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 2018

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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 2018 1-Month	0.50" (12.70mm)	3.34" (84.84mm)	-2.84" (-72.14mm)	1st Driest	Driest since: 2018	2018
April 2018 1-Month	0.50" (12.70mm)	3.34" (84.84mm)	-2.84" (-72.14mm)	128th Wettest	Wettest since: 2017	1973
Mar–Apr 2018 2-Month	3.36" (85.34mm)	5.70" (144.78mm)	-2.34" (-59.44mm)	16th Driest	Driest since: 2015	1915
Mar–Apr 2018 2-Month	3.36" (85.34mm)	5.70" (144.78mm)	-2.34" (-59.44mm)	113th Wettest	Wettest since: 2017	1973
Feb–Apr 2018 3-Month	5.77" (146.56mm)	6.92" (175.77mm)	-1.15" (-29.21mm)	37th Driest	Driest since: 2016	1958
Feb–Apr 2018 3-Month	5.77" (146.56mm)	6.92" (175.77mm)	-1.15" (-29.21mm)	92nd Wettest	Wettest since: 2017	1973
Jan–Apr 2018 4-Month	6.29" (159.77mm)	8.25" (209.55mm)	-1.96" (-49.78mm)	27th Driest	Driest since: 2016	1956
Jan–Apr 2018 4-Month	6.29" (159.77mm)	8.25" (209.55mm)	-1.96" (-49.78mm)	102nd Wettest	Wettest since: 2017	1973
Dec 2017–Apr 2018 5-Month	6.73" (170.94mm)	9.74" (247.40mm)	-3.01" (-76.46mm)	9th Driest	Driest since: 2015	1956
	6.73" (170.94mm)	9.74" (247.40mm)	-3.01" (-76.46mm)	119th Wettest	Wettest since: 2017	1973
	Ties: 2003
Nov 2017–Apr 2018 6-Month	7.62" (193.55mm)	11.86" (301.24mm)	-4.24" (-107.69mm)	6th Driest	Driest since: 2015	1956
Nov 2017–Apr 2018 6-Month	7.62" (193.55mm)	11.86" (301.24mm)	-4.24" (-107.69mm)	122nd Wettest	Wettest since: 2017	1973
Oct 2017–Apr 2018 7-Month	12.39" (314.71mm)	14.49" (368.05mm)	-2.10" (-53.34mm)	29th Driest	Driest since: 2015	1956
Oct 2017–Apr 2018 7-Month	12.39" (314.71mm)	14.49" (368.05mm)	-2.10" (-53.34mm)	99th Wettest	Wettest since: 2017	1929
Sep 2017–Apr 2018 8-Month	14.83" (376.68mm)	18.41" (467.61mm)	-3.58" (-90.93mm)	24th Driest	Driest since: 2003	1956
Sep 2017–Apr 2018 8-Month	14.83" (376.68mm)	18.41" (467.61mm)	-3.58" (-90.93mm)	104th Wettest	Wettest since: 2017	1927
Aug 2017–Apr 2018 9-Month	17.30" (439.42mm)	22.15" (562.61mm)	-4.85" (-123.19mm)	17th Driest	Driest since: 2014	1956
Aug 2017–Apr 2018 9-Month	17.30" (439.42mm)	22.15" (562.61mm)	-4.85" (-123.19mm)	111th Wettest	Wettest since: 2017	2019
Jul 2017–Apr 2018 10-Month	20.06" (509.52mm)	26.13" (663.70mm)	-6.07" (-154.18mm)	14th Driest	Driest since: 2014	1902
Jul 2017–Apr 2018 10-Month	20.06" (509.52mm)	26.13" (663.70mm)	-6.07" (-154.18mm)	114th Wettest	Wettest since: 2017	1993
Jun 2017–Apr 2018 11-Month	21.89" (556.01mm)	30.68" (779.27mm)	-8.79" (-223.26mm)	7th Driest	Driest since: 2014	1902
Jun 2017–Apr 2018 11-Month	21.89" (556.01mm)	30.68" (779.27mm)	-8.79" (-223.26mm)	121st Wettest	Wettest since: 2017	1903
May 2017–Apr 2018 12-Month	25.48" (647.19mm)	34.74" (882.40mm)	-9.26" (-235.21mm)	5th Driest	Driest since: 1989	1902
May 2017–Apr 2018 12-Month	25.48" (647.19mm)	34.74" (882.40mm)	-9.26" (-235.21mm)	123rd Wettest	Wettest since: 2017	2011
Nov 2016–Apr 2018 18-Month	37.66" (956.56mm)	46.62" (1,184.15mm)	-8.96" (-227.59mm)	11th Driest	Driest since: 1989	1902
Nov 2016–Apr 2018 18-Month	37.66" (956.56mm)	46.62" (1,184.15mm)	-8.96" (-227.59mm)	116th Wettest	Wettest since: 2017	2011
May 2016–Apr 2018 24-Month	61.28" (1,556.51mm)	69.50" (1,765.30mm)	-8.22" (-208.79mm)	20th Driest	Driest since: 1990	1957
May 2016–Apr 2018 24-Month	61.28" (1,556.51mm)	69.50" (1,765.30mm)	-8.22" (-208.79mm)	107th Wettest	Wettest since: 2017	2011
May 2015–Apr 2018 36-Month	105.44" (2,678.18mm)	104.16" (2,645.66mm)	1.28" (32.52mm)	65th Driest	Driest since: 2015	1958
May 2015–Apr 2018 36-Month	105.44" (2,678.18mm)	104.16" (2,645.66mm)	1.28" (32.52mm)	61st Wettest	Wettest since: 2017	2011
May 2014–Apr 2018 48-Month	142.66" (3,623.56mm)	138.69" (3,522.73mm)	3.97" (100.83mm)	71st Driest	Driest since: 2015	1957
May 2014–Apr 2018 48-Month	142.66" (3,623.56mm)	138.69" (3,522.73mm)	3.97" (100.83mm)	54th Wettest	Wettest since: 2017	2011
May 2013–Apr 2018 60-Month	173.63" (4,410.20mm)	173.27" (4,401.06mm)	0.36" (9.14mm)	61st Driest	Driest since: 2007	1958
May 2013–Apr 2018 60-Month	173.63" (4,410.20mm)	173.27" (4,401.06mm)	0.36" (9.14mm)	63rd Wettest	Wettest since: 2017	2012

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 1, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings