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 1978

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  • Record Wettest
PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Wettest/Driest
Since
Record
July 1978
1-Month
5.04"
(128.02mm)
4.31"
(109.47mm)
0.73"
(18.55mm)
86th Driest
Driest since:
1974
43rd Wettest
Wettest since:
1938
Jun–Jul 1978
2-Month
7.52"
(191.01mm)
7.95"
(201.93mm)
-0.43"
(-10.92mm)
60th Driest
Driest since:
1949
69th Wettest
Wettest since:
2013
Ties: 1934
May–Jul 1978
3-Month
13.66"
(346.96mm)
11.50"
(292.10mm)
2.16"
(54.86mm)
98th Driest
Driest since:
1964
31st Wettest
Wettest since:
1989
Apr–Jul 1978
4-Month
16.17"
(410.72mm)
14.98"
(380.49mm)
1.19"
(30.23mm)
81st Driest
Driest since:
1986
48th Wettest
Wettest since:
1989
Mar–Jul 1978
5-Month
22.10"
(561.34mm)
18.96"
(481.58mm)
3.14"
(79.76mm)
106th Driest
Driest since:
1986
23rd Wettest
Wettest since:
1989
Feb–Jul 1978
6-Month
23.19"
(589.03mm)
22.01"
(559.05mm)
1.18"
(29.98mm)
79th Driest
Driest since:
1986
50th Wettest
Wettest since:
1989
Jan–Jul 1978
7-Month
30.20"
(767.08mm)
25.50"
(647.70mm)
4.70"
(119.38mm)
109th Driest
Driest since:
1977
20th Wettest
Wettest since:
1989
Ties: 1938
Dec 1977–Jul 1978
8-Month
37.14"
(943.36mm)
28.96"
(735.58mm)
8.18"
(207.78mm)
121st Driest
Driest since:
1986
7th Wettest
Wettest since:
1958
Nov 1977–Jul 1978
9-Month
42.55"
(1,080.77mm)
32.02"
(813.31mm)
10.53"
(267.46mm)
123rd Driest
Driest since:
1977
5th Wettest
Wettest since:
1984
Oct 1977–Jul 1978
10-Month
46.34"
(1,177.04mm)
35.18"
(893.57mm)
11.16"
(283.47mm)
123rd Driest
Driest since:
2002
5th Wettest
Wettest since:
2003
Sep 1977–Jul 1978
11-Month
50.38"
(1,279.65mm)
38.77"
(984.76mm)
11.61"
(294.89mm)
124th Driest
Driest since:
2002
4th Wettest
Wettest since:
2003
Aug 1977–Jul 1978
12-Month
54.13"
(1,374.90mm)
43.35"
(1,101.09mm)
10.78"
(273.81mm)
118th Driest
Driest since:
1985
10th Wettest
Wettest since:
2003
Feb 1977–Jul 1978
18-Month
68.29"
(1,734.57mm)
65.29"
(1,658.37mm)
3.00"
(76.20mm)
78th Driest
Driest since:
1931
50th Wettest
Wettest since:
1984
Aug 1976–Jul 1978
24-Month
89.96"
(2,284.98mm)
86.54"
(2,198.12mm)
3.42"
(86.86mm)
77th Driest
Driest since:
1931
50th Wettest
Wettest since:
2004
Aug 1975–Jul 1978
36-Month
128.51"
(3,264.15mm)
129.85"
(3,298.19mm)
-1.34"
(-34.04mm)
48th Driest
Driest since:
1966
78th Wettest
Wettest since:
2005
Aug 1974–Jul 1978
48-Month
180.21"
(4,577.33mm)
173.06"
(4,395.72mm)
7.15"
(181.61mm)
83rd Driest
Driest since:
1966
42nd Wettest
Wettest since:
1938
Aug 1973–Jul 1978
60-Month
221.42"
(5,624.07mm)
216.21"
(5,491.73mm)
5.21"
(132.34mm)
70th Driest
Driest since:
1966
54th Wettest
Wettest since:
1938

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