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, September 1967

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
September 1967
1-Month
2.61"
(66.29mm)
3.67"
(93.22mm)
-1.06"
(-26.93mm)
45th Driest
Driest since:
1939
84th Wettest
Wettest since:
1965
Aug–Sep 1967
2-Month
5.26"
(133.60mm)
7.51"
(190.75mm)
-2.25"
(-57.15mm)
22nd Driest
Driest since:
1976
107th Wettest
Wettest since:
2018
Jul–Sep 1967
3-Month
7.41"
(188.21mm)
11.36"
(288.54mm)
-3.95"
(-100.33mm)
11th Driest
Driest since:
2013
118th Wettest
Wettest since:
1993
Jun–Sep 1967
4-Month
16.00"
(406.40mm)
16.00"
(406.40mm)
0.00"
(0.00mm)
72nd Driest
Driest since:
2012
57th Wettest
Wettest since:
1993
Ties: 1960
May–Sep 1967
5-Month
18.74"
(476.00mm)
20.04"
(509.02mm)
-1.30"
(-33.02mm)
52nd Driest
Driest since:
1976
77th Wettest
Wettest since:
1993
Apr–Sep 1967
6-Month
22.08"
(560.83mm)
22.99"
(583.95mm)
-0.91"
(-23.12mm)
50th Driest
Driest since:
1988
79th Wettest
Wettest since:
1993
Mar–Sep 1967
7-Month
23.68"
(601.47mm)
24.94"
(633.48mm)
-1.26"
(-32.01mm)
51st Driest
Driest since:
1988
78th Wettest
Wettest since:
1993
Feb–Sep 1967
8-Month
24.23"
(615.44mm)
25.96"
(659.38mm)
-1.73"
(-43.94mm)
46th Driest
Driest since:
1988
83rd Wettest
Wettest since:
1993
Jan–Sep 1967
9-Month
25.40"
(645.16mm)
26.93"
(684.02mm)
-1.53"
(-38.86mm)
46th Driest
Driest since:
1988
83rd Wettest
Wettest since:
1993
Dec 1966–Sep 1967
10-Month
26.46"
(672.08mm)
28.04"
(712.22mm)
-1.58"
(-40.14mm)
48th Driest
Driest since:
1988
80th Wettest
Wettest since:
1993
Nov 1966–Sep 1967
11-Month
26.95"
(684.53mm)
29.78"
(756.41mm)
-2.83"
(-71.88mm)
38th Driest
Driest since:
1934
90th Wettest
Wettest since:
1993
Oct 1966–Sep 1967
12-Month
28.56"
(725.42mm)
32.09"
(815.09mm)
-3.53"
(-89.67mm)
31st Driest
Driest since:
1934
97th Wettest
Wettest since:
1993
Apr 1966–Sep 1967
18-Month
47.21"
(1,199.13mm)
55.13"
(1,400.30mm)
-7.92"
(-201.17mm)
13th Driest
Driest since:
1934
115th Wettest
Wettest since:
1993
Oct 1965–Sep 1967
24-Month
54.76"
(1,390.90mm)
64.26"
(1,632.20mm)
-9.50"
(-241.30mm)
8th Driest
Driest since:
1956
119th Wettest
Wettest since:
1993
Oct 1964–Sep 1967
36-Month
93.39"
(2,372.11mm)
96.36"
(2,447.54mm)
-2.97"
(-75.43mm)
45th Driest
Driest since:
1957
81st Wettest
Wettest since:
2010
Oct 1963–Sep 1967
48-Month
125.14"
(3,178.56mm)
128.36"
(3,260.34mm)
-3.22"
(-81.78mm)
44th Driest
Driest since:
1958
81st Wettest
Wettest since:
2010
Oct 1962–Sep 1967
60-Month
153.11"
(3,888.99mm)
160.34"
(4,072.64mm)
-7.23"
(-183.65mm)
26th Driest
Driest since:
1957
98th Wettest
Wettest since:
2010

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