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 2019. For more information, please see Climatological Rankings.


Iowa

Precipitation Rankings, December 1939

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
(1895-2018)
Wettest/Driest
Since
Record
December 1939
1-Month
0.60"
(15.24mm)
1.11"
(28.19mm)
-0.51"
(-12.95mm)
27th Driest Driest since: 1934 2002
98th Wettest Wettest since: 1938 2015
Nov–Dec 1939
2-Month
1.09"
(27.69mm)
2.87"
(72.90mm)
-1.78"
(-45.21mm)
11th Driest Driest since: 1917 1976
114th Wettest Wettest since: 1938 2015
Oct–Dec 1939
3-Month
2.57"
(65.28mm)
5.16"
(131.06mm)
-2.59"
(-65.78mm)
8th Driest Driest since: 1917 1910
117th Wettest Wettest since: 1938 1931
Sep–Dec 1939
4-Month
3.41"
(86.61mm)
8.83"
(224.28mm)
-5.42"
(-137.67mm)
1st Driest Driest to Date 1939, 1976
124th Wettest Wettest since: 1938 1931
Ties: 1976
Aug–Dec 1939
5-Month
8.08"
(205.23mm)
12.67"
(321.82mm)
-4.59"
(-116.59mm)
9th Driest Driest since: 1917 1976
116th Wettest Wettest since: 1938 2018
Jul–Dec 1939
6-Month
11.28"
(286.51mm)
16.52"
(419.61mm)
-5.24"
(-133.10mm)
11th Driest Driest since: 1930 1976
114th Wettest Wettest since: 1938 2018
Jun–Dec 1939
7-Month
16.20"
(411.48mm)
21.15"
(537.21mm)
-4.95"
(-125.73mm)
13th Driest Driest since: 1937 1976
112th Wettest Wettest since: 1938 2018
May–Dec 1939
8-Month
18.24"
(463.30mm)
25.20"
(640.08mm)
-6.96"
(-176.78mm)
8th Driest Driest since: 1910 1976
117th Wettest Wettest since: 1938 1993
Apr–Dec 1939
9-Month
20.24"
(514.10mm)
28.15"
(715.01mm)
-7.91"
(-200.91mm)
7th Driest Driest since: 1933 1910
118th Wettest Wettest since: 1938 1993
Mar–Dec 1939
10-Month
21.87"
(555.50mm)
30.10"
(764.54mm)
-8.23"
(-209.04mm)
4th Driest Driest since: 1910 1910
121st Wettest Wettest since: 1938 1993
Feb–Dec 1939
11-Month
23.64"
(600.46mm)
31.12"
(790.45mm)
-7.48"
(-189.99mm)
6th Driest Driest since: 1933 1910
119th Wettest Wettest since: 1938 1993
Jan–Dec 1939
12-Month
24.50"
(622.30mm)
32.09"
(815.09mm)
-7.59"
(-192.79mm)
6th Driest Driest since: 1933 1910
119th Wettest Wettest since: 1938 1993
Ties: 1901, 1933
Jul 1938–Dec 1939
18-Month
42.76"
(1,086.10mm)
48.69"
(1,236.73mm)
-5.93"
(-150.63mm)
24th Driest Driest since: 1937 1956
100th Wettest Wettest since: 1938 1993
Jan 1938–Dec 1939
24-Month
60.82"
(1,544.83mm)
64.24"
(1,631.70mm)
-3.42"
(-86.87mm)
40th Driest Driest since: 1937 1989
84th Wettest Wettest since: 1938 2008
Jan 1937–Dec 1939
36-Month
88.32"
(2,243.33mm)
96.36"
(2,447.54mm)
-8.04"
(-204.21mm)
16th Driest Driest since: 1937 1957
107th Wettest Wettest since: 1938 2010
Jan 1936–Dec 1939
48-Month
113.86"
(2,892.04mm)
128.37"
(3,260.60mm)
-14.51"
(-368.56mm)
8th Driest Driest since: 1937 1958
114th Wettest Wettest since: 1938 2010
Jan 1935–Dec 1939
60-Month
146.39"
(3,718.31mm)
160.36"
(4,073.14mm)
-13.97"
(-354.83mm)
12th Driest Driest since: 1937 1956
109th Wettest Wettest since: 1938 2010

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published November 2019, retrieved on December 5, 2019 from https://www.ncdc.noaa.gov/cag/