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 1903

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  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
October 1903
1-Month		1.93"
(49.02mm)		2.29"
(58.17mm)		-0.36"
(-9.15mm)		54th Driest
Driest since:
1952
75th Wettest
Wettest since:
2009
Ties: 1994
Sep–Oct 1903
2-Month		5.65"
(143.51mm)		5.96"
(151.38mm)		-0.31"
(-7.87mm)		59th Driest
Driest since:
1952
70th Wettest
Wettest since:
1941
Aug–Oct 1903
3-Month		12.05"
(306.07mm)		9.80"
(248.92mm)		2.25"
(57.15mm)		100th Driest
Driest since:
1953
29th Wettest
Wettest since:
2018
Jul–Oct 1903
4-Month		17.28"
(438.91mm)		13.66"
(346.96mm)		3.62"
(91.95mm)		107th Driest
Driest since:
1953, 1976
22nd Wettest
Wettest since:
1993
Jun–Oct 1903
5-Month		20.22"
(513.59mm)		18.29"
(464.57mm)		1.93"
(49.02mm)		89th Driest
Driest since:
1976
40th Wettest
Wettest since:
1993
May–Oct 1903
6-Month		28.77"
(730.76mm)		22.33"
(567.18mm)		6.44"
(163.58mm)		118th Driest
Driest since:
1976
11th Wettest
Wettest since:
1993
Apr–Oct 1903
7-Month		31.75"
(806.45mm)		25.28"
(642.11mm)		6.47"
(164.34mm)		116th Driest
Driest since:
1988
13th Wettest
Wettest since:
1993
Mar–Oct 1903
8-Month		33.13"
(841.50mm)		27.23"
(691.64mm)		5.90"
(149.86mm)		112th Driest
Driest since:
1988
17th Wettest
Wettest since:
1993
Feb–Oct 1903
9-Month		34.25"
(869.95mm)		28.25"
(717.55mm)		6.00"
(152.40mm)		111th Driest
Driest since:
1988
18th Wettest
Wettest since:
1993
Jan–Oct 1903
10-Month		34.50"
(876.30mm)		29.23"
(742.44mm)		5.27"
(133.86mm)		110th Driest
Driest since:
1988
19th Wettest
Wettest since:
1993
Dec 1902–Oct 1903
11-Month		36.66"
(931.16mm)		30.33"
(770.38mm)		6.33"
(160.78mm)		111th Driest
Driest since:
1988
17th Wettest
Wettest since:
1993
Nov 1902–Oct 1903
12-Month		38.73"
(983.74mm)		32.07"
(814.58mm)		6.66"
(169.16mm)		112th Driest
Driest since:
1956
16th Wettest
Wettest since:
1993
May 1902–Oct 1903
18-Month		73.54"
(1,867.92mm)		54.47"
(1,383.54mm)		19.07"
(484.38mm)		125th Driest
Driest since:
1956
3rd Wettest
Wettest to Date
2019
Nov 1901–Oct 1903
24-Month		80.07"
(2,033.78mm)		64.23"
(1,631.44mm)		15.84"
(402.34mm)		119th Driest
Driest since:
1956
8th Wettest
Wettest to Date
1993
Nov 1900–Oct 1903
36-Month		104.29"
(2,648.97mm)		96.34"
(2,447.04mm)		7.95"
(201.93mm)		99th Driest
Driest since:
1957
27th Wettest
Wettest to Date
2010
Nov 1899–Oct 1903
48-Month		141.01"
(3,581.65mm)		128.36"
(3,260.34mm)		12.65"
(321.31mm)		100th Driest
Driest since:
1958
25th Wettest
Wettest to Date
2010
Nov 1898–Oct 1903
60-Month		168.61"
(4,282.69mm)		160.34"
(4,072.64mm)		8.27"
(210.05mm)		90th Driest
Driest since:
1956
34th Wettest
Wettest to Date
2010

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