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 2020

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 2020
1-Month
5.28"
(134.11mm)
3.13"
(79.50mm)
2.15"
(54.61mm)
111th Driest
Driest since:
1963
18th Wettest
Wettest since:
2012
Sep–Oct 2020
2-Month
9.63"
(244.60mm)
6.73"
(170.94mm)
2.90"
(73.66mm)
107th Driest
Driest since:
1941
22nd Wettest
Wettest since:
1935
Aug–Oct 2020
3-Month
18.48"
(469.39mm)
11.33"
(287.78mm)
7.15"
(181.61mm)
125th Driest
Driest since:
1930
4th Wettest
Wettest since:
2009
Jul–Oct 2020
4-Month
24.85"
(631.19mm)
15.64"
(397.26mm)
9.21"
(233.93mm)
128th Driest
Driest since:
1968
1st Wettest
Wettest to Date
2020
Jun–Oct 2020
5-Month
27.36"
(694.94mm)
19.27"
(489.46mm)
8.09"
(205.48mm)
122nd Driest
Driest since:
1921
7th Wettest
Wettest since:
1989
May–Oct 2020
6-Month
29.99"
(761.75mm)
22.83"
(579.88mm)
7.16"
(181.87mm)
110th Driest
Driest since:
1964
19th Wettest
Wettest since:
1989
Apr–Oct 2020
7-Month
33.95"
(862.33mm)
26.31"
(668.27mm)
7.64"
(194.06mm)
116th Driest
Driest since:
1930
13th Wettest
Wettest since:
1989
Mar–Oct 2020
8-Month
37.57"
(954.28mm)
30.29"
(769.37mm)
7.28"
(184.91mm)
115th Driest
Driest since:
1930
14th Wettest
Wettest since:
1989
Feb–Oct 2020
9-Month
40.87"
(1,038.10mm)
33.33"
(846.58mm)
7.54"
(191.52mm)
116th Driest
Driest since:
1930
13th Wettest
Wettest since:
1989
Jan–Oct 2020
10-Month
44.06"
(1,119.12mm)
36.82"
(935.23mm)
7.24"
(183.89mm)
117th Driest
Driest since:
1930
12th Wettest
Wettest since:
1989
Dec 2019–Oct 2020
11-Month
48.13"
(1,222.50mm)
40.29"
(1,023.37mm)
7.84"
(199.13mm)
114th Driest
Driest since:
1930
14th Wettest
Wettest since:
1958
Nov 2019–Oct 2020
12-Month
49.51"
(1,257.55mm)
43.35"
(1,101.09mm)
6.16"
(156.46mm)
102nd Driest
Driest since:
1930
26th Wettest
Wettest since:
1958
May 2019–Oct 2020
18-Month
71.00"
(1,803.40mm)
66.15"
(1,680.21mm)
4.85"
(123.19mm)
81st Driest
Driest since:
1930
47th Wettest
Wettest since:
2010
Nov 2018–Oct 2020
24-Month
96.75"
(2,457.45mm)
86.62"
(2,200.15mm)
10.13"
(257.30mm)
104th Driest
Driest since:
1930
23rd Wettest
Wettest since:
1979
Nov 2017–Oct 2020
36-Month
148.19"
(3,764.03mm)
129.89"
(3,299.21mm)
18.30"
(464.82mm)
118th Driest
Driest since:
1931
8th Wettest
Wettest since:
1937
Nov 2016–Oct 2020
48-Month
193.37"
(4,911.60mm)
173.11"
(4,396.99mm)
20.26"
(514.61mm)
117th Driest
Driest since:
1966
8th Wettest
Wettest since:
1938
Nov 2015–Oct 2020
60-Month
242.94"
(6,170.68mm)
216.32"
(5,494.53mm)
26.62"
(676.15mm)
119th Driest
Driest since:
1966
5th Wettest
Wettest since:
1937

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