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, January 2019

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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
January 2019
1-Month 		1.28"
(32.51mm)		 0.98"
(24.89mm)		 0.30"
(7.62mm)		 94th Driest
Driest since:
 1981
35th Wettest
Wettest since:
 1949
Dec 2018–Jan 2019
2-Month 		3.38"
(85.85mm)		 2.08"
(52.83mm)		 1.30"
(33.02mm)		 116th Driest
Driest since:
 2003
12th Wettest
Wettest since:
 2016
Nov 2018–Jan 2019
3-Month 		5.19"
(131.83mm)		 3.82"
(97.03mm)		 1.37"
(34.80mm)		 108th Driest
Driest since:
 2003
20th Wettest
Wettest since:
 1932
Oct 2018–Jan 2019
4-Month 		9.82"
(249.43mm)		 6.13"
(155.70mm)		 3.69"
(93.73mm)		 119th Driest
Driest since:
 1911
9th Wettest
Wettest since:
 1932
Sep 2018–Jan 2019
5-Month 		17.92"
(455.17mm)		 9.83"
(249.68mm)		 8.09"
(205.49mm)		 126th Driest
Driest since:
 1977
2nd Wettest
Wettest since:
 1932
Aug 2018–Jan 2019
6-Month 		24.34"
(618.24mm)		 13.69"
(347.73mm)		 10.65"
(270.51mm)		 127th Driest
Driest since:
 1977
1st Wettest
Wettest to Date
 2019
Jul 2018–Jan 2019
7-Month 		27.73"
(704.34mm)		 17.57"
(446.28mm)		 10.16"
(258.06mm)		 127th Driest
Driest since:
 1977
1st Wettest
Wettest to Date
 2019
Jun 2018–Jan 2019
8-Month 		35.28"
(896.11mm)		 22.18"
(563.37mm)		 13.10"
(332.74mm)		 127th Driest
Driest since:
 1977
1st Wettest
Wettest to Date
 2019
May 2018–Jan 2019
9-Month 		39.98"
(1,015.49mm)		 26.22"
(665.99mm)		 13.76"
(349.50mm)		 126th Driest
Driest since:
 1977
2nd Wettest
Wettest since:
 1994
Apr 2018–Jan 2019
10-Month 		41.52"
(1,054.61mm)		 29.17"
(740.92mm)		 12.35"
(313.69mm)		 126th Driest
Driest since:
 1911
2nd Wettest
Wettest since:
 1994
Mar 2018–Jan 2019
11-Month 		43.80"
(1,112.52mm)		 31.14"
(790.96mm)		 12.66"
(321.56mm)		 126th Driest
Driest since:
 1911
2nd Wettest
Wettest since:
 1994
Feb 2018–Jan 2019
12-Month 		45.34"
(1,151.64mm)		 32.15"
(816.61mm)		 13.19"
(335.03mm)		 126th Driest
Driest since:
 1911
2nd Wettest
Wettest since:
 1994
Aug 2017–Jan 2019
18-Month 		58.56"
(1,487.42mm)		 45.86"
(1,164.84mm)		 12.70"
(322.58mm)		 120th Driest
Driest since:
 1957
7th Wettest
Wettest since:
 2020
Ties: 2008
Feb 2017–Jan 2019
24-Month 		77.16"
(1,959.86mm)		 64.28"
(1,632.71mm)		 12.88"
(327.15mm)		 117th Driest
Driest since:
 1990
10th Wettest
Wettest since:
 2020
Feb 2016–Jan 2019
36-Month 		116.23"
(2,952.24mm)		 96.29"
(2,445.77mm)		 19.94"
(506.47mm)		 119th Driest
Driest since:
 1958
7th Wettest
Wettest since:
 2011
Feb 2015–Jan 2019
48-Month 		158.83"
(4,034.28mm)		 128.27"
(3,258.06mm)		 30.56"
(776.22mm)		 122nd Driest
Driest since:
 1959
3rd Wettest
Wettest since:
 2011
Feb 2014–Jan 2019
60-Month 		197.61"
(5,019.29mm)		 160.30"
(4,071.62mm)		 37.31"
(947.67mm)		 120th Driest
Driest since:
 1957
4th Wettest
Wettest since:
 2011

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