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 1972

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Record Driest
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Bottom ⅓
Normal
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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2023)	Wettest/Driest Since	Record
May 1972 1-Month	3.92" (99.57mm)	4.04" (102.62mm)	-0.12" (-3.05mm)	68th Driest	Driest since: 1971	1992
May 1972 1-Month	3.92" (99.57mm)	4.04" (102.62mm)	-0.12" (-3.05mm)	62nd Wettest	Wettest since: 1970	1996
Apr–May 1972 2-Month	8.24" (209.30mm)	7.38" (187.45mm)	0.86" (21.85mm)	75th Driest	Driest since: 1971	1956
Apr–May 1972 2-Month	8.24" (209.30mm)	7.38" (187.45mm)	0.86" (21.85mm)	55th Wettest	Wettest since: 1967	2013
Mar–May 1972 3-Month	10.25" (260.35mm)	9.74" (247.40mm)	0.51" (12.95mm)	70th Driest	Driest since: 1971	1956
Mar–May 1972 3-Month	10.25" (260.35mm)	9.74" (247.40mm)	0.51" (12.95mm)	60th Wettest	Wettest since: 1970	1973
Feb–May 1972 4-Month	11.00" (279.40mm)	10.97" (278.64mm)	0.03" (0.76mm)	63rd Driest	Driest since: 1971	1956
Feb–May 1972 4-Month	11.00" (279.40mm)	10.97" (278.64mm)	0.03" (0.76mm)	67th Wettest	Wettest since: 1967	1973
Jan–May 1972 5-Month	11.72" (297.69mm)	12.29" (312.17mm)	-0.57" (-14.48mm)	52nd Driest	Driest since: 1971	1956
	11.72" (297.69mm)	12.29" (312.17mm)	-0.57" (-14.48mm)	78th Wettest	Wettest since: 1969	1973
	Ties: 1949
Dec 1971–May 1972 6-Month	15.92" (404.37mm)	13.78" (350.01mm)	2.14" (54.36mm)	94th Driest	Driest since: 1971	1956
Dec 1971–May 1972 6-Month	15.92" (404.37mm)	13.78" (350.01mm)	2.14" (54.36mm)	35th Wettest	Wettest since: 1965	1973
Nov 1971–May 1972 7-Month	18.66" (473.96mm)	15.90" (403.86mm)	2.76" (70.10mm)	93rd Driest	Driest since: 1971	1956
Nov 1971–May 1972 7-Month	18.66" (473.96mm)	15.90" (403.86mm)	2.76" (70.10mm)	36th Wettest	Wettest since: 1965	1973
Oct 1971–May 1972 8-Month	21.52" (546.61mm)	18.53" (470.66mm)	2.99" (75.95mm)	99th Driest	Driest since: 1971	1956
Oct 1971–May 1972 8-Month	21.52" (546.61mm)	18.53" (470.66mm)	2.99" (75.95mm)	30th Wettest	Wettest since: 1962	2019
Sep 1971–May 1972 9-Month	25.32" (643.13mm)	22.45" (570.23mm)	2.87" (72.90mm)	94th Driest	Driest since: 1971	1956
Sep 1971–May 1972 9-Month	25.32" (643.13mm)	22.45" (570.23mm)	2.87" (72.90mm)	35th Wettest	Wettest since: 1966	2019
Aug 1971–May 1972 10-Month	26.65" (676.91mm)	26.20" (665.48mm)	0.45" (11.43mm)	71st Driest	Driest since: 1970	1956
Aug 1971–May 1972 10-Month	26.65" (676.91mm)	26.20" (665.48mm)	0.45" (11.43mm)	58th Wettest	Wettest since: 1971	2019
Jul 1971–May 1972 11-Month	31.53" (800.86mm)	30.18" (766.57mm)	1.35" (34.29mm)	78th Driest	Driest since: 1970	1956
Jul 1971–May 1972 11-Month	31.53" (800.86mm)	30.18" (766.57mm)	1.35" (34.29mm)	51st Wettest	Wettest since: 1971	2019
Jun 1971–May 1972 12-Month	33.93" (861.82mm)	34.73" (882.14mm)	-0.80" (-20.32mm)	60th Driest	Driest since: 1969	1956
Jun 1971–May 1972 12-Month	33.93" (861.82mm)	34.73" (882.14mm)	-0.80" (-20.32mm)	69th Wettest	Wettest since: 1971	1903
Dec 1970–May 1972 18-Month	43.69" (1,109.73mm)	48.55" (1,233.17mm)	-4.86" (-123.44mm)	30th Driest	Driest since: 1969	1902
Dec 1970–May 1972 18-Month	43.69" (1,109.73mm)	48.55" (1,233.17mm)	-4.86" (-123.44mm)	98th Wettest	Wettest since: 1971	1974
Jun 1970–May 1972 24-Month	74.34" (1,888.24mm)	69.46" (1,764.28mm)	4.88" (123.96mm)	85th Driest	Driest since: 1970	1957
	74.34" (1,888.24mm)	69.46" (1,764.28mm)	4.88" (123.96mm)	43rd Wettest	Wettest since: 1971	2011
	Ties: 2013
Jun 1969–May 1972 36-Month	111.44" (2,830.58mm)	104.12" (2,644.65mm)	7.32" (185.93mm)	91st Driest	Driest since: 1971	1958
Jun 1969–May 1972 36-Month	111.44" (2,830.58mm)	104.12" (2,644.65mm)	7.32" (185.93mm)	36th Wettest	Wettest since: 1962	2011
Jun 1968–May 1972 48-Month	143.90" (3,655.06mm)	138.68" (3,522.47mm)	5.22" (132.59mm)	80th Driest	Driest since: 1971	1957
Jun 1968–May 1972 48-Month	143.90" (3,655.06mm)	138.68" (3,522.47mm)	5.22" (132.59mm)	46th Wettest	Wettest since: 1963	2011
Jun 1967–May 1972 60-Month	177.17" (4,500.12mm)	173.32" (4,402.33mm)	3.85" (97.79mm)	72nd Driest	Driest since: 1971	1958
Jun 1967–May 1972 60-Month	177.17" (4,500.12mm)	173.32" (4,402.33mm)	3.85" (97.79mm)	53rd Wettest	Wettest since: 1963	2011

Citing This Page

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