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 1988

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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 1988 1-Month	2.26" (57.40mm)	3.86" (98.04mm)	-1.60" (-40.64mm)	15th Driest	Driest since: 1975	1936
July 1988 1-Month	2.26" (57.40mm)	3.86" (98.04mm)	-1.60" (-40.64mm)	114th Wettest	Wettest since: 1987	1993
Jun–Jul 1988 2-Month	3.98" (101.09mm)	8.49" (215.65mm)	-4.51" (-114.56mm)	3rd Driest	Driest since: 1936	1936
	3.98" (101.09mm)	8.49" (215.65mm)	-4.51" (-114.56mm)	126th Wettest	Wettest since: 1987	1993
	Ties: 2012
May–Jul 1988 3-Month	5.75" (146.05mm)	12.53" (318.26mm)	-6.78" (-172.21mm)	1st Driest	Driest since: 1988	1988
May–Jul 1988 3-Month	5.75" (146.05mm)	12.53" (318.26mm)	-6.78" (-172.21mm)	128th Wettest	Wettest since: 1987	1993
Apr–Jul 1988 4-Month	7.66" (194.56mm)	15.48" (393.19mm)	-7.82" (-198.63mm)	2nd Driest	Driest since: 1936	1936
Apr–Jul 1988 4-Month	7.66" (194.56mm)	15.48" (393.19mm)	-7.82" (-198.63mm)	127th Wettest	Wettest since: 1987	1993
Mar–Jul 1988 5-Month	8.45" (214.63mm)	17.43" (442.72mm)	-8.98" (-228.09mm)	2nd Driest	Driest since: 1936	1936
Mar–Jul 1988 5-Month	8.45" (214.63mm)	17.43" (442.72mm)	-8.98" (-228.09mm)	127th Wettest	Wettest since: 1987	1993
Feb–Jul 1988 6-Month	8.92" (226.57mm)	18.45" (468.63mm)	-9.53" (-242.06mm)	1st Driest	Driest since: 1988	1988
Feb–Jul 1988 6-Month	8.92" (226.57mm)	18.45" (468.63mm)	-9.53" (-242.06mm)	128th Wettest	Wettest since: 1987	1993
Jan–Jul 1988 7-Month	9.68" (245.87mm)	19.43" (493.52mm)	-9.75" (-247.65mm)	1st Driest	Driest since: 1988	1988
Jan–Jul 1988 7-Month	9.68" (245.87mm)	19.43" (493.52mm)	-9.75" (-247.65mm)	128th Wettest	Wettest since: 1987	1993
Dec 1987–Jul 1988 8-Month	11.48" (291.59mm)	20.53" (521.46mm)	-9.05" (-229.87mm)	1st Driest	Driest since: 1988	1988
Dec 1987–Jul 1988 8-Month	11.48" (291.59mm)	20.53" (521.46mm)	-9.05" (-229.87mm)	127th Wettest	Wettest since: 1987	1993
Nov 1987–Jul 1988 9-Month	14.12" (358.65mm)	22.27" (565.66mm)	-8.15" (-207.01mm)	2nd Driest	Driest since: 1934	1934
Nov 1987–Jul 1988 9-Month	14.12" (358.65mm)	22.27" (565.66mm)	-8.15" (-207.01mm)	126th Wettest	Wettest since: 1987	1993
Oct 1987–Jul 1988 10-Month	14.90" (378.46mm)	24.58" (624.33mm)	-9.68" (-245.87mm)	2nd Driest	Driest since: 1934	1934
Oct 1987–Jul 1988 10-Month	14.90" (378.46mm)	24.58" (624.33mm)	-9.68" (-245.87mm)	126th Wettest	Wettest since: 1987	1993
Sep 1987–Jul 1988 11-Month	17.48" (443.99mm)	28.28" (718.31mm)	-10.80" (-274.32mm)	1st Driest	Driest since: 1988	1988
Sep 1987–Jul 1988 11-Month	17.48" (443.99mm)	28.28" (718.31mm)	-10.80" (-274.32mm)	127th Wettest	Wettest since: 1987	1993
Aug 1987–Jul 1988 12-Month	25.14" (638.56mm)	32.14" (816.36mm)	-7.00" (-177.80mm)	7th Driest	Driest since: 1977	1956
Aug 1987–Jul 1988 12-Month	25.14" (638.56mm)	32.14" (816.36mm)	-7.00" (-177.80mm)	121st Wettest	Wettest since: 1987	2008
Feb 1987–Jul 1988 18-Month	42.21" (1,072.13mm)	50.60" (1,285.24mm)	-8.39" (-213.11mm)	10th Driest	Driest since: 1977	1911
Feb 1987–Jul 1988 18-Month	42.21" (1,072.13mm)	50.60" (1,285.24mm)	-8.39" (-213.11mm)	118th Wettest	Wettest since: 1987	2008
Aug 1986–Jul 1988 24-Month	58.97" (1,497.84mm)	64.31" (1,633.47mm)	-5.34" (-135.63mm)	25th Driest	Driest since: 1977	1934
Aug 1986–Jul 1988 24-Month	58.97" (1,497.84mm)	64.31" (1,633.47mm)	-5.34" (-135.63mm)	102nd Wettest	Wettest since: 1987	2008
Aug 1985–Jul 1988 36-Month	98.29" (2,496.57mm)	96.40" (2,448.56mm)	1.89" (48.01mm)	75th Driest	Driest since: 1981	1956
Aug 1985–Jul 1988 36-Month	98.29" (2,496.57mm)	96.40" (2,448.56mm)	1.89" (48.01mm)	51st Wettest	Wettest since: 1987	2010
Aug 1984–Jul 1988 48-Month	126.03" (3,201.16mm)	128.38" (3,260.85mm)	-2.35" (-59.69mm)	48th Driest	Driest since: 1980	1957
Aug 1984–Jul 1988 48-Month	126.03" (3,201.16mm)	128.38" (3,260.85mm)	-2.35" (-59.69mm)	77th Wettest	Wettest since: 1987	2010
Aug 1983–Jul 1988 60-Month	166.19" (4,221.23mm)	160.37" (4,073.40mm)	5.82" (147.83mm)	80th Driest	Driest since: 1981	1957
Aug 1983–Jul 1988 60-Month	166.19" (4,221.23mm)	160.37" (4,073.40mm)	5.82" (147.83mm)	44th Wettest	Wettest since: 1987	2011

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on February 7, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings