Divisional 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, Climate Division 9. Southeast

Precipitation Rankings, December 1947

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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
December 1947 1-Month	2.00" (50.80mm)	1.51" (38.35mm)	0.49" (12.45mm)	93rd Driest	Driest since: 1946	1976
	2.00" (50.80mm)	1.51" (38.35mm)	0.49" (12.45mm)	36th Wettest	Wettest since: 1945	2015
	Ties: 1902
Nov–Dec 1947 2-Month	4.06" (103.12mm)	3.62" (91.95mm)	0.44" (11.17mm)	84th Driest	Driest since: 1946	1976
Nov–Dec 1947 2-Month	4.06" (103.12mm)	3.62" (91.95mm)	0.44" (11.17mm)	45th Wettest	Wettest since: 1944	2015
Oct–Dec 1947 3-Month	7.21" (183.13mm)	6.23" (158.24mm)	0.98" (24.89mm)	92nd Driest	Driest since: 1946	1910
Oct–Dec 1947 3-Month	7.21" (183.13mm)	6.23" (158.24mm)	0.98" (24.89mm)	37th Wettest	Wettest since: 1942	1941
Sep–Dec 1947 4-Month	11.64" (295.66mm)	10.15" (257.81mm)	1.49" (37.85mm)	87th Driest	Driest since: 1946	1950
Sep–Dec 1947 4-Month	11.64" (295.66mm)	10.15" (257.81mm)	1.49" (37.85mm)	42nd Wettest	Wettest since: 1945	1961
Aug–Dec 1947 5-Month	12.66" (321.56mm)	13.87" (352.30mm)	-1.21" (-30.74mm)	54th Driest	Driest since: 1943	1953
	12.66" (321.56mm)	13.87" (352.30mm)	-1.21" (-30.74mm)	75th Wettest	Wettest since: 1946	1970
	Ties: 1940, 1969
Jul–Dec 1947 6-Month	14.23" (361.44mm)	17.85" (453.39mm)	-3.62" (-91.95mm)	33rd Driest	Driest since: 1939	1953
Jul–Dec 1947 6-Month	14.23" (361.44mm)	17.85" (453.39mm)	-3.62" (-91.95mm)	96th Wettest	Wettest since: 1946	1902
Jun–Dec 1947 7-Month	23.89" (606.81mm)	22.46" (570.48mm)	1.43" (36.33mm)	86th Driest	Driest since: 1945	1953
Jun–Dec 1947 7-Month	23.89" (606.81mm)	22.46" (570.48mm)	1.43" (36.33mm)	43rd Wettest	Wettest since: 1946	1902
May–Dec 1947 8-Month	28.42" (721.87mm)	26.50" (673.10mm)	1.92" (48.77mm)	81st Driest	Driest since: 1945	1953
May–Dec 1947 8-Month	28.42" (721.87mm)	26.50" (673.10mm)	1.92" (48.77mm)	48th Wettest	Wettest since: 1946	2010
Apr–Dec 1947 9-Month	34.78" (883.41mm)	29.84" (757.94mm)	4.94" (125.47mm)	102nd Driest	Driest since: 1946	1953
Apr–Dec 1947 9-Month	34.78" (883.41mm)	29.84" (757.94mm)	4.94" (125.47mm)	27th Wettest	Wettest since: 1941	2010
Mar–Dec 1947 10-Month	36.59" (929.39mm)	32.19" (817.63mm)	4.40" (111.76mm)	96th Driest	Driest since: 1945	1901
Mar–Dec 1947 10-Month	36.59" (929.39mm)	32.19" (817.63mm)	4.40" (111.76mm)	33rd Wettest	Wettest since: 1946	2010
Feb–Dec 1947 11-Month	36.75" (933.45mm)	33.42" (848.87mm)	3.33" (84.58mm)	90th Driest	Driest since: 1945	1901
Feb–Dec 1947 11-Month	36.75" (933.45mm)	33.42" (848.87mm)	3.33" (84.58mm)	39th Wettest	Wettest since: 1946	2010
Jan–Dec 1947 12-Month	38.35" (974.09mm)	34.75" (882.65mm)	3.60" (91.44mm)	91st Driest	Driest since: 1945	1901
Jan–Dec 1947 12-Month	38.35" (974.09mm)	34.75" (882.65mm)	3.60" (91.44mm)	38th Wettest	Wettest since: 1946	2010
Jul 1946–Dec 1947 18-Month	56.15" (1,426.21mm)	52.63" (1,336.80mm)	3.52" (89.41mm)	86th Driest	Driest since: 1946	1956
Jul 1946–Dec 1947 18-Month	56.15" (1,426.21mm)	52.63" (1,336.80mm)	3.52" (89.41mm)	42nd Wettest	Wettest since: 1944	2010
Jan 1946–Dec 1947 24-Month	78.51" (1,994.15mm)	69.50" (1,765.30mm)	9.01" (228.85mm)	106th Driest	Driest since: 1946	1989
Jan 1946–Dec 1947 24-Month	78.51" (1,994.15mm)	69.50" (1,765.30mm)	9.01" (228.85mm)	22nd Wettest	Wettest since: 1928	2010
Jan 1945–Dec 1947 36-Month	114.26" (2,902.20mm)	104.23" (2,647.44mm)	10.03" (254.76mm)	99th Driest	Driest since: 1945	1989
Jan 1945–Dec 1947 36-Month	114.26" (2,902.20mm)	104.23" (2,647.44mm)	10.03" (254.76mm)	28th Wettest	Wettest since: 1946	2010
Jan 1944–Dec 1947 48-Month	154.76" (3,930.90mm)	138.86" (3,527.04mm)	15.90" (403.86mm)	108th Driest	Driest since: 1946	1956
Jan 1944–Dec 1947 48-Month	154.76" (3,930.90mm)	138.86" (3,527.04mm)	15.90" (403.86mm)	18th Wettest	Wettest since: 1929	2010
Jan 1943–Dec 1947 60-Month	189.98" (4,825.49mm)	173.41" (4,404.61mm)	16.57" (420.88mm)	106th Driest	Driest since: 1946	1956
Jan 1943–Dec 1947 60-Month	189.98" (4,825.49mm)	173.41" (4,404.61mm)	16.57" (420.88mm)	19th Wettest	Wettest since: 1929	2011

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2023, retrieved on March 26, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings