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 2019. For more information, please see Climatological Rankings.


Delaware

Precipitation Rankings, July 1940

View Period (Months):All1234567891011121824364860
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
July 1940
1-Month
2.56"
(65.02mm)
4.31"
(109.47mm)
-1.75"
(-44.45mm)
24th Driest Driest since: 1932 1974
102nd Wettest Wettest since: 1939 1938
Jun–Jul 1940
2-Month
4.33"
(109.98mm)
7.95"
(201.93mm)
-3.62"
(-91.95mm)
4th Driest Driest to Date 1949
122nd Wettest Wettest since: 1939 2013
May–Jul 1940
3-Month
9.66"
(245.36mm)
11.50"
(292.10mm)
-1.84"
(-46.74mm)
36th Driest Driest since: 1939 1964
90th Wettest Wettest since: 1938 1989
Apr–Jul 1940
4-Month
15.17"
(385.32mm)
14.98"
(380.49mm)
0.19"
(4.83mm)
59th Driest Driest since: 1939 1986
67th Wettest Wettest since: 1938 1989
Mar–Jul 1940
5-Month
19.14"
(486.16mm)
18.96"
(481.58mm)
0.18"
(4.58mm)
65th Driest Driest since: 1939 1986
61st Wettest Wettest since: 1938 1989
Feb–Jul 1940
6-Month
22.17"
(563.12mm)
22.01"
(559.05mm)
0.16"
(4.07mm)
68th Driest Driest since: 1936 1986
58th Wettest Wettest since: 1939 1989
Ties: 1899
Jan–Jul 1940
7-Month
24.67"
(626.62mm)
25.50"
(647.70mm)
-0.83"
(-21.08mm)
60th Driest Driest since: 1931 1977
66th Wettest Wettest since: 1939 1989
Dec 1939–Jul 1940
8-Month
26.21"
(665.73mm)
28.96"
(735.58mm)
-2.75"
(-69.85mm)
36th Driest Driest since: 1931 1986
89th Wettest Wettest since: 1939 1958
Nov 1939–Jul 1940
9-Month
27.78"
(705.61mm)
32.02"
(813.31mm)
-4.24"
(-107.70mm)
29th Driest Driest since: 1931 1977
96th Wettest Wettest since: 1939 1984
Oct 1939–Jul 1940
10-Month
32.13"
(816.10mm)
35.18"
(893.57mm)
-3.05"
(-77.47mm)
33rd Driest Driest since: 1931 2002
92nd Wettest Wettest since: 1939 2003
Sep 1939–Jul 1940
11-Month
34.72"
(881.89mm)
38.77"
(984.76mm)
-4.05"
(-102.87mm)
27th Driest Driest since: 1931 2002
98th Wettest Wettest since: 1939 2003
Aug 1939–Jul 1940
12-Month
42.56"
(1,081.02mm)
43.35"
(1,101.09mm)
-0.79"
(-20.07mm)
57th Driest Driest since: 1931 1985
68th Wettest Wettest since: 1939 2003
Feb 1939–Jul 1940
18-Month
66.37"
(1,685.80mm)
65.29"
(1,658.37mm)
1.08"
(27.43mm)
66th Driest Driest since: 1932 1931
59th Wettest Wettest since: 1939 1984
Aug 1938–Jul 1940
24-Month
89.57"
(2,275.08mm)
86.54"
(2,198.12mm)
3.03"
(76.96mm)
74th Driest Driest since: 1932 1931
50th Wettest Wettest since: 1939 2004
Aug 1937–Jul 1940
36-Month
140.80"
(3,576.32mm)
129.85"
(3,298.19mm)
10.95"
(278.13mm)
104th Driest Driest since: 1934 1966
19th Wettest Wettest since: 1939 2005
Aug 1936–Jul 1940
48-Month
191.52"
(4,864.61mm)
173.06"
(4,395.72mm)
18.46"
(468.89mm)
114th Driest Driest since: 1935 1966
8th Wettest Wettest since: 1939 1938
Aug 1935–Jul 1940
60-Month
245.28"
(6,230.11mm)
216.21"
(5,491.73mm)
29.07"
(738.38mm)
117th Driest Driest since: 1936 1966
4th Wettest Wettest since: 1939 1938

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published October 2019, retrieved on October 23, 2019 from https://www.ncdc.noaa.gov/cag/