Regional Rankings

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Please note, Palmer Indices are not available for NWS Regions. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Ohio Valley Climate Region

Precipitation Rankings, September 1897

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
September 1897 1-Month	0.70" (17.78mm)	3.47" (88.14mm)	-2.77" (-70.36mm)	1st Driest	Driest since: 1897	1897
September 1897 1-Month	0.70" (17.78mm)	3.47" (88.14mm)	-2.77" (-70.36mm)	128th Wettest	Wettest since: 1896	1926
Aug–Sep 1897 2-Month	3.01" (76.45mm)	7.14" (181.36mm)	-4.13" (-104.91mm)	1st Driest	Driest since: 1897	1897
Aug–Sep 1897 2-Month	3.01" (76.45mm)	7.14" (181.36mm)	-4.13" (-104.91mm)	128th Wettest	Wettest since: 1896	1926
Jul–Sep 1897 3-Month	7.11" (180.59mm)	11.14" (282.96mm)	-4.03" (-102.37mm)	4th Driest	Driest since: 1897	1953
Jul–Sep 1897 3-Month	7.11" (180.59mm)	11.14" (282.96mm)	-4.03" (-102.37mm)	125th Wettest	Wettest since: 1896	1926
Jun–Sep 1897 4-Month	11.44" (290.58mm)	15.39" (390.91mm)	-3.95" (-100.33mm)	5th Driest	Driest since: 1897	1953
Jun–Sep 1897 4-Month	11.44" (290.58mm)	15.39" (390.91mm)	-3.95" (-100.33mm)	124th Wettest	Wettest since: 1896	1915
May–Sep 1897 5-Month	14.47" (367.54mm)	19.66" (499.36mm)	-5.19" (-131.82mm)	4th Driest	Driest since: 1897	1930
May–Sep 1897 5-Month	14.47" (367.54mm)	19.66" (499.36mm)	-5.19" (-131.82mm)	125th Wettest	Wettest since: 1896	1915
Apr–Sep 1897 6-Month	19.13" (485.90mm)	23.57" (598.68mm)	-4.44" (-112.78mm)	9th Driest	Driest since: 1897	1930
Apr–Sep 1897 6-Month	19.13" (485.90mm)	23.57" (598.68mm)	-4.44" (-112.78mm)	120th Wettest	Wettest since: 1896	2011
Mar–Sep 1897 7-Month	25.99" (660.15mm)	27.38" (695.45mm)	-1.39" (-35.30mm)	39th Driest	Driest since: 1895	1930
Mar–Sep 1897 7-Month	25.99" (660.15mm)	27.38" (695.45mm)	-1.39" (-35.30mm)	90th Wettest	Wettest since: 1896	1945
Feb–Sep 1897 8-Month	29.77" (756.16mm)	30.05" (763.27mm)	-0.28" (-7.11mm)	51st Driest	Driest since: 1895	1930
Feb–Sep 1897 8-Month	29.77" (756.16mm)	30.05" (763.27mm)	-0.28" (-7.11mm)	78th Wettest	Wettest since: 1896	1945
Jan–Sep 1897 9-Month	33.62" (853.95mm)	33.10" (840.74mm)	0.52" (13.21mm)	62nd Driest	Driest since: 1895	1930
	33.62" (853.95mm)	33.10" (840.74mm)	0.52" (13.21mm)	67th Wettest	Wettest since: 1896	1950
	Ties: 2006
Dec 1896–Sep 1897 10-Month	34.80" (883.92mm)	36.19" (919.23mm)	-1.39" (-35.31mm)	37th Driest	Driest since: 1897	1930
Dec 1896–Sep 1897 10-Month	34.80" (883.92mm)	36.19" (919.23mm)	-1.39" (-35.31mm)	91st Wettest	Wettest since: 1896	1950
Nov 1896–Sep 1897 11-Month	38.39" (975.11mm)	39.33" (998.98mm)	-0.94" (-23.87mm)	42nd Driest	Driest since: 1897	1930
Nov 1896–Sep 1897 11-Month	38.39" (975.11mm)	39.33" (998.98mm)	-0.94" (-23.87mm)	86th Wettest	Wettest since: 1896	2019
Oct 1896–Sep 1897 12-Month	40.16" (1,020.06mm)	42.25" (1,073.15mm)	-2.09" (-53.09mm)	33rd Driest	Driest since: 1897	1925
Oct 1896–Sep 1897 12-Month	40.16" (1,020.06mm)	42.25" (1,073.15mm)	-2.09" (-53.09mm)	95th Wettest	Wettest since: 1896	2019
Apr 1896–Sep 1897 18-Month	67.34" (1,710.44mm)	65.79" (1,671.07mm)	1.55" (39.37mm)	70th Driest	Driest since: 1896	1931
Apr 1896–Sep 1897 18-Month	67.34" (1,710.44mm)	65.79" (1,671.07mm)	1.55" (39.37mm)	58th Wettest	Wettest to Date	2019
Oct 1895–Sep 1897 24-Month	84.56" (2,147.82mm)	84.47" (2,145.54mm)	0.09" (2.28mm)	53rd Driest	Driest since: 1897	1941
Oct 1895–Sep 1897 24-Month	84.56" (2,147.82mm)	84.47" (2,145.54mm)	0.09" (2.28mm)	74th Wettest	Wettest to Date	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published February 2023, retrieved on February 9, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings