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, November 2009

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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
November 2009 1-Month	1.19" (30.23mm)	1.75" (44.45mm)	-0.56" (-14.22mm)	45th Driest	Driest since: 2007	1976
	1.19" (30.23mm)	1.75" (44.45mm)	-0.56" (-14.22mm)	84th Wettest	Wettest since: 2008	1931
	Ties: 1899, 1968
Oct–Nov 2009 2-Month	7.54" (191.52mm)	4.04" (102.62mm)	3.50" (88.90mm)	125th Driest	Driest since: 2008	1910
Oct–Nov 2009 2-Month	7.54" (191.52mm)	4.04" (102.62mm)	3.50" (88.90mm)	4th Wettest	Wettest since: 1983	1931
Sep–Nov 2009 3-Month	9.27" (235.46mm)	7.71" (195.83mm)	1.56" (39.63mm)	97th Driest	Driest since: 2008	1953
Sep–Nov 2009 3-Month	9.27" (235.46mm)	7.71" (195.83mm)	1.56" (39.63mm)	32nd Wettest	Wettest since: 1992	1931
Aug–Nov 2009 4-Month	15.02" (381.51mm)	11.55" (293.37mm)	3.47" (88.14mm)	112th Driest	Driest since: 2008	1976
Aug–Nov 2009 4-Month	15.02" (381.51mm)	11.55" (293.37mm)	3.47" (88.14mm)	17th Wettest	Wettest since: 2007	2018
Jul–Nov 2009 5-Month	19.64" (498.86mm)	15.41" (391.41mm)	4.23" (107.45mm)	108th Driest	Driest since: 2008	1976
Jul–Nov 2009 5-Month	19.64" (498.86mm)	15.41" (391.41mm)	4.23" (107.45mm)	21st Wettest	Wettest since: 2007	1993
Jun–Nov 2009 6-Month	24.93" (633.22mm)	20.04" (509.02mm)	4.89" (124.20mm)	113th Driest	Driest since: 2007	1976
Jun–Nov 2009 6-Month	24.93" (633.22mm)	20.04" (509.02mm)	4.89" (124.20mm)	16th Wettest	Wettest since: 2008	1993
May–Nov 2009 7-Month	28.57" (725.68mm)	24.09" (611.89mm)	4.48" (113.79mm)	106th Driest	Driest since: 2006	1976
May–Nov 2009 7-Month	28.57" (725.68mm)	24.09" (611.89mm)	4.48" (113.79mm)	23rd Wettest	Wettest since: 2008	1993
Apr–Nov 2009 8-Month	32.17" (817.12mm)	27.03" (686.56mm)	5.14" (130.56mm)	107th Driest	Driest since: 2006	1910
Apr–Nov 2009 8-Month	32.17" (817.12mm)	27.03" (686.56mm)	5.14" (130.56mm)	22nd Wettest	Wettest since: 2008	1993
Mar–Nov 2009 9-Month	35.14" (892.56mm)	28.99" (736.35mm)	6.15" (156.21mm)	111th Driest	Driest since: 2006	1910
Mar–Nov 2009 9-Month	35.14" (892.56mm)	28.99" (736.35mm)	6.15" (156.21mm)	18th Wettest	Wettest since: 2008	1993
Feb–Nov 2009 10-Month	35.93" (912.62mm)	30.00" (762.00mm)	5.93" (150.62mm)	110th Driest	Driest since: 2006	1910
Feb–Nov 2009 10-Month	35.93" (912.62mm)	30.00" (762.00mm)	5.93" (150.62mm)	19th Wettest	Wettest since: 2008	1993
Jan–Nov 2009 11-Month	36.61" (929.89mm)	30.98" (786.89mm)	5.63" (143.00mm)	110th Driest	Driest since: 2006	1910
Jan–Nov 2009 11-Month	36.61" (929.89mm)	30.98" (786.89mm)	5.63" (143.00mm)	19th Wettest	Wettest since: 2008	1993
Dec 2008–Nov 2009 12-Month	38.49" (977.65mm)	32.08" (814.83mm)	6.41" (162.82mm)	110th Driest	Driest since: 2006	1910
Dec 2008–Nov 2009 12-Month	38.49" (977.65mm)	32.08" (814.83mm)	6.41" (162.82mm)	18th Wettest	Wettest since: 2008	1993
Jun 2008–Nov 2009 18-Month	64.35" (1,634.49mm)	52.18" (1,325.37mm)	12.17" (309.12mm)	119th Driest	Driest since: 2007	1956
Jun 2008–Nov 2009 18-Month	64.35" (1,634.49mm)	52.18" (1,325.37mm)	12.17" (309.12mm)	9th Wettest	Wettest since: 2008	2019
Dec 2007–Nov 2009 24-Month	81.97" (2,082.04mm)	64.24" (1,631.70mm)	17.73" (450.34mm)	122nd Driest	Driest since: 2007	1956
Dec 2007–Nov 2009 24-Month	81.97" (2,082.04mm)	64.24" (1,631.70mm)	17.73" (450.34mm)	5th Wettest	Wettest since: 2008	2019
Dec 2006–Nov 2009 36-Month	124.03" (3,150.36mm)	96.35" (2,447.29mm)	27.68" (703.07mm)	124th Driest	Driest since: 2008	1957
Dec 2006–Nov 2009 36-Month	124.03" (3,150.36mm)	96.35" (2,447.29mm)	27.68" (703.07mm)	2nd Wettest	Wettest to Date	2010
Dec 2005–Nov 2009 48-Month	155.51" (3,949.95mm)	128.38" (3,260.85mm)	27.13" (689.10mm)	119th Driest	Driest since: 2008	1958
Dec 2005–Nov 2009 48-Month	155.51" (3,949.95mm)	128.38" (3,260.85mm)	27.13" (689.10mm)	6th Wettest	Wettest since: 1993	2010
Dec 2004–Nov 2009 60-Month	184.76" (4,692.90mm)	160.36" (4,073.14mm)	24.40" (619.76mm)	114th Driest	Driest since: 2008	1956
Dec 2004–Nov 2009 60-Month	184.76" (4,692.90mm)	160.36" (4,073.14mm)	24.40" (619.76mm)	10th Wettest	Wettest since: 1994	2010

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 20, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings