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, April 1918

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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
April 1918 1-Month	3.18" (80.77mm)	3.34" (84.84mm)	-0.16" (-4.07mm)	59th Driest	Driest since: 1916	2018
	3.18" (80.77mm)	3.34" (84.84mm)	-0.16" (-4.07mm)	70th Wettest	Wettest since: 1917	1973
	Ties: 1898, 1937, 1963
Mar–Apr 1918 2-Month	3.50" (88.90mm)	5.70" (144.78mm)	-2.20" (-55.88mm)	20th Driest	Driest since: 1915	1915
Mar–Apr 1918 2-Month	3.50" (88.90mm)	5.70" (144.78mm)	-2.20" (-55.88mm)	109th Wettest	Wettest since: 1917	1973
Feb–Apr 1918 3-Month	4.68" (118.87mm)	6.92" (175.77mm)	-2.24" (-56.90mm)	19th Driest	Driest since: 1915	1958
Feb–Apr 1918 3-Month	4.68" (118.87mm)	6.92" (175.77mm)	-2.24" (-56.90mm)	110th Wettest	Wettest since: 1917	1973
Jan–Apr 1918 4-Month	5.94" (150.88mm)	8.25" (209.55mm)	-2.31" (-58.67mm)	19th Driest	Driest since: 1914	1956
Jan–Apr 1918 4-Month	5.94" (150.88mm)	8.25" (209.55mm)	-2.31" (-58.67mm)	110th Wettest	Wettest since: 1917	1973
Dec 1917–Apr 1918 5-Month	6.57" (166.88mm)	9.74" (247.40mm)	-3.17" (-80.52mm)	7th Driest	Driest to Date	1956
Dec 1917–Apr 1918 5-Month	6.57" (166.88mm)	9.74" (247.40mm)	-3.17" (-80.52mm)	121st Wettest	Wettest since: 1917	1973
Nov 1917–Apr 1918 6-Month	6.68" (169.67mm)	11.86" (301.24mm)	-5.18" (-131.57mm)	3rd Driest	Driest to Date	1956
Nov 1917–Apr 1918 6-Month	6.68" (169.67mm)	11.86" (301.24mm)	-5.18" (-131.57mm)	125th Wettest	Wettest since: 1917	1973
Oct 1917–Apr 1918 7-Month	8.43" (214.12mm)	14.49" (368.05mm)	-6.06" (-153.93mm)	3rd Driest	Driest to Date	1956
Oct 1917–Apr 1918 7-Month	8.43" (214.12mm)	14.49" (368.05mm)	-6.06" (-153.93mm)	125th Wettest	Wettest since: 1917	1929
Sep 1917–Apr 1918 8-Month	12.19" (309.63mm)	18.41" (467.61mm)	-6.22" (-157.98mm)	7th Driest	Driest since: 1908	1956
Sep 1917–Apr 1918 8-Month	12.19" (309.63mm)	18.41" (467.61mm)	-6.22" (-157.98mm)	121st Wettest	Wettest since: 1917	1927
Aug 1917–Apr 1918 9-Month	13.97" (354.84mm)	22.15" (562.61mm)	-8.18" (-207.77mm)	3rd Driest	Driest since: 1902	1956
Aug 1917–Apr 1918 9-Month	13.97" (354.84mm)	22.15" (562.61mm)	-8.18" (-207.77mm)	125th Wettest	Wettest since: 1917	2019
Jul 1917–Apr 1918 10-Month	16.11" (409.19mm)	26.13" (663.70mm)	-10.02" (-254.51mm)	4th Driest	Driest since: 1902	1902
Jul 1917–Apr 1918 10-Month	16.11" (409.19mm)	26.13" (663.70mm)	-10.02" (-254.51mm)	124th Wettest	Wettest since: 1917	1993
Jun 1917–Apr 1918 11-Month	23.65" (600.71mm)	30.68" (779.27mm)	-7.03" (-178.56mm)	14th Driest	Driest since: 1914	1902
Jun 1917–Apr 1918 11-Month	23.65" (600.71mm)	30.68" (779.27mm)	-7.03" (-178.56mm)	114th Wettest	Wettest since: 1917	1903
May 1917–Apr 1918 12-Month	27.89" (708.41mm)	34.74" (882.40mm)	-6.85" (-173.99mm)	16th Driest	Driest since: 1914	1902
May 1917–Apr 1918 12-Month	27.89" (708.41mm)	34.74" (882.40mm)	-6.85" (-173.99mm)	112th Wettest	Wettest since: 1917	2011
Nov 1916–Apr 1918 18-Month	38.66" (981.96mm)	46.62" (1,184.15mm)	-7.96" (-202.19mm)	15th Driest	Driest since: 1915	1902
Nov 1916–Apr 1918 18-Month	38.66" (981.96mm)	46.62" (1,184.15mm)	-7.96" (-202.19mm)	112th Wettest	Wettest since: 1917	2011
May 1916–Apr 1918 24-Month	61.66" (1,566.16mm)	69.50" (1,765.30mm)	-7.84" (-199.14mm)	21st Driest	Driest since: 1915	1957
May 1916–Apr 1918 24-Month	61.66" (1,566.16mm)	69.50" (1,765.30mm)	-7.84" (-199.14mm)	106th Wettest	Wettest since: 1917	2011
May 1915–Apr 1918 36-Month	106.87" (2,714.50mm)	104.16" (2,645.66mm)	2.71" (68.84mm)	73rd Driest	Driest since: 1916	1958
May 1915–Apr 1918 36-Month	106.87" (2,714.50mm)	104.16" (2,645.66mm)	2.71" (68.84mm)	53rd Wettest	Wettest since: 1917	2011
May 1914–Apr 1918 48-Month	135.40" (3,439.16mm)	138.69" (3,522.73mm)	-3.29" (-83.57mm)	50th Driest	Driest since: 1917	1957
May 1914–Apr 1918 48-Month	135.40" (3,439.16mm)	138.69" (3,522.73mm)	-3.29" (-83.57mm)	75th Wettest	Wettest since: 1911	2011
May 1913–Apr 1918 60-Month	163.07" (4,141.98mm)	173.27" (4,401.06mm)	-10.20" (-259.08mm)	22nd Driest	Driest since: 1917	1958
May 1913–Apr 1918 60-Month	163.07" (4,141.98mm)	173.27" (4,401.06mm)	-10.20" (-259.08mm)	102nd Wettest	Wettest since: 1912	2012

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published March 2023, retrieved on March 22, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings