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 1956

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 1956
1-Month
1.40"
(35.56mm)
2.29"
(58.17mm)
-0.89"
(-22.61mm)
30th Driest
Driest since:
1952
99th Wettest
Wettest since:
2009
Sep–Oct 1956
2-Month
2.94"
(74.68mm)
5.96"
(151.38mm)
-3.02"
(-76.70mm)
9th Driest
Driest since:
1952
120th Wettest
Wettest since:
1941
Aug–Oct 1956
3-Month
7.43"
(188.72mm)
9.80"
(248.92mm)
-2.37"
(-60.20mm)
27th Driest
Driest since:
1953
102nd Wettest
Wettest since:
2018
Jul–Oct 1956
4-Month
11.95"
(303.53mm)
13.66"
(346.96mm)
-1.71"
(-43.43mm)
40th Driest
Driest since:
1953, 1976
89th Wettest
Wettest since:
1993
Jun–Oct 1956
5-Month
14.55"
(369.57mm)
18.29"
(464.57mm)
-3.74"
(-95.00mm)
21st Driest
Driest since:
1976
108th Wettest
Wettest since:
1993
May–Oct 1956
6-Month
17.83"
(452.88mm)
22.33"
(567.18mm)
-4.50"
(-114.30mm)
16th Driest
Driest since:
1976
113th Wettest
Wettest since:
1993
Apr–Oct 1956
7-Month
19.81"
(503.17mm)
25.28"
(642.11mm)
-5.47"
(-138.94mm)
14th Driest
Driest since:
1988
115th Wettest
Wettest since:
1993
Mar–Oct 1956
8-Month
20.74"
(526.80mm)
27.23"
(691.64mm)
-6.49"
(-164.84mm)
7th Driest
Driest since:
1988
122nd Wettest
Wettest since:
1993
Feb–Oct 1956
9-Month
21.28"
(540.51mm)
28.25"
(717.55mm)
-6.97"
(-177.04mm)
4th Driest
Driest since:
1988
125th Wettest
Wettest since:
1993
Jan–Oct 1956
10-Month
21.73"
(551.94mm)
29.23"
(742.44mm)
-7.50"
(-190.50mm)
4th Driest
Driest since:
1988
125th Wettest
Wettest since:
1993
Dec 1955–Oct 1956
11-Month
22.22"
(564.39mm)
30.33"
(770.38mm)
-8.11"
(-205.99mm)
3rd Driest
Driest since:
1988
125th Wettest
Wettest since:
1993
Nov 1955–Oct 1956
12-Month
22.46"
(570.48mm)
32.07"
(814.58mm)
-9.61"
(-244.10mm)
1st Driest
Driest since:
1956
127th Wettest
Wettest since:
1993
May 1955–Oct 1956
18-Month
38.03"
(965.96mm)
54.47"
(1,383.54mm)
-16.44"
(-417.58mm)
1st Driest
Driest since:
1956
127th Wettest
Wettest since:
2019
Nov 1954–Oct 1956
24-Month
45.66"
(1,159.76mm)
64.23"
(1,631.44mm)
-18.57"
(-471.68mm)
1st Driest
Driest since:
1956
126th Wettest
Wettest since:
1993
Nov 1953–Oct 1956
36-Month
81.55"
(2,071.37mm)
96.34"
(2,447.04mm)
-14.79"
(-375.67mm)
4th Driest
Driest since:
1957
122nd Wettest
Wettest since:
2010
Nov 1952–Oct 1956
48-Month
108.58"
(2,757.93mm)
128.36"
(3,260.34mm)
-19.78"
(-502.41mm)
2nd Driest
Driest since:
1958
123rd Wettest
Wettest since:
2010
Nov 1951–Oct 1956
60-Month
136.44"
(3,465.58mm)
160.34"
(4,072.64mm)
-23.90"
(-607.06mm)
1st Driest
Driest since:
1956
123rd Wettest
Wettest since:
2010

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