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, July 2010

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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
July 2010 1-Month	7.89" (200.41mm)	3.86" (98.04mm)	4.03" (102.37mm)	124th Driest	Driest since: 2009	1936
July 2010 1-Month	7.89" (200.41mm)	3.86" (98.04mm)	4.03" (102.37mm)	5th Wettest	Wettest since: 1993	1993
Jun–Jul 2010 2-Month	18.17" (461.52mm)	8.49" (215.65mm)	9.68" (245.87mm)	127th Driest	Driest since: 2009	1936
Jun–Jul 2010 2-Month	18.17" (461.52mm)	8.49" (215.65mm)	9.68" (245.87mm)	2nd Wettest	Wettest since: 1993	1993
May–Jul 2010 3-Month	22.36" (567.94mm)	12.53" (318.26mm)	9.83" (249.68mm)	127th Driest	Driest since: 2009	1988
May–Jul 2010 3-Month	22.36" (567.94mm)	12.53" (318.26mm)	9.83" (249.68mm)	2nd Wettest	Wettest since: 1993	1993
Apr–Jul 2010 4-Month	26.06" (661.92mm)	15.48" (393.19mm)	10.58" (268.73mm)	126th Driest	Driest since: 2009	1936
Apr–Jul 2010 4-Month	26.06" (661.92mm)	15.48" (393.19mm)	10.58" (268.73mm)	3rd Wettest	Wettest since: 2008	1993
Mar–Jul 2010 5-Month	27.78" (705.61mm)	17.43" (442.72mm)	10.35" (262.89mm)	127th Driest	Driest since: 2009	1936
Mar–Jul 2010 5-Month	27.78" (705.61mm)	17.43" (442.72mm)	10.35" (262.89mm)	2nd Wettest	Wettest since: 1993	1993
Feb–Jul 2010 6-Month	28.74" (730.00mm)	18.45" (468.63mm)	10.29" (261.37mm)	126th Driest	Driest since: 2009	1988
Feb–Jul 2010 6-Month	28.74" (730.00mm)	18.45" (468.63mm)	10.29" (261.37mm)	3rd Wettest	Wettest since: 2008	1993
Jan–Jul 2010 7-Month	30.04" (763.02mm)	19.43" (493.52mm)	10.61" (269.50mm)	127th Driest	Driest since: 2009	1988
Jan–Jul 2010 7-Month	30.04" (763.02mm)	19.43" (493.52mm)	10.61" (269.50mm)	2nd Wettest	Wettest since: 1993	1993
Dec 2009–Jul 2010 8-Month	32.58" (827.53mm)	20.53" (521.46mm)	12.05" (306.07mm)	126th Driest	Driest since: 2009	1988
Dec 2009–Jul 2010 8-Month	32.58" (827.53mm)	20.53" (521.46mm)	12.05" (306.07mm)	2nd Wettest	Wettest since: 1993	1993
Nov 2009–Jul 2010 9-Month	33.77" (857.76mm)	22.27" (565.66mm)	11.50" (292.10mm)	126th Driest	Driest since: 2009	1934
Nov 2009–Jul 2010 9-Month	33.77" (857.76mm)	22.27" (565.66mm)	11.50" (292.10mm)	2nd Wettest	Wettest since: 1993	1993
Oct 2009–Jul 2010 10-Month	40.12" (1,019.05mm)	24.58" (624.33mm)	15.54" (394.72mm)	126th Driest	Driest since: 2009	1934
Oct 2009–Jul 2010 10-Month	40.12" (1,019.05mm)	24.58" (624.33mm)	15.54" (394.72mm)	2nd Wettest	Wettest since: 1993	1993
Sep 2009–Jul 2010 11-Month	41.85" (1,062.99mm)	28.28" (718.31mm)	13.57" (344.68mm)	126th Driest	Driest since: 2009	1988
Sep 2009–Jul 2010 11-Month	41.85" (1,062.99mm)	28.28" (718.31mm)	13.57" (344.68mm)	2nd Wettest	Wettest since: 1993	1993
Aug 2009–Jul 2010 12-Month	47.60" (1,209.04mm)	32.14" (816.36mm)	15.46" (392.68mm)	125th Driest	Driest since: 2009	1956
Aug 2009–Jul 2010 12-Month	47.60" (1,209.04mm)	32.14" (816.36mm)	15.46" (392.68mm)	3rd Wettest	Wettest since: 2008	2008
Feb 2009–Jul 2010 18-Month	68.51" (1,740.15mm)	50.60" (1,285.24mm)	17.91" (454.91mm)	126th Driest	Driest since: 2009	1911
Feb 2009–Jul 2010 18-Month	68.51" (1,740.15mm)	50.60" (1,285.24mm)	17.91" (454.91mm)	2nd Wettest	Wettest since: 2008	2008
Aug 2008–Jul 2010 24-Month	82.17" (2,087.12mm)	64.31" (1,633.47mm)	17.86" (453.65mm)	121st Driest	Driest since: 2007	1934
Aug 2008–Jul 2010 24-Month	82.17" (2,087.12mm)	64.31" (1,633.47mm)	17.86" (453.65mm)	6th Wettest	Wettest since: 2009	2008
Aug 2007–Jul 2010 36-Month	132.39" (3,362.71mm)	96.40" (2,448.56mm)	35.99" (914.15mm)	125th Driest	Driest since: 2009	1956
Aug 2007–Jul 2010 36-Month	132.39" (3,362.71mm)	96.40" (2,448.56mm)	35.99" (914.15mm)	1st Wettest	Wettest to Date	2010
Aug 2006–Jul 2010 48-Month	169.99" (4,317.75mm)	128.38" (3,260.85mm)	41.61" (1,056.90mm)	124th Driest	Driest since: 2009	1957
Aug 2006–Jul 2010 48-Month	169.99" (4,317.75mm)	128.38" (3,260.85mm)	41.61" (1,056.90mm)	1st Wettest	Wettest to Date	2010
Aug 2005–Jul 2010 60-Month	197.06" (5,005.32mm)	160.37" (4,073.40mm)	36.69" (931.92mm)	121st Driest	Driest since: 2009	1957
Aug 2005–Jul 2010 60-Month	197.06" (5,005.32mm)	160.37" (4,073.40mm)	36.69" (931.92mm)	3rd Wettest	Wettest to Date	2011

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on February 6, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings