Cold in Seattle – mid February to mid May 2011

Over the past 87 days (nearly 3 months) going back to 15 Feb 2011 SeaTac Airport has had 75 days of below normal temperature and only 12 days above normal.  In other words 86% of the days over the past 3 months have been colder than normal in Seattle.  Over this period the daily departures have ranged from -18 F below normal on 25 Feb 2011 to +4 above normal on 24 Mar 2011.  In May so far SeaTac is a perfect 12 for 12 in the below normal department.

Conversely, Douglas AZ in the far southeastern corner of Arizona has reported 66 days above normal and only 21 days below normal over the same time period (15 Feb – 12 May 2011).

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