Category Archives: Washington

2011 precipitation at SeaTac Airport

December 2011 precipitation at SeaTac Airport of 2.24 inches was 38% of the 1948-2010 63-year mean of 5.86 inches. It was the 4th driest in the past 64 years. The 3 drier Decembers were 1976 with 1.86 inches, 1978 with … Continue reading

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May-June 2011 temperatures across the West

The Eagle AK coop site (1949-present) near the Yukon River has never reported a temperature below 31 F this late in June.  Yet today, the nearby Eagle AK ASOS site observed a minimum temperature of 28 F, the 1st subfreezing … Continue reading

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Cold April/May 2011 in Seattle Washington

With barely more than a week to go in April/May 2011 here is the tally of days below, near, and above normal in Seattle (KSEA): 45 – below normal 7 – near normal (-1 to +1 deg F departure) 0 … Continue reading

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1.76 inches in Yakima WA today is a wet month

Yakima with 1.76 inches in the past 18 hours alone is wetter than any May since 1948 when 2.76 inches of rain fell.  The 2nd wettest May total was 2010 with 1.46 inches.  The total so far in 2011 is … Continue reading

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Stevens Pass snow melt-out climatology

As the Stevens Pass snowpack drops to 100 inches today (13 May 2011) for the first time since 9 March it is a good time to take a look at the climatology of snowpack melt out at Stevens Pass in … Continue reading

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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 … Continue reading

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Late Opening of North Cascades Highway

After first reaching 230 inches of snow back on 14 March 2011 the snow has refused to go away at the Mt Baker Ski Area.  Now nearly 2 months later on 12 May 2011 the snow depth stands at 234 … Continue reading

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