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, May 1933

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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 1933 1-Month	6.70" (170.18mm)	4.04" (102.62mm)	2.66" (67.56mm)	115th Driest	Driest since: 1932	1992
May 1933 1-Month	6.70" (170.18mm)	4.04" (102.62mm)	2.66" (67.56mm)	14th Wettest	Wettest since: 1918	1996
Apr–May 1933 2-Month	8.40" (213.36mm)	7.38" (187.45mm)	1.02" (25.91mm)	76th Driest	Driest since: 1932	1956
Apr–May 1933 2-Month	8.40" (213.36mm)	7.38" (187.45mm)	1.02" (25.91mm)	53rd Wettest	Wettest since: 1927	2013
Mar–May 1933 3-Month	11.09" (281.69mm)	9.74" (247.40mm)	1.35" (34.29mm)	79th Driest	Driest since: 1932	1956
Mar–May 1933 3-Month	11.09" (281.69mm)	9.74" (247.40mm)	1.35" (34.29mm)	50th Wettest	Wettest since: 1927	1973
Feb–May 1933 4-Month	11.47" (291.34mm)	10.97" (278.64mm)	0.50" (12.70mm)	69th Driest	Driest since: 1932	1956
Feb–May 1933 4-Month	11.47" (291.34mm)	10.97" (278.64mm)	0.50" (12.70mm)	60th Wettest	Wettest since: 1929	1973
Jan–May 1933 5-Month	12.82" (325.63mm)	12.29" (312.17mm)	0.53" (13.46mm)	65th Driest	Driest since: 1932	1956
Jan–May 1933 5-Month	12.82" (325.63mm)	12.29" (312.17mm)	0.53" (13.46mm)	64th Wettest	Wettest since: 1929	1973
Dec 1932–May 1933 6-Month	15.14" (384.56mm)	13.78" (350.01mm)	1.36" (34.55mm)	82nd Driest	Driest since: 1932	1956
Dec 1932–May 1933 6-Month	15.14" (384.56mm)	13.78" (350.01mm)	1.36" (34.55mm)	46th Wettest	Wettest since: 1929	1973
Nov 1932–May 1933 7-Month	16.83" (427.48mm)	15.90" (403.86mm)	0.93" (23.62mm)	73rd Driest	Driest since: 1931	1956
Nov 1932–May 1933 7-Month	16.83" (427.48mm)	15.90" (403.86mm)	0.93" (23.62mm)	55th Wettest	Wettest since: 1932	1973
Oct 1932–May 1933 8-Month	20.07" (509.78mm)	18.53" (470.66mm)	1.54" (39.12mm)	84th Driest	Driest since: 1931	1956
	20.07" (509.78mm)	18.53" (470.66mm)	1.54" (39.12mm)	44th Wettest	Wettest since: 1932	2019
	Ties: 1976
Sep 1932–May 1933 9-Month	21.35" (542.29mm)	22.45" (570.23mm)	-1.10" (-27.94mm)	53rd Driest	Driest since: 1931	1956
Sep 1932–May 1933 9-Month	21.35" (542.29mm)	22.45" (570.23mm)	-1.10" (-27.94mm)	75th Wettest	Wettest since: 1932	2019
Aug 1932–May 1933 10-Month	29.54" (750.32mm)	26.20" (665.48mm)	3.34" (84.84mm)	93rd Driest	Driest since: 1931	1956
Aug 1932–May 1933 10-Month	29.54" (750.32mm)	26.20" (665.48mm)	3.34" (84.84mm)	35th Wettest	Wettest since: 1932	2019
Jul 1932–May 1933 11-Month	34.52" (876.81mm)	30.18" (766.57mm)	4.34" (110.24mm)	98th Driest	Driest since: 1931	1956
Jul 1932–May 1933 11-Month	34.52" (876.81mm)	30.18" (766.57mm)	4.34" (110.24mm)	30th Wettest	Wettest since: 1932	2019
Jun 1932–May 1933 12-Month	41.04" (1,042.42mm)	34.73" (882.14mm)	6.31" (160.28mm)	105th Driest	Driest since: 1932	1956
Jun 1932–May 1933 12-Month	41.04" (1,042.42mm)	34.73" (882.14mm)	6.31" (160.28mm)	23rd Wettest	Wettest since: 1929	1903
Dec 1931–May 1933 18-Month	52.79" (1,340.87mm)	48.55" (1,233.17mm)	4.24" (107.70mm)	90th Driest	Driest since: 1932	1902
	52.79" (1,340.87mm)	48.55" (1,233.17mm)	4.24" (107.70mm)	37th Wettest	Wettest since: 1929	1974
	Ties: 1899
Jun 1931–May 1933 24-Month	80.17" (2,036.32mm)	69.46" (1,764.28mm)	10.71" (272.04mm)	108th Driest	Driest since: 1932	1957
Jun 1931–May 1933 24-Month	80.17" (2,036.32mm)	69.46" (1,764.28mm)	10.71" (272.04mm)	19th Wettest	Wettest since: 1928	2011
Jun 1930–May 1933 36-Month	110.98" (2,818.89mm)	104.12" (2,644.65mm)	6.86" (174.24mm)	89th Driest	Driest since: 1932	1958
Jun 1930–May 1933 36-Month	110.98" (2,818.89mm)	104.12" (2,644.65mm)	6.86" (174.24mm)	37th Wettest	Wettest since: 1929	2011
Jun 1929–May 1933 48-Month	141.74" (3,600.20mm)	138.68" (3,522.47mm)	3.06" (77.73mm)	70th Driest	Driest since: 1931	1957
Jun 1929–May 1933 48-Month	141.74" (3,600.20mm)	138.68" (3,522.47mm)	3.06" (77.73mm)	55th Wettest	Wettest since: 1932	2011
Jun 1928–May 1933 60-Month	189.44" (4,811.78mm)	173.32" (4,402.33mm)	16.12" (409.45mm)	98th Driest	Driest since: 1932	1958
Jun 1928–May 1933 60-Month	189.44" (4,811.78mm)	173.32" (4,402.33mm)	16.12" (409.45mm)	26th Wettest	Wettest since: 1931	2011

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published May 2023, retrieved on May 28, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings