Yakima, Hanford, and The Dalles all reported a high temperature of 90 degrees today.  At Yakima and Hanford this is the earliest date to reach 90 degrees.  The previous record for both stations had been 24 April 1977 when Hanford reached 94 degrees and Yakima reached 92 degrees.  Earlier that same month The Dalles reached 90 on 7 April 1977, a whopping 16 days earlier in the spring than this year.  Last year Hanford did not reach 90 until nearly 2 months later on 22 June 2011.  The mean date to first reach 90 is 22 May at Hanford.  For further information concerning annual first and last 90 degree readings at Hanford, go here. 

RECORD EVENT REPORT
NATIONAL WEATHER SERVICE PENDLETON OR
549 PM PDT MON APR 23 2012
...NEW DAILY RECORD HIGH TEMPERATURES FOR APRIL 23ST...
STATION                  PREVIOUS        NEW        RECORDS
                         RECORD/YEAR     RECORD     BEGAN
THE DALLES, OR           89 / 1977       90         1929 
YAKIMA, WA               86 / 1977       90         1909 
REDMOND, OR              85 / 1977       86         1941