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 1957

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
January 1957 1-Month	0.56" (14.22mm)	0.98" (24.89mm)	-0.42" (-10.67mm)	31st Driest	Driest since: 1956	1981
January 1957 1-Month	0.56" (14.22mm)	0.98" (24.89mm)	-0.42" (-10.67mm)	98th Wettest	Wettest since: 1955	1949
Dec 1956–Jan 1957 2-Month	1.08" (27.43mm)	2.08" (52.83mm)	-1.00" (-25.40mm)	13th Driest	Driest since: 1956	2003
Dec 1956–Jan 1957 2-Month	1.08" (27.43mm)	2.08" (52.83mm)	-1.00" (-25.40mm)	115th Wettest	Wettest since: 1955	2016
Nov 1956–Jan 1957 3-Month	3.11" (78.99mm)	3.82" (97.03mm)	-0.71" (-18.04mm)	46th Driest	Driest since: 1956	2003
Nov 1956–Jan 1957 3-Month	3.11" (78.99mm)	3.82" (97.03mm)	-0.71" (-18.04mm)	82nd Wettest	Wettest since: 1953	1932
Oct 1956–Jan 1957 4-Month	4.51" (114.55mm)	6.13" (155.70mm)	-1.62" (-41.15mm)	28th Driest	Driest since: 1956	1911
Oct 1956–Jan 1957 4-Month	4.51" (114.55mm)	6.13" (155.70mm)	-1.62" (-41.15mm)	100th Wettest	Wettest since: 1955	1932
Sep 1956–Jan 1957 5-Month	6.05" (153.67mm)	9.83" (249.68mm)	-3.78" (-96.01mm)	11th Driest	Driest since: 1956	1977
Sep 1956–Jan 1957 5-Month	6.05" (153.67mm)	9.83" (249.68mm)	-3.78" (-96.01mm)	117th Wettest	Wettest since: 1955	1932
Aug 1956–Jan 1957 6-Month	10.54" (267.72mm)	13.69" (347.73mm)	-3.15" (-80.01mm)	21st Driest	Driest since: 1956	1977
Aug 1956–Jan 1957 6-Month	10.54" (267.72mm)	13.69" (347.73mm)	-3.15" (-80.01mm)	107th Wettest	Wettest since: 1955	2019
Jul 1956–Jan 1957 7-Month	15.06" (382.52mm)	17.57" (446.28mm)	-2.51" (-63.76mm)	34th Driest	Driest since: 1956	1977
Jul 1956–Jan 1957 7-Month	15.06" (382.52mm)	17.57" (446.28mm)	-2.51" (-63.76mm)	94th Wettest	Wettest since: 1955	2019
Jun 1956–Jan 1957 8-Month	17.66" (448.56mm)	22.18" (563.37mm)	-4.52" (-114.81mm)	19th Driest	Driest since: 1956	1977
Jun 1956–Jan 1957 8-Month	17.66" (448.56mm)	22.18" (563.37mm)	-4.52" (-114.81mm)	109th Wettest	Wettest since: 1955	2019
May 1956–Jan 1957 9-Month	20.94" (531.88mm)	26.22" (665.99mm)	-5.28" (-134.11mm)	13th Driest	Driest since: 1956	1977
May 1956–Jan 1957 9-Month	20.94" (531.88mm)	26.22" (665.99mm)	-5.28" (-134.11mm)	115th Wettest	Wettest since: 1955	1994
Apr 1956–Jan 1957 10-Month	22.92" (582.17mm)	29.17" (740.92mm)	-6.25" (-158.75mm)	11th Driest	Driest since: 1956	1911
Apr 1956–Jan 1957 10-Month	22.92" (582.17mm)	29.17" (740.92mm)	-6.25" (-158.75mm)	117th Wettest	Wettest since: 1955	1994
Mar 1956–Jan 1957 11-Month	23.85" (605.79mm)	31.14" (790.96mm)	-7.29" (-185.17mm)	8th Driest	Driest since: 1956	1911
Mar 1956–Jan 1957 11-Month	23.85" (605.79mm)	31.14" (790.96mm)	-7.29" (-185.17mm)	120th Wettest	Wettest since: 1955	1994
Feb 1956–Jan 1957 12-Month	24.39" (619.51mm)	32.15" (816.61mm)	-7.76" (-197.10mm)	5th Driest	Driest since: 1956	1911
Feb 1956–Jan 1957 12-Month	24.39" (619.51mm)	32.15" (816.61mm)	-7.76" (-197.10mm)	123rd Wettest	Wettest since: 1955	1994
Aug 1955–Jan 1957 18-Month	31.98" (812.29mm)	45.86" (1,164.84mm)	-13.88" (-352.55mm)	1st Driest	Driest since: 1957	1957
Aug 1955–Jan 1957 18-Month	31.98" (812.29mm)	45.86" (1,164.84mm)	-13.88" (-352.55mm)	126th Wettest	Wettest since: 1956	2020
Feb 1955–Jan 1957 24-Month	46.91" (1,191.51mm)	64.28" (1,632.71mm)	-17.37" (-441.20mm)	2nd Driest	Driest since: 1957	1990
Feb 1955–Jan 1957 24-Month	46.91" (1,191.51mm)	64.28" (1,632.71mm)	-17.37" (-441.20mm)	125th Wettest	Wettest since: 1956	2020
Feb 1954–Jan 1957 36-Month	81.75" (2,076.45mm)	96.29" (2,445.77mm)	-14.54" (-369.32mm)	5th Driest	Driest since: 1913	1958
Feb 1954–Jan 1957 36-Month	81.75" (2,076.45mm)	96.29" (2,445.77mm)	-14.54" (-369.32mm)	121st Wettest	Wettest since: 1956	2011
Feb 1953–Jan 1957 48-Month	107.04" (2,718.82mm)	128.27" (3,258.06mm)	-21.23" (-539.24mm)	2nd Driest	Driest since: 1957	1959
Feb 1953–Jan 1957 48-Month	107.04" (2,718.82mm)	128.27" (3,258.06mm)	-21.23" (-539.24mm)	123rd Wettest	Wettest since: 1956	2011
Feb 1952–Jan 1957 60-Month	135.98" (3,453.89mm)	160.30" (4,071.62mm)	-24.32" (-617.73mm)	1st Driest	Driest since: 1957	1957
Feb 1952–Jan 1957 60-Month	135.98" (3,453.89mm)	160.30" (4,071.62mm)	-24.32" (-617.73mm)	123rd Wettest	Wettest since: 1956	2011

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published January 2023, retrieved on January 28, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings