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, August 2009

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
August 2009
1-Month
8.23"
(209.04mm)
4.59"
(116.59mm)
3.64"
(92.45mm)
118th Driest
Driest since:
2008
11th Wettest
Wettest since:
1967
Jul–Aug 2009
2-Month
10.78"
(273.81mm)
8.90"
(226.06mm)
1.88"
(47.75mm)
94th Driest
Driest since:
1966
35th Wettest
Wettest since:
1919
Jun–Aug 2009
3-Month
16.38"
(416.05mm)
12.54"
(318.52mm)
3.84"
(97.53mm)
106th Driest
Driest since:
1966
23rd Wettest
Wettest since:
2013
May–Aug 2009
4-Month
21.39"
(543.31mm)
16.10"
(408.94mm)
5.29"
(134.37mm)
115th Driest
Driest since:
1964
14th Wettest
Wettest since:
1919
Apr–Aug 2009
5-Month
26.69"
(677.93mm)
19.58"
(497.33mm)
7.11"
(180.60mm)
120th Driest
Driest since:
1957
9th Wettest
Wettest since:
1919
Mar–Aug 2009
6-Month
29.05"
(737.87mm)
23.55"
(598.17mm)
5.50"
(139.70mm)
113th Driest
Driest since:
1930
16th Wettest
Wettest since:
1989
Feb–Aug 2009
7-Month
29.49"
(749.05mm)
26.60"
(675.64mm)
2.89"
(73.41mm)
93rd Driest
Driest since:
1930
36th Wettest
Wettest since:
1958
Jan–Aug 2009
8-Month
31.85"
(808.99mm)
30.09"
(764.29mm)
1.76"
(44.70mm)
85th Driest
Driest since:
1930
44th Wettest
Wettest since:
1958
Dec 2008–Aug 2009
9-Month
37.10"
(942.34mm)
33.55"
(852.17mm)
3.55"
(90.17mm)
93rd Driest
Driest since:
1930
35th Wettest
Wettest since:
1958
Nov 2008–Aug 2009
10-Month
41.83"
(1,062.48mm)
36.62"
(930.15mm)
5.21"
(132.33mm)
102nd Driest
Driest since:
1977
26th Wettest
Wettest since:
1958
Oct 2008–Aug 2009
11-Month
43.66"
(1,108.96mm)
39.77"
(1,010.16mm)
3.89"
(98.80mm)
91st Driest
Driest since:
1966
37th Wettest
Wettest since:
1958
Ties: 1908
Sep 2008–Aug 2009
12-Month
48.04"
(1,220.22mm)
43.36"
(1,101.34mm)
4.68"
(118.88mm)
95th Driest
Driest since:
1966
33rd Wettest
Wettest since:
1958
Mar 2008–Aug 2009
18-Month
68.94"
(1,751.08mm)
66.82"
(1,697.23mm)
2.12"
(53.85mm)
78th Driest
Driest since:
1966
50th Wettest
Wettest since:
1984
Sep 2007–Aug 2009
24-Month
86.67"
(2,201.42mm)
86.56"
(2,198.62mm)
0.11"
(2.80mm)
62nd Driest
Driest since:
1966
65th Wettest
Wettest since:
2004
Sep 2006–Aug 2009
36-Month
132.57"
(3,367.28mm)
129.84"
(3,297.94mm)
2.73"
(69.34mm)
65th Driest
Driest since:
1966
61st Wettest
Wettest since:
2005
Sep 2005–Aug 2009
48-Month
175.45"
(4,456.43mm)
173.06"
(4,395.72mm)
2.39"
(60.71mm)
59th Driest
Driest since:
1966
66th Wettest
Wettest since:
1939
Ties: 1921
Sep 2004–Aug 2009
60-Month
219.54"
(5,576.32mm)
216.24"
(5,492.50mm)
3.30"
(83.82mm)
63rd Driest
Driest since:
1966
61st Wettest
Wettest since:
1937

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