Climate at a Glance

Statewide Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of September 2021. For more information, please see Climatological Rankings.


Delaware

Precipitation Rankings, September 1990

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 1990
1-Month
2.11"
(53.59mm)
3.60"
(91.44mm)
-1.49"
(-37.85mm)
27th Driest Driest since: 1986 1941
101st Wettest Wettest since: 1989 1935
Aug–Sep 1990
2-Month
7.54"
(191.52mm)
8.19"
(208.03mm)
-0.65"
(-16.51mm)
54th Driest Driest since: 1988 2005
74th Wettest Wettest since: 1989 1928
Jul–Sep 1990
3-Month
12.55"
(318.77mm)
12.51"
(317.75mm)
0.04"
(1.02mm)
70th Driest Driest since: 1988 1968
58th Wettest Wettest since: 1989 1938
Jun–Sep 1990
4-Month
14.52"
(368.81mm)
16.14"
(409.96mm)
-1.62"
(-41.15mm)
51st Driest Driest since: 1988 1968
77th Wettest Wettest since: 1989 1938
May–Sep 1990
5-Month
21.98"
(558.29mm)
19.70"
(500.38mm)
2.28"
(57.91mm)
90th Driest Driest since: 1988 1964
38th Wettest Wettest since: 1989 1989
Ties: 1937
Apr–Sep 1990
6-Month
25.82"
(655.83mm)
23.18"
(588.77mm)
2.64"
(67.06mm)
91st Driest Driest since: 1988 1986
37th Wettest Wettest since: 1989 1989
Ties: 1972
Mar–Sep 1990
7-Month
29.12"
(739.65mm)
27.16"
(689.86mm)
1.96"
(49.79mm)
87th Driest Driest since: 1988 1986
41st Wettest Wettest since: 1989 1989
Feb–Sep 1990
8-Month
31.06"
(788.92mm)
30.20"
(767.08mm)
0.86"
(21.84mm)
73rd Driest Driest since: 1988 1930
55th Wettest Wettest since: 1989 1989
Jan–Sep 1990
9-Month
34.69"
(881.13mm)
33.69"
(855.73mm)
1.00"
(25.40mm)
74th Driest Driest since: 1988 1930
54th Wettest Wettest since: 1989 1989
Ties: 1915
Dec 1989–Sep 1990
10-Month
36.10"
(916.94mm)
37.15"
(943.61mm)
-1.05"
(-26.67mm)
51st Driest Driest since: 1988 1986
76th Wettest Wettest since: 1989 1958
Nov 1989–Sep 1990
11-Month
39.07"
(992.38mm)
40.22"
(1,021.59mm)
-1.15"
(-29.21mm)
58th Driest Driest since: 1988 1930
69th Wettest Wettest since: 1989 1958
Oct 1989–Sep 1990
12-Month
43.06"
(1,093.72mm)
43.37"
(1,101.60mm)
-0.31"
(-7.88mm)
61st Driest Driest since: 1988 1986
66th Wettest Wettest since: 1989 2003
Apr 1989–Sep 1990
18-Month
79.10"
(2,009.14mm)
66.48"
(1,688.59mm)
12.62"
(320.55mm)
115th Driest Driest since: 1989 1966
12th Wettest Wettest since: 1938 2010
Oct 1988–Sep 1990
24-Month
99.63"
(2,530.60mm)
86.63"
(2,200.40mm)
13.00"
(330.20mm)
115th Driest Driest since: 1989 1966
11th Wettest Wettest since: 1984 2004
Oct 1987–Sep 1990
36-Month
139.06"
(3,532.12mm)
129.92"
(3,299.97mm)
9.14"
(232.15mm)
93rd Driest Driest since: 1989 1966
32nd Wettest Wettest since: 1985 1935
Oct 1986–Sep 1990
48-Month
180.68"
(4,589.27mm)
173.15"
(4,398.01mm)
7.53"
(191.26mm)
81st Driest Driest since: 1989 1966
43rd Wettest Wettest since: 1981 1936
Oct 1985–Sep 1990
60-Month
210.93"
(5,357.62mm)
216.34"
(5,495.04mm)
-5.41"
(-137.42mm)
33rd Driest Driest since: 1989 1966
90th Wettest Wettest since: 1987 1937

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2021, retrieved on October 25, 2021 from https://www.ncdc.noaa.gov/cag/