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, August 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
August 1988 1-Month	4.13" (104.90mm)	3.84" (97.54mm)	0.29" (7.36mm)	82nd Driest	Driest since: 1986	1984
August 1988 1-Month	4.13" (104.90mm)	3.84" (97.54mm)	0.29" (7.36mm)	47th Wettest	Wettest since: 1987	2007
Jul–Aug 1988 2-Month	6.39" (162.31mm)	7.70" (195.58mm)	-1.31" (-33.27mm)	39th Driest	Driest since: 1984	1947
Jul–Aug 1988 2-Month	6.39" (162.31mm)	7.70" (195.58mm)	-1.31" (-33.27mm)	90th Wettest	Wettest since: 1987	1993
Jun–Aug 1988 3-Month	8.11" (205.99mm)	12.33" (313.18mm)	-4.22" (-107.19mm)	10th Driest	Driest since: 1976	1927
Jun–Aug 1988 3-Month	8.11" (205.99mm)	12.33" (313.18mm)	-4.22" (-107.19mm)	119th Wettest	Wettest since: 1987	1993
May–Aug 1988 4-Month	9.88" (250.95mm)	16.38" (416.05mm)	-6.50" (-165.10mm)	3rd Driest	Driest since: 1936	1936
May–Aug 1988 4-Month	9.88" (250.95mm)	16.38" (416.05mm)	-6.50" (-165.10mm)	126th Wettest	Wettest since: 1987	1993
Apr–Aug 1988 5-Month	11.79" (299.47mm)	19.32" (490.73mm)	-7.53" (-191.26mm)	3rd Driest	Driest since: 1936	1936
Apr–Aug 1988 5-Month	11.79" (299.47mm)	19.32" (490.73mm)	-7.53" (-191.26mm)	126th Wettest	Wettest since: 1987	1993
Mar–Aug 1988 6-Month	12.58" (319.53mm)	21.28" (540.51mm)	-8.70" (-220.98mm)	2nd Driest	Driest since: 1936	1936
Mar–Aug 1988 6-Month	12.58" (319.53mm)	21.28" (540.51mm)	-8.70" (-220.98mm)	127th Wettest	Wettest since: 1987	1993
Feb–Aug 1988 7-Month	13.05" (331.47mm)	22.29" (566.17mm)	-9.24" (-234.70mm)	1st Driest	Driest since: 1988	1988
Feb–Aug 1988 7-Month	13.05" (331.47mm)	22.29" (566.17mm)	-9.24" (-234.70mm)	128th Wettest	Wettest since: 1987	1993
Jan–Aug 1988 8-Month	13.81" (350.77mm)	23.27" (591.06mm)	-9.46" (-240.29mm)	1st Driest	Driest since: 1988	1988
Jan–Aug 1988 8-Month	13.81" (350.77mm)	23.27" (591.06mm)	-9.46" (-240.29mm)	128th Wettest	Wettest since: 1987	1993
Dec 1987–Aug 1988 9-Month	15.61" (396.49mm)	24.37" (619.00mm)	-8.76" (-222.51mm)	1st Driest	Driest since: 1988	1988
Dec 1987–Aug 1988 9-Month	15.61" (396.49mm)	24.37" (619.00mm)	-8.76" (-222.51mm)	127th Wettest	Wettest since: 1987	1993
Nov 1987–Aug 1988 10-Month	18.25" (463.55mm)	26.11" (663.19mm)	-7.86" (-199.64mm)	3rd Driest	Driest since: 1934	1934
Nov 1987–Aug 1988 10-Month	18.25" (463.55mm)	26.11" (663.19mm)	-7.86" (-199.64mm)	125th Wettest	Wettest since: 1987	1993
Oct 1987–Aug 1988 11-Month	19.03" (483.36mm)	28.42" (721.87mm)	-9.39" (-238.51mm)	2nd Driest	Driest since: 1934	1934
Oct 1987–Aug 1988 11-Month	19.03" (483.36mm)	28.42" (721.87mm)	-9.39" (-238.51mm)	126th Wettest	Wettest since: 1987	1993
Sep 1987–Aug 1988 12-Month	21.61" (548.89mm)	32.12" (815.85mm)	-10.51" (-266.96mm)	2nd Driest	Driest since: 1934	1934
Sep 1987–Aug 1988 12-Month	21.61" (548.89mm)	32.12" (815.85mm)	-10.51" (-266.96mm)	126th Wettest	Wettest since: 1987	1993
Mar 1987–Aug 1988 18-Month	46.08" (1,170.43mm)	53.43" (1,357.12mm)	-7.35" (-186.69mm)	13th Driest	Driest since: 1957	1911
Mar 1987–Aug 1988 18-Month	46.08" (1,170.43mm)	53.43" (1,357.12mm)	-7.35" (-186.69mm)	115th Wettest	Wettest since: 1987	1993
Sep 1986–Aug 1988 24-Month	59.18" (1,503.17mm)	64.28" (1,632.71mm)	-5.10" (-129.54mm)	27th Driest	Driest since: 1977	1934
Sep 1986–Aug 1988 24-Month	59.18" (1,503.17mm)	64.28" (1,632.71mm)	-5.10" (-129.54mm)	100th Wettest	Wettest since: 1987	1993
Sep 1985–Aug 1988 36-Month	98.54" (2,502.92mm)	96.39" (2,448.31mm)	2.15" (54.61mm)	75th Driest	Driest since: 1982	1957
Sep 1985–Aug 1988 36-Month	98.54" (2,502.92mm)	96.39" (2,448.31mm)	2.15" (54.61mm)	51st Wettest	Wettest since: 1987	2010
Sep 1984–Aug 1988 48-Month	129.17" (3,280.92mm)	128.37" (3,260.60mm)	0.80" (20.32mm)	62nd Driest	Driest since: 1979	1936
Sep 1984–Aug 1988 48-Month	129.17" (3,280.92mm)	128.37" (3,260.60mm)	0.80" (20.32mm)	63rd Wettest	Wettest since: 1987	2010
Sep 1983–Aug 1988 60-Month	167.89" (4,264.41mm)	160.37" (4,073.40mm)	7.52" (191.01mm)	85th Driest	Driest since: 1981	1957
Sep 1983–Aug 1988 60-Month	167.89" (4,264.41mm)	160.37" (4,073.40mm)	7.52" (191.01mm)	39th 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 January 29, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings