The area to the north and west is predominantly grassland, both short and long grass prairie. Area lakes include Boomer Lake, Lake Carl Blackwell, Sanborn Lake and Lake McMurtry. Stillwater enjoys a moderate climate with an average annual temperature of 61 degrees and an average annual rainfall of 33 inches. The average mean temperature is 30 degrees in winter and 86 degrees in summer. Winters rarely see snowfall and it is not unusual to see several days in a row during January and February where daily highs reach the seventies.
Daily highs are only occasionally below freezing.
Summers are very hot and dry and air-conditioning is a must. It is not unusual to see extended periods with daily highs above 100 degrees F. Spring and fall account for fully half the year here, and they are both mild and pleasant. Major industries located in Stillwater include Mercury Marine , World Color Press, Armstrong Industries , Moore Business Forms , National-Standard , Frontier Engineering , Stillwater Medical Center and Stillwater Designs . Stillwater is also the home of world famous Eskimo Joe's . Stillwater is the home of Oklahoma State University , one of two Land Grant Universities in the state.