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

Divisional Rankings

Parameter:

Year:

Month:

State:

Division:

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 1909 Palmer Z-Index Rankings

View Period (Months):

All

Download:

CSV JSON XML

Record Driest

Bottom ⅒

Bottom ⅓

Normal

Top ⅓

Top ⅒

Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2025)	Driest/Wettest Since	Record
December 1909 1-Month	2.32	-0.11	2.43	125th Driest	Driest since: 1908	1910
December 1909 1-Month	2.32	-0.11	2.43	6th Wettest	Wettest to Date	2015
Nov–Dec 1909 2-Month	2.55	-0.08	2.63	125th Driest	Driest since: 1908	1917
Nov–Dec 1909 2-Month	2.55	-0.08	2.63	6th Wettest	Wettest to Date	2015
Oct–Dec 1909 3-Month	1.86	-0.05	1.91	120th Driest	Driest since: 1908	1953
Oct–Dec 1909 3-Month	1.86	-0.05	1.91	11th Wettest	Wettest to Date	1931
Sep–Dec 1909 4-Month	1.43	0.00	1.43	111th Driest	Driest since: 1908	1953
Sep–Dec 1909 4-Month	1.43	0.00	1.43	20th Wettest	Wettest since: 1902	1931, 1941
Aug–Dec 1909 5-Month	0.64	-0.02	0.66	93rd Driest	Driest since: 1908	1953
Aug–Dec 1909 5-Month	0.64	-0.02	0.66	38th Wettest	Wettest since: 1905	1902
Jul–Dec 1909 6-Month	1.14	0.01	1.13	102nd Driest	Driest since: 1908	1953
Jul–Dec 1909 6-Month	1.14	0.01	1.13	29th Wettest	Wettest since: 1905	1902
Jun–Dec 1909 7-Month	1.22	0.02	1.20	109th Driest	Driest since: 1908	1953
Jun–Dec 1909 7-Month	1.22	0.02	1.20	22nd Wettest	Wettest since: 1905	1902
May–Dec 1909 8-Month	1.17	0.04	1.13	106th Driest	Driest since: 1908	1953
May–Dec 1909 8-Month	1.17	0.04	1.13	25th Wettest	Wettest since: 1905	1902
Apr–Dec 1909 9-Month	1.36	0.05	1.31	117th Driest	Driest since: 1908	1988
Apr–Dec 1909 9-Month	1.36	0.05	1.31	14th Wettest	Wettest since: 1905	2008
Mar–Dec 1909 10-Month	1.21	0.03	1.18	115th Driest	Driest since: 1908	1934
Mar–Dec 1909 10-Month	1.21	0.03	1.18	16th Wettest	Wettest since: 1905	1993
Feb–Dec 1909 11-Month	1.20	0.04	1.16	116th Driest	Driest since: 1908	1934
Feb–Dec 1909 11-Month	1.20	0.04	1.16	15th Wettest	Wettest since: 1905	2008
Jan–Dec 1909 12-Month	1.22	0.04	1.18	119th Driest	Driest since: 1908	1956
Jan–Dec 1909 12-Month	1.22	0.04	1.18	12th Wettest	Wettest since: 1902	1993
Jul 1908–Dec 1909 18-Month	0.88	0.04	0.84	109th Driest	Driest since: 1908	1956
Jul 1908–Dec 1909 18-Month	0.88	0.04	0.84	21st Wettest	Wettest since: 1903	1993
Jan 1908–Dec 1909 24-Month	0.84	0.04	0.80	115th Driest	Driest since: 1908	1934
Jan 1908–Dec 1909 24-Month	0.84	0.04	0.80	15th Wettest	Wettest since: 1903	2009
Jan 1907–Dec 1909 36-Month	0.76	0.04	0.72	114th Driest	Driest since: 1908	1956
Jan 1907–Dec 1909 36-Month	0.76	0.04	0.72	15th Wettest	Wettest to Date	2010
Jan 1906–Dec 1909 48-Month	0.50	0.04	0.46	104th Driest	Driest since: 1908	1956
Jan 1906–Dec 1909 48-Month	0.50	0.04	0.46	24th Wettest	Wettest since: 1905	2010
Jan 1905–Dec 1909 60-Month	0.64	0.04	0.60	112th Driest	Driest since: 1908	1957
Jan 1905–Dec 1909 60-Month	0.64	0.04	0.60	15th Wettest	Wettest to Date	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 1909 Palmer Z-Index Rankings

Citing This Page

Success

Error