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 1949

View Period (Months):
Download: csv json xml
  • Record Driest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
September 1949
1-Month
3.20"
(81.28mm)
3.67"
(93.22mm)
-0.47"
(-11.94mm)
64th Driest
Driest since:
1939
65th Wettest
Wettest since:
1965
Aug–Sep 1949
2-Month
5.49"
(139.45mm)
7.51"
(190.75mm)
-2.02"
(-51.30mm)
26th Driest
Driest since:
1976
103rd Wettest
Wettest since:
2018
Jul–Sep 1949
3-Month
9.05"
(229.87mm)
11.36"
(288.54mm)
-2.31"
(-58.67mm)
33rd Driest
Driest since:
2013
96th Wettest
Wettest since:
1993
Jun–Sep 1949
4-Month
14.60"
(370.84mm)
16.00"
(406.40mm)
-1.40"
(-35.56mm)
47th Driest
Driest since:
2012
82nd Wettest
Wettest since:
1993
May–Sep 1949
5-Month
17.27"
(438.66mm)
20.04"
(509.02mm)
-2.77"
(-70.36mm)
28th Driest
Driest since:
1976
101st Wettest
Wettest since:
1993
Apr–Sep 1949
6-Month
18.58"
(471.93mm)
22.99"
(583.95mm)
-4.41"
(-112.02mm)
17th Driest
Driest since:
1988
112th Wettest
Wettest since:
1993
Mar–Sep 1949
7-Month
21.06"
(534.92mm)
24.94"
(633.48mm)
-3.88"
(-98.56mm)
22nd Driest
Driest since:
1988
107th Wettest
Wettest since:
1993
Feb–Sep 1949
8-Month
21.95"
(557.53mm)
25.96"
(659.38mm)
-4.01"
(-101.85mm)
23rd Driest
Driest since:
1988
106th Wettest
Wettest since:
1993
Jan–Sep 1949
9-Month
24.65"
(626.11mm)
26.93"
(684.02mm)
-2.28"
(-57.91mm)
41st Driest
Driest since:
1988
88th Wettest
Wettest since:
1993
Dec 1948–Sep 1949
10-Month
26.33"
(668.78mm)
28.04"
(712.22mm)
-1.71"
(-43.44mm)
47th Driest
Driest since:
1988
81st Wettest
Wettest since:
1993
Nov 1948–Sep 1949
11-Month
29.05"
(737.87mm)
29.78"
(756.41mm)
-0.73"
(-18.54mm)
56th Driest
Driest since:
1934
72nd Wettest
Wettest since:
1993
Oct 1948–Sep 1949
12-Month
30.97"
(786.64mm)
32.09"
(815.09mm)
-1.12"
(-28.45mm)
52nd Driest
Driest since:
1934
76th Wettest
Wettest since:
1993
Apr 1948–Sep 1949
18-Month
48.41"
(1,229.61mm)
55.13"
(1,400.30mm)
-6.72"
(-170.69mm)
17th Driest
Driest since:
1934
111th Wettest
Wettest since:
1993
Oct 1947–Sep 1949
24-Month
60.24"
(1,530.10mm)
64.26"
(1,632.20mm)
-4.02"
(-102.10mm)
36th Driest
Driest since:
1956
91st Wettest
Wettest since:
1993
Oct 1946–Sep 1949
36-Month
93.27"
(2,369.06mm)
96.36"
(2,447.54mm)
-3.09"
(-78.48mm)
44th Driest
Driest since:
1957
82nd Wettest
Wettest since:
2010
Oct 1945–Sep 1949
48-Month
126.05"
(3,201.67mm)
128.36"
(3,260.34mm)
-2.31"
(-58.67mm)
47th Driest
Driest since:
1958
78th Wettest
Wettest since:
2010
Oct 1944–Sep 1949
60-Month
160.60"
(4,079.24mm)
160.34"
(4,072.64mm)
0.26"
(6.60mm)
63rd Driest
Driest since:
1957
61st Wettest
Wettest since:
2010

Citing This Page