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


Delaware

Precipitation Rankings, September 1981

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Driest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
September 1981
1-Month
4.11"
(104.39mm)
3.60"
(91.44mm)
0.51"
(12.95mm)
85th Driest Driest since: 1980 1941
43rd Wettest Wettest since: 1979 1935
Aug–Sep 1981
2-Month
7.59"
(192.79mm)
8.19"
(208.03mm)
-0.60"
(-15.24mm)
56th Driest Driest since: 1980 2005
72nd Wettest Wettest since: 1979 1928
Jul–Sep 1981
3-Month
10.01"
(254.25mm)
12.51"
(317.75mm)
-2.50"
(-63.50mm)
39th Driest Driest since: 1980 1968
89th Wettest Wettest since: 1979 1938
Ties: 1941
Jun–Sep 1981
4-Month
13.95"
(354.33mm)
16.14"
(409.96mm)
-2.19"
(-55.63mm)
44th Driest Driest since: 1980 1968
84th Wettest Wettest since: 1979 1938
May–Sep 1981
5-Month
18.86"
(479.04mm)
19.70"
(500.38mm)
-0.84"
(-21.34mm)
56th Driest Driest since: 1980 1964
72nd Wettest Wettest since: 1979 1989
Ties: 2008
Apr–Sep 1981
6-Month
23.15"
(588.01mm)
23.18"
(588.77mm)
-0.03"
(-0.76mm)
68th Driest Driest since: 1980 1986
60th Wettest Wettest since: 1979 1989
Mar–Sep 1981
7-Month
24.92"
(632.97mm)
27.16"
(689.86mm)
-2.24"
(-56.89mm)
40th Driest Driest since: 1977 1986
88th Wettest Wettest since: 1980 1989
Feb–Sep 1981
8-Month
28.48"
(723.39mm)
30.20"
(767.08mm)
-1.72"
(-43.69mm)
45th Driest Driest since: 1980 1930
83rd Wettest Wettest since: 1979 1989
Jan–Sep 1981
9-Month
29.00"
(736.60mm)
33.69"
(855.73mm)
-4.69"
(-119.13mm)
25th Driest Driest since: 1977 1930
103rd Wettest Wettest since: 1980 1989
Dec 1980–Sep 1981
10-Month
29.79"
(756.67mm)
37.15"
(943.61mm)
-7.36"
(-186.94mm)
14th Driest Driest since: 1977 1986
113th Wettest Wettest since: 1980 1958
Nov 1980–Sep 1981
11-Month
32.41"
(823.21mm)
40.22"
(1,021.59mm)
-7.81"
(-198.38mm)
11th Driest Driest since: 1977 1930
116th Wettest Wettest since: 1980 1958
Oct 1980–Sep 1981
12-Month
38.18"
(969.77mm)
43.37"
(1,101.60mm)
-5.19"
(-131.83mm)
25th Driest Driest since: 1977 1986
102nd Wettest Wettest since: 1980 2003
Apr 1980–Sep 1981
18-Month
57.53"
(1,461.26mm)
66.48"
(1,688.59mm)
-8.95"
(-227.33mm)
16th Driest Driest since: 1977 1966
111th Wettest Wettest since: 1980 2010
Oct 1979–Sep 1981
24-Month
77.60"
(1,971.04mm)
86.63"
(2,200.40mm)
-9.03"
(-229.36mm)
20th Driest Driest since: 1977 1966
106th Wettest Wettest since: 1980 2004
Oct 1978–Sep 1981
36-Month
132.84"
(3,374.14mm)
129.92"
(3,299.97mm)
2.92"
(74.17mm)
67th Driest Driest since: 1978 1966
58th Wettest Wettest since: 1980 1935
Oct 1977–Sep 1981
48-Month
186.09"
(4,726.69mm)
173.15"
(4,398.01mm)
12.94"
(328.68mm)
105th Driest Driest since: 1980 1966
19th Wettest Wettest since: 1975 1936
Oct 1976–Sep 1981
60-Month
222.02"
(5,639.31mm)
216.34"
(5,495.04mm)
5.68"
(144.27mm)
71st Driest Driest since: 1980 1966
52nd Wettest Wettest since: 1979 1937
Ties: 1999

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2021, retrieved on December 5, 2021 from https://www.ncdc.noaa.gov/cag/