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 2015

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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 2015 1-Month	4.08" (103.63mm)	1.75" (44.45mm)	2.33" (59.18mm)	122nd Driest	Driest since: 2014	1976
November 2015 1-Month	4.08" (103.63mm)	1.75" (44.45mm)	2.33" (59.18mm)	7th Wettest	Wettest since: 1992	1931
Oct–Nov 2015 2-Month	5.84" (148.34mm)	4.04" (102.62mm)	1.80" (45.72mm)	109th Driest	Driest since: 2014	1910
Oct–Nov 2015 2-Month	5.84" (148.34mm)	4.04" (102.62mm)	1.80" (45.72mm)	20th Wettest	Wettest since: 2009	1931
Sep–Nov 2015 3-Month	10.02" (254.51mm)	7.71" (195.83mm)	2.31" (58.68mm)	105th Driest	Driest since: 2014	1953
Sep–Nov 2015 3-Month	10.02" (254.51mm)	7.71" (195.83mm)	2.31" (58.68mm)	24th Wettest	Wettest since: 1992	1931
Aug–Nov 2015 4-Month	15.31" (388.87mm)	11.55" (293.37mm)	3.76" (95.50mm)	114th Driest	Driest since: 2014	1976
	15.31" (388.87mm)	11.55" (293.37mm)	3.76" (95.50mm)	15th Wettest	Wettest since: 2007	2018
	Ties: 1972
Jul–Nov 2015 5-Month	20.82" (528.83mm)	15.41" (391.41mm)	5.41" (137.42mm)	116th Driest	Driest since: 2014	1976
Jul–Nov 2015 5-Month	20.82" (528.83mm)	15.41" (391.41mm)	5.41" (137.42mm)	13th Wettest	Wettest since: 2007	1993
Jun–Nov 2015 6-Month	27.20" (690.88mm)	20.04" (509.02mm)	7.16" (181.86mm)	124th Driest	Driest since: 2014	1976
Jun–Nov 2015 6-Month	27.20" (690.88mm)	20.04" (509.02mm)	7.16" (181.86mm)	5th Wettest	Wettest since: 2010	1993
May–Nov 2015 7-Month	32.26" (819.40mm)	24.09" (611.89mm)	8.17" (207.51mm)	124th Driest	Driest since: 2014	1976
May–Nov 2015 7-Month	32.26" (819.40mm)	24.09" (611.89mm)	8.17" (207.51mm)	5th Wettest	Wettest since: 2010	1993
Apr–Nov 2015 8-Month	35.63" (905.00mm)	27.03" (686.56mm)	8.60" (218.44mm)	123rd Driest	Driest since: 2014	1910
Apr–Nov 2015 8-Month	35.63" (905.00mm)	27.03" (686.56mm)	8.60" (218.44mm)	6th Wettest	Wettest since: 2010	1993
Mar–Nov 2015 9-Month	36.19" (919.23mm)	28.99" (736.35mm)	7.20" (182.88mm)	117th Driest	Driest since: 2014	1910
Mar–Nov 2015 9-Month	36.19" (919.23mm)	28.99" (736.35mm)	7.20" (182.88mm)	12th Wettest	Wettest since: 2010	1993
Feb–Nov 2015 10-Month	37.30" (947.42mm)	30.00" (762.00mm)	7.30" (185.42mm)	117th Driest	Driest since: 2014	1910
Feb–Nov 2015 10-Month	37.30" (947.42mm)	30.00" (762.00mm)	7.30" (185.42mm)	12th Wettest	Wettest since: 2010	1993
Jan–Nov 2015 11-Month	37.82" (960.63mm)	30.98" (786.89mm)	6.84" (173.74mm)	114th Driest	Driest since: 2014	1910
Jan–Nov 2015 11-Month	37.82" (960.63mm)	30.98" (786.89mm)	6.84" (173.74mm)	15th Wettest	Wettest since: 2010	1993
Dec 2014–Nov 2015 12-Month	38.92" (988.57mm)	32.08" (814.83mm)	6.84" (173.74mm)	112th Driest	Driest since: 2014	1910
Dec 2014–Nov 2015 12-Month	38.92" (988.57mm)	32.08" (814.83mm)	6.84" (173.74mm)	16th Wettest	Wettest since: 2010	1993
Jun 2014–Nov 2015 18-Month	66.08" (1,678.43mm)	52.18" (1,325.37mm)	13.90" (353.06mm)	120th Driest	Driest since: 2014	1956
Jun 2014–Nov 2015 18-Month	66.08" (1,678.43mm)	52.18" (1,325.37mm)	13.90" (353.06mm)	8th Wettest	Wettest since: 2010	2019
Dec 2013–Nov 2015 24-Month	77.13" (1,959.10mm)	64.24" (1,631.70mm)	12.89" (327.40mm)	116th Driest	Driest since: 2014	1956
Dec 2013–Nov 2015 24-Month	77.13" (1,959.10mm)	64.24" (1,631.70mm)	12.89" (327.40mm)	11th Wettest	Wettest since: 2010	2019
Dec 2012–Nov 2015 36-Month	112.48" (2,856.99mm)	96.35" (2,447.29mm)	16.13" (409.70mm)	112th Driest	Driest since: 2014	1957
Dec 2012–Nov 2015 36-Month	112.48" (2,856.99mm)	96.35" (2,447.29mm)	16.13" (409.70mm)	14th Wettest	Wettest since: 2011	2010
Dec 2011–Nov 2015 48-Month	138.64" (3,521.46mm)	128.38" (3,260.85mm)	10.26" (260.61mm)	97th Driest	Driest since: 2014	1958
Dec 2011–Nov 2015 48-Month	138.64" (3,521.46mm)	128.38" (3,260.85mm)	10.26" (260.61mm)	28th Wettest	Wettest since: 2012	2010
Dec 2010–Nov 2015 60-Month	169.62" (4,308.35mm)	160.36" (4,073.14mm)	9.26" (235.21mm)	91st Driest	Driest since: 2007	1956
Dec 2010–Nov 2015 60-Month	169.62" (4,308.35mm)	160.36" (4,073.14mm)	9.26" (235.21mm)	33rd Wettest	Wettest since: 2014	2010

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on February 8, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings