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 1915

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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
October 1915 1-Month	1.28" (32.51mm)	2.29" (58.17mm)	-1.01" (-25.66mm)	25th Driest	Driest since: 1910	1952
October 1915 1-Month	1.28" (32.51mm)	2.29" (58.17mm)	-1.01" (-25.66mm)	104th Wettest	Wettest since: 1914	2009
Sep–Oct 1915 2-Month	7.36" (186.94mm)	5.96" (151.38mm)	1.40" (35.56mm)	98th Driest	Driest since: 1913	1952
Sep–Oct 1915 2-Month	7.36" (186.94mm)	5.96" (151.38mm)	1.40" (35.56mm)	31st Wettest	Wettest since: 1914	1941
Aug–Oct 1915 3-Month	10.18" (258.57mm)	9.80" (248.92mm)	0.38" (9.65mm)	74th Driest	Driest since: 1913	1953
Aug–Oct 1915 3-Month	10.18" (258.57mm)	9.80" (248.92mm)	0.38" (9.65mm)	55th Wettest	Wettest since: 1914	2018
Jul–Oct 1915 4-Month	18.24" (463.30mm)	13.66" (346.96mm)	4.58" (116.34mm)	113th Driest	Driest since: 1914	1953, 1976
Jul–Oct 1915 4-Month	18.24" (463.30mm)	13.66" (346.96mm)	4.58" (116.34mm)	16th Wettest	Wettest since: 1902	1993
Jun–Oct 1915 5-Month	22.34" (567.44mm)	18.29" (464.57mm)	4.05" (102.87mm)	108th Driest	Driest since: 1914	1976
Jun–Oct 1915 5-Month	22.34" (567.44mm)	18.29" (464.57mm)	4.05" (102.87mm)	21st Wettest	Wettest since: 1902	1993
May–Oct 1915 6-Month	29.69" (754.13mm)	22.33" (567.18mm)	7.36" (186.95mm)	120th Driest	Driest since: 1914	1976
May–Oct 1915 6-Month	29.69" (754.13mm)	22.33" (567.18mm)	7.36" (186.95mm)	9th Wettest	Wettest since: 1902	1993
Apr–Oct 1915 7-Month	31.01" (787.65mm)	25.28" (642.11mm)	5.73" (145.54mm)	111th Driest	Driest since: 1914	1988
Apr–Oct 1915 7-Month	31.01" (787.65mm)	25.28" (642.11mm)	5.73" (145.54mm)	18th Wettest	Wettest since: 1903	1993
Mar–Oct 1915 8-Month	31.93" (811.02mm)	27.23" (691.64mm)	4.70" (119.38mm)	105th Driest	Driest since: 1914	1988
Mar–Oct 1915 8-Month	31.93" (811.02mm)	27.23" (691.64mm)	4.70" (119.38mm)	24th Wettest	Wettest since: 1903	1993
Feb–Oct 1915 9-Month	34.79" (883.67mm)	28.25" (717.55mm)	6.54" (166.12mm)	114th Driest	Driest since: 1914	1988
Feb–Oct 1915 9-Month	34.79" (883.67mm)	28.25" (717.55mm)	6.54" (166.12mm)	15th Wettest	Wettest since: 1902	1993
Jan–Oct 1915 10-Month	36.42" (925.07mm)	29.23" (742.44mm)	7.19" (182.63mm)	115th Driest	Driest since: 1914	1988
Jan–Oct 1915 10-Month	36.42" (925.07mm)	29.23" (742.44mm)	7.19" (182.63mm)	14th Wettest	Wettest since: 1902	1993
Dec 1914–Oct 1915 11-Month	37.72" (958.09mm)	30.33" (770.38mm)	7.39" (187.71mm)	114th Driest	Driest since: 1914	1988
Dec 1914–Oct 1915 11-Month	37.72" (958.09mm)	30.33" (770.38mm)	7.39" (187.71mm)	14th Wettest	Wettest since: 1902	1993
Nov 1914–Oct 1915 12-Month	37.93" (963.42mm)	32.07" (814.58mm)	5.86" (148.84mm)	108th Driest	Driest since: 1914	1956
Nov 1914–Oct 1915 12-Month	37.93" (963.42mm)	32.07" (814.58mm)	5.86" (148.84mm)	20th Wettest	Wettest since: 1903	1993
May 1914–Oct 1915 18-Month	62.12" (1,577.85mm)	54.47" (1,383.54mm)	7.65" (194.31mm)	110th Driest	Driest since: 1914	1956
May 1914–Oct 1915 18-Month	62.12" (1,577.85mm)	54.47" (1,383.54mm)	7.65" (194.31mm)	18th Wettest	Wettest since: 1903	2019
Nov 1913–Oct 1915 24-Month	70.21" (1,783.33mm)	64.23" (1,631.44mm)	5.98" (151.89mm)	96th Driest	Driest since: 1914	1956
Nov 1913–Oct 1915 24-Month	70.21" (1,783.33mm)	64.23" (1,631.44mm)	5.98" (151.89mm)	31st Wettest	Wettest since: 1903	1993
Nov 1912–Oct 1915 36-Month	99.83" (2,535.68mm)	96.34" (2,447.04mm)	3.49" (88.64mm)	81st Driest	Driest since: 1914	1957
Nov 1912–Oct 1915 36-Month	99.83" (2,535.68mm)	96.34" (2,447.04mm)	3.49" (88.64mm)	45th Wettest	Wettest since: 1909	2010
Nov 1911–Oct 1915 48-Month	130.51" (3,314.95mm)	128.36" (3,260.34mm)	2.15" (54.61mm)	71st Driest	Driest since: 1914	1958
Nov 1911–Oct 1915 48-Month	130.51" (3,314.95mm)	128.36" (3,260.34mm)	2.15" (54.61mm)	54th Wettest	Wettest since: 1909	2010
Nov 1910–Oct 1915 60-Month	158.91" (4,036.31mm)	160.34" (4,072.64mm)	-1.43" (-36.33mm)	54th Driest	Driest since: 1914	1956
	158.91" (4,036.31mm)	160.34" (4,072.64mm)	-1.43" (-36.33mm)	70th Wettest	Wettest since: 1910	2010
	Ties: 2005

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published May 2023, retrieved on May 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings