Intense Cold Continues at Eureka Canada

March came in like a polar bear up in Eureka on the Arctic coast of Canada with a max temperature of -55 F and a min temperature of -60 F on 1 March 2013, the 2nd consecutive day to reach -60 F.  Yesterday marked the 12th consecutive day with a min temperature of -50 F or below at Eureka with 8 of those 12 colder than -55 F.  The SLP reached an unusually high 1051 hPa yesterday as well.

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Wenatchee WA reaches the freezing mark

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 2013 before sinking below the freezing mark for the next 19 days.

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500 hPa: Alaska warmer than Arizona today

Up at the 500 hPa level, this morning finds a considerably warmer temperature at Yakutat AK, with -19 C, than at Tucson AZ where the temperature is -31 C.  The warmest 500 hPA temperature this month (Jan 2013) at Yakutat AK was -17 C on 13 Jan 2013 while Tucson has today matched the -31 C also reported on 14 Jan 2013 for the coldest this month.  Check out the 500 hPa chart here.

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Warm early November 2012 in Walla Walla WA

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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Early 90 degrees in eastern Washington: 23 April 2012

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

549 PM PDT MON APR 23 2012
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
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20 Years of Cooling at the Hanford climate station

Perhaps the most reliable rural climate record for the state of Washington is maintained 25 miles NW of Richland WA on the Hanford Reservation. Annual mean temperatures at the Hanford climate station have come full circle. At the beginning of the record the initial 5-yr mean was 53.0 F from 1945-49. 65 years later the most recent 5-yr mean temperature from 2007-2011 also stood at 53.0 F. The Hanford climate has cooled by -2.1 F over the past twenty years from a 5-yr mean of 55.1 F in 1990 to 53.0 today. Today’s (2007-2011) climate is cooler by -0.5 F than the 67-year period of record mean of 53.5 F. Annual temperatures over the past 5 years have been comparable to those measured in the 1970s. This link leads to a plot of the past 67 years of annual mean temperature at Hanford:

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Fairbanks AK, cold start to January 2012

12 of the first 18 days of January 2012 have seen low temperatures at or below -40 in Fairbanks AK. This includes -48 F on both 14 and 15 January, the coldest temperature in nearly 6 years. The temperature departure for the month so far (through 18 January) is nearly -20 F below normal at Fairbanks.

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