Divisional 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, Climate Division 9. Southeast

Precipitation Rankings, December 1991

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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
December 1991 1-Month	1.69" (42.93mm)	1.51" (38.35mm)	0.18" (4.58mm)	77th Driest	Driest since: 1989	1976
December 1991 1-Month	1.69" (42.93mm)	1.51" (38.35mm)	0.18" (4.58mm)	52nd Wettest	Wettest since: 1990	2015
Nov–Dec 1991 2-Month	6.91" (175.51mm)	3.62" (91.95mm)	3.29" (83.56mm)	119th Driest	Driest since: 1990	1976
Nov–Dec 1991 2-Month	6.91" (175.51mm)	3.62" (91.95mm)	3.29" (83.56mm)	10th Wettest	Wettest since: 1983	2015
Oct–Dec 1991 3-Month	11.07" (281.18mm)	6.23" (158.24mm)	4.84" (122.94mm)	121st Driest	Driest since: 1990	1910
Oct–Dec 1991 3-Month	11.07" (281.18mm)	6.23" (158.24mm)	4.84" (122.94mm)	8th Wettest	Wettest since: 1985	1941
Sep–Dec 1991 4-Month	13.24" (336.30mm)	10.15" (257.81mm)	3.09" (78.49mm)	102nd Driest	Driest since: 1990	1950
Sep–Dec 1991 4-Month	13.24" (336.30mm)	10.15" (257.81mm)	3.09" (78.49mm)	27th Wettest	Wettest since: 1986	1961
Aug–Dec 1991 5-Month	16.47" (418.34mm)	13.87" (352.30mm)	2.60" (66.04mm)	98th Driest	Driest since: 1990	1953
Aug–Dec 1991 5-Month	16.47" (418.34mm)	13.87" (352.30mm)	2.60" (66.04mm)	31st Wettest	Wettest since: 1986	1970
Jul–Dec 1991 6-Month	17.65" (448.31mm)	17.85" (453.39mm)	-0.20" (-5.08mm)	64th Driest	Driest since: 1989	1953
Jul–Dec 1991 6-Month	17.65" (448.31mm)	17.85" (453.39mm)	-0.20" (-5.08mm)	65th Wettest	Wettest since: 1990	1902
Jun–Dec 1991 7-Month	19.58" (497.33mm)	22.46" (570.48mm)	-2.88" (-73.15mm)	39th Driest	Driest since: 1989	1953
Jun–Dec 1991 7-Month	19.58" (497.33mm)	22.46" (570.48mm)	-2.88" (-73.15mm)	90th Wettest	Wettest since: 1990	1902
May–Dec 1991 8-Month	23.90" (607.06mm)	26.50" (673.10mm)	-2.60" (-66.04mm)	47th Driest	Driest since: 1989	1953
May–Dec 1991 8-Month	23.90" (607.06mm)	26.50" (673.10mm)	-2.60" (-66.04mm)	82nd Wettest	Wettest since: 1990	2010
Apr–Dec 1991 9-Month	27.27" (692.66mm)	29.84" (757.94mm)	-2.57" (-65.28mm)	49th Driest	Driest since: 1989	1953
Apr–Dec 1991 9-Month	27.27" (692.66mm)	29.84" (757.94mm)	-2.57" (-65.28mm)	80th Wettest	Wettest since: 1990	2010
Mar–Dec 1991 10-Month	31.85" (808.99mm)	32.19" (817.63mm)	-0.34" (-8.64mm)	59th Driest	Driest since: 1989	1901
Mar–Dec 1991 10-Month	31.85" (808.99mm)	32.19" (817.63mm)	-0.34" (-8.64mm)	70th Wettest	Wettest since: 1990	2010
Feb–Dec 1991 11-Month	32.26" (819.40mm)	33.42" (848.87mm)	-1.16" (-29.47mm)	56th Driest	Driest since: 1989	1901
Feb–Dec 1991 11-Month	32.26" (819.40mm)	33.42" (848.87mm)	-1.16" (-29.47mm)	73rd Wettest	Wettest since: 1990	2010
Jan–Dec 1991 12-Month	33.36" (847.34mm)	34.75" (882.65mm)	-1.39" (-35.31mm)	54th Driest	Driest since: 1989	1901
Jan–Dec 1991 12-Month	33.36" (847.34mm)	34.75" (882.65mm)	-1.39" (-35.31mm)	75th Wettest	Wettest since: 1990	2010
Jul 1990–Dec 1991 18-Month	51.25" (1,301.75mm)	52.63" (1,336.80mm)	-1.38" (-35.05mm)	58th Driest	Driest since: 1989	1956
Jul 1990–Dec 1991 18-Month	51.25" (1,301.75mm)	52.63" (1,336.80mm)	-1.38" (-35.05mm)	70th Wettest	Wettest since: 1990	2010
Jan 1990–Dec 1991 24-Month	76.29" (1,937.77mm)	69.50" (1,765.30mm)	6.79" (172.47mm)	96th Driest	Driest since: 1990	1989
Jan 1990–Dec 1991 24-Month	76.29" (1,937.77mm)	69.50" (1,765.30mm)	6.79" (172.47mm)	32nd Wettest	Wettest since: 1986	2010
Jan 1989–Dec 1991 36-Month	104.45" (2,653.03mm)	104.23" (2,647.44mm)	0.22" (5.59mm)	63rd Driest	Driest since: 1990	1989
Jan 1989–Dec 1991 36-Month	104.45" (2,653.03mm)	104.23" (2,647.44mm)	0.22" (5.59mm)	64th Wettest	Wettest since: 1987	2010
Jan 1988–Dec 1991 48-Month	124.84" (3,170.94mm)	138.86" (3,527.04mm)	-14.02" (-356.10mm)	16th Driest	Driest since: 1990	1956
Jan 1988–Dec 1991 48-Month	124.84" (3,170.94mm)	138.86" (3,527.04mm)	-14.02" (-356.10mm)	110th Wettest	Wettest since: 1988	2010
Jan 1987–Dec 1991 60-Month	154.98" (3,936.49mm)	173.41" (4,404.61mm)	-18.43" (-468.12mm)	9th Driest	Driest since: 1958	1956
Jan 1987–Dec 1991 60-Month	154.98" (3,936.49mm)	173.41" (4,404.61mm)	-18.43" (-468.12mm)	116th Wettest	Wettest since: 1990	2011

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published June 2023, retrieved on June 8, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings