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 1971

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 1971
1-Month
3.61"
(91.69mm)
2.29"
(58.17mm)
1.32"
(33.52mm)
111th Driest
Driest since:
1952
18th Wettest
Wettest since:
2009
Ties: 1969
Sep–Oct 1971
2-Month
6.03"
(153.16mm)
5.96"
(151.38mm)
0.07"
(1.78mm)
72nd Driest
Driest since:
1952
57th Wettest
Wettest since:
1941
Aug–Oct 1971
3-Month
7.27"
(184.66mm)
9.80"
(248.92mm)
-2.53"
(-64.26mm)
23rd Driest
Driest since:
1953
106th Wettest
Wettest since:
2018
Jul–Oct 1971
4-Month
10.70"
(271.78mm)
13.66"
(346.96mm)
-2.96"
(-75.18mm)
28th Driest
Driest since:
1953, 1976
101st Wettest
Wettest since:
1993
Jun–Oct 1971
5-Month
15.20"
(386.08mm)
18.29"
(464.57mm)
-3.09"
(-78.49mm)
28th Driest
Driest since:
1976
101st Wettest
Wettest since:
1993
May–Oct 1971
6-Month
18.77"
(476.76mm)
22.33"
(567.18mm)
-3.56"
(-90.42mm)
26th Driest
Driest since:
1976
103rd Wettest
Wettest since:
1993
Apr–Oct 1971
7-Month
20.14"
(511.56mm)
25.28"
(642.11mm)
-5.14"
(-130.55mm)
16th Driest
Driest since:
1988
113th Wettest
Wettest since:
1993
Mar–Oct 1971
8-Month
21.05"
(534.67mm)
27.23"
(691.64mm)
-6.18"
(-156.97mm)
11th Driest
Driest since:
1988
118th Wettest
Wettest since:
1993
Feb–Oct 1971
9-Month
23.47"
(596.14mm)
28.25"
(717.55mm)
-4.78"
(-121.41mm)
20th Driest
Driest since:
1988
109th Wettest
Wettest since:
1993
Jan–Oct 1971
10-Month
24.56"
(623.82mm)
29.23"
(742.44mm)
-4.67"
(-118.62mm)
22nd Driest
Driest since:
1988
107th Wettest
Wettest since:
1993
Dec 1970–Oct 1971
11-Month
25.68"
(652.27mm)
30.33"
(770.38mm)
-4.65"
(-118.11mm)
21st Driest
Driest since:
1988
107th Wettest
Wettest since:
1993
Ties: 1963
Nov 1970–Oct 1971
12-Month
27.37"
(695.20mm)
32.07"
(814.58mm)
-4.70"
(-119.38mm)
21st Driest
Driest since:
1956
107th Wettest
Wettest since:
1993
May 1970–Oct 1971
18-Month
53.13"
(1,349.50mm)
54.47"
(1,383.54mm)
-1.34"
(-34.04mm)
53rd Driest
Driest since:
1956
75th Wettest
Wettest since:
2019
Nov 1969–Oct 1971
24-Month
59.81"
(1,519.17mm)
64.23"
(1,631.44mm)
-4.42"
(-112.27mm)
30th Driest
Driest since:
1956
97th Wettest
Wettest since:
1993
Nov 1968–Oct 1971
36-Month
96.12"
(2,441.45mm)
96.34"
(2,447.04mm)
-0.22"
(-5.59mm)
60th Driest
Driest since:
1957
66th Wettest
Wettest since:
2010
Nov 1967–Oct 1971
48-Month
127.24"
(3,231.90mm)
128.36"
(3,260.34mm)
-1.12"
(-28.44mm)
53rd Driest
Driest since:
1958
72nd Wettest
Wettest since:
2010
Nov 1966–Oct 1971
60-Month
157.34"
(3,996.44mm)
160.34"
(4,072.64mm)
-3.00"
(-76.20mm)
43rd Driest
Driest since:
1956
81st Wettest
Wettest since:
2010

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