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 1899

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
July 1899
1-Month
4.82"
(122.43mm)
4.31"
(109.47mm)
0.51"
(12.96mm)
81st Driest
Driest since:
1974
48th Wettest
Wettest since:
1938
Jun–Jul 1899
2-Month
7.11"
(180.59mm)
7.95"
(201.93mm)
-0.84"
(-21.34mm)
54th Driest
Driest since:
1949
75th Wettest
Wettest since:
2013
May–Jul 1899
3-Month
9.32"
(236.73mm)
11.50"
(292.10mm)
-2.18"
(-55.37mm)
33rd Driest
Driest since:
1964
96th Wettest
Wettest since:
1989
Apr–Jul 1899
4-Month
10.88"
(276.35mm)
14.98"
(380.49mm)
-4.10"
(-104.14mm)
14th Driest
Driest since:
1986
115th Wettest
Wettest since:
1989
Mar–Jul 1899
5-Month
16.36"
(415.54mm)
18.96"
(481.58mm)
-2.60"
(-66.04mm)
28th Driest
Driest since:
1986
101st Wettest
Wettest since:
1989
Ties: 1968
Feb–Jul 1899
6-Month
22.17"
(563.12mm)
22.01"
(559.05mm)
0.16"
(4.07mm)
69th Driest
Driest since:
1986
60th Wettest
Wettest since:
1989
Ties: 1940
Jan–Jul 1899
7-Month
25.78"
(654.81mm)
25.50"
(647.70mm)
0.28"
(7.11mm)
77th Driest
Driest since:
1977
52nd Wettest
Wettest since:
1989
Dec 1898–Jul 1899
8-Month
29.27"
(743.46mm)
28.96"
(735.58mm)
0.31"
(7.88mm)
67th Driest
Driest since:
1986
61st Wettest
Wettest to Date
1958
Nov 1898–Jul 1899
9-Month
33.86"
(860.04mm)
32.02"
(813.31mm)
1.84"
(46.73mm)
81st Driest
Driest since:
1977
47th Wettest
Wettest to Date
1984
Oct 1898–Jul 1899
10-Month
37.98"
(964.69mm)
35.18"
(893.57mm)
2.80"
(71.12mm)
88th Driest
Driest since:
2002
40th Wettest
Wettest to Date
2003
Sep 1898–Jul 1899
11-Month
40.25"
(1,022.35mm)
38.77"
(984.76mm)
1.48"
(37.59mm)
77th Driest
Driest since:
2002
51st Wettest
Wettest to Date
2003
Aug 1898–Jul 1899
12-Month
45.48"
(1,155.19mm)
43.35"
(1,101.09mm)
2.13"
(54.10mm)
77th Driest
Driest since:
1985
51st Wettest
Wettest to Date
2003
Feb 1898–Jul 1899
18-Month
64.60"
(1,640.84mm)
65.29"
(1,658.37mm)
-0.69"
(-17.53mm)
56th Driest
Driest since:
1931
72nd Wettest
Wettest since:
1984
Aug 1897–Jul 1899
24-Month
84.77"
(2,153.16mm)
86.54"
(2,198.12mm)
-1.77"
(-44.96mm)
49th Driest
Driest since:
1931
78th Wettest
Wettest to Date
2004
Ties: 1968
Aug 1896–Jul 1899
36-Month
125.08"
(3,177.03mm)
129.85"
(3,298.19mm)
-4.77"
(-121.16mm)
36th Driest
Driest since:
1966
90th Wettest
Wettest to Date
2005
Aug 1895–Jul 1899
48-Month
163.53"
(4,153.66mm)
173.06"
(4,395.72mm)
-9.53"
(-242.06mm)
19th Driest
Driest since:
1966
106th Wettest
Wettest to Date
1938

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