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 2008

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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 2008 1-Month	5.88" (149.35mm)	3.86" (98.04mm)	2.02" (51.31mm)	113th Driest	Driest since: 2007	1936
July 2008 1-Month	5.88" (149.35mm)	3.86" (98.04mm)	2.02" (51.31mm)	16th Wettest	Wettest since: 1993	1993
Jun–Jul 2008 2-Month	14.76" (374.90mm)	8.49" (215.65mm)	6.27" (159.25mm)	125th Driest	Driest since: 2007	1936
Jun–Jul 2008 2-Month	14.76" (374.90mm)	8.49" (215.65mm)	6.27" (159.25mm)	4th Wettest	Wettest since: 1993	1993
May–Jul 2008 3-Month	20.43" (518.92mm)	12.53" (318.26mm)	7.90" (200.66mm)	125th Driest	Driest since: 2007	1988
May–Jul 2008 3-Month	20.43" (518.92mm)	12.53" (318.26mm)	7.90" (200.66mm)	4th Wettest	Wettest since: 1993	1993
Apr–Jul 2008 4-Month	26.29" (667.77mm)	15.48" (393.19mm)	10.81" (274.58mm)	127th Driest	Driest since: 2007	1936
Apr–Jul 2008 4-Month	26.29" (667.77mm)	15.48" (393.19mm)	10.81" (274.58mm)	2nd Wettest	Wettest since: 1993	1993
Mar–Jul 2008 5-Month	27.55" (699.77mm)	17.43" (442.72mm)	10.12" (257.05mm)	126th Driest	Driest since: 2007	1936
Mar–Jul 2008 5-Month	27.55" (699.77mm)	17.43" (442.72mm)	10.12" (257.05mm)	3rd Wettest	Wettest since: 1993	1993
Feb–Jul 2008 6-Month	29.26" (743.20mm)	18.45" (468.63mm)	10.81" (274.57mm)	127th Driest	Driest since: 2007	1988
Feb–Jul 2008 6-Month	29.26" (743.20mm)	18.45" (468.63mm)	10.81" (274.57mm)	2nd Wettest	Wettest since: 1993	1993
Jan–Jul 2008 7-Month	29.94" (760.48mm)	19.43" (493.52mm)	10.51" (266.96mm)	126th Driest	Driest since: 2007	1988
Jan–Jul 2008 7-Month	29.94" (760.48mm)	19.43" (493.52mm)	10.51" (266.96mm)	3rd Wettest	Wettest since: 1993	1993
Dec 2007–Jul 2008 8-Month	32.38" (822.45mm)	20.53" (521.46mm)	11.85" (300.99mm)	125th Driest	Driest since: 2007	1988
Dec 2007–Jul 2008 8-Month	32.38" (822.45mm)	20.53" (521.46mm)	11.85" (300.99mm)	3rd Wettest	Wettest since: 1993	1993
Nov 2007–Jul 2008 9-Month	32.56" (827.02mm)	22.27" (565.66mm)	10.29" (261.36mm)	125th Driest	Driest since: 2007	1934
Nov 2007–Jul 2008 9-Month	32.56" (827.02mm)	22.27" (565.66mm)	10.29" (261.36mm)	3rd Wettest	Wettest since: 1993	1993
Oct 2007–Jul 2008 10-Month	37.66" (956.56mm)	24.58" (624.33mm)	13.08" (332.23mm)	125th Driest	Driest since: 2007	1934
Oct 2007–Jul 2008 10-Month	37.66" (956.56mm)	24.58" (624.33mm)	13.08" (332.23mm)	3rd Wettest	Wettest since: 1993	1993
Sep 2007–Jul 2008 11-Month	40.53" (1,029.46mm)	28.28" (718.31mm)	12.25" (311.15mm)	124th Driest	Driest since: 2007	1988
Sep 2007–Jul 2008 11-Month	40.53" (1,029.46mm)	28.28" (718.31mm)	12.25" (311.15mm)	4th Wettest	Wettest since: 1993	1993
Aug 2007–Jul 2008 12-Month	50.22" (1,275.59mm)	32.14" (816.36mm)	18.08" (459.23mm)	127th Driest	Driest since: 2007	1956
Aug 2007–Jul 2008 12-Month	50.22" (1,275.59mm)	32.14" (816.36mm)	18.08" (459.23mm)	1st Wettest	Wettest to Date	2008
Feb 2007–Jul 2008 18-Month	71.44" (1,814.58mm)	50.60" (1,285.24mm)	20.84" (529.34mm)	127th Driest	Driest since: 2007	1911
Feb 2007–Jul 2008 18-Month	71.44" (1,814.58mm)	50.60" (1,285.24mm)	20.84" (529.34mm)	1st Wettest	Wettest to Date	2008
Aug 2006–Jul 2008 24-Month	87.82" (2,230.63mm)	64.31" (1,633.47mm)	23.51" (597.16mm)	126th Driest	Driest since: 2007	1934
Aug 2006–Jul 2008 24-Month	87.82" (2,230.63mm)	64.31" (1,633.47mm)	23.51" (597.16mm)	1st Wettest	Wettest to Date	2008
Aug 2005–Jul 2008 36-Month	114.89" (2,918.21mm)	96.40" (2,448.56mm)	18.49" (469.65mm)	115th Driest	Driest since: 2007	1956
Aug 2005–Jul 2008 36-Month	114.89" (2,918.21mm)	96.40" (2,448.56mm)	18.49" (469.65mm)	11th Wettest	Wettest since: 1995	2010
Aug 2004–Jul 2008 48-Month	146.65" (3,724.91mm)	128.38" (3,260.85mm)	18.27" (464.06mm)	113th Driest	Driest since: 2007	1957
Aug 2004–Jul 2008 48-Month	146.65" (3,724.91mm)	128.38" (3,260.85mm)	18.27" (464.06mm)	12th Wettest	Wettest since: 1995	2010
Aug 2003–Jul 2008 60-Month	179.88" (4,568.95mm)	160.37" (4,073.40mm)	19.51" (495.55mm)	109th Driest	Driest since: 2007	1957
Aug 2003–Jul 2008 60-Month	179.88" (4,568.95mm)	160.37" (4,073.40mm)	19.51" (495.55mm)	15th Wettest	Wettest since: 1996	2011

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on February 5, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings