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 1966

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 1966
1-Month
6.11"
(155.19mm)
3.60"
(91.44mm)
2.51"
(63.75mm)
116th Driest
Driest since:
1941
13th Wettest
Wettest since:
1935
Aug–Sep 1966
2-Month
7.30"
(185.42mm)
8.19"
(208.03mm)
-0.89"
(-22.61mm)
52nd Driest
Driest since:
2005
77th Wettest
Wettest since:
1928
Jul–Sep 1966
3-Month
9.20"
(233.68mm)
12.50"
(317.50mm)
-3.30"
(-83.82mm)
25th Driest
Driest since:
1968
104th Wettest
Wettest since:
1938
Jun–Sep 1966
4-Month
12.25"
(311.15mm)
16.14"
(409.96mm)
-3.89"
(-98.81mm)
24th Driest
Driest since:
1968
105th Wettest
Wettest since:
1938
May–Sep 1966
5-Month
16.40"
(416.56mm)
19.70"
(500.38mm)
-3.30"
(-83.82mm)
34th Driest
Driest since:
1964
95th Wettest
Wettest since:
1989
Apr–Sep 1966
6-Month
20.35"
(516.89mm)
23.18"
(588.77mm)
-2.83"
(-71.88mm)
33rd Driest
Driest since:
1986
96th Wettest
Wettest since:
1989
Ties: 1895
Mar–Sep 1966
7-Month
21.87"
(555.50mm)
27.16"
(689.86mm)
-5.29"
(-134.36mm)
16th Driest
Driest since:
1986
113th Wettest
Wettest since:
1989
Feb–Sep 1966
8-Month
25.52"
(648.21mm)
30.20"
(767.08mm)
-4.68"
(-118.87mm)
24th Driest
Driest since:
1930
105th Wettest
Wettest since:
1989
Jan–Sep 1966
9-Month
28.84"
(732.54mm)
33.69"
(855.73mm)
-4.85"
(-123.19mm)
23rd Driest
Driest since:
1930
106th Wettest
Wettest since:
1989
Dec 1965–Sep 1966
10-Month
29.76"
(755.90mm)
37.15"
(943.61mm)
-7.39"
(-187.71mm)
13th Driest
Driest since:
1986
115th Wettest
Wettest since:
1958
Nov 1965–Sep 1966
11-Month
30.59"
(776.99mm)
40.22"
(1,021.59mm)
-9.63"
(-244.60mm)
5th Driest
Driest since:
1930
123rd Wettest
Wettest since:
1958
Oct 1965–Sep 1966
12-Month
31.87"
(809.50mm)
43.37"
(1,101.60mm)
-11.50"
(-292.10mm)
4th Driest
Driest since:
1986
124th Wettest
Wettest since:
2003
Apr 1965–Sep 1966
18-Month
50.15"
(1,273.81mm)
66.48"
(1,688.59mm)
-16.33"
(-414.78mm)
1st Driest
Driest since:
1966
127th Wettest
Wettest since:
2010
Oct 1964–Sep 1966
24-Month
66.32"
(1,684.53mm)
86.63"
(2,200.40mm)
-20.31"
(-515.87mm)
1st Driest
Driest since:
1966
126th Wettest
Wettest since:
2004
Oct 1963–Sep 1966
36-Month
102.97"
(2,615.44mm)
129.92"
(3,299.97mm)
-26.95"
(-684.53mm)
1st Driest
Driest since:
1966
125th Wettest
Wettest since:
1935
Oct 1962–Sep 1966
48-Month
140.20"
(3,561.08mm)
173.15"
(4,398.01mm)
-32.95"
(-836.93mm)
1st Driest
Driest since:
1966
124th Wettest
Wettest since:
1936
Oct 1961–Sep 1966
60-Month
179.36"
(4,555.74mm)
216.34"
(5,495.04mm)
-36.98"
(-939.30mm)
1st Driest
Driest since:
1966
123rd Wettest
Wettest since:
1937

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