Category Archives: Washington

Washington September 2017 climate summary

Posted on 1 October 2017 by

Here is the September 2017 climate summary for 24 sites across Washington.  The month averaged +2.2 F above normal across Washington with Yakima again being a warm outlier.  15 of 24 sites reported below normal precipitation.         REGION: … Continue reading →

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Olympia +0.08 F Warming over past 25 Years

Posted on 26 September 2017 by

After a warm dry summer this is a good time to take a look at the global warming scorecard for our region. Using Olympia Airport as perhaps our best measure of temperature in the Puget Sound region, we find the … Continue reading →

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Climate of Olympia WA: number of hot days

Posted on 24 June 2016 by

For Olympia Airport, (1941-2015), I have compiled the number of “hot” days (>= 89 F) per decade.  The threshold temperature for a hot day was set to make an annual mean frequency of about 7 days per year. 1940s*   … Continue reading →

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Seattle Precipitation – Winter 2015-16

Posted on 11 March 2016 by

Seattle Sand Point (SEW) has seen measurable precipitation on each of the past 14 days (26 Feb – 10 Mar 2016).  This month, with 3.20 inches so far, is likely to be the 6th consecutive month with above normal precipitation … Continue reading →

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From 106 F to 28 F in eastern Washington in 5 days

Posted on 13 June 2015 by

Eastern Washington has been a land of temperature extremes this past week.  Earlier this week the temperature reached 106 F at Benton City on 8 June 2015 and several sites reached 105 F, including the Hanford climate station.  Now just … Continue reading →

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Whidbey Island Naval Air Station warm anomaly

Posted on 22 March 2015 by

In western Washington we have an ASOS site at Whidbey Island Naval Air Station (KNUW) whose temperature often runs considerably higher than surrounding sites. For example, the high temperature today about 2 miles south of KNUW ASOS on Whidbey Island was 52 … Continue reading →

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Record warm February 2015 at Hanford WA

Posted on 4 March 2015 by

The Hanford climate station in eastern Washington reports February 2015 to have been their warmest February in the 71 year historical record from 1945 – 2015.  The mean of 45.3 F exceeded the previous record in February 1958 by +0.8 … Continue reading →

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Warm February 2015 in the Pacific Northwest

Posted on 2 March 2015 by

Final results are in…at the Olympia Airport over the past 74 years since 1942 this past month was the 3rd warmest February in the historical record: 1) 1958   47.0 F 2) 1963   46.1 3) 2015   46.0   … Continue reading →

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Wenatchee WA reaches the freezing mark

Posted on 29 January 2013 by

They are celebrating in Wenatchee WA.  For the first time in nearly 3 weeks the temperature has risen above freezing with 33 F reported at 11 AM 29 Jan 2013.  The max temperature reached 37 F back on 10 Jan … Continue reading →

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Warm early November 2012 in Walla Walla WA

Posted on 6 November 2012 by

The temperature reached 71 F at Walla Walla Airport on both 4 and 5 November 2012. While well above normal (54 F) it doesn’t come close to the November record high temperature of 80 F on 4 November 1975.

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