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, October 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
October 1939
1-Month
4.35"
(110.49mm)
3.13"
(79.50mm)
1.22"
(30.99mm)
96th Driest
Driest since:
1963
33rd Wettest
Wettest since:
2012
Sep–Oct 1939
2-Month
6.94"
(176.28mm)
6.73"
(170.94mm)
0.21"
(5.34mm)
73rd Driest
Driest since:
1941
56th Wettest
Wettest since:
1935
Aug–Oct 1939
3-Month
14.78"
(375.41mm)
11.33"
(287.78mm)
3.45"
(87.63mm)
105th Driest
Driest since:
1930
24th Wettest
Wettest since:
2009
Jul–Oct 1939
4-Month
18.02"
(457.71mm)
15.64"
(397.26mm)
2.38"
(60.45mm)
87th Driest
Driest since:
1968
42nd Wettest
Wettest since:
2020
Jun–Oct 1939
5-Month
21.38"
(543.05mm)
19.27"
(489.46mm)
2.11"
(53.59mm)
81st Driest
Driest since:
1921
48th Wettest
Wettest since:
1989
May–Oct 1939
6-Month
22.11"
(561.59mm)
22.83"
(579.88mm)
-0.72"
(-18.29mm)
55th Driest
Driest since:
1964
74th Wettest
Wettest since:
1989
Ties: 1978
Apr–Oct 1939
7-Month
27.87"
(707.90mm)
26.31"
(668.27mm)
1.56"
(39.63mm)
82nd Driest
Driest since:
1930
47th Wettest
Wettest since:
1989
Mar–Oct 1939
8-Month
33.10"
(840.74mm)
30.29"
(769.37mm)
2.81"
(71.37mm)
91st Driest
Driest since:
1930
38th Wettest
Wettest since:
1989
Feb–Oct 1939
9-Month
38.59"
(980.19mm)
33.33"
(846.58mm)
5.26"
(133.61mm)
102nd Driest
Driest since:
1930
27th Wettest
Wettest since:
1989
Jan–Oct 1939
10-Month
42.35"
(1,075.69mm)
36.82"
(935.23mm)
5.53"
(140.46mm)
106th Driest
Driest since:
1930
23rd Wettest
Wettest since:
1989
Dec 1938–Oct 1939
11-Month
45.14"
(1,146.56mm)
40.29"
(1,023.37mm)
4.85"
(123.19mm)
99th Driest
Driest since:
1930
29th Wettest
Wettest since:
1958
Nov 1938–Oct 1939
12-Month
48.40"
(1,229.36mm)
43.35"
(1,101.09mm)
5.05"
(128.27mm)
94th Driest
Driest since:
1930
34th Wettest
Wettest since:
1958
May 1938–Oct 1939
18-Month
81.23"
(2,063.24mm)
66.15"
(1,680.21mm)
15.08"
(383.03mm)
124th Driest
Driest since:
1930
4th Wettest
Wettest to Date
2010
Nov 1937–Oct 1939
24-Month
97.48"
(2,475.99mm)
86.62"
(2,200.15mm)
10.86"
(275.84mm)
107th Driest
Driest since:
1930
20th Wettest
Wettest since:
1979
Nov 1936–Oct 1939
36-Month
150.31"
(3,817.87mm)
129.89"
(3,299.21mm)
20.42"
(518.66mm)
121st Driest
Driest since:
1931
5th Wettest
Wettest since:
1937
Nov 1935–Oct 1939
48-Month
199.43"
(5,065.52mm)
173.11"
(4,396.99mm)
26.32"
(668.53mm)
121st Driest
Driest since:
1966
4th Wettest
Wettest since:
1938
Nov 1934–Oct 1939
60-Month
251.92"
(6,398.77mm)
216.32"
(5,494.53mm)
35.60"
(904.24mm)
122nd Driest
Driest since:
1966
2nd Wettest
Wettest since:
1937

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