OKLAHOMA CITY (AP) — A total of 31 tornadoes last month was a record-high for October in Oklahoma dating to 1950, according to the National Weather Service.

The previous high for October, the fifth most active month for tornadoes, was 27 in 1998, according to weather service records. Those records show that March-June are the four most active months for twisters in Oklahoma.

"It's unusual, not quite as unusual as people might think" to see October tornadoes, according to weather service meteorologist Phil Ware. "It's really not that different than in the springtime. You're getting clashes of a...