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, October 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
October 1940 1-Month	2.21" (56.13mm)	2.61" (66.29mm)	-0.40" (-10.16mm)	59th Driest	Driest since: 1939	1964
October 1940 1-Month	2.21" (56.13mm)	2.61" (66.29mm)	-0.40" (-10.16mm)	70th Wettest	Wettest since: 1936	1941
Sep–Oct 1940 2-Month	2.41" (61.21mm)	6.52" (165.61mm)	-4.11" (-104.40mm)	7th Driest	Driest since: 1939	1952
Sep–Oct 1940 2-Month	2.41" (61.21mm)	6.52" (165.61mm)	-4.11" (-104.40mm)	122nd Wettest	Wettest since: 1938	1941
Aug–Oct 1940 3-Month	9.15" (232.41mm)	10.24" (260.10mm)	-1.09" (-27.69mm)	55th Driest	Driest since: 1939	1953
Aug–Oct 1940 3-Month	9.15" (232.41mm)	10.24" (260.10mm)	-1.09" (-27.69mm)	74th Wettest	Wettest since: 1936	1970
Jul–Oct 1940 4-Month	12.42" (315.47mm)	14.23" (361.44mm)	-1.81" (-45.97mm)	52nd Driest	Driest since: 1939	1953
Jul–Oct 1940 4-Month	12.42" (315.47mm)	14.23" (361.44mm)	-1.81" (-45.97mm)	77th Wettest	Wettest since: 1936	1902
Jun–Oct 1940 5-Month	14.41" (366.01mm)	18.83" (478.28mm)	-4.42" (-112.27mm)	28th Driest	Driest since: 1937	1953
Jun–Oct 1940 5-Month	14.41" (366.01mm)	18.83" (478.28mm)	-4.42" (-112.27mm)	101st Wettest	Wettest since: 1939	2010
May–Oct 1940 6-Month	16.74" (425.20mm)	22.88" (581.15mm)	-6.14" (-155.95mm)	14th Driest	Driest since: 1937	1953
May–Oct 1940 6-Month	16.74" (425.20mm)	22.88" (581.15mm)	-6.14" (-155.95mm)	115th Wettest	Wettest since: 1939	2010
Apr–Oct 1940 7-Month	20.38" (517.65mm)	26.22" (665.99mm)	-5.84" (-148.34mm)	21st Driest	Driest since: 1937	1953
Apr–Oct 1940 7-Month	20.38" (517.65mm)	26.22" (665.99mm)	-5.84" (-148.34mm)	108th Wettest	Wettest since: 1939	2010
Mar–Oct 1940 8-Month	22.27" (565.66mm)	28.57" (725.68mm)	-6.30" (-160.02mm)	21st Driest	Driest since: 1937	1988
Mar–Oct 1940 8-Month	22.27" (565.66mm)	28.57" (725.68mm)	-6.30" (-160.02mm)	108th Wettest	Wettest since: 1939	2010
Feb–Oct 1940 9-Month	23.44" (595.38mm)	29.80" (756.92mm)	-6.36" (-161.54mm)	18th Driest	Driest since: 1937	1988
Feb–Oct 1940 9-Month	23.44" (595.38mm)	29.80" (756.92mm)	-6.36" (-161.54mm)	111th Wettest	Wettest since: 1939	2010
Jan–Oct 1940 10-Month	24.43" (620.52mm)	31.12" (790.45mm)	-6.69" (-169.93mm)	15th Driest	Driest since: 1936	1988
Jan–Oct 1940 10-Month	24.43" (620.52mm)	31.12" (790.45mm)	-6.69" (-169.93mm)	114th Wettest	Wettest since: 1939	2010
Dec 1939–Oct 1940 11-Month	25.17" (639.32mm)	32.62" (828.55mm)	-7.45" (-189.23mm)	14th Driest	Driest since: 1936	1901
Dec 1939–Oct 1940 11-Month	25.17" (639.32mm)	32.62" (828.55mm)	-7.45" (-189.23mm)	114th Wettest	Wettest since: 1939	2010
Nov 1939–Oct 1940 12-Month	26.26" (667.00mm)	34.73" (882.14mm)	-8.47" (-215.14mm)	9th Driest	Driest since: 1934	1956
Nov 1939–Oct 1940 12-Month	26.26" (667.00mm)	34.73" (882.14mm)	-8.47" (-215.14mm)	119th Wettest	Wettest since: 1939	1993
May 1939–Oct 1940 18-Month	45.75" (1,162.05mm)	57.61" (1,463.29mm)	-11.86" (-301.24mm)	9th Driest	Driest since: 1934	1956
May 1939–Oct 1940 18-Month	45.75" (1,162.05mm)	57.61" (1,463.29mm)	-11.86" (-301.24mm)	119th Wettest	Wettest since: 1939	2010
Nov 1938–Oct 1940 24-Month	60.70" (1,541.78mm)	69.50" (1,765.30mm)	-8.80" (-223.52mm)	17th Driest	Driest since: 1937	1956
	60.70" (1,541.78mm)	69.50" (1,765.30mm)	-8.80" (-223.52mm)	110th Wettest	Wettest since: 1939	2010
	Ties: 1911
Nov 1937–Oct 1940 36-Month	95.30" (2,420.62mm)	104.21" (2,646.93mm)	-8.91" (-226.31mm)	21st Driest	Driest since: 1938	1989
Nov 1937–Oct 1940 36-Month	95.30" (2,420.62mm)	104.21" (2,646.93mm)	-8.91" (-226.31mm)	105th Wettest	Wettest since: 1939	2010
Nov 1936–Oct 1940 48-Month	123.75" (3,143.25mm)	138.84" (3,526.54mm)	-15.09" (-383.29mm)	11th Driest	Driest since: 1937	1956
Nov 1936–Oct 1940 48-Month	123.75" (3,143.25mm)	138.84" (3,526.54mm)	-15.09" (-383.29mm)	114th Wettest	Wettest since: 1939	2010
Nov 1935–Oct 1940 60-Month	152.24" (3,866.90mm)	173.39" (4,404.11mm)	-21.15" (-537.21mm)	7th Driest	Driest since: 1914	1956
Nov 1935–Oct 1940 60-Month	152.24" (3,866.90mm)	173.39" (4,404.11mm)	-21.15" (-537.21mm)	117th Wettest	Wettest since: 1939	2011

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2023, retrieved on March 21, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings