul 2018
48-Month
186.85"
(4,745.99mm)
173.06"
(4,395.72mm)
13.79"
(350.27mm)
105th Driest
Driest since:
1966
20th Wettest
Wettest since:
1938
Aug 2013–Jul 2018
60-Month
232.45"
(5,904.23mm)
216.21"
(5,491.73mm)
16.24"
(412.50mm)
103rd Driest
Driest since:
1966
21st Wettest
Wettest since:
1938

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