Olympia Regional Airport, closest official weather service station to Yelm (16 miles), broke the former high temperature record for any April 17th. Today’s high was 80 (26.7 C), breaking the former 78 degree high, set in 1952. Click here
Previous 80 degree high temperatures were noted here on April 7 and 8, including the earliest in-the-season 80 degree day on-record.
From KING 5 TV News:
“The temperature at Sea-Tac hit 80 degrees Sunday, shattering the record high for April 17.
The old record was 74, set in 1983.”