The Oklahoma Weather Timeline provides a decade-by-decade listing of interesting or disastrous events that have occurred in Oklahoma's weather history. For more detailed daily summaries (since 2003) please view the Oklahoma monthly climate summaries.
1950 May 11-12: Flood of record on Illinois River near Tahlequah. The new Fort Gibson reservoir filled one year ahead of predictions.
1950-1956: Driest 7-year period of century with an average annual statewide precipitation of 28.51 inches.
1950: Wettest July of century, statewide-averaged precipitation of 9.26 inches.
1952-1956: Driest 5-year period of century with an annual average statewide precipitation of 25.81 inches.
1952: Tied for driest October of century, statewide-averaged precipitation of 0.14 inch.
1953: Warmest June of century, statewide averaged temperature of 85.1 degrees.
1954-1956: Driest 3-year period of century with an annual average statewide precipitation of 24.50 inches.
1954: Warmest February of century, statewide-averaged temperature of 51.8 degrees.
1954: Hottest July of century with a statewide-averaged temperature of 88.6 degrees.
1954: Warmest year of century, statewide-averaged annual temperature of 63.7 degrees.
1955 May 25: F5 tornado hits Blackwell, killing 20.
1956 July: 7 tornadoes, record for month.
1956 September: Driest September of century, statewide-averaged precipitation of 0.27 inch.
1956: Regnier annual precipitation of 6.53 inches is least ever for any station in state.
1957 April: 40 tornadoes, record for month.
1957 May 16-21: Heavy rains throughout. Major flooding on Cimarron, Arkansas, Canadian. $20M losses to agriculture alone. Lake Texoma emergency spillway opened for first time. Floods marked the end of persistent drought that began in 1952.
1957: Wettest May of century, statewide-averaged precipitation of 10.68 inches.
1957: Annual precipitation at Kiamichi Tower, 84.47 inches, greatest of century at any reporting station.
1957: Wettest year of Century with a statewide-averaged precipitation of 48.21 inches.
1957: 107 tornadoes, second greatest number in any year, 1950-1999.
1958 November: 12 tornadoes record for month.
1959 October 2-5: Severe flooding on Cimarron and Arkansas.