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 1930

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Record Driest
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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2023)	Wettest/Driest Since	Record
April 1930 1-Month	2.11" (53.59mm)	3.34" (84.84mm)	-1.23" (-31.25mm)	31st Driest	Driest since: 1926	2018
April 1930 1-Month	2.11" (53.59mm)	3.34" (84.84mm)	-1.23" (-31.25mm)	99th Wettest	Wettest since: 1929	1973
Mar–Apr 1930 2-Month	3.18" (80.77mm)	5.70" (144.78mm)	-2.52" (-64.01mm)	12th Driest	Driest since: 1926	1915
Mar–Apr 1930 2-Month	3.18" (80.77mm)	5.70" (144.78mm)	-2.52" (-64.01mm)	118th Wettest	Wettest since: 1929	1973
Feb–Apr 1930 3-Month	4.32" (109.73mm)	6.92" (175.77mm)	-2.60" (-66.04mm)	13th Driest	Driest since: 1926	1958
	4.32" (109.73mm)	6.92" (175.77mm)	-2.60" (-66.04mm)	117th Wettest	Wettest since: 1929	1973
	Ties: 1989
Jan–Apr 1930 4-Month	6.23" (158.24mm)	8.25" (209.55mm)	-2.02" (-51.31mm)	25th Driest	Driest since: 1926	1956
Jan–Apr 1930 4-Month	6.23" (158.24mm)	8.25" (209.55mm)	-2.02" (-51.31mm)	105th Wettest	Wettest since: 1929	1973
Dec 1929–Apr 1930 5-Month	6.87" (174.50mm)	9.74" (247.40mm)	-2.87" (-72.90mm)	13th Driest	Driest since: 1918	1956
Dec 1929–Apr 1930 5-Month	6.87" (174.50mm)	9.74" (247.40mm)	-2.87" (-72.90mm)	116th Wettest	Wettest since: 1929	1973
Nov 1929–Apr 1930 6-Month	8.38" (212.85mm)	11.86" (301.24mm)	-3.48" (-88.39mm)	16th Driest	Driest since: 1926	1956
Nov 1929–Apr 1930 6-Month	8.38" (212.85mm)	11.86" (301.24mm)	-3.48" (-88.39mm)	113th Wettest	Wettest since: 1929	1973
Oct 1929–Apr 1930 7-Month	12.63" (320.80mm)	14.49" (368.05mm)	-1.86" (-47.25mm)	32nd Driest	Driest since: 1925	1956
Oct 1929–Apr 1930 7-Month	12.63" (320.80mm)	14.49" (368.05mm)	-1.86" (-47.25mm)	97th Wettest	Wettest since: 1929	1929
Sep 1929–Apr 1930 8-Month	16.31" (414.27mm)	18.41" (467.61mm)	-2.10" (-53.34mm)	41st Driest	Driest since: 1925	1956
	16.31" (414.27mm)	18.41" (467.61mm)	-2.10" (-53.34mm)	88th Wettest	Wettest since: 1929	1927
	Ties: 1905, 1975
Aug 1929–Apr 1930 9-Month	18.77" (476.76mm)	22.15" (562.61mm)	-3.38" (-85.85mm)	28th Driest	Driest since: 1923	1956
Aug 1929–Apr 1930 9-Month	18.77" (476.76mm)	22.15" (562.61mm)	-3.38" (-85.85mm)	101st Wettest	Wettest since: 1929	2019
Jul 1929–Apr 1930 10-Month	24.21" (614.93mm)	26.13" (663.70mm)	-1.92" (-48.77mm)	43rd Driest	Driest since: 1924	1902
Jul 1929–Apr 1930 10-Month	24.21" (614.93mm)	26.13" (663.70mm)	-1.92" (-48.77mm)	86th Wettest	Wettest since: 1929	1993
Jun 1929–Apr 1930 11-Month	27.84" (707.14mm)	30.68" (779.27mm)	-2.84" (-72.13mm)	41st Driest	Driest since: 1924	1902
Jun 1929–Apr 1930 11-Month	27.84" (707.14mm)	30.68" (779.27mm)	-2.84" (-72.13mm)	88th Wettest	Wettest since: 1929	1903
May 1929–Apr 1930 12-Month	29.70" (754.38mm)	34.74" (882.40mm)	-5.04" (-128.02mm)	27th Driest	Driest since: 1923	1902
May 1929–Apr 1930 12-Month	29.70" (754.38mm)	34.74" (882.40mm)	-5.04" (-128.02mm)	102nd Wettest	Wettest since: 1929	2011
Nov 1928–Apr 1930 18-Month	48.36" (1,228.34mm)	46.62" (1,184.15mm)	1.74" (44.19mm)	70th Driest	Driest since: 1926	1902
Nov 1928–Apr 1930 18-Month	48.36" (1,228.34mm)	46.62" (1,184.15mm)	1.74" (44.19mm)	58th Wettest	Wettest since: 1929	2011
May 1928–Apr 1930 24-Month	77.30" (1,963.42mm)	69.50" (1,765.30mm)	7.80" (198.12mm)	98th Driest	Driest since: 1926	1957
May 1928–Apr 1930 24-Month	77.30" (1,963.42mm)	69.50" (1,765.30mm)	7.80" (198.12mm)	30th Wettest	Wettest since: 1929	2011
May 1927–Apr 1930 36-Month	110.97" (2,818.64mm)	104.16" (2,645.66mm)	6.81" (172.98mm)	92nd Driest	Driest since: 1926	1958
May 1927–Apr 1930 36-Month	110.97" (2,818.64mm)	104.16" (2,645.66mm)	6.81" (172.98mm)	35th Wettest	Wettest since: 1929	2011
May 1926–Apr 1930 48-Month	157.84" (4,009.14mm)	138.69" (3,522.73mm)	19.15" (486.41mm)	113th Driest	Driest since: 1928	1957
May 1926–Apr 1930 48-Month	157.84" (4,009.14mm)	138.69" (3,522.73mm)	19.15" (486.41mm)	13th Wettest	Wettest since: 1929	2011
May 1925–Apr 1930 60-Month	192.57" (4,891.28mm)	173.27" (4,401.06mm)	19.30" (490.22mm)	109th Driest	Driest since: 1928	1958
May 1925–Apr 1930 60-Month	192.57" (4,891.28mm)	173.27" (4,401.06mm)	19.30" (490.22mm)	16th Wettest	Wettest since: 1929	2012

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published May 2023, retrieved on June 8, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings