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 1930

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
September 1930
1-Month
2.32"
(58.93mm)
3.60"
(91.44mm)
-1.28"
(-32.51mm)
33rd Driest
Driest since:
1941
96th Wettest
Wettest since:
1935
Ties: 1931
Aug–Sep 1930
2-Month
3.95"
(100.33mm)
8.19"
(208.03mm)
-4.24"
(-107.70mm)
9th Driest
Driest since:
2005
120th Wettest
Wettest since:
1928
Jul–Sep 1930
3-Month
7.37"
(187.20mm)
12.51"
(317.75mm)
-5.14"
(-130.55mm)
4th Driest
Driest since:
1968
125th Wettest
Wettest since:
1938
Ties: 2007
Jun–Sep 1930
4-Month
10.17"
(258.32mm)
16.14"
(409.96mm)
-5.97"
(-151.64mm)
4th Driest
Driest since:
1968
125th Wettest
Wettest since:
1938
May–Sep 1930
5-Month
12.74"
(323.60mm)
19.70"
(500.38mm)
-6.96"
(-176.78mm)
4th Driest
Driest since:
1964
125th Wettest
Wettest since:
1989
Apr–Sep 1930
6-Month
14.65"
(372.11mm)
23.18"
(588.77mm)
-8.53"
(-216.66mm)
2nd Driest
Driest since:
1986
127th Wettest
Wettest since:
1989
Mar–Sep 1930
7-Month
16.51"
(419.35mm)
27.16"
(689.86mm)
-10.65"
(-270.51mm)
2nd Driest
Driest since:
1986
127th Wettest
Wettest since:
1989
Feb–Sep 1930
8-Month
18.46"
(468.88mm)
30.20"
(767.08mm)
-11.74"
(-298.20mm)
1st Driest
Driest since:
1930
128th Wettest
Wettest since:
1989
Jan–Sep 1930
9-Month
21.94"
(557.28mm)
33.69"
(855.73mm)
-11.75"
(-298.45mm)
1st Driest
Driest since:
1930
128th Wettest
Wettest since:
1989
Dec 1929–Sep 1930
10-Month
24.45"
(621.03mm)
37.15"
(943.61mm)
-12.70"
(-322.58mm)
2nd Driest
Driest since:
1986
126th Wettest
Wettest since:
1958
Nov 1929–Sep 1930
11-Month
26.96"
(684.78mm)
40.22"
(1,021.59mm)
-13.26"
(-336.81mm)
1st Driest
Driest since:
1930
127th Wettest
Wettest since:
1958
Oct 1929–Sep 1930
12-Month
31.20"
(792.48mm)
43.37"
(1,101.60mm)
-12.17"
(-309.12mm)
2nd Driest
Driest since:
1986
126th Wettest
Wettest since:
2003
Apr 1929–Sep 1930
18-Month
51.06"
(1,296.92mm)
66.48"
(1,688.59mm)
-15.42"
(-391.67mm)
3rd Driest
Driest since:
1966
125th Wettest
Wettest since:
2010
Oct 1928–Sep 1930
24-Month
66.69"
(1,693.93mm)
86.63"
(2,200.40mm)
-19.94"
(-506.47mm)
2nd Driest
Driest since:
1966
125th Wettest
Wettest since:
2004
Oct 1927–Sep 1930
36-Month
119.20"
(3,027.68mm)
129.92"
(3,299.97mm)
-10.72"
(-272.29mm)
19th Driest
Driest since:
1966
107th Wettest
Wettest since:
1935
Oct 1926–Sep 1930
48-Month
157.27"
(3,994.66mm)
173.15"
(4,398.01mm)
-15.88"
(-403.35mm)
10th Driest
Driest since:
1966
115th Wettest
Wettest since:
1936
Oct 1925–Sep 1930
60-Month
201.39"
(5,115.31mm)
216.34"
(5,495.04mm)
-14.95"
(-379.73mm)
12th Driest
Driest since:
1966
112th Wettest
Wettest since:
1937

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