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, May 1902

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
May 1902
1-Month 		1.93"
(49.02mm)		 3.56"
(90.42mm)		 -1.63"
(-41.40mm)		 22nd Driest
Driest since:
 1964
107th Wettest
Wettest since:
 1948
Apr–May 1902
2-Month 		5.88"
(149.35mm)		 7.04"
(178.82mm)		 -1.16"
(-29.47mm)		 43rd Driest
Driest since:
 1942
86th Wettest
Wettest since:
 1948
Mar–May 1902
3-Month 		9.16"
(232.66mm)		 11.01"
(279.65mm)		 -1.85"
(-46.99mm)		 30th Driest
Driest since:
 1986
99th Wettest
Wettest since:
 1983
Ties: 2015
Feb–May 1902
4-Month 		14.24"
(361.70mm)		 14.06"
(357.12mm)		 0.18"
(4.58mm)		 73rd Driest
Driest since:
 2006
56th Wettest
Wettest since:
 1983
Jan–May 1902
5-Month 		17.93"
(455.42mm)		 17.55"
(445.77mm)		 0.38"
(9.65mm)		 81st Driest
Driest since:
 2012
48th Wettest
Wettest since:
 1948
Ties: 1913
Dec 1901–May 1902
6-Month 		24.07"
(611.38mm)		 21.01"
(533.65mm)		 3.06"
(77.73mm)		 106th Driest
Driest since:
 1986
22nd Wettest
Wettest to Date
 1984
Nov 1901–May 1902
7-Month 		26.35"
(669.29mm)		 24.08"
(611.63mm)		 2.27"
(57.66mm)		 92nd Driest
Driest since:
 1977
36th Wettest
Wettest since:
 1984
Oct 1901–May 1902
8-Month 		28.05"
(712.47mm)		 27.23"
(691.64mm)		 0.82"
(20.83mm)		 78th Driest
Driest since:
 2002
50th Wettest
Wettest since:
 1984
Ties: 1920
Sep 1901–May 1902
9-Month 		30.94"
(785.88mm)		 30.82"
(782.83mm)		 0.12"
(3.05mm)		 76th Driest
Driest since:
 2002
52nd Wettest
Wettest since:
 1984
Aug 1901–May 1902
10-Month 		37.68"
(957.07mm)		 35.40"
(899.16mm)		 2.28"
(57.91mm)		 80th Driest
Driest since:
 1985
48th Wettest
Wettest since:
 2010
Jul 1901–May 1902
11-Month 		43.25"
(1,098.55mm)		 39.69"
(1,008.13mm)		 3.56"
(90.42mm)		 83rd Driest
Driest since:
 1931
45th Wettest
Wettest to Date
 2021
Jun 1901–May 1902
12-Month 		45.50"
(1,155.70mm)		 43.32"
(1,100.33mm)		 2.18"
(55.37mm)		 77th Driest
Driest since:
 1965
51st Wettest
Wettest to Date
 2010
Dec 1900–May 1902
18-Month 		63.42"
(1,610.87mm)		 64.29"
(1,632.97mm)		 -0.87"
(-22.10mm)		 56th Driest
Driest since:
 1931
71st Wettest
Wettest since:
 1949
Jun 1900–May 1902
24-Month 		84.47"
(2,145.54mm)		 86.54"
(2,198.12mm)		 -2.07"
(-52.58mm)		 49th Driest
Driest since:
 1931
78th Wettest
Wettest since:
 2019
Jun 1899–May 1902
36-Month 		121.64"
(3,089.66mm)		 129.85"
(3,298.19mm)		 -8.21"
(-208.53mm)		 25th Driest
Driest since:
 1967
101st Wettest
Wettest since:
 2005
Jun 1898–May 1902
48-Month 		166.14"
(4,219.96mm)		 173.12"
(4,397.25mm)		 -6.98"
(-177.29mm)		 29th Driest
Driest since:
 1966
96th Wettest
Wettest to Date
 1939
Jun 1897–May 1902
60-Month 		210.77"
(5,353.56mm)		 216.25"
(5,492.75mm)		 -5.48"
(-139.19mm)		 35th Driest
Driest since:
 1967
89th Wettest
Wettest to Date
 1939

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