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, September 1989

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
September 1989
1-Month
5.57"
(141.48mm)
3.60"
(91.44mm)
1.97"
(50.04mm)
108th Driest
Driest since:
1941
21st Wettest
Wettest since:
1935
Aug–Sep 1989
2-Month
10.91"
(277.11mm)
8.19"
(208.03mm)
2.72"
(69.08mm)
107th Driest
Driest since:
2005
22nd Wettest
Wettest since:
1928
Jul–Sep 1989
3-Month
19.33"
(490.98mm)
12.51"
(317.75mm)
6.82"
(173.23mm)
121st Driest
Driest since:
1968
8th Wettest
Wettest since:
1938
Jun–Sep 1989
4-Month
25.98"
(659.89mm)
16.14"
(409.96mm)
9.84"
(249.93mm)
127th Driest
Driest since:
1968
2nd Wettest
Wettest since:
1938
May–Sep 1989
5-Month
31.06"
(788.92mm)
19.70"
(500.38mm)
11.36"
(288.54mm)
128th Driest
Driest since:
1964
1st Wettest
Wettest to Date
1989
Apr–Sep 1989
6-Month
36.04"
(915.42mm)
23.18"
(588.77mm)
12.86"
(326.65mm)
128th Driest
Driest since:
1986
1st Wettest
Wettest to Date
1989
Mar–Sep 1989
7-Month
42.42"
(1,077.47mm)
27.16"
(689.86mm)
15.26"
(387.61mm)
128th Driest
Driest since:
1986
1st Wettest
Wettest to Date
1989
Feb–Sep 1989
8-Month
45.73"
(1,161.54mm)
30.20"
(767.08mm)
15.53"
(394.46mm)
128th Driest
Driest since:
1930
1st Wettest
Wettest to Date
1989
Jan–Sep 1989
9-Month
48.39"
(1,229.11mm)
33.69"
(855.73mm)
14.70"
(373.38mm)
128th Driest
Driest since:
1930
1st Wettest
Wettest to Date
1989
Dec 1988–Sep 1989
10-Month
49.11"
(1,247.39mm)
37.15"
(943.61mm)
11.96"
(303.78mm)
124th Driest
Driest since:
1986
4th Wettest
Wettest since:
1958
Nov 1988–Sep 1989
11-Month
54.05"
(1,372.87mm)
40.22"
(1,021.59mm)
13.83"
(351.28mm)
126th Driest
Driest since:
1930
2nd Wettest
Wettest since:
1958
Oct 1988–Sep 1989
12-Month
56.57"
(1,436.88mm)
43.37"
(1,101.60mm)
13.20"
(335.28mm)
124th Driest
Driest since:
1986
4th Wettest
Wettest since:
2003
Apr 1988–Sep 1989
18-Month
77.05"
(1,957.07mm)
66.48"
(1,688.59mm)
10.57"
(268.48mm)
111th Driest
Driest since:
1966
17th Wettest
Wettest since:
2010
Oct 1987–Sep 1989
24-Month
96.00"
(2,438.40mm)
86.63"
(2,200.40mm)
9.37"
(238.00mm)
102nd Driest
Driest since:
1966
25th Wettest
Wettest since:
2004
Oct 1986–Sep 1989
36-Month
137.62"
(3,495.55mm)
129.92"
(3,299.97mm)
7.70"
(195.58mm)
84th Driest
Driest since:
1966
42nd Wettest
Wettest since:
1935
Oct 1985–Sep 1989
48-Month
167.87"
(4,263.90mm)
173.15"
(4,398.01mm)
-5.28"
(-134.11mm)
37th Driest
Driest since:
1966
88th Wettest
Wettest since:
1936
Oct 1984–Sep 1989
60-Month
206.68"
(5,249.67mm)
216.34"
(5,495.04mm)
-9.66"
(-245.37mm)
25th Driest
Driest since:
1966
99th Wettest
Wettest since:
1937

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