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 1931

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 1931
1-Month
3.33"
(84.58mm)
4.31"
(109.47mm)
-0.98"
(-24.89mm)
39th Driest
Driest since:
1974
90th Wettest
Wettest since:
1938
Ties: 2015
Jun–Jul 1931
2-Month
6.99"
(177.55mm)
7.95"
(201.93mm)
-0.96"
(-24.38mm)
52nd Driest
Driest since:
1949
77th Wettest
Wettest since:
2013
May–Jul 1931
3-Month
10.66"
(270.76mm)
11.50"
(292.10mm)
-0.84"
(-21.34mm)
49th Driest
Driest since:
1964
80th Wettest
Wettest since:
1989
Apr–Jul 1931
4-Month
13.56"
(344.42mm)
14.98"
(380.49mm)
-1.42"
(-36.07mm)
45th Driest
Driest since:
1986
84th Wettest
Wettest since:
1989
Mar–Jul 1931
5-Month
18.54"
(470.92mm)
18.96"
(481.58mm)
-0.42"
(-10.66mm)
59th Driest
Driest since:
1986
70th Wettest
Wettest since:
1989
Feb–Jul 1931
6-Month
20.05"
(509.27mm)
22.01"
(559.05mm)
-1.96"
(-49.78mm)
38th Driest
Driest since:
1986
91st Wettest
Wettest since:
1989
Jan–Jul 1931
7-Month
21.93"
(557.02mm)
25.50"
(647.70mm)
-3.57"
(-90.68mm)
25th Driest
Driest since:
1977
104th Wettest
Wettest since:
1989
Dec 1930–Jul 1931
8-Month
24.00"
(609.60mm)
28.96"
(735.58mm)
-4.96"
(-125.98mm)
20th Driest
Driest since:
1986
108th Wettest
Wettest since:
1958
Nov 1930–Jul 1931
9-Month
25.89"
(657.61mm)
32.02"
(813.31mm)
-6.13"
(-155.70mm)
15th Driest
Driest since:
1977
113th Wettest
Wettest since:
1984
Oct 1930–Jul 1931
10-Month
27.36"
(694.94mm)
35.18"
(893.57mm)
-7.82"
(-198.63mm)
9th Driest
Driest since:
2002
119th Wettest
Wettest since:
2003
Sep 1930–Jul 1931
11-Month
29.68"
(753.87mm)
38.77"
(984.76mm)
-9.09"
(-230.89mm)
4th Driest
Driest since:
2002
124th Wettest
Wettest since:
2003
Aug 1930–Jul 1931
12-Month
31.31"
(795.27mm)
43.35"
(1,101.09mm)
-12.04"
(-305.82mm)
2nd Driest
Driest since:
1985
126th Wettest
Wettest since:
2003
Feb 1930–Jul 1931
18-Month
45.82"
(1,163.83mm)
65.29"
(1,658.37mm)
-19.47"
(-494.54mm)
1st Driest
Driest since:
1931
127th Wettest
Wettest since:
1984
Aug 1929–Jul 1931
24-Month
64.60"
(1,640.84mm)
86.54"
(2,198.12mm)
-21.94"
(-557.28mm)
1st Driest
Driest since:
1931
126th Wettest
Wettest since:
2004
Aug 1928–Jul 1931
36-Month
109.72"
(2,786.89mm)
129.85"
(3,298.19mm)
-20.13"
(-511.30mm)
6th Driest
Driest since:
1966
120th Wettest
Wettest since:
2005
Aug 1927–Jul 1931
48-Month
152.21"
(3,866.13mm)
173.06"
(4,395.72mm)
-20.85"
(-529.59mm)
6th Driest
Driest since:
1966
119th Wettest
Wettest since:
1938
Aug 1926–Jul 1931
60-Month
194.93"
(4,951.22mm)
216.21"
(5,491.73mm)
-21.28"
(-540.51mm)
6th Driest
Driest since:
1966
118th Wettest
Wettest since:
1938

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