Statewide 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

Precipitation Rankings, September 1993

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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
September 1993 1-Month	3.69" (93.73mm)	3.67" (93.22mm)	0.02" (0.51mm)	75th Driest	Driest since: 1991	1939
September 1993 1-Month	3.69" (93.73mm)	3.67" (93.22mm)	0.02" (0.51mm)	54th Wettest	Wettest since: 1992	1965
Aug–Sep 1993 2-Month	11.94" (303.28mm)	7.51" (190.75mm)	4.43" (112.53mm)	122nd Driest	Driest since: 1992	1976
Aug–Sep 1993 2-Month	11.94" (303.28mm)	7.51" (190.75mm)	4.43" (112.53mm)	7th Wettest	Wettest since: 1977	2018
Jul–Sep 1993 3-Month	22.39" (568.71mm)	11.36" (288.54mm)	11.03" (280.17mm)	128th Driest	Driest since: 1992	2013
Jul–Sep 1993 3-Month	22.39" (568.71mm)	11.36" (288.54mm)	11.03" (280.17mm)	1st Wettest	Wettest to Date	1993
Jun–Sep 1993 4-Month	30.39" (771.91mm)	16.00" (406.40mm)	14.39" (365.51mm)	128th Driest	Driest since: 1992	2012
Jun–Sep 1993 4-Month	30.39" (771.91mm)	16.00" (406.40mm)	14.39" (365.51mm)	1st Wettest	Wettest to Date	1993
May–Sep 1993 5-Month	35.99" (914.15mm)	20.04" (509.02mm)	15.95" (405.13mm)	128th Driest	Driest since: 1992	1976
May–Sep 1993 5-Month	35.99" (914.15mm)	20.04" (509.02mm)	15.95" (405.13mm)	1st Wettest	Wettest to Date	1993
Apr–Sep 1993 6-Month	39.64" (1,006.86mm)	22.99" (583.95mm)	16.65" (422.91mm)	128th Driest	Driest since: 1992	1988
Apr–Sep 1993 6-Month	39.64" (1,006.86mm)	22.99" (583.95mm)	16.65" (422.91mm)	1st Wettest	Wettest to Date	1993
Mar–Sep 1993 7-Month	42.39" (1,076.71mm)	24.94" (633.48mm)	17.45" (443.23mm)	128th Driest	Driest since: 1992	1988
Mar–Sep 1993 7-Month	42.39" (1,076.71mm)	24.94" (633.48mm)	17.45" (443.23mm)	1st Wettest	Wettest to Date	1993
Feb–Sep 1993 8-Month	43.54" (1,105.92mm)	25.96" (659.38mm)	17.58" (446.54mm)	128th Driest	Driest since: 1992	1988
Feb–Sep 1993 8-Month	43.54" (1,105.92mm)	25.96" (659.38mm)	17.58" (446.54mm)	1st Wettest	Wettest to Date	1993
Jan–Sep 1993 9-Month	44.72" (1,135.89mm)	26.93" (684.02mm)	17.79" (451.87mm)	128th Driest	Driest since: 1992	1988
Jan–Sep 1993 9-Month	44.72" (1,135.89mm)	26.93" (684.02mm)	17.79" (451.87mm)	1st Wettest	Wettest to Date	1993
Dec 1992–Sep 1993 10-Month	46.50" (1,181.10mm)	28.04" (712.22mm)	18.46" (468.88mm)	127th Driest	Driest since: 1992	1988
Dec 1992–Sep 1993 10-Month	46.50" (1,181.10mm)	28.04" (712.22mm)	18.46" (468.88mm)	1st Wettest	Wettest to Date	1993
Nov 1992–Sep 1993 11-Month	50.88" (1,292.35mm)	29.78" (756.41mm)	21.10" (535.94mm)	127th Driest	Driest since: 1992	1934
Nov 1992–Sep 1993 11-Month	50.88" (1,292.35mm)	29.78" (756.41mm)	21.10" (535.94mm)	1st Wettest	Wettest to Date	1993
Oct 1992–Sep 1993 12-Month	52.51" (1,333.75mm)	32.09" (815.09mm)	20.42" (518.66mm)	127th Driest	Driest since: 1992	1934
Oct 1992–Sep 1993 12-Month	52.51" (1,333.75mm)	32.09" (815.09mm)	20.42" (518.66mm)	1st Wettest	Wettest to Date	1993
Apr 1992–Sep 1993 18-Month	76.43" (1,941.32mm)	55.13" (1,400.30mm)	21.30" (541.02mm)	127th Driest	Driest since: 1992	1934
Apr 1992–Sep 1993 18-Month	76.43" (1,941.32mm)	55.13" (1,400.30mm)	21.30" (541.02mm)	1st Wettest	Wettest to Date	1993
Oct 1991–Sep 1993 24-Month	89.69" (2,278.13mm)	64.26" (1,632.20mm)	25.43" (645.93mm)	126th Driest	Driest since: 1992	1956
Oct 1991–Sep 1993 24-Month	89.69" (2,278.13mm)	64.26" (1,632.20mm)	25.43" (645.93mm)	1st Wettest	Wettest to Date	1993
Oct 1990–Sep 1993 36-Month	123.70" (3,141.98mm)	96.36" (2,447.54mm)	27.34" (694.44mm)	124th Driest	Driest since: 1992	1957
Oct 1990–Sep 1993 36-Month	123.70" (3,141.98mm)	96.36" (2,447.54mm)	27.34" (694.44mm)	2nd Wettest	Wettest to Date	2010
Oct 1989–Sep 1993 48-Month	160.13" (4,067.30mm)	128.36" (3,260.34mm)	31.77" (806.96mm)	121st Driest	Driest since: 1992	1958
Oct 1989–Sep 1993 48-Month	160.13" (4,067.30mm)	128.36" (3,260.34mm)	31.77" (806.96mm)	4th Wettest	Wettest to Date	2010
Oct 1988–Sep 1993 60-Month	186.33" (4,732.78mm)	160.34" (4,072.64mm)	25.99" (660.14mm)	117th Driest	Driest since: 1992	1957
Oct 1988–Sep 1993 60-Month	186.33" (4,732.78mm)	160.34" (4,072.64mm)	25.99" (660.14mm)	7th Wettest	Wettest to Date	2010

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Statewide Rankings, published March 2023, retrieved on March 20, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/rankings