 Individual high temperature records have fallen, but National Weather Service meteorologist Camden Plekett says we have days to go before the heat wave itself sets a record. As of Tuesday, the heat wave lasted 12 days in Pendleton, 11 days in Walla Walla, and 13 days in Hermiston. The record length for temperatures at 95 degrees or above are 23 days in 1911 for Pendleton, 22 days in 1977 for Walla Walla, and 25 days in 2021 for Hermiston.