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 1940

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 1940
1-Month
4.82"
(122.43mm)
4.59"
(116.59mm)
0.23"
(5.84mm)
79th Driest
Driest since:
2008
50th Wettest
Wettest since:
1967
Jul–Aug 1940
2-Month
7.38"
(187.45mm)
8.90"
(226.06mm)
-1.52"
(-38.61mm)
53rd Driest
Driest since:
1966
76th Wettest
Wettest since:
1919
Jun–Aug 1940
3-Month
9.15"
(232.41mm)
12.54"
(318.52mm)
-3.39"
(-86.11mm)
25th Driest
Driest since:
1966
104th Wettest
Wettest since:
2013
Ties: 1980
May–Aug 1940
4-Month
14.48"
(367.79mm)
16.10"
(408.94mm)
-1.62"
(-41.15mm)
44th Driest
Driest since:
1964
85th Wettest
Wettest since:
1919
Ties: 2008
Apr–Aug 1940
5-Month
19.99"
(507.75mm)
19.58"
(497.33mm)
0.41"
(10.42mm)
70th Driest
Driest since:
1957
59th Wettest
Wettest since:
1919
Mar–Aug 1940
6-Month
23.96"
(608.58mm)
23.55"
(598.17mm)
0.41"
(10.41mm)
72nd Driest
Driest since:
1930
57th Wettest
Wettest since:
1989
Feb–Aug 1940
7-Month
26.99"
(685.55mm)
26.60"
(675.64mm)
0.39"
(9.91mm)
72nd Driest
Driest since:
1930
57th Wettest
Wettest since:
1958
Ties: 1901
Jan–Aug 1940
8-Month
29.49"
(749.05mm)
30.09"
(764.29mm)
-0.60"
(-15.24mm)
63rd Driest
Driest since:
1930
66th Wettest
Wettest since:
1958
Dec 1939–Aug 1940
9-Month
31.03"
(788.16mm)
33.55"
(852.17mm)
-2.52"
(-64.01mm)
43rd Driest
Driest since:
1930
85th Wettest
Wettest since:
1958
Nov 1939–Aug 1940
10-Month
32.60"
(828.04mm)
36.62"
(930.15mm)
-4.02"
(-102.11mm)
37th Driest
Driest since:
1977
91st Wettest
Wettest since:
1958
Oct 1939–Aug 1940
11-Month
36.95"
(938.53mm)
39.77"
(1,010.16mm)
-2.82"
(-71.63mm)
46th Driest
Driest since:
1966
82nd Wettest
Wettest since:
1958
Sep 1939–Aug 1940
12-Month
39.54"
(1,004.32mm)
43.36"
(1,101.34mm)
-3.82"
(-97.02mm)
41st Driest
Driest since:
1966
87th Wettest
Wettest since:
1958
Mar 1939–Aug 1940
18-Month
65.70"
(1,668.78mm)
66.82"
(1,697.23mm)
-1.12"
(-28.45mm)
58th Driest
Driest since:
1966
70th Wettest
Wettest since:
1984
Sep 1938–Aug 1940
24-Month
91.37"
(2,320.80mm)
86.56"
(2,198.62mm)
4.81"
(122.18mm)
85th Driest
Driest since:
1966
42nd Wettest
Wettest since:
2004
Sep 1937–Aug 1940
36-Month
137.62"
(3,495.55mm)
129.84"
(3,297.94mm)
7.78"
(197.61mm)
91st Driest
Driest since:
1966
35th Wettest
Wettest since:
2005
Sep 1936–Aug 1940
48-Month
190.85"
(4,847.59mm)
173.06"
(4,395.72mm)
17.79"
(451.87mm)
114th Driest
Driest since:
1966
11th Wettest
Wettest since:
1939
Sep 1935–Aug 1940
60-Month
246.35"
(6,257.29mm)
216.24"
(5,492.50mm)
30.11"
(764.79mm)
120th Driest
Driest since:
1966
4th Wettest
Wettest since:
1937

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