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 1970

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 1970
1-Month
1.02"
(25.91mm)
3.60"
(91.44mm)
-2.58"
(-65.53mm)
5th Driest Driest since: 1941 1941
123rd Wettest Wettest since: 1969 1935
Aug–Sep 1970
2-Month
3.69"
(93.73mm)
8.19"
(208.03mm)
-4.50"
(-114.30mm)
6th Driest Driest since: 1968 2005
122nd Wettest Wettest since: 1969 1928
Jul–Sep 1970
3-Month
8.18"
(207.77mm)
12.50"
(317.50mm)
-4.32"
(-109.73mm)
11th Driest Driest since: 1968 1968
117th Wettest Wettest since: 1969 1938
Jun–Sep 1970
4-Month
13.80"
(350.52mm)
16.14"
(409.96mm)
-2.34"
(-59.44mm)
41st Driest Driest since: 1968 1968
87th Wettest Wettest since: 1969 1938
May–Sep 1970
5-Month
16.25"
(412.75mm)
19.70"
(500.38mm)
-3.45"
(-87.63mm)
31st Driest Driest since: 1968 1964
97th Wettest Wettest since: 1969 1989
Apr–Sep 1970
6-Month
21.08"
(535.43mm)
23.18"
(588.77mm)
-2.10"
(-53.34mm)
44th Driest Driest since: 1968 1986
84th Wettest Wettest since: 1969 1989
Mar–Sep 1970
7-Month
25.08"
(637.03mm)
27.16"
(689.86mm)
-2.08"
(-52.83mm)
42nd Driest Driest since: 1968 1986
86th Wettest Wettest since: 1969 1989
Feb–Sep 1970
8-Month
27.50"
(698.50mm)
30.20"
(767.08mm)
-2.70"
(-68.58mm)
39th Driest Driest since: 1968 1930
89th Wettest Wettest since: 1969 1989
Jan–Sep 1970
9-Month
29.19"
(741.43mm)
33.69"
(855.73mm)
-4.50"
(-114.30mm)
27th Driest Driest since: 1968 1930
101st Wettest Wettest since: 1969 1989
Dec 1969–Sep 1970
10-Month
36.74"
(933.20mm)
37.15"
(943.61mm)
-0.41"
(-10.41mm)
62nd Driest Driest since: 1969 1986
65th Wettest Wettest since: 1967 1958
Nov 1969–Sep 1970
11-Month
38.99"
(990.35mm)
40.22"
(1,021.59mm)
-1.23"
(-31.24mm)
56th Driest Driest since: 1968 1930
71st Wettest Wettest since: 1969 1958
Ties: 2005
Oct 1969–Sep 1970
12-Month
40.32"
(1,024.13mm)
43.37"
(1,101.60mm)
-3.05"
(-77.47mm)
47th Driest Driest since: 1968 1986
80th Wettest Wettest since: 1969 2003
Apr 1969–Sep 1970
18-Month
66.24"
(1,682.50mm)
66.48"
(1,688.59mm)
-0.24"
(-6.09mm)
62nd Driest Driest since: 1969 1966
65th Wettest Wettest since: 1967 2010
Oct 1968–Sep 1970
24-Month
83.40"
(2,118.36mm)
86.63"
(2,200.40mm)
-3.23"
(-82.04mm)
44th Driest Driest since: 1969 1966
82nd Wettest Wettest since: 1961 2004
Oct 1967–Sep 1970
36-Month
116.31"
(2,954.27mm)
129.92"
(3,299.97mm)
-13.61"
(-345.70mm)
13th Driest Driest since: 1968 1966
112th Wettest Wettest since: 1969 1935
Oct 1966–Sep 1970
48-Month
164.31"
(4,173.47mm)
173.15"
(4,398.01mm)
-8.84"
(-224.54mm)
20th Driest Driest since: 1969 1966
104th Wettest Wettest since: 1963 1936
Oct 1965–Sep 1970
60-Month
196.18"
(4,982.97mm)
216.34"
(5,495.04mm)
-20.16"
(-512.07mm)
8th Driest Driest since: 1969 1966
115th Wettest Wettest since: 1964 1937

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2022, retrieved on January 22, 2022 from https://www.ncdc.noaa.gov/cag/