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, January 2010

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Record Driest

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2023)	Wettest/Driest Since	Record
January 2010 1-Month	1.30" (33.02mm)	0.98" (24.89mm)	0.32" (8.13mm)	98th Driest	Driest since: 2009	1981
	1.30" (33.02mm)	0.98" (24.89mm)	0.32" (8.13mm)	32nd Wettest	Wettest since: 2005	1949
	Ties: 1980
Dec 2009–Jan 2010 2-Month	3.84" (97.54mm)	2.08" (52.83mm)	1.76" (44.71mm)	123rd Driest	Driest since: 2009	2003
	3.84" (97.54mm)	2.08" (52.83mm)	1.76" (44.71mm)	6th Wettest	Wettest since: 1983	2016
	Ties: 1969
Nov 2009–Jan 2010 3-Month	5.03" (127.76mm)	3.82" (97.03mm)	1.21" (30.73mm)	104th Driest	Driest since: 2009	2003
	5.03" (127.76mm)	3.82" (97.03mm)	1.21" (30.73mm)	25th Wettest	Wettest since: 2004	1932
	Ties: 1946, 1969
Oct 2009–Jan 2010 4-Month	11.38" (289.05mm)	6.13" (155.70mm)	5.25" (133.35mm)	127th Driest	Driest since: 2009	1911
Oct 2009–Jan 2010 4-Month	11.38" (289.05mm)	6.13" (155.70mm)	5.25" (133.35mm)	2nd Wettest	Wettest since: 1932	1932
Sep 2009–Jan 2010 5-Month	13.11" (332.99mm)	9.83" (249.68mm)	3.28" (83.31mm)	109th Driest	Driest since: 2009	1977
	13.11" (332.99mm)	9.83" (249.68mm)	3.28" (83.31mm)	20th Wettest	Wettest since: 1993	1932
	Ties: 1960
Aug 2009–Jan 2010 6-Month	18.86" (479.04mm)	13.69" (347.73mm)	5.17" (131.31mm)	120th Driest	Driest since: 2009	1977
Aug 2009–Jan 2010 6-Month	18.86" (479.04mm)	13.69" (347.73mm)	5.17" (131.31mm)	9th Wettest	Wettest since: 2008	2019
Jul 2009–Jan 2010 7-Month	23.48" (596.39mm)	17.57" (446.28mm)	5.91" (150.11mm)	115th Driest	Driest since: 2009	1977
Jul 2009–Jan 2010 7-Month	23.48" (596.39mm)	17.57" (446.28mm)	5.91" (150.11mm)	14th Wettest	Wettest since: 2008	2019
Jun 2009–Jan 2010 8-Month	28.77" (730.76mm)	22.18" (563.37mm)	6.59" (167.39mm)	120th Driest	Driest since: 2009	1977
Jun 2009–Jan 2010 8-Month	28.77" (730.76mm)	22.18" (563.37mm)	6.59" (167.39mm)	9th Wettest	Wettest since: 1994	2019
May 2009–Jan 2010 9-Month	32.41" (823.21mm)	26.22" (665.99mm)	6.19" (157.22mm)	115th Driest	Driest since: 2007	1977
May 2009–Jan 2010 9-Month	32.41" (823.21mm)	26.22" (665.99mm)	6.19" (157.22mm)	14th Wettest	Wettest since: 2009	1994
Apr 2009–Jan 2010 10-Month	36.01" (914.65mm)	29.17" (740.92mm)	6.84" (173.73mm)	111th Driest	Driest since: 2007	1911
Apr 2009–Jan 2010 10-Month	36.01" (914.65mm)	29.17" (740.92mm)	6.84" (173.73mm)	18th Wettest	Wettest since: 2009	1994
Mar 2009–Jan 2010 11-Month	38.98" (990.09mm)	31.14" (790.96mm)	7.84" (199.13mm)	117th Driest	Driest since: 2007	1911
Mar 2009–Jan 2010 11-Month	38.98" (990.09mm)	31.14" (790.96mm)	7.84" (199.13mm)	12th Wettest	Wettest since: 2009	1994
Feb 2009–Jan 2010 12-Month	39.77" (1,010.16mm)	32.15" (816.61mm)	7.62" (193.55mm)	113th Driest	Driest since: 2007	1911
Feb 2009–Jan 2010 12-Month	39.77" (1,010.16mm)	32.15" (816.61mm)	7.62" (193.55mm)	16th Wettest	Wettest since: 2009	1994
Aug 2008–Jan 2010 18-Month	53.43" (1,357.12mm)	45.86" (1,164.84mm)	7.57" (192.28mm)	110th Driest	Driest since: 2007	1957
Aug 2008–Jan 2010 18-Month	53.43" (1,357.12mm)	45.86" (1,164.84mm)	7.57" (192.28mm)	18th Wettest	Wettest since: 2009	2020
Feb 2008–Jan 2010 24-Month	82.69" (2,100.33mm)	64.28" (1,632.71mm)	18.41" (467.62mm)	123rd Driest	Driest since: 2008	1990
Feb 2008–Jan 2010 24-Month	82.69" (2,100.33mm)	64.28" (1,632.71mm)	18.41" (467.62mm)	5th Wettest	Wettest since: 2009	2020
Feb 2007–Jan 2010 36-Month	124.87" (3,171.70mm)	96.29" (2,445.77mm)	28.58" (725.93mm)	125th Driest	Driest since: 2009	1958
Feb 2007–Jan 2010 36-Month	124.87" (3,171.70mm)	96.29" (2,445.77mm)	28.58" (725.93mm)	2nd Wettest	Wettest to Date	2011
Feb 2006–Jan 2010 48-Month	157.19" (3,992.63mm)	128.27" (3,258.06mm)	28.92" (734.57mm)	120th Driest	Driest since: 2009	1959
Feb 2006–Jan 2010 48-Month	157.19" (3,992.63mm)	128.27" (3,258.06mm)	28.92" (734.57mm)	6th Wettest	Wettest since: 1994	2011
Feb 2005–Jan 2010 60-Month	186.71" (4,742.43mm)	160.30" (4,071.62mm)	26.41" (670.81mm)	118th Driest	Driest since: 2009	1957
Feb 2005–Jan 2010 60-Month	186.71" (4,742.43mm)	160.30" (4,071.62mm)	26.41" (670.81mm)	7th Wettest	Wettest since: 1995	2011

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 26, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings