Divisional Rankings

Parameter:

Year:

Month:

State:

Division:

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, May 2021

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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
May 2021 1-Month	5.37" (136.40mm)	4.04" (102.62mm)	1.33" (33.78mm)	97th Driest	Driest since: 2020	1992
	5.37" (136.40mm)	4.04" (102.62mm)	1.33" (33.78mm)	32nd Wettest	Wettest since: 2019	1996
	Ties: 1993
Apr–May 2021 2-Month	8.49" (215.65mm)	7.38" (187.45mm)	1.11" (28.20mm)	79th Driest	Driest since: 2020	1956
Apr–May 2021 2-Month	8.49" (215.65mm)	7.38" (187.45mm)	1.11" (28.20mm)	50th Wettest	Wettest since: 2019	2013
Mar–May 2021 3-Month	11.46" (291.08mm)	9.74" (247.40mm)	1.72" (43.68mm)	90th Driest	Driest since: 2020	1956
Mar–May 2021 3-Month	11.46" (291.08mm)	9.74" (247.40mm)	1.72" (43.68mm)	39th Wettest	Wettest since: 2019	1973
Feb–May 2021 4-Month	12.37" (314.20mm)	10.97" (278.64mm)	1.40" (35.56mm)	85th Driest	Driest since: 2020	1956
Feb–May 2021 4-Month	12.37" (314.20mm)	10.97" (278.64mm)	1.40" (35.56mm)	44th Wettest	Wettest since: 2019	1973
Jan–May 2021 5-Month	14.42" (366.27mm)	12.29" (312.17mm)	2.13" (54.10mm)	99th Driest	Driest since: 2020	1956
Jan–May 2021 5-Month	14.42" (366.27mm)	12.29" (312.17mm)	2.13" (54.10mm)	30th Wettest	Wettest since: 2019	1973
Dec 2020–May 2021 6-Month	16.56" (420.62mm)	13.78" (350.01mm)	2.78" (70.61mm)	102nd Driest	Driest since: 2020	1956
Dec 2020–May 2021 6-Month	16.56" (420.62mm)	13.78" (350.01mm)	2.78" (70.61mm)	26th Wettest	Wettest since: 2019	1973
Nov 2020–May 2021 7-Month	19.51" (495.55mm)	15.90" (403.86mm)	3.61" (91.69mm)	103rd Driest	Driest since: 2020	1956
Nov 2020–May 2021 7-Month	19.51" (495.55mm)	15.90" (403.86mm)	3.61" (91.69mm)	25th Wettest	Wettest since: 2019	1973
Oct 2020–May 2021 8-Month	21.37" (542.80mm)	18.53" (470.66mm)	2.84" (72.14mm)	96th Driest	Driest since: 2020	1956
Oct 2020–May 2021 8-Month	21.37" (542.80mm)	18.53" (470.66mm)	2.84" (72.14mm)	32nd Wettest	Wettest since: 2019	2019
Sep 2020–May 2021 9-Month	26.40" (670.56mm)	22.45" (570.23mm)	3.95" (100.33mm)	102nd Driest	Driest since: 2020	1956
Sep 2020–May 2021 9-Month	26.40" (670.56mm)	22.45" (570.23mm)	3.95" (100.33mm)	26th Wettest	Wettest since: 2019	2019
Aug 2020–May 2021 10-Month	26.83" (681.48mm)	26.20" (665.48mm)	0.63" (16.00mm)	71st Driest	Driest since: 2018	1956
Aug 2020–May 2021 10-Month	26.83" (681.48mm)	26.20" (665.48mm)	0.63" (16.00mm)	57th Wettest	Wettest since: 2020	2019
Jul 2020–May 2021 11-Month	30.42" (772.67mm)	30.18" (766.57mm)	0.24" (6.10mm)	66th Driest	Driest since: 2018	1956
Jul 2020–May 2021 11-Month	30.42" (772.67mm)	30.18" (766.57mm)	0.24" (6.10mm)	62nd Wettest	Wettest since: 2020	2019
Jun 2020–May 2021 12-Month	36.49" (926.85mm)	34.73" (882.14mm)	1.76" (44.71mm)	79th Driest	Driest since: 2020	1956
Jun 2020–May 2021 12-Month	36.49" (926.85mm)	34.73" (882.14mm)	1.76" (44.71mm)	49th Wettest	Wettest since: 2019	1903
Dec 2019–May 2021 18-Month	50.58" (1,284.73mm)	48.55" (1,233.17mm)	2.03" (51.56mm)	72nd Driest	Driest since: 2018	1902
Dec 2019–May 2021 18-Month	50.58" (1,284.73mm)	48.55" (1,233.17mm)	2.03" (51.56mm)	55th Wettest	Wettest since: 2020	1974
Jun 2019–May 2021 24-Month	71.76" (1,822.70mm)	69.46" (1,764.28mm)	2.30" (58.42mm)	75th Driest	Driest since: 2018	1957
Jun 2019–May 2021 24-Month	71.76" (1,822.70mm)	69.46" (1,764.28mm)	2.30" (58.42mm)	52nd Wettest	Wettest since: 2020	2011
Jun 2018–May 2021 36-Month	123.73" (3,142.74mm)	104.12" (2,644.65mm)	19.61" (498.09mm)	115th Driest	Driest since: 2020	1958
Jun 2018–May 2021 36-Month	123.73" (3,142.74mm)	104.12" (2,644.65mm)	19.61" (498.09mm)	11th Wettest	Wettest since: 2013	2011
Jun 2017–May 2021 48-Month	149.40" (3,794.76mm)	138.68" (3,522.47mm)	10.72" (272.29mm)	91st Driest	Driest since: 2020	1957
Jun 2017–May 2021 48-Month	149.40" (3,794.76mm)	138.68" (3,522.47mm)	10.72" (272.29mm)	34th Wettest	Wettest since: 2019	2011
Jun 2016–May 2021 60-Month	184.99" (4,698.75mm)	173.32" (4,402.33mm)	11.67" (296.42mm)	87th Driest	Driest since: 2018	1958
Jun 2016–May 2021 60-Month	184.99" (4,698.75mm)	173.32" (4,402.33mm)	11.67" (296.42mm)	37th Wettest	Wettest since: 2020	2011

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published May 2023, retrieved on May 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings