Annual Ohio rainfall, severe weather and climate data

Driest location ranked by lowest annual average precipitation: Middlebourne, west-central Ohio, 30.44"

Wettest location ranked by highest annual average precipitation: Cincinnati, southwestern Ohio, 47.54"

Snowiest location ranked by highest annual average snowfall: Chardon, northeastern Ohio, 97.0"

State precipitation record for 24 hours - Lockington Dam, western Ohio, 8/7-8/1995, 10.75"

State precipitation record for 1 year - Little Mountain, northeast Ohio, 1870, 70.82"

State snowfall record for 24 hours - Kings Mills, southwestern Ohio, 11/22-23/2004, 26.5""

State snow record for 1 season - Chardon, northeastern Ohio, 1959-1960, 161.5"

Ohio is one of the cloudiest places on Earth during the winter months. The cloudiest month is December when 
sunshine is received only about 30% of the time, with only three to six clear days. This compares to the 
well-known cloudy city of Seattle, Washington which also experiences only three to five clear days during December

Ohio winter snowfall ranges from under 16 inches in the southern counties to around 35 inches at Toledo in the 
northwest, to over 90 inches in the extreme northeastern counties where lake effect snowfall dominates

Ohio temperature averages and extremes, Columbus climate extremes/averages, precipitation and temperature
data for all U.S. states and interesting Top 10 U.S. climate extremes

City	Avg Annual Precip	Avg Annual Snow	Avg # days of Precip	Avg # thunderstorm days	Avg # hail days	Avg # severe thunderstorm watches per year	Avg # tornado watches per year	# of tornadoes reported in county, 1960-2010
Akron	38.47	47.1	155	38	2	1	11	11
Cleveland	38.71	58.6	156	34	1	1	10	11
Columbus	38.52	28.1	137	40	2	3	15	24
Dayton	39.58	27.5	132	38	1	4	13	8
Mansfield	43.24	43.6	143	35	1	2	12	26
Toledo	33.21	37.1	136	37	1	3	12	7
Youngstown	38.02	56.8	160	33	1	1	11	12
Ohio Annual Precipitation Average - 39.16", 28th wettest in the U.S. Ohio Tornado Average - 14.7 per year - 21st most in the U.S.