Olympia Regional Airport, closest official weather service station to Yelm (16 miles), broke the former high temperature record for any February 16th. Today’s high was 60 (15.5 C).
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The National Weather Service also reported record high temperatures nearby of 59 at Sea-Tac Airport, 62 at Hoquiam, and 62 at Vancouver in Washington and 61 in Portland, 62 at Hillsboro, Oregon, and 66 at Salem in Oregon.

High temperature records were recently noted at Olympia Regional Airport for January 26, February 12 and 13, as noted here.