Divisional Rankings

Divisional 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, Climate Division 9. Southeast

Precipitation Rankings, May 1902

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
May 1902
1-Month
3.37"
(85.60mm)
4.04"
(102.62mm)
-0.67"
(-17.02mm)
47th Driest
Driest since:
1992
82nd Wettest
Wettest since:
1996
Ties: 1941
Apr–May 1902
2-Month
6.40"
(162.56mm)
7.38"
(187.45mm)
-0.98"
(-24.89mm)
47th Driest
Driest since:
1956
82nd Wettest
Wettest since:
2013
Ties: 1979
Mar–May 1902
3-Month
8.05"
(204.47mm)
9.74"
(247.40mm)
-1.69"
(-42.93mm)
36th Driest
Driest since:
1956
93rd Wettest
Wettest since:
1973
Feb–May 1902
4-Month
8.94"
(227.08mm)
10.97"
(278.64mm)
-2.03"
(-51.56mm)
29th Driest
Driest since:
1956
100th Wettest
Wettest since:
1973
Jan–May 1902
5-Month
9.48"
(240.79mm)
12.29"
(312.17mm)
-2.81"
(-71.38mm)
23rd Driest
Driest since:
1956
106th Wettest
Wettest since:
1973
Ties: 1992
Dec 1901–May 1902
6-Month
11.00"
(279.40mm)
13.78"
(350.01mm)
-2.78"
(-70.61mm)
27th Driest
Driest since:
1956
101st Wettest
Wettest since:
1973
Nov 1901–May 1902
7-Month
11.82"
(300.23mm)
15.90"
(403.86mm)
-4.08"
(-103.63mm)
19th Driest
Driest since:
1956
109th Wettest
Wettest since:
1973
Oct 1901–May 1902
8-Month
13.13"
(333.50mm)
18.53"
(470.66mm)
-5.40"
(-137.16mm)
7th Driest
Driest since:
1956
121st Wettest
Wettest since:
2019
Sep 1901–May 1902
9-Month
15.52"
(394.21mm)
22.45"
(570.23mm)
-6.93"
(-176.02mm)
5th Driest
Driest since:
1956
123rd Wettest
Wettest since:
2019
Aug 1901–May 1902
10-Month
16.00"
(406.40mm)
26.20"
(665.48mm)
-10.20"
(-259.08mm)
3rd Driest
Driest since:
1956
125th Wettest
Wettest since:
2019
Jul 1901–May 1902
11-Month
17.96"
(456.18mm)
30.18"
(766.57mm)
-12.22"
(-310.39mm)
3rd Driest
Driest since:
1956
125th Wettest
Wettest since:
2019
Jun 1901–May 1902
12-Month
20.85"
(529.59mm)
34.73"
(882.14mm)
-13.88"
(-352.55mm)
2nd Driest
Driest since:
1956
126th Wettest
Wettest since:
1903
Dec 1900–May 1902
18-Month
29.99"
(761.75mm)
48.55"
(1,233.17mm)
-18.56"
(-471.42mm)
1st Driest
Driest since:
1902
126th Wettest
Wettest since:
1974
Jun 1900–May 1902
24-Month
50.90"
(1,292.86mm)
69.46"
(1,764.28mm)
-18.56"
(-471.42mm)
3rd Driest
Driest since:
1957
124th Wettest
Wettest since:
2011
Jun 1899–May 1902
36-Month
78.28"
(1,988.31mm)
104.12"
(2,644.65mm)
-25.84"
(-656.34mm)
3rd Driest
Driest since:
1958
123rd Wettest
Wettest since:
2011
Jun 1898–May 1902
48-Month
113.53"
(2,883.66mm)
138.68"
(3,522.47mm)
-25.15"
(-638.81mm)
5th Driest
Driest since:
1957
120th Wettest
Wettest since:
2011
Jun 1897–May 1902
60-Month
144.78"
(3,677.41mm)
173.32"
(4,402.33mm)
-28.54"
(-724.92mm)
4th Driest
Driest since:
1958
120th Wettest
Wettest since:
2011

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