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 December 2021. For more information, please see Climatological Rankings.


Delaware

Precipitation Rankings, September 1940

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 1940
1-Month
2.98"
(75.69mm)
3.60"
(91.44mm)
-0.62"
(-15.75mm)
56th Driest Driest since: 1939 1941
72nd Wettest Wettest since: 1938 1935
Aug–Sep 1940
2-Month
7.80"
(198.12mm)
8.19"
(208.03mm)
-0.39"
(-9.91mm)
63rd Driest Driest since: 1932 2005
65th Wettest Wettest since: 1939 1928
Jul–Sep 1940
3-Month
10.36"
(263.14mm)
12.50"
(317.50mm)
-2.14"
(-54.36mm)
42nd Driest Driest since: 1932 1968
86th Wettest Wettest since: 1939 1938
Jun–Sep 1940
4-Month
12.13"
(308.10mm)
16.14"
(409.96mm)
-4.01"
(-101.86mm)
20th Driest Driest since: 1932 1968
108th Wettest Wettest since: 1939 1938
May–Sep 1940
5-Month
17.46"
(443.48mm)
19.70"
(500.38mm)
-2.24"
(-56.90mm)
42nd Driest Driest since: 1932 1964
86th Wettest Wettest since: 1939 1989
Apr–Sep 1940
6-Month
22.97"
(583.44mm)
23.18"
(588.77mm)
-0.21"
(-5.33mm)
64th Driest Driest since: 1936 1986
64th Wettest Wettest since: 1939 1989
Mar–Sep 1940
7-Month
26.94"
(684.28mm)
27.16"
(689.86mm)
-0.22"
(-5.58mm)
60th Driest Driest since: 1932 1986
68th Wettest Wettest since: 1939 1989
Feb–Sep 1940
8-Month
29.97"
(761.24mm)
30.20"
(767.08mm)
-0.23"
(-5.84mm)
68th Driest Driest since: 1932 1930
60th Wettest Wettest since: 1939 1989
Jan–Sep 1940
9-Month
32.47"
(824.74mm)
33.69"
(855.73mm)
-1.22"
(-30.99mm)
56th Driest Driest since: 1932 1930
72nd Wettest Wettest since: 1939 1989
Dec 1939–Sep 1940
10-Month
34.01"
(863.85mm)
37.15"
(943.61mm)
-3.14"
(-79.76mm)
39th Driest Driest since: 1932 1986
88th Wettest Wettest since: 1939 1958
Nov 1939–Sep 1940
11-Month
35.58"
(903.73mm)
40.22"
(1,021.59mm)
-4.64"
(-117.86mm)
34th Driest Driest since: 1932 1930
93rd Wettest Wettest since: 1939 1958
Oct 1939–Sep 1940
12-Month
39.93"
(1,014.22mm)
43.37"
(1,101.60mm)
-3.44"
(-87.38mm)
41st Driest Driest since: 1932 1986
86th Wettest Wettest since: 1939 2003
Apr 1939–Sep 1940
18-Month
63.45"
(1,611.63mm)
66.48"
(1,688.59mm)
-3.03"
(-76.96mm)
51st Driest Driest since: 1932 1966
76th Wettest Wettest since: 1939 2010
Oct 1938–Sep 1940
24-Month
86.50"
(2,197.10mm)
86.63"
(2,200.40mm)
-0.13"
(-3.30mm)
57th Driest Driest since: 1932 1966
69th Wettest Wettest since: 1939 2004
Oct 1937–Sep 1940
36-Month
139.01"
(3,530.85mm)
129.92"
(3,299.97mm)
9.09"
(230.88mm)
92nd Driest Driest since: 1933 1966
33rd Wettest Wettest since: 1939 1935
Oct 1936–Sep 1940
48-Month
189.26"
(4,807.20mm)
173.15"
(4,398.01mm)
16.11"
(409.19mm)
109th Driest Driest since: 1934 1966
15th Wettest Wettest since: 1939 1936
Oct 1935–Sep 1940
60-Month
237.74"
(6,038.60mm)
216.34"
(5,495.04mm)
21.40"
(543.56mm)
111th Driest Driest since: 1935 1966
12th Wettest Wettest since: 1939 1937

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2022, retrieved on January 24, 2022 from https://www.ncdc.noaa.gov/cag/