Statewide Rankings

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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 1956

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
October 1956 1-Month	1.40" (35.56mm)	2.29" (58.17mm)	-0.89" (-22.61mm)	30th Driest	Driest since: 1953	1952
October 1956 1-Month	1.40" (35.56mm)	2.29" (58.17mm)	-0.89" (-22.61mm)	99th Wettest	Wettest since: 1955	2009
Sep–Oct 1956 2-Month	2.94" (74.68mm)	5.96" (151.38mm)	-3.02" (-76.70mm)	9th Driest	Driest since: 1953	1952
Sep–Oct 1956 2-Month	2.94" (74.68mm)	5.96" (151.38mm)	-3.02" (-76.70mm)	120th Wettest	Wettest since: 1955	1941
Aug–Oct 1956 3-Month	7.43" (188.72mm)	9.80" (248.92mm)	-2.37" (-60.20mm)	27th Driest	Driest since: 1955	1953
Aug–Oct 1956 3-Month	7.43" (188.72mm)	9.80" (248.92mm)	-2.37" (-60.20mm)	102nd Wettest	Wettest since: 1954	2018
Jul–Oct 1956 4-Month	11.95" (303.53mm)	13.66" (346.96mm)	-1.71" (-43.43mm)	40th Driest	Driest since: 1955	1953, 1976
Jul–Oct 1956 4-Month	11.95" (303.53mm)	13.66" (346.96mm)	-1.71" (-43.43mm)	89th Wettest	Wettest since: 1954	1993
Jun–Oct 1956 5-Month	14.55" (369.57mm)	18.29" (464.57mm)	-3.74" (-95.00mm)	21st Driest	Driest since: 1955	1976
Jun–Oct 1956 5-Month	14.55" (369.57mm)	18.29" (464.57mm)	-3.74" (-95.00mm)	108th Wettest	Wettest since: 1954	1993
May–Oct 1956 6-Month	17.83" (452.88mm)	22.33" (567.18mm)	-4.50" (-114.30mm)	16th Driest	Driest since: 1955	1976
May–Oct 1956 6-Month	17.83" (452.88mm)	22.33" (567.18mm)	-4.50" (-114.30mm)	113th Wettest	Wettest since: 1954	1993
Apr–Oct 1956 7-Month	19.81" (503.17mm)	25.28" (642.11mm)	-5.47" (-138.94mm)	14th Driest	Driest since: 1955	1988
Apr–Oct 1956 7-Month	19.81" (503.17mm)	25.28" (642.11mm)	-5.47" (-138.94mm)	115th Wettest	Wettest since: 1954	1993
Mar–Oct 1956 8-Month	20.74" (526.80mm)	27.23" (691.64mm)	-6.49" (-164.84mm)	7th Driest	Driest since: 1955	1988
Mar–Oct 1956 8-Month	20.74" (526.80mm)	27.23" (691.64mm)	-6.49" (-164.84mm)	122nd Wettest	Wettest since: 1954	1993
Feb–Oct 1956 9-Month	21.28" (540.51mm)	28.25" (717.55mm)	-6.97" (-177.04mm)	4th Driest	Driest since: 1934	1988
Feb–Oct 1956 9-Month	21.28" (540.51mm)	28.25" (717.55mm)	-6.97" (-177.04mm)	125th Wettest	Wettest since: 1955	1993
Jan–Oct 1956 10-Month	21.73" (551.94mm)	29.23" (742.44mm)	-7.50" (-190.50mm)	4th Driest	Driest since: 1934	1988
Jan–Oct 1956 10-Month	21.73" (551.94mm)	29.23" (742.44mm)	-7.50" (-190.50mm)	125th Wettest	Wettest since: 1955	1993
Dec 1955–Oct 1956 11-Month	22.22" (564.39mm)	30.33" (770.38mm)	-8.11" (-205.99mm)	3rd Driest	Driest since: 1910	1988
Dec 1955–Oct 1956 11-Month	22.22" (564.39mm)	30.33" (770.38mm)	-8.11" (-205.99mm)	125th Wettest	Wettest since: 1955	1993
Nov 1955–Oct 1956 12-Month	22.46" (570.48mm)	32.07" (814.58mm)	-9.61" (-244.10mm)	1st Driest	Driest since: 1956	1956
Nov 1955–Oct 1956 12-Month	22.46" (570.48mm)	32.07" (814.58mm)	-9.61" (-244.10mm)	127th Wettest	Wettest since: 1955	1993
May 1955–Oct 1956 18-Month	38.03" (965.96mm)	54.47" (1,383.54mm)	-16.44" (-417.58mm)	1st Driest	Driest since: 1956	1956
May 1955–Oct 1956 18-Month	38.03" (965.96mm)	54.47" (1,383.54mm)	-16.44" (-417.58mm)	127th Wettest	Wettest since: 1955	2019
Nov 1954–Oct 1956 24-Month	45.66" (1,159.76mm)	64.23" (1,631.44mm)	-18.57" (-471.68mm)	1st Driest	Driest since: 1956	1956
Nov 1954–Oct 1956 24-Month	45.66" (1,159.76mm)	64.23" (1,631.44mm)	-18.57" (-471.68mm)	126th Wettest	Wettest since: 1955	1993
Nov 1953–Oct 1956 36-Month	81.55" (2,071.37mm)	96.34" (2,447.04mm)	-14.79" (-375.67mm)	4th Driest	Driest since: 1956	1957
Nov 1953–Oct 1956 36-Month	81.55" (2,071.37mm)	96.34" (2,447.04mm)	-14.79" (-375.67mm)	122nd Wettest	Wettest since: 1955	2010
Nov 1952–Oct 1956 48-Month	108.58" (2,757.93mm)	128.36" (3,260.34mm)	-19.78" (-502.41mm)	2nd Driest	Driest since: 1956	1958
Nov 1952–Oct 1956 48-Month	108.58" (2,757.93mm)	128.36" (3,260.34mm)	-19.78" (-502.41mm)	123rd Wettest	Wettest since: 1955	2010
Nov 1951–Oct 1956 60-Month	136.44" (3,465.58mm)	160.34" (4,072.64mm)	-23.90" (-607.06mm)	1st Driest	Driest since: 1956	1956
Nov 1951–Oct 1956 60-Month	136.44" (3,465.58mm)	160.34" (4,072.64mm)	-23.90" (-607.06mm)	123rd Wettest	Wettest since: 1955	2010

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on February 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings