Regional Rankings

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Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. 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, December 1966

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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
December 1966 1-Month	3.74" (95.00mm)	3.11" (78.99mm)	0.63" (16.01mm)	91st Driest	Driest since: 1965	1958
December 1966 1-Month	3.74" (95.00mm)	3.11" (78.99mm)	0.63" (16.01mm)	38th Wettest	Wettest since: 1961	1990
Nov–Dec 1966 2-Month	7.21" (183.13mm)	6.23" (158.24mm)	0.98" (24.89mm)	90th Driest	Driest since: 1965	1976
Nov–Dec 1966 2-Month	7.21" (183.13mm)	6.23" (158.24mm)	0.98" (24.89mm)	39th Wettest	Wettest since: 1961	2015
Oct–Dec 1966 3-Month	9.35" (237.49mm)	9.13" (231.90mm)	0.22" (5.59mm)	65th Driest	Driest since: 1965	1963
Oct–Dec 1966 3-Month	9.35" (237.49mm)	9.13" (231.90mm)	0.22" (5.59mm)	64th Wettest	Wettest since: 1961	1990
Sep–Dec 1966 4-Month	13.00" (330.20mm)	12.60" (320.04mm)	0.40" (10.16mm)	64th Driest	Driest since: 1965	1963
Sep–Dec 1966 4-Month	13.00" (330.20mm)	12.60" (320.04mm)	0.40" (10.16mm)	65th Wettest	Wettest since: 1961	1926
Aug–Dec 1966 5-Month	16.91" (429.51mm)	16.27" (413.26mm)	0.64" (16.25mm)	69th Driest	Driest since: 1965	1953
Aug–Dec 1966 5-Month	16.91" (429.51mm)	16.27" (413.26mm)	0.64" (16.25mm)	60th Wettest	Wettest since: 1961	1926
Jul–Dec 1966 6-Month	20.39" (517.91mm)	20.27" (514.86mm)	0.12" (3.05mm)	57th Driest	Driest since: 1965	1953
Jul–Dec 1966 6-Month	20.39" (517.91mm)	20.27" (514.86mm)	0.12" (3.05mm)	72nd Wettest	Wettest since: 1961	1926
Jun–Dec 1966 7-Month	22.74" (577.60mm)	24.52" (622.81mm)	-1.78" (-45.21mm)	37th Driest	Driest since: 1964	1953
Jun–Dec 1966 7-Month	22.74" (577.60mm)	24.52" (622.81mm)	-1.78" (-45.21mm)	92nd Wettest	Wettest since: 1965	2015
May–Dec 1966 8-Month	26.52" (673.61mm)	28.79" (731.27mm)	-2.27" (-57.66mm)	37th Driest	Driest since: 1965	1953
May–Dec 1966 8-Month	26.52" (673.61mm)	28.79" (731.27mm)	-2.27" (-57.66mm)	92nd Wettest	Wettest since: 1961	2015
Apr–Dec 1966 9-Month	31.52" (800.61mm)	32.70" (830.58mm)	-1.18" (-29.97mm)	43rd Driest	Driest since: 1965	1930
Apr–Dec 1966 9-Month	31.52" (800.61mm)	32.70" (830.58mm)	-1.18" (-29.97mm)	86th Wettest	Wettest since: 1961	2015
Mar–Dec 1966 10-Month	33.15" (842.01mm)	36.51" (927.35mm)	-3.36" (-85.34mm)	30th Driest	Driest since: 1963	1930
Mar–Dec 1966 10-Month	33.15" (842.01mm)	36.51" (927.35mm)	-3.36" (-85.34mm)	99th Wettest	Wettest since: 1965	2011
Feb–Dec 1966 11-Month	36.26" (921.00mm)	39.19" (995.43mm)	-2.93" (-74.43mm)	33rd Driest	Driest since: 1963	1930
	36.26" (921.00mm)	39.19" (995.43mm)	-2.93" (-74.43mm)	96th Wettest	Wettest since: 1965	2011
	Ties: 1947
Jan–Dec 1966 12-Month	39.07" (992.38mm)	42.23" (1,072.64mm)	-3.16" (-80.26mm)	26th Driest	Driest since: 1963	1930
Jan–Dec 1966 12-Month	39.07" (992.38mm)	42.23" (1,072.64mm)	-3.16" (-80.26mm)	103rd Wettest	Wettest since: 1965	2019
Jul 1965–Dec 1966 18-Month	58.72" (1,491.49mm)	62.51" (1,587.75mm)	-3.79" (-96.26mm)	25th Driest	Driest since: 1964	1953
Jul 1965–Dec 1966 18-Month	58.72" (1,491.49mm)	62.51" (1,587.75mm)	-3.79" (-96.26mm)	103rd Wettest	Wettest since: 1965	2019
Jan 1965–Dec 1966 24-Month	80.43" (2,042.92mm)	84.45" (2,145.03mm)	-4.02" (-102.11mm)	28th Driest	Driest since: 1964	1953
Jan 1965–Dec 1966 24-Month	80.43" (2,042.92mm)	84.45" (2,145.03mm)	-4.02" (-102.11mm)	100th Wettest	Wettest since: 1965	2019
Jan 1964–Dec 1966 36-Month	121.11" (3,076.19mm)	126.69" (3,217.93mm)	-5.58" (-141.74mm)	25th Driest	Driest since: 1965	1954
Jan 1964–Dec 1966 36-Month	121.11" (3,076.19mm)	126.69" (3,217.93mm)	-5.58" (-141.74mm)	102nd Wettest	Wettest since: 1962	2020
Jan 1963–Dec 1966 48-Month	152.72" (3,879.09mm)	168.95" (4,291.33mm)	-16.23" (-412.24mm)	3rd Driest	Driest since: 1956	1955
Jan 1963–Dec 1966 48-Month	152.72" (3,879.09mm)	168.95" (4,291.33mm)	-16.23" (-412.24mm)	123rd Wettest	Wettest since: 1965	2021
Jan 1962–Dec 1966 60-Month	192.66" (4,893.56mm)	211.20" (5,364.48mm)	-18.54" (-470.92mm)	3rd Driest	Driest since: 1956	1956
Jan 1962–Dec 1966 60-Month	192.66" (4,893.56mm)	211.20" (5,364.48mm)	-18.54" (-470.92mm)	122nd Wettest	Wettest since: 1965	2021

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Regional Rankings, published May 2023, retrieved on May 29, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/regional/rankings