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, January 1981

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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
January 1981 1-Month	0.10" (2.54mm)	0.98" (24.89mm)	-0.88" (-22.35mm)	1st Driest	Driest since: 1981	1981
January 1981 1-Month	0.10" (2.54mm)	0.98" (24.89mm)	-0.88" (-22.35mm)	128th Wettest	Wettest since: 1980	1949
Dec 1980–Jan 1981 2-Month	1.19" (30.23mm)	2.08" (52.83mm)	-0.89" (-22.60mm)	17th Driest	Driest since: 1977	2003
Dec 1980–Jan 1981 2-Month	1.19" (30.23mm)	2.08" (52.83mm)	-0.89" (-22.60mm)	111th Wettest	Wettest since: 1980	2016
Nov 1980–Jan 1981 3-Month	1.62" (41.15mm)	3.82" (97.03mm)	-2.20" (-55.88mm)	7th Driest	Driest since: 1977	2003
Nov 1980–Jan 1981 3-Month	1.62" (41.15mm)	3.82" (97.03mm)	-2.20" (-55.88mm)	121st Wettest	Wettest since: 1980	1932
Oct 1980–Jan 1981 4-Month	3.58" (90.93mm)	6.13" (155.70mm)	-2.55" (-64.77mm)	15th Driest	Driest since: 1977	1911
Oct 1980–Jan 1981 4-Month	3.58" (90.93mm)	6.13" (155.70mm)	-2.55" (-64.77mm)	113th Wettest	Wettest since: 1980	1932
Sep 1980–Jan 1981 5-Month	6.71" (170.43mm)	9.83" (249.68mm)	-3.12" (-79.25mm)	20th Driest	Driest since: 1977	1977
Sep 1980–Jan 1981 5-Month	6.71" (170.43mm)	9.83" (249.68mm)	-3.12" (-79.25mm)	108th Wettest	Wettest since: 1980	1932
Aug 1980–Jan 1981 6-Month	14.53" (369.06mm)	13.69" (347.73mm)	0.84" (21.33mm)	75th Driest	Driest since: 1977	1977
Aug 1980–Jan 1981 6-Month	14.53" (369.06mm)	13.69" (347.73mm)	0.84" (21.33mm)	53rd Wettest	Wettest since: 1980	2019
Jul 1980–Jan 1981 7-Month	17.09" (434.09mm)	17.57" (446.28mm)	-0.48" (-12.19mm)	61st Driest	Driest since: 1977	1977
	17.09" (434.09mm)	17.57" (446.28mm)	-0.48" (-12.19mm)	67th Wettest	Wettest since: 1980	2019
	Ties: 1955, 1997
Jun 1980–Jan 1981 8-Month	21.86" (555.24mm)	22.18" (563.37mm)	-0.32" (-8.13mm)	60th Driest	Driest since: 1977	1977
Jun 1980–Jan 1981 8-Month	21.86" (555.24mm)	22.18" (563.37mm)	-0.32" (-8.13mm)	68th Wettest	Wettest since: 1980	2019
May 1980–Jan 1981 9-Month	24.69" (627.13mm)	26.22" (665.99mm)	-1.53" (-38.86mm)	52nd Driest	Driest since: 1977	1977
May 1980–Jan 1981 9-Month	24.69" (627.13mm)	26.22" (665.99mm)	-1.53" (-38.86mm)	76th Wettest	Wettest since: 1980	1994
Apr 1980–Jan 1981 10-Month	26.13" (663.70mm)	29.17" (740.92mm)	-3.04" (-77.22mm)	34th Driest	Driest since: 1977	1911
Apr 1980–Jan 1981 10-Month	26.13" (663.70mm)	29.17" (740.92mm)	-3.04" (-77.22mm)	94th Wettest	Wettest since: 1980	1994
Mar 1980–Jan 1981 11-Month	27.15" (689.61mm)	31.14" (790.96mm)	-3.99" (-101.35mm)	25th Driest	Driest since: 1977	1911
Mar 1980–Jan 1981 11-Month	27.15" (689.61mm)	31.14" (790.96mm)	-3.99" (-101.35mm)	103rd Wettest	Wettest since: 1980	1994
Feb 1980–Jan 1981 12-Month	27.89" (708.41mm)	32.15" (816.61mm)	-4.26" (-108.20mm)	25th Driest	Driest since: 1977	1911
Feb 1980–Jan 1981 12-Month	27.89" (708.41mm)	32.15" (816.61mm)	-4.26" (-108.20mm)	103rd Wettest	Wettest since: 1980	1994
Aug 1979–Jan 1981 18-Month	42.82" (1,087.63mm)	45.86" (1,164.84mm)	-3.04" (-77.21mm)	41st Driest	Driest since: 1978	1957
Aug 1979–Jan 1981 18-Month	42.82" (1,087.63mm)	45.86" (1,164.84mm)	-3.04" (-77.21mm)	86th Wettest	Wettest since: 1980	2020
Feb 1979–Jan 1981 24-Month	61.88" (1,571.75mm)	64.28" (1,632.71mm)	-2.40" (-60.96mm)	46th Driest	Driest since: 1978	1990
Feb 1979–Jan 1981 24-Month	61.88" (1,571.75mm)	64.28" (1,632.71mm)	-2.40" (-60.96mm)	81st Wettest	Wettest since: 1980	2020
Feb 1978–Jan 1981 36-Month	97.09" (2,466.09mm)	96.29" (2,445.77mm)	0.80" (20.32mm)	65th Driest	Driest since: 1979	1958
Feb 1978–Jan 1981 36-Month	97.09" (2,466.09mm)	96.29" (2,445.77mm)	0.80" (20.32mm)	61st Wettest	Wettest since: 1980	2011
Feb 1977–Jan 1981 48-Month	133.77" (3,397.76mm)	128.27" (3,258.06mm)	5.50" (139.70mm)	82nd Driest	Driest since: 1980	1959
Feb 1977–Jan 1981 48-Month	133.77" (3,397.76mm)	128.27" (3,258.06mm)	5.50" (139.70mm)	43rd Wettest	Wettest since: 1976	2011
Feb 1976–Jan 1981 60-Month	157.64" (4,004.06mm)	160.30" (4,071.62mm)	-2.66" (-67.56mm)	47th Driest	Driest since: 1979	1957
Feb 1976–Jan 1981 60-Month	157.64" (4,004.06mm)	160.30" (4,071.62mm)	-2.66" (-67.56mm)	77th Wettest	Wettest since: 1980	2011

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on January 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings