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 1959

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  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
October 1959
1-Month 		2.94"
(74.68mm)		 2.29"
(58.17mm)		 0.65"
(16.51mm)		 83rd Driest
Driest since:
 1952
46th Wettest
Wettest since:
 2009
Ties: 1929
Sep–Oct 1959
2-Month 		7.29"
(185.17mm)		 5.96"
(151.38mm)		 1.33"
(33.79mm)		 96th Driest
Driest since:
 1952
33rd Wettest
Wettest since:
 1941
Aug–Oct 1959
3-Month 		12.20"
(309.88mm)		 9.80"
(248.92mm)		 2.40"
(60.96mm)		 102nd Driest
Driest since:
 1953
27th Wettest
Wettest since:
 2018
Jul–Oct 1959
4-Month 		14.59"
(370.59mm)		 13.66"
(346.96mm)		 0.93"
(23.63mm)		 80th Driest
Driest since:
 1953, 1976
49th Wettest
Wettest since:
 1993
Jun–Oct 1959
5-Month 		18.64"
(473.46mm)		 18.29"
(464.57mm)		 0.35"
(8.89mm)		 69th Driest
Driest since:
 1976
60th Wettest
Wettest since:
 1993
May–Oct 1959
6-Month 		26.22"
(665.99mm)		 22.33"
(567.18mm)		 3.89"
(98.81mm)		 102nd Driest
Driest since:
 1976
27th Wettest
Wettest since:
 1993
Apr–Oct 1959
7-Month 		29.05"
(737.87mm)		 25.28"
(642.11mm)		 3.77"
(95.76mm)		 100th Driest
Driest since:
 1988
29th Wettest
Wettest since:
 1993
Mar–Oct 1959
8-Month 		32.28"
(819.91mm)		 27.23"
(691.64mm)		 5.05"
(128.27mm)		 108th Driest
Driest since:
 1988
21st Wettest
Wettest since:
 1993
Feb–Oct 1959
9-Month 		33.60"
(853.44mm)		 28.25"
(717.55mm)		 5.35"
(135.89mm)		 109th Driest
Driest since:
 1988
20th Wettest
Wettest since:
 1993
Jan–Oct 1959
10-Month 		34.37"
(873.00mm)		 29.23"
(742.44mm)		 5.14"
(130.56mm)		 109th Driest
Driest since:
 1988
20th Wettest
Wettest since:
 1993
Dec 1958–Oct 1959
11-Month 		34.62"
(879.35mm)		 30.33"
(770.38mm)		 4.29"
(108.97mm)		 103rd Driest
Driest since:
 1988
25th Wettest
Wettest since:
 1993
Nov 1958–Oct 1959
12-Month 		36.24"
(920.50mm)		 32.07"
(814.58mm)		 4.17"
(105.92mm)		 99th Driest
Driest since:
 1956
29th Wettest
Wettest since:
 1993
May 1958–Oct 1959
18-Month 		55.73"
(1,415.54mm)		 54.47"
(1,383.54mm)		 1.26"
(32.00mm)		 70th Driest
Driest since:
 1956
58th Wettest
Wettest since:
 2019
Ties: 1997
Nov 1957–Oct 1959
24-Month 		63.38"
(1,609.85mm)		 64.23"
(1,631.44mm)		 -0.85"
(-21.59mm)		 59th Driest
Driest since:
 1956
68th Wettest
Wettest since:
 1993
Nov 1956–Oct 1959
36-Month 		93.77"
(2,381.76mm)		 96.34"
(2,447.04mm)		 -2.57"
(-65.28mm)		 45th Driest
Driest since:
 1957
81st Wettest
Wettest since:
 2010
Nov 1955–Oct 1959
48-Month 		116.23"
(2,952.24mm)		 128.36"
(3,260.34mm)		 -12.13"
(-308.10mm)		 9th Driest
Driest since:
 1958
116th Wettest
Wettest since:
 2010
Nov 1954–Oct 1959
60-Month 		139.43"
(3,541.52mm)		 160.34"
(4,072.64mm)		 -20.91"
(-531.12mm)		 5th Driest
Driest since:
 1956
119th Wettest
Wettest since:
 2010

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