Divisional Rankings

Divisional Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Iowa, Climate Division 9. Southeast

Precipitation Rankings, December 1940

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
December 1940
1-Month
1.62"
(41.15mm)
1.51"
(38.35mm)
0.11"
(2.80mm)
72nd Driest
Driest since:
1976
56th Wettest
Wettest since:
2015
Ties: 1897
Nov–Dec 1940
2-Month
3.51"
(89.15mm)
3.62"
(91.95mm)
-0.11"
(-2.80mm)
71st Driest
Driest since:
1976
57th Wettest
Wettest since:
2015
Ties: 1997
Oct–Dec 1940
3-Month
5.72"
(145.29mm)
6.23"
(158.24mm)
-0.51"
(-12.95mm)
52nd Driest
Driest since:
1910
76th Wettest
Wettest since:
1941
Sep–Dec 1940
4-Month
5.92"
(150.37mm)
10.15"
(257.81mm)
-4.23"
(-107.44mm)
14th Driest
Driest since:
1950
114th Wettest
Wettest since:
1961
Aug–Dec 1940
5-Month
12.66"
(321.56mm)
13.87"
(352.30mm)
-1.21"
(-30.74mm)
53rd Driest
Driest since:
1953
75th Wettest
Wettest since:
1970
Ties: 1947, 1969
Jul–Dec 1940
6-Month
15.93"
(404.62mm)
17.85"
(453.39mm)
-1.92"
(-48.77mm)
46th Driest
Driest since:
1953
82nd Wettest
Wettest since:
1902
Jun–Dec 1940
7-Month
17.92"
(455.17mm)
22.46"
(570.48mm)
-4.54"
(-115.31mm)
28th Driest
Driest since:
1953
100th Wettest
Wettest since:
1902
May–Dec 1940
8-Month
20.25"
(514.35mm)
26.50"
(673.10mm)
-6.25"
(-158.75mm)
17th Driest
Driest since:
1953
111th Wettest
Wettest since:
2010
Apr–Dec 1940
9-Month
23.89"
(606.81mm)
29.84"
(757.94mm)
-5.95"
(-151.13mm)
15th Driest
Driest since:
1953
113th Wettest
Wettest since:
2010
Ties: 1933
Mar–Dec 1940
10-Month
25.78"
(654.81mm)
32.19"
(817.63mm)
-6.41"
(-162.82mm)
14th Driest
Driest since:
1901
114th Wettest
Wettest since:
2010
Feb–Dec 1940
11-Month
26.95"
(684.53mm)
33.42"
(848.87mm)
-6.47"
(-164.34mm)
13th Driest
Driest since:
1901
115th Wettest
Wettest since:
2010
Jan–Dec 1940
12-Month
27.94"
(709.68mm)
34.75"
(882.65mm)
-6.81"
(-172.97mm)
11th Driest
Driest since:
1901
117th Wettest
Wettest since:
2010
Jul 1939–Dec 1940
18-Month
41.15"
(1,045.21mm)
52.63"
(1,336.80mm)
-11.48"
(-291.59mm)
10th Driest
Driest since:
1956
117th Wettest
Wettest since:
2010
Jan 1939–Dec 1940
24-Month
59.46"
(1,510.28mm)
69.50"
(1,765.30mm)
-10.04"
(-255.02mm)
17th Driest
Driest since:
1989
110th Wettest
Wettest since:
2010
Jan 1938–Dec 1940
36-Month
96.75"
(2,457.45mm)
104.23"
(2,647.44mm)
-7.48"
(-189.99mm)
26th Driest
Driest since:
1989
100th Wettest
Wettest since:
2010
Jan 1937–Dec 1940
48-Month
124.76"
(3,168.90mm)
138.86"
(3,527.04mm)
-14.10"
(-358.14mm)
15th Driest
Driest since:
1956
110th Wettest
Wettest since:
2010
Jan 1936–Dec 1940
60-Month
150.79"
(3,830.07mm)
173.41"
(4,404.61mm)
-22.62"
(-574.54mm)
7th Driest
Driest since:
1956
117th Wettest
Wettest since:
2011

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