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, October 2009

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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
October 2009 1-Month	"	"	"	0th Driest	Driest to Date	--
October 2009 1-Month	"	"	"	0th Wettest	Wettest to Date	--
Sep–Oct 2009 2-Month	"	"	"	0th Driest	Driest to Date	--
Sep–Oct 2009 2-Month	"	"	"	0th Wettest	Wettest to Date	--
Aug–Oct 2009 3-Month	"	"	"	0th Driest	Driest to Date	--
Aug–Oct 2009 3-Month	"	"	"	0th Wettest	Wettest to Date	--
Jul–Oct 2009 4-Month	"	"	"	0th Driest	Driest to Date	--
Jul–Oct 2009 4-Month	"	"	"	0th Wettest	Wettest to Date	--
Jun–Oct 2009 5-Month	"	"	"	0th Driest	Driest to Date	--
Jun–Oct 2009 5-Month	"	"	"	0th Wettest	Wettest to Date	--
May–Oct 2009 6-Month	"	"	"	0th Driest	Driest to Date	--
May–Oct 2009 6-Month	"	"	"	0th Wettest	Wettest to Date	--
Apr–Oct 2009 7-Month	"	"	"	0th Driest	Driest to Date	--
Apr–Oct 2009 7-Month	"	"	"	0th Wettest	Wettest to Date	--
Mar–Oct 2009 8-Month	"	"	"	0th Driest	Driest to Date	--
Mar–Oct 2009 8-Month	"	"	"	0th Wettest	Wettest to Date	--
Feb–Oct 2009 9-Month	"	"	"	0th Driest	Driest to Date	--
Feb–Oct 2009 9-Month	"	"	"	0th Wettest	Wettest to Date	--
Jan–Oct 2009 10-Month	"	"	"	0th Driest	Driest to Date	--
Jan–Oct 2009 10-Month	"	"	"	0th Wettest	Wettest to Date	--
Dec 2008–Oct 2009 11-Month	"	"	"	0th Driest	Driest to Date	--
Dec 2008–Oct 2009 11-Month	"	"	"	0th Wettest	Wettest to Date	--
Nov 2008–Oct 2009 12-Month	"	"	"	0th Driest	Driest to Date	--
Nov 2008–Oct 2009 12-Month	"	"	"	0th Wettest	Wettest to Date	--
May 2008–Oct 2009 18-Month	"	"	"	0th Driest	Driest to Date	--
May 2008–Oct 2009 18-Month	"	"	"	0th Wettest	Wettest to Date	--
Nov 2007–Oct 2009 24-Month	"	"	"	0th Driest	Driest to Date	--
Nov 2007–Oct 2009 24-Month	"	"	"	0th Wettest	Wettest to Date	--
Nov 2006–Oct 2009 36-Month	"	"	"	0th Driest	Driest to Date	--
Nov 2006–Oct 2009 36-Month	"	"	"	0th Wettest	Wettest to Date	--
Nov 2005–Oct 2009 48-Month	"	"	"	0th Driest	Driest to Date	--
Nov 2005–Oct 2009 48-Month	"	"	"	0th Wettest	Wettest to Date	--
Nov 2004–Oct 2009 60-Month	"	"	"	0th Driest	Driest to Date	--
Nov 2004–Oct 2009 60-Month	"	"	"	0th Wettest	Wettest to Date	--

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published November 2022, retrieved on November 29, 2022 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings