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 1939

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Record Wettest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Wettest/Driest Since	Record
October 1939 1-Month	2.21" (56.13mm)	2.90" (73.66mm)	-0.69" (-17.53mm)	38th Driest	Driest since: 1938	1963
	2.21" (56.13mm)	2.90" (73.66mm)	-0.69" (-17.53mm)	91st Wettest	Wettest since: 1937	1919
	Ties: 1945, 1968
Sep–Oct 1939 2-Month	3.39" (86.11mm)	6.37" (161.80mm)	-2.98" (-75.69mm)	9th Driest	Driest since: 1908	1897
Sep–Oct 1939 2-Month	3.39" (86.11mm)	6.37" (161.80mm)	-2.98" (-75.69mm)	120th Wettest	Wettest since: 1938	1926
Aug–Oct 1939 3-Month	6.88" (174.75mm)	10.04" (255.02mm)	-3.16" (-80.27mm)	8th Driest	Driest since: 1908	1897
Aug–Oct 1939 3-Month	6.88" (174.75mm)	10.04" (255.02mm)	-3.16" (-80.27mm)	121st Wettest	Wettest since: 1938	1926
Jul–Oct 1939 4-Month	10.88" (276.35mm)	14.04" (356.62mm)	-3.16" (-80.27mm)	10th Driest	Driest since: 1930	1953
Jul–Oct 1939 4-Month	10.88" (276.35mm)	14.04" (356.62mm)	-3.16" (-80.27mm)	119th Wettest	Wettest since: 1938	1926
Jun–Oct 1939 5-Month	16.80" (426.72mm)	18.29" (464.57mm)	-1.49" (-37.85mm)	31st Driest	Driest since: 1936	1953
Jun–Oct 1939 5-Month	16.80" (426.72mm)	18.29" (464.57mm)	-1.49" (-37.85mm)	98th Wettest	Wettest since: 1938	1926
May–Oct 1939 6-Month	19.37" (492.00mm)	22.56" (573.02mm)	-3.19" (-81.02mm)	22nd Driest	Driest since: 1936	1930
May–Oct 1939 6-Month	19.37" (492.00mm)	22.56" (573.02mm)	-3.19" (-81.02mm)	107th Wettest	Wettest since: 1938	2009
Apr–Oct 1939 7-Month	24.56" (623.82mm)	26.47" (672.34mm)	-1.91" (-48.52mm)	34th Driest	Driest since: 1936	1930
Apr–Oct 1939 7-Month	24.56" (623.82mm)	26.47" (672.34mm)	-1.91" (-48.52mm)	95th Wettest	Wettest since: 1938	2009
Mar–Oct 1939 8-Month	28.60" (726.44mm)	30.28" (769.11mm)	-1.68" (-42.67mm)	36th Driest	Driest since: 1937	1930
Mar–Oct 1939 8-Month	28.60" (726.44mm)	30.28" (769.11mm)	-1.68" (-42.67mm)	93rd Wettest	Wettest since: 1938	2009
Feb–Oct 1939 9-Month	33.83" (859.28mm)	32.95" (836.93mm)	0.88" (22.35mm)	69th Driest	Driest since: 1937	1930
	33.83" (859.28mm)	32.95" (836.93mm)	0.88" (22.35mm)	60th Wettest	Wettest since: 1938	2019
	Ties: 1986
Jan–Oct 1939 10-Month	37.68" (957.07mm)	36.00" (914.40mm)	1.68" (42.67mm)	82nd Driest	Driest since: 1938	1930
	37.68" (957.07mm)	36.00" (914.40mm)	1.68" (42.67mm)	47th Wettest	Wettest since: 1937	2019
	Ties: 2022
Dec 1938–Oct 1939 11-Month	39.53" (1,004.06mm)	39.09" (992.89mm)	0.44" (11.17mm)	55th Driest	Driest since: 1936	1930
Dec 1938–Oct 1939 11-Month	39.53" (1,004.06mm)	39.09" (992.89mm)	0.44" (11.17mm)	73rd Wettest	Wettest since: 1938	2019
Nov 1938–Oct 1939 12-Month	43.07" (1,093.98mm)	42.23" (1,072.64mm)	0.84" (21.34mm)	63rd Driest	Driest since: 1938	1963
Nov 1938–Oct 1939 12-Month	43.07" (1,093.98mm)	42.23" (1,072.64mm)	0.84" (21.34mm)	65th Wettest	Wettest since: 1937	2019
May 1938–Oct 1939 18-Month	65.96" (1,675.38mm)	64.79" (1,645.67mm)	1.17" (29.71mm)	63rd Driest	Driest since: 1938	1931
May 1938–Oct 1939 18-Month	65.96" (1,675.38mm)	64.79" (1,645.67mm)	1.17" (29.71mm)	65th Wettest	Wettest since: 1935	2019
Nov 1937–Oct 1939 24-Month	84.86" (2,155.44mm)	84.46" (2,145.28mm)	0.40" (10.16mm)	56th Driest	Driest since: 1937	1931
Nov 1937–Oct 1939 24-Month	84.86" (2,155.44mm)	84.46" (2,145.28mm)	0.40" (10.16mm)	71st Wettest	Wettest since: 1938	2020
Nov 1936–Oct 1939 36-Month	130.92" (3,325.37mm)	126.69" (3,217.93mm)	4.23" (107.44mm)	78th Driest	Driest since: 1938	1954
	130.92" (3,325.37mm)	126.69" (3,217.93mm)	4.23" (107.44mm)	48th Wettest	Wettest since: 1929	2020
	Ties: 1980
Nov 1935–Oct 1939 48-Month	165.56" (4,205.22mm)	168.97" (4,291.84mm)	-3.41" (-86.62mm)	33rd Driest	Driest since: 1937	1956
	165.56" (4,205.22mm)	168.97" (4,291.84mm)	-3.41" (-86.62mm)	92nd Wettest	Wettest since: 1938	2021
	Ties: 1971
Nov 1934–Oct 1939 60-Month	212.52" (5,398.01mm)	211.20" (5,364.48mm)	1.32" (33.53mm)	60th Driest	Driest since: 1938	1956
Nov 1934–Oct 1939 60-Month	212.52" (5,398.01mm)	211.20" (5,364.48mm)	1.32" (33.53mm)	64th Wettest	Wettest since: 1930	2020

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published January 2023, retrieved on January 31, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings