Climate at a Glance | Divisional Rankings | National Centers for Environmental Information (NCEI)

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 1954 Palmer Z-Index Rankings

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1954 1-Month	-1.04	-0.11	-0.93	31st Driest	Driest since: 1953	1910
December 1954 1-Month	-1.04	-0.11	-0.93	100th Wettest	Wettest since: 1952	2015
Nov–Dec 1954 2-Month	-1.59	-0.08	-1.51	18th Driest	Driest since: 1953	1917
Nov–Dec 1954 2-Month	-1.59	-0.08	-1.51	113th Wettest	Wettest since: 1952	2015
Oct–Dec 1954 3-Month	-0.22	-0.05	-0.17	54th Driest	Driest since: 1953	1953
Oct–Dec 1954 3-Month	-0.22	-0.05	-0.17	77th Wettest	Wettest since: 1952	1931
Sep–Dec 1954 4-Month	-0.76	0.00	-0.76	36th Driest	Driest since: 1953	1953
Sep–Dec 1954 4-Month	-0.76	0.00	-0.76	95th Wettest	Wettest since: 1952	1931, 1941
Aug–Dec 1954 5-Month	-0.13	-0.02	-0.11	67th Driest	Driest since: 1953	1953
Aug–Dec 1954 5-Month	-0.13	-0.02	-0.11	64th Wettest	Wettest since: 1952	1902
Jul–Dec 1954 6-Month	-0.64	0.01	-0.65	42nd Driest	Driest since: 1953	1953
Jul–Dec 1954 6-Month	-0.64	0.01	-0.65	89th Wettest	Wettest since: 1952	1902
Jun–Dec 1954 7-Month	-0.66	0.02	-0.68	38th Driest	Driest since: 1953	1953
Jun–Dec 1954 7-Month	-0.66	0.02	-0.68	93rd Wettest	Wettest since: 1952	1902
May–Dec 1954 8-Month	-0.53	0.04	-0.57	42nd Driest	Driest since: 1953	1953
May–Dec 1954 8-Month	-0.53	0.04	-0.57	89th Wettest	Wettest since: 1952	1902
Apr–Dec 1954 9-Month	-0.46	0.05	-0.51	41st Driest	Driest since: 1953	1988
Apr–Dec 1954 9-Month	-0.46	0.05	-0.51	90th Wettest	Wettest since: 1952	2008
Mar–Dec 1954 10-Month	-0.55	0.03	-0.58	34th Driest	Driest since: 1953	1934
Mar–Dec 1954 10-Month	-0.55	0.03	-0.58	97th Wettest	Wettest since: 1952	1993
Feb–Dec 1954 11-Month	-0.65	0.04	-0.69	27th Driest	Driest since: 1953	1934
Feb–Dec 1954 11-Month	-0.65	0.04	-0.69	104th Wettest	Wettest since: 1952	2008
Jan–Dec 1954 12-Month	-0.89	0.04	-0.93	16th Driest	Driest since: 1953	1956
Jan–Dec 1954 12-Month	-0.89	0.04	-0.93	115th Wettest	Wettest since: 1952	1993
Jul 1953–Dec 1954 18-Month	-1.53	0.04	-1.57	3rd Driest	Driest since: 1934	1956
Jul 1953–Dec 1954 18-Month	-1.53	0.04	-1.57	127th Wettest	Wettest since: 1953	1993
Jan 1953–Dec 1954 24-Month	-1.06	0.04	-1.10	7th Driest	Driest since: 1937	1934
Jan 1953–Dec 1954 24-Month	-1.06	0.04	-1.10	123rd Wettest	Wettest since: 1953	2009
Jan 1952–Dec 1954 36-Month	-0.66	0.04	-0.70	15th Driest	Driest since: 1940	1956
Jan 1952–Dec 1954 36-Month	-0.66	0.04	-0.70	114th Wettest	Wettest since: 1953	2010
Jan 1951–Dec 1954 48-Month	-0.18	0.04	-0.22	32nd Driest	Driest since: 1941	1956
Jan 1951–Dec 1954 48-Month	-0.18	0.04	-0.22	96th Wettest	Wettest since: 1953	2010
Jan 1950–Dec 1954 60-Month	-0.18	0.04	-0.22	29th Driest	Driest since: 1942	1957
Jan 1950–Dec 1954 60-Month	-0.18	0.04	-0.22	98th Wettest	Wettest since: 1953	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 1954 Palmer Z-Index Rankings

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