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 August 2022. For more information, please see Climatological Rankings.


Delaware

Precipitation Rankings, September 1947

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 1947
1-Month
3.48"
(88.39mm)
3.60"
(91.44mm)
-0.12"
(-3.05mm)
67th Driest Driest since: 1946 1941
61st Wettest Wettest since: 1945 1935
Ties: 1923
Aug–Sep 1947
2-Month
6.48"
(164.59mm)
8.19"
(208.03mm)
-1.71"
(-43.44mm)
40th Driest Driest since: 1943 2005
88th Wettest Wettest since: 1946 1928
Jul–Sep 1947
3-Month
9.93"
(252.22mm)
12.51"
(317.75mm)
-2.58"
(-65.53mm)
35th Driest Driest since: 1943 1968
93rd Wettest Wettest since: 1946 1938
Jun–Sep 1947
4-Month
13.22"
(335.79mm)
16.14"
(409.96mm)
-2.92"
(-74.17mm)
32nd Driest Driest since: 1943 1968
96th Wettest Wettest since: 1946 1938
May–Sep 1947
5-Month
18.63"
(473.20mm)
19.70"
(500.38mm)
-1.07"
(-27.18mm)
53rd Driest Driest since: 1944 1964
75th Wettest Wettest since: 1946 1989
Apr–Sep 1947
6-Month
22.30"
(566.42mm)
23.18"
(588.77mm)
-0.88"
(-22.35mm)
61st Driest Driest since: 1944 1986
67th Wettest Wettest since: 1946 1989
Mar–Sep 1947
7-Month
24.09"
(611.89mm)
27.16"
(689.86mm)
-3.07"
(-77.97mm)
34th Driest Driest since: 1943 1986
94th Wettest Wettest since: 1946 1989
Ties: 2010
Feb–Sep 1947
8-Month
25.45"
(646.43mm)
30.20"
(767.08mm)
-4.75"
(-120.65mm)
22nd Driest Driest since: 1943 1930
106th Wettest Wettest since: 1946 1989
Jan–Sep 1947
9-Month
30.16"
(766.06mm)
33.69"
(855.73mm)
-3.53"
(-89.67mm)
32nd Driest Driest since: 1943 1930
96th Wettest Wettest since: 1946 1989
Dec 1946–Sep 1947
10-Month
32.24"
(818.90mm)
37.15"
(943.61mm)
-4.91"
(-124.71mm)
26th Driest Driest since: 1943 1986
101st Wettest Wettest since: 1946 1958
Nov 1946–Sep 1947
11-Month
34.07"
(865.38mm)
40.22"
(1,021.59mm)
-6.15"
(-156.21mm)
19th Driest Driest since: 1943 1930
108th Wettest Wettest since: 1946 1958
Oct 1946–Sep 1947
12-Month
36.06"
(915.92mm)
43.37"
(1,101.60mm)
-7.31"
(-185.68mm)
14th Driest Driest since: 1930 1986
113th Wettest Wettest since: 1946 2003
Apr 1946–Sep 1947
18-Month
59.85"
(1,520.19mm)
66.48"
(1,688.59mm)
-6.63"
(-168.40mm)
24th Driest Driest since: 1943 1966
103rd Wettest Wettest since: 1946 2010
Oct 1945–Sep 1947
24-Month
80.54"
(2,045.72mm)
86.63"
(2,200.40mm)
-6.09"
(-154.68mm)
30th Driest Driest since: 1944 1966
96th Wettest Wettest since: 1946 2004
Oct 1944–Sep 1947
36-Month
130.72"
(3,320.29mm)
129.92"
(3,299.97mm)
0.80"
(20.32mm)
57th Driest Driest since: 1945 1966
68th Wettest Wettest since: 1946 1935
Oct 1943–Sep 1947
48-Month
174.05"
(4,420.87mm)
173.15"
(4,398.01mm)
0.90"
(22.86mm)
52nd Driest Driest since: 1945 1966
72nd Wettest Wettest since: 1946 1936
Oct 1942–Sep 1947
60-Month
211.25"
(5,365.75mm)
216.34"
(5,495.04mm)
-5.09"
(-129.29mm)
35th Driest Driest since: 1945 1966
88th Wettest Wettest since: 1946 1937

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, Precipitation, published September 2022, retrieved on September 29, 2022 from https://www.ncdc.noaa.gov/cag/