Sunnyside WA, located in the Yakima River valley and with records extending back to 1894, experienced their coldest April on record. 2011’s mean April temperature came in -14.3 degrees colder than 1934!
1. 2011 45.1 2. 1955 46.7 3. 1967 47.4 MEAN 52.3 108. 1994 56.7 109. 1926 57.6 110. 1934 59.4
Here is a picture of the Sunnyside coop site from Sept 2006:
http://www.atmos.washington.edu/marka/sunnyside.coop.jpg
More information about April 2011 from NWS Pendleton:
http://www.wrh.noaa.gov/pdt/pcpn/mir.php?month=4&year=2011
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