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 1938

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
July 1938
1-Month 		10.72"
(272.29mm)		 4.31"
(109.47mm)		 6.41"
(162.82mm)		 128th Driest
Driest since:
 1974
1st Wettest
Wettest to Date
 1938
Jun–Jul 1938
2-Month 		15.64"
(397.26mm)		 7.95"
(201.93mm)		 7.69"
(195.33mm)		 127th Driest
Driest since:
 1949
2nd Wettest
Wettest to Date
 2013
May–Jul 1938
3-Month 		19.44"
(493.78mm)		 11.50"
(292.10mm)		 7.94"
(201.68mm)		 125th Driest
Driest since:
 1964
4th Wettest
Wettest to Date
 1989
Apr–Jul 1938
4-Month 		21.45"
(544.83mm)		 14.98"
(380.49mm)		 6.47"
(164.34mm)		 122nd Driest
Driest since:
 1986
7th Wettest
Wettest since:
 1989
Mar–Jul 1938
5-Month 		24.34"
(618.24mm)		 18.96"
(481.58mm)		 5.38"
(136.66mm)		 117th Driest
Driest since:
 1986
12th Wettest
Wettest since:
 1989
Feb–Jul 1938
6-Month 		27.21"
(691.13mm)		 22.01"
(559.05mm)		 5.20"
(132.08mm)		 111th Driest
Driest since:
 1986
18th Wettest
Wettest since:
 1989
Jan–Jul 1938
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: 1978
Dec 1937–Jul 1938
8-Month 		31.46"
(799.08mm)		 28.96"
(735.58mm)		 2.50"
(63.50mm)		 92nd Driest
Driest since:
 1986
36th Wettest
Wettest since:
 1958
Nov 1937–Jul 1938
9-Month 		35.69"
(906.53mm)		 32.02"
(813.31mm)		 3.67"
(93.22mm)		 95th Driest
Driest since:
 1977
33rd Wettest
Wettest since:
 1984
Ties: 1936
Oct 1937–Jul 1938
10-Month 		41.64"
(1,057.66mm)		 35.18"
(893.57mm)		 6.46"
(164.09mm)		 106th Driest
Driest since:
 2002
22nd Wettest
Wettest since:
 2003
Sep 1937–Jul 1938
11-Month 		43.23"
(1,098.04mm)		 38.77"
(984.76mm)		 4.46"
(113.28mm)		 96th Driest
Driest since:
 2002
32nd Wettest
Wettest since:
 2003
Aug 1937–Jul 1938
12-Month 		51.23"
(1,301.24mm)		 43.35"
(1,101.09mm)		 7.88"
(200.15mm)		 109th Driest
Driest since:
 1985
19th Wettest
Wettest since:
 2003
Feb 1937–Jul 1938
18-Month 		74.32"
(1,887.73mm)		 65.29"
(1,658.37mm)		 9.03"
(229.36mm)		 110th Driest
Driest since:
 1931
18th Wettest
Wettest since:
 1984
Aug 1936–Jul 1938
24-Month 		101.95"
(2,589.53mm)		 86.54"
(2,198.12mm)		 15.41"
(391.41mm)		 120th Driest
Driest since:
 1931
7th Wettest
Wettest since:
 2004
Aug 1935–Jul 1938
36-Month 		155.71"
(3,955.03mm)		 129.85"
(3,298.19mm)		 25.86"
(656.84mm)		 124th Driest
Driest since:
 1966
2nd Wettest
Wettest to Date
 2005
Aug 1934–Jul 1938
48-Month 		204.12"
(5,184.65mm)		 173.06"
(4,395.72mm)		 31.06"
(788.93mm)		 124th Driest
Driest since:
 1966
1st Wettest
Wettest to Date
 1938
Aug 1933–Jul 1938
60-Month 		253.53"
(6,439.66mm)		 216.21"
(5,491.73mm)		 37.32"
(947.93mm)		 123rd Driest
Driest since:
 1966
1st Wettest
Wettest to Date
 1938

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