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 1939

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 1939
1-Month
7.84"
(199.14mm)
4.59"
(116.59mm)
3.25"
(82.55mm)
114th Driest
Driest since:
2008
15th Wettest
Wettest since:
1967
Ties: 1915
Jul–Aug 1939
2-Month
11.08"
(281.43mm)
8.90"
(226.06mm)
2.18"
(55.37mm)
96th Driest
Driest since:
1966
33rd Wettest
Wettest since:
1919
Jun–Aug 1939
3-Month
14.44"
(366.78mm)
12.54"
(318.52mm)
1.90"
(48.26mm)
89th Driest
Driest since:
1966
40th Wettest
Wettest since:
2013
May–Aug 1939
4-Month
15.17"
(385.32mm)
16.10"
(408.94mm)
-0.93"
(-23.62mm)
54th Driest
Driest since:
1964
75th Wettest
Wettest since:
1919
Apr–Aug 1939
5-Month
20.93"
(531.62mm)
19.58"
(497.33mm)
1.35"
(34.29mm)
79th Driest
Driest since:
1957
50th Wettest
Wettest since:
1919
Mar–Aug 1939
6-Month
26.16"
(664.46mm)
23.55"
(598.17mm)
2.61"
(66.29mm)
91st Driest
Driest since:
1930
38th Wettest
Wettest since:
1989
Feb–Aug 1939
7-Month
31.65"
(803.91mm)
26.60"
(675.64mm)
5.05"
(128.27mm)
107th Driest
Driest since:
1930
22nd Wettest
Wettest since:
1958
Jan–Aug 1939
8-Month
35.41"
(899.41mm)
30.09"
(764.29mm)
5.32"
(135.12mm)
110th Driest
Driest since:
1930
19th Wettest
Wettest since:
1958
Dec 1938–Aug 1939
9-Month
38.20"
(970.28mm)
33.55"
(852.17mm)
4.65"
(118.11mm)
102nd Driest
Driest since:
1930
26th Wettest
Wettest since:
1958
Nov 1938–Aug 1939
10-Month
41.46"
(1,053.08mm)
36.62"
(930.15mm)
4.84"
(122.93mm)
99th Driest
Driest since:
1977
29th Wettest
Wettest since:
1958
Oct 1938–Aug 1939
11-Month
43.98"
(1,117.09mm)
39.77"
(1,010.16mm)
4.21"
(106.93mm)
94th Driest
Driest since:
1966
34th Wettest
Wettest since:
1958
Sep 1938–Aug 1939
12-Month
51.83"
(1,316.48mm)
43.36"
(1,101.34mm)
8.47"
(215.14mm)
107th Driest
Driest since:
1966
21st Wettest
Wettest since:
1958
Mar 1938–Aug 1939
18-Month
79.19"
(2,011.43mm)
66.82"
(1,697.23mm)
12.37"
(314.20mm)
118th Driest
Driest since:
1966
10th Wettest
Wettest since:
1984
Sep 1937–Aug 1939
24-Month
98.08"
(2,491.23mm)
86.56"
(2,198.62mm)
11.52"
(292.61mm)
104th Driest
Driest since:
1966
23rd Wettest
Wettest since:
2004
Sep 1936–Aug 1939
36-Month
151.31"
(3,843.27mm)
129.84"
(3,297.94mm)
21.47"
(545.33mm)
121st Driest
Driest since:
1966
5th Wettest
Wettest since:
2005
Sep 1935–Aug 1939
48-Month
206.81"
(5,252.97mm)
173.06"
(4,395.72mm)
33.75"
(857.25mm)
124th Driest
Driest since:
1966
1st Wettest
Wettest to Date
1939
Sep 1934–Aug 1939
60-Month
254.09"
(6,453.89mm)
216.24"
(5,492.50mm)
37.85"
(961.39mm)
122nd Driest
Driest since:
1966
2nd Wettest
Wettest since:
1937

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