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Divisional Rankings

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Please note, Degree Days and Palmer Indices are not available for Alaska or Hawaii. 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 8

December 1982 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1982 1-Month	3.81	-0.11	3.92	129th Driest	Driest since: 1981	1910
December 1982 1-Month	3.81	-0.11	3.92	2nd Wettest	Wettest to Date	2015
Nov–Dec 1982 2-Month	2.82	-0.08	2.90	126th Driest	Driest since: 1981	1917
Nov–Dec 1982 2-Month	2.82	-0.08	2.90	5th Wettest	Wettest since: 1961	2015
Oct–Dec 1982 3-Month	2.51	-0.05	2.56	126th Driest	Driest since: 1981	1953
Oct–Dec 1982 3-Month	2.51	-0.05	2.56	5th Wettest	Wettest since: 1941	1931
Sep–Dec 1982 4-Month	2.15	0.00	2.15	123rd Driest	Driest since: 1981	1953
Sep–Dec 1982 4-Month	2.15	0.00	2.15	8th Wettest	Wettest since: 1961	1931, 1941
Aug–Dec 1982 5-Month	2.25	-0.02	2.27	125th Driest	Driest since: 1981	1953
Aug–Dec 1982 5-Month	2.25	-0.02	2.27	6th Wettest	Wettest since: 1977	1902
Jul–Dec 1982 6-Month	2.78	0.01	2.77	127th Driest	Driest since: 1981	1953
Jul–Dec 1982 6-Month	2.78	0.01	2.77	4th Wettest	Wettest since: 1902	1902
Jun–Dec 1982 7-Month	2.30	0.02	2.28	125th Driest	Driest since: 1981	1953
Jun–Dec 1982 7-Month	2.30	0.02	2.28	6th Wettest	Wettest since: 1902	1902
May–Dec 1982 8-Month	2.47	0.04	2.43	127th Driest	Driest since: 1981	1953
May–Dec 1982 8-Month	2.47	0.04	2.43	4th Wettest	Wettest since: 1902	1902
Apr–Dec 1982 9-Month	2.25	0.05	2.20	126th Driest	Driest since: 1981	1988
Apr–Dec 1982 9-Month	2.25	0.05	2.20	5th Wettest	Wettest since: 1902	2008
Mar–Dec 1982 10-Month	2.28	0.03	2.25	129th Driest	Driest since: 1981	1934
Mar–Dec 1982 10-Month	2.28	0.03	2.25	2nd Wettest	Wettest to Date	1993
Feb–Dec 1982 11-Month	2.06	0.04	2.02	128th Driest	Driest since: 1981	1934
Feb–Dec 1982 11-Month	2.06	0.04	2.02	3rd Wettest	Wettest to Date	2008
Jan–Dec 1982 12-Month	2.03	0.04	1.99	128th Driest	Driest since: 1981	1956
Jan–Dec 1982 12-Month	2.03	0.04	1.99	3rd Wettest	Wettest since: 1973	1993
Jul 1981–Dec 1982 18-Month	1.70	0.04	1.66	125th Driest	Driest since: 1981	1956
Jul 1981–Dec 1982 18-Month	1.70	0.04	1.66	5th Wettest	Wettest since: 1973	1993
Jan 1981–Dec 1982 24-Month	1.23	0.04	1.19	123rd Driest	Driest since: 1981	1934
Jan 1981–Dec 1982 24-Month	1.23	0.04	1.19	7th Wettest	Wettest since: 1973	2009
Jan 1980–Dec 1982 36-Month	0.86	0.04	0.82	119th Driest	Driest since: 1981	1956
Jan 1980–Dec 1982 36-Month	0.86	0.04	0.82	10th Wettest	Wettest since: 1974	2010
Jan 1979–Dec 1982 48-Month	0.63	0.04	0.59	112th Driest	Driest since: 1981	1956
Jan 1979–Dec 1982 48-Month	0.63	0.04	0.59	16th Wettest	Wettest since: 1975	2010
Jan 1978–Dec 1982 60-Month	0.69	0.04	0.65	116th Driest	Driest since: 1981	1957
Jan 1978–Dec 1982 60-Month	0.69	0.04	0.65	11th Wettest	Wettest since: 1962	2011

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2025, retrieved on March 31, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings

Climate at a Glance Divisional Rankings

Divisional Rankings

Iowa, Climate Division 8

December 1982 Palmer Z-Index Rankings

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