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 1978

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 1978
1-Month
1.10"
(27.94mm)
3.60"
(91.44mm)
-2.50"
(-63.50mm)
8th Driest Driest since: 1970 1941
120th Wettest Wettest since: 1977 1935
Aug–Sep 1978
2-Month
6.91"
(175.51mm)
8.19"
(208.03mm)
-1.28"
(-32.52mm)
46th Driest Driest since: 1972 2005
82nd Wettest Wettest since: 1977 1928
Jul–Sep 1978
3-Month
11.95"
(303.53mm)
12.50"
(317.50mm)
-0.55"
(-13.97mm)
60th Driest Driest since: 1977 1968
68th Wettest Wettest since: 1975 1938
Jun–Sep 1978
4-Month
14.43"
(366.52mm)
16.14"
(409.96mm)
-1.71"
(-43.44mm)
49th Driest Driest since: 1977 1968
79th Wettest Wettest since: 1975 1938
May–Sep 1978
5-Month
20.57"
(522.48mm)
19.70"
(500.38mm)
0.87"
(22.10mm)
77th Driest Driest since: 1977 1964
51st Wettest Wettest since: 1975 1989
Apr–Sep 1978
6-Month
23.08"
(586.23mm)
23.18"
(588.77mm)
-0.10"
(-2.54mm)
67th Driest Driest since: 1977 1986
61st Wettest Wettest since: 1975 1989
Mar–Sep 1978
7-Month
29.01"
(736.85mm)
27.16"
(689.86mm)
1.85"
(46.99mm)
85th Driest Driest since: 1977 1986
43rd Wettest Wettest since: 1975 1989
Feb–Sep 1978
8-Month
30.10"
(764.54mm)
30.20"
(767.08mm)
-0.10"
(-2.54mm)
69th Driest Driest since: 1977 1930
59th Wettest Wettest since: 1975 1989
Jan–Sep 1978
9-Month
37.11"
(942.59mm)
33.69"
(855.73mm)
3.42"
(86.86mm)
95th Driest Driest since: 1977 1930
33rd Wettest Wettest since: 1975 1989
Dec 1977–Sep 1978
10-Month
44.05"
(1,118.87mm)
37.15"
(943.61mm)
6.90"
(175.26mm)
109th Driest Driest since: 1977 1986
18th Wettest Wettest since: 1975 1958
Nov 1977–Sep 1978
11-Month
49.46"
(1,256.28mm)
40.22"
(1,021.59mm)
9.24"
(234.69mm)
116th Driest Driest since: 1977 1930
11th Wettest Wettest since: 1975 1958
Oct 1977–Sep 1978
12-Month
53.25"
(1,352.55mm)
43.37"
(1,101.60mm)
9.88"
(250.95mm)
119th Driest Driest since: 1977 1986
8th Wettest Wettest since: 1958 2003
Apr 1977–Sep 1978
18-Month
71.00"
(1,803.40mm)
66.48"
(1,688.59mm)
4.52"
(114.81mm)
82nd Driest Driest since: 1977 1966
45th Wettest Wettest since: 1975 2010
Oct 1976–Sep 1978
24-Month
89.18"
(2,265.17mm)
86.63"
(2,200.40mm)
2.55"
(64.77mm)
68th Driest Driest since: 1977 1966
58th Wettest Wettest since: 1975 2004
Oct 1975–Sep 1978
36-Month
125.65"
(3,191.51mm)
129.92"
(3,299.97mm)
-4.27"
(-108.46mm)
40th Driest Driest since: 1977 1966
85th Wettest Wettest since: 1976 1935
Oct 1974–Sep 1978
48-Month
177.65"
(4,512.31mm)
173.15"
(4,398.01mm)
4.50"
(114.30mm)
67th Driest Driest since: 1977 1966
57th Wettest Wettest since: 1976 1936
Oct 1973–Sep 1978
60-Month
219.10"
(5,565.14mm)
216.34"
(5,495.04mm)
2.76"
(70.10mm)
60th Driest Driest since: 1977 1966
63rd Wettest Wettest since: 1976 1937

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2022, retrieved on January 20, 2022 from https://www.ncdc.noaa.gov/cag/