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, November 1940

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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
November 1940 1-Month	2.51" (63.75mm)	1.75" (44.45mm)	0.76" (19.30mm)	105th Driest	Driest since: 1939	1976
November 1940 1-Month	2.51" (63.75mm)	1.75" (44.45mm)	0.76" (19.30mm)	24th Wettest	Wettest since: 1938	1931
Oct–Nov 1940 2-Month	4.83" (122.68mm)	4.04" (102.62mm)	0.79" (20.06mm)	87th Driest	Driest since: 1939	1910
Oct–Nov 1940 2-Month	4.83" (122.68mm)	4.04" (102.62mm)	0.79" (20.06mm)	42nd Wettest	Wettest since: 1935	1931
Sep–Nov 1940 3-Month	5.70" (144.78mm)	7.71" (195.83mm)	-2.01" (-51.05mm)	32nd Driest	Driest since: 1939	1953
Sep–Nov 1940 3-Month	5.70" (144.78mm)	7.71" (195.83mm)	-2.01" (-51.05mm)	97th Wettest	Wettest since: 1938	1931
Aug–Nov 1940 4-Month	12.12" (307.85mm)	11.55" (293.37mm)	0.57" (14.48mm)	75th Driest	Driest since: 1939	1976
Aug–Nov 1940 4-Month	12.12" (307.85mm)	11.55" (293.37mm)	0.57" (14.48mm)	54th Wettest	Wettest since: 1938	2018
Jul–Nov 1940 5-Month	16.69" (423.93mm)	15.41" (391.41mm)	1.28" (32.52mm)	85th Driest	Driest since: 1939	1976
Jul–Nov 1940 5-Month	16.69" (423.93mm)	15.41" (391.41mm)	1.28" (32.52mm)	44th Wettest	Wettest since: 1938	1993
Jun–Nov 1940 6-Month	20.36" (517.14mm)	20.04" (509.02mm)	0.32" (8.12mm)	70th Driest	Driest since: 1939	1976
	20.36" (517.14mm)	20.04" (509.02mm)	0.32" (8.12mm)	59th Wettest	Wettest since: 1938	1993
	Ties: 1932, 1985
May–Nov 1940 7-Month	22.38" (568.45mm)	24.09" (611.89mm)	-1.71" (-43.44mm)	46th Driest	Driest since: 1939	1976
May–Nov 1940 7-Month	22.38" (568.45mm)	24.09" (611.89mm)	-1.71" (-43.44mm)	83rd Wettest	Wettest since: 1938	1993
Apr–Nov 1940 8-Month	25.53" (648.46mm)	27.03" (686.56mm)	-1.50" (-38.10mm)	51st Driest	Driest since: 1939	1910
Apr–Nov 1940 8-Month	25.53" (648.46mm)	27.03" (686.56mm)	-1.50" (-38.10mm)	78th Wettest	Wettest since: 1938	1993
Mar–Nov 1940 9-Month	27.23" (691.64mm)	28.99" (736.35mm)	-1.76" (-44.71mm)	46th Driest	Driest since: 1939	1910
	27.23" (691.64mm)	28.99" (736.35mm)	-1.76" (-44.71mm)	83rd Wettest	Wettest since: 1938	1993
	Ties: 1906
Feb–Nov 1940 10-Month	28.34" (719.84mm)	30.00" (762.00mm)	-1.66" (-42.16mm)	48th Driest	Driest since: 1939	1910
Feb–Nov 1940 10-Month	28.34" (719.84mm)	30.00" (762.00mm)	-1.66" (-42.16mm)	81st Wettest	Wettest since: 1938	1993
Jan–Nov 1940 11-Month	29.15" (740.41mm)	30.98" (786.89mm)	-1.83" (-46.48mm)	45th Driest	Driest since: 1939	1910
Jan–Nov 1940 11-Month	29.15" (740.41mm)	30.98" (786.89mm)	-1.83" (-46.48mm)	84th Wettest	Wettest since: 1938	1993
Dec 1939–Nov 1940 12-Month	29.75" (755.65mm)	32.08" (814.83mm)	-2.33" (-59.18mm)	41st Driest	Driest since: 1939	1910
Dec 1939–Nov 1940 12-Month	29.75" (755.65mm)	32.08" (814.83mm)	-2.33" (-59.18mm)	87th Wettest	Wettest since: 1938	1993
Jun 1939–Nov 1940 18-Month	45.35" (1,151.89mm)	52.18" (1,325.37mm)	-6.83" (-173.48mm)	16th Driest	Driest since: 1937	1956
Jun 1939–Nov 1940 18-Month	45.35" (1,151.89mm)	52.18" (1,325.37mm)	-6.83" (-173.48mm)	112th Wettest	Wettest since: 1939	2019
Dec 1938–Nov 1940 24-Month	54.34" (1,380.24mm)	64.24" (1,631.70mm)	-9.90" (-251.46mm)	6th Driest	Driest since: 1937	1956
	54.34" (1,380.24mm)	64.24" (1,631.70mm)	-9.90" (-251.46mm)	121st Wettest	Wettest since: 1939	2019
	Ties: 1988
Dec 1937–Nov 1940 36-Month	90.71" (2,304.03mm)	96.35" (2,447.29mm)	-5.64" (-143.26mm)	33rd Driest	Driest since: 1939	1957
Dec 1937–Nov 1940 36-Month	90.71" (2,304.03mm)	96.35" (2,447.29mm)	-5.64" (-143.26mm)	93rd Wettest	Wettest since: 1932	2010
Dec 1936–Nov 1940 48-Month	118.98" (3,022.09mm)	128.38" (3,260.85mm)	-9.40" (-238.76mm)	15th Driest	Driest since: 1939	1958
Dec 1936–Nov 1940 48-Month	118.98" (3,022.09mm)	128.38" (3,260.85mm)	-9.40" (-238.76mm)	110th Wettest	Wettest since: 1938	2010
Dec 1935–Nov 1940 60-Month	143.95" (3,656.33mm)	160.36" (4,073.14mm)	-16.41" (-416.81mm)	9th Driest	Driest since: 1937	1956
Dec 1935–Nov 1940 60-Month	143.95" (3,656.33mm)	160.36" (4,073.14mm)	-16.41" (-416.81mm)	115th Wettest	Wettest since: 1939	2010

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published June 2023, retrieved on June 8, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings