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, September 1957

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  • Record Wettest
PeriodValue1901-2000
Mean
AnomalyRank
(1895-2022)
Wettest/Driest
Since
Record
September 1957
1-Month
4.62"
(117.35mm)
3.60"
(91.44mm)
1.02"
(25.91mm)
100th Driest
Driest since:
1941
29th Wettest
Wettest since:
1935
Aug–Sep 1957
2-Month
7.22"
(183.39mm)
8.19"
(208.03mm)
-0.97"
(-24.64mm)
51st Driest
Driest since:
2005
78th Wettest
Wettest since:
1928
Jul–Sep 1957
3-Month
8.40"
(213.36mm)
12.51"
(317.75mm)
-4.11"
(-104.39mm)
15th Driest
Driest since:
1968
114th Wettest
Wettest since:
1938
Jun–Sep 1957
4-Month
11.96"
(303.78mm)
16.14"
(409.96mm)
-4.18"
(-106.18mm)
18th Driest
Driest since:
1968
111th Wettest
Wettest since:
1938
May–Sep 1957
5-Month
13.51"
(343.15mm)
19.70"
(500.38mm)
-6.19"
(-157.23mm)
8th Driest
Driest since:
1964
121st Wettest
Wettest since:
1989
Apr–Sep 1957
6-Month
15.90"
(403.86mm)
23.18"
(588.77mm)
-7.28"
(-184.91mm)
4th Driest
Driest since:
1986
125th Wettest
Wettest since:
1989
Mar–Sep 1957
7-Month
19.28"
(489.71mm)
27.16"
(689.86mm)
-7.88"
(-200.15mm)
5th Driest
Driest since:
1986
124th Wettest
Wettest since:
1989
Feb–Sep 1957
8-Month
22.83"
(579.88mm)
30.20"
(767.08mm)
-7.37"
(-187.20mm)
10th Driest
Driest since:
1930
119th Wettest
Wettest since:
1989
Jan–Sep 1957
9-Month
25.07"
(636.78mm)
33.69"
(855.73mm)
-8.62"
(-218.95mm)
5th Driest
Driest since:
1930
124th Wettest
Wettest since:
1989
Dec 1956–Sep 1957
10-Month
28.71"
(729.23mm)
37.15"
(943.61mm)
-8.44"
(-214.38mm)
6th Driest
Driest since:
1986
122nd Wettest
Wettest since:
1958
Nov 1956–Sep 1957
11-Month
33.68"
(855.47mm)
40.22"
(1,021.59mm)
-6.54"
(-166.12mm)
19th Driest
Driest since:
1930
109th Wettest
Wettest since:
1958
Oct 1956–Sep 1957
12-Month
39.47"
(1,002.54mm)
43.37"
(1,101.60mm)
-3.90"
(-99.06mm)
38th Driest
Driest since:
1986
90th Wettest
Wettest since:
2003
Apr 1956–Sep 1957
18-Month
61.52"
(1,562.61mm)
66.48"
(1,688.59mm)
-4.96"
(-125.98mm)
40th Driest
Driest since:
1966
88th Wettest
Wettest since:
2010
Oct 1955–Sep 1957
24-Month
78.11"
(1,983.99mm)
86.63"
(2,200.40mm)
-8.52"
(-216.41mm)
22nd Driest
Driest since:
1966
105th Wettest
Wettest since:
2004
Oct 1954–Sep 1957
36-Month
120.93"
(3,071.62mm)
129.92"
(3,299.97mm)
-8.99"
(-228.35mm)
23rd Driest
Driest since:
1966
103rd Wettest
Wettest since:
1935
Oct 1953–Sep 1957
48-Month
157.72"
(4,006.09mm)
173.15"
(4,398.01mm)
-15.43"
(-391.92mm)
13th Driest
Driest since:
1966
112th Wettest
Wettest since:
1936
Oct 1952–Sep 1957
60-Month
204.43"
(5,192.52mm)
216.34"
(5,495.04mm)
-11.91"
(-302.52mm)
19th Driest
Driest since:
1966
105th Wettest
Wettest since:
1937

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