Statewide Rankings

Statewide 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

Precipitation Rankings, November 1939

View Period (Months):
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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
November 1939
1-Month
0.49"
(12.45mm)
1.75"
(44.45mm)
-1.26"
(-32.00mm)
15th Driest
Driest since:
1976
113th Wettest
Wettest since:
1931
Ties: 1966
Oct–Nov 1939
2-Month
1.97"
(50.04mm)
4.04"
(102.62mm)
-2.07"
(-52.58mm)
16th Driest
Driest since:
1910
112th Wettest
Wettest since:
1931
Sep–Nov 1939
3-Month
2.81"
(71.37mm)
7.71"
(195.83mm)
-4.90"
(-124.46mm)
2nd Driest
Driest since:
1953
126th Wettest
Wettest since:
1931
Aug–Nov 1939
4-Month
7.48"
(189.99mm)
11.55"
(293.37mm)
-4.07"
(-103.38mm)
9th Driest
Driest since:
1976
119th Wettest
Wettest since:
2018
Jul–Nov 1939
5-Month
10.68"
(271.27mm)
15.41"
(391.41mm)
-4.73"
(-120.14mm)
11th Driest
Driest since:
1976
117th Wettest
Wettest since:
1993
Jun–Nov 1939
6-Month
15.60"
(396.24mm)
20.04"
(509.02mm)
-4.44"
(-112.78mm)
15th Driest
Driest since:
1976
113th Wettest
Wettest since:
1993
May–Nov 1939
7-Month
17.64"
(448.06mm)
24.09"
(611.89mm)
-6.45"
(-163.83mm)
9th Driest
Driest since:
1976
119th Wettest
Wettest since:
1993
Apr–Nov 1939
8-Month
19.64"
(498.86mm)
27.03"
(686.56mm)
-7.39"
(-187.70mm)
9th Driest
Driest since:
1910
119th Wettest
Wettest since:
1993
Mar–Nov 1939
9-Month
21.27"
(540.26mm)
28.99"
(736.35mm)
-7.72"
(-196.09mm)
5th Driest
Driest since:
1910
123rd Wettest
Wettest since:
1993
Feb–Nov 1939
10-Month
23.04"
(585.22mm)
30.00"
(762.00mm)
-6.96"
(-176.78mm)
8th Driest
Driest since:
1910
120th Wettest
Wettest since:
1993
Jan–Nov 1939
11-Month
23.90"
(607.06mm)
30.98"
(786.89mm)
-7.08"
(-179.83mm)
8th Driest
Driest since:
1910
120th Wettest
Wettest since:
1993
Dec 1938–Nov 1939
12-Month
24.59"
(624.59mm)
32.08"
(814.83mm)
-7.49"
(-190.24mm)
7th Driest
Driest since:
1910
120th Wettest
Wettest since:
1993
Jun 1938–Nov 1939
18-Month
46.73"
(1,186.94mm)
52.18"
(1,325.37mm)
-5.45"
(-138.43mm)
27th Driest
Driest since:
1956
100th Wettest
Wettest since:
2019
Dec 1937–Nov 1939
24-Month
60.96"
(1,548.38mm)
64.24"
(1,631.70mm)
-3.28"
(-83.32mm)
43rd Driest
Driest since:
1956
83rd Wettest
Wettest since:
2019
Dec 1936–Nov 1939
36-Month
89.23"
(2,266.44mm)
96.35"
(2,447.29mm)
-7.12"
(-180.85mm)
20th Driest
Driest since:
1957
105th Wettest
Wettest since:
2010
Dec 1935–Nov 1939
48-Month
114.20"
(2,900.68mm)
128.38"
(3,260.85mm)
-14.18"
(-360.17mm)
8th Driest
Driest since:
1958
116th Wettest
Wettest since:
2010
Dec 1934–Nov 1939
60-Month
146.38"
(3,718.05mm)
160.36"
(4,073.14mm)
-13.98"
(-355.09mm)
12th Driest
Driest since:
1956
111th Wettest
Wettest since:
2010

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