Annual Oklahoma rainfall

Driest location ranked by lowest annual average precipitation: Regnier, western Oklahoma, 15.62"

Wettest location ranked by highest annual average precipitation: Smithville, southeastern Oklahoma, 55.71"

Snowiest location ranked by highest annual average snowfall: Boise City, western Oklahoma, 31.6"

State precipitation record for 24 hours - Enid, north-central Oklahoma, 10/10-11/1973, 15.68"

State precipitation record for 1 year - Kiamichi Tower, southeastern Oklahoma, 1957, 84.47"

State snowfall record for 24 hours - Buffalo, northwestern Oklahoma, 2/21/1971, 23.0"

State snow record for 1 season - Beaver, northwestern Oklahoma, 1911-1912, 87.3"

On 9/4/1940, Hallett, Oklahoma in the north-central part of the state received the 15th highest recorded 
24-hour rainfall in U.S. history with a total of 24.00 inches.

Based on cities with 100,000 or more in population, Oklahoma City is the most tornado-prone city in the U.S.
Tulsa is the second most tornado-prone city in the United States.

During the month of May, an average of 20 tornadoes are sighted within the State

On May 3, 1999, a powerful tornado struck Oklahoma City, destroying 1,000 homes and causing over $1 billion 
in damages. A radar estimated wind speed of 318 mph was indicated and is the highest observation to date.

Oklahoma experiences the second highest total of tornadoes in the U.S. annually with an average of 8.2 
tornadoes per 10,000 square miles.. Florida is ranked first, with an average of 9.4 tornadoes.

Based on frequency and severity of hail, Tulsa, Oklahoma is the most hail-prone city in the U.S.

90% of Oklahoma receives more precipitation in May than during any other month

Current Oklahoma severe weather watches / warnings, satellite and radar observations

City	Avg Annual Precip	Avg Snow Annual	Avg # days of Precip	Avg # thunderstorm days	Avg # hail days
Oklahoma City	35.85	9.6	83	50	4
Tulsa	42.42	10.3	90	50	4
State Average - 36.55", 30th wettest in the U.S.