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, October 1981

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
October 1981
1-Month
2.54"
(64.52mm)
2.29"
(58.17mm)
0.25"
(6.35mm)
72nd Driest
Driest since:
1952
57th Wettest
Wettest since:
2009
Sep–Oct 1981
2-Month
5.13"
(130.30mm)
5.96"
(151.38mm)
-0.83"
(-21.08mm)
49th Driest
Driest since:
1952
80th Wettest
Wettest since:
1941
Aug–Oct 1981
3-Month
10.28"
(261.11mm)
9.80"
(248.92mm)
0.48"
(12.19mm)
75th Driest
Driest since:
1953
54th Wettest
Wettest since:
2018
Jul–Oct 1981
4-Month
15.20"
(386.08mm)
13.66"
(346.96mm)
1.54"
(39.12mm)
88th Driest
Driest since:
1953, 1976
41st Wettest
Wettest since:
1993
Jun–Oct 1981
5-Month
20.63"
(524.00mm)
18.29"
(464.57mm)
2.34"
(59.43mm)
94th Driest
Driest since:
1976
35th Wettest
Wettest since:
1993
May–Oct 1981
6-Month
23.17"
(588.52mm)
22.33"
(567.18mm)
0.84"
(21.34mm)
76th Driest
Driest since:
1976
53rd Wettest
Wettest since:
1993
Apr–Oct 1981
7-Month
26.58"
(675.13mm)
25.28"
(642.11mm)
1.30"
(33.02mm)
76th Driest
Driest since:
1988
53rd Wettest
Wettest since:
1993
Mar–Oct 1981
8-Month
27.33"
(694.18mm)
27.23"
(691.64mm)
0.10"
(2.54mm)
61st Driest
Driest since:
1988
68th Wettest
Wettest since:
1993
Feb–Oct 1981
9-Month
28.74"
(730.00mm)
28.25"
(717.55mm)
0.49"
(12.45mm)
71st Driest
Driest since:
1988
58th Wettest
Wettest since:
1993
Ties: 1943
Jan–Oct 1981
10-Month
28.84"
(732.54mm)
29.23"
(742.44mm)
-0.39"
(-9.90mm)
60th Driest
Driest since:
1988
69th Wettest
Wettest since:
1993
Dec 1980–Oct 1981
11-Month
29.93"
(760.22mm)
30.33"
(770.38mm)
-0.40"
(-10.16mm)
62nd Driest
Driest since:
1988
66th Wettest
Wettest since:
1993
Nov 1980–Oct 1981
12-Month
30.36"
(771.14mm)
32.07"
(814.58mm)
-1.71"
(-43.44mm)
45th Driest
Driest since:
1956
83rd Wettest
Wettest since:
1993
May 1980–Oct 1981
18-Month
53.43"
(1,357.12mm)
54.47"
(1,383.54mm)
-1.04"
(-26.42mm)
56th Driest
Driest since:
1956
72nd Wettest
Wettest since:
2019
Nov 1979–Oct 1981
24-Month
60.32"
(1,532.13mm)
64.23"
(1,631.44mm)
-3.91"
(-99.31mm)
34th Driest
Driest since:
1956
93rd Wettest
Wettest since:
1993
Nov 1978–Oct 1981
36-Month
95.71"
(2,431.03mm)
96.34"
(2,447.04mm)
-0.63"
(-16.01mm)
55th Driest
Driest since:
1957
71st Wettest
Wettest since:
2010
Nov 1977–Oct 1981
48-Month
129.13"
(3,279.90mm)
128.36"
(3,260.34mm)
0.77"
(19.56mm)
62nd Driest
Driest since:
1958
63rd Wettest
Wettest since:
2010
Nov 1976–Oct 1981
60-Month
163.42"
(4,150.87mm)
160.34"
(4,072.64mm)
3.08"
(78.23mm)
69th Driest
Driest since:
1956
55th Wettest
Wettest since:
2010

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