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Apples to apples

Posted at 7:04 AM on February 12, 2009 by Craig Edwards (2 Comments)

In an effort to expand the data base of recorded weather in the Twin Cities and and at many other locations in the US, the National Weather Service methodically developed a process to incorporate pioneer weather records. We believe we are comparing apples to apples, but perhaps a gala to a honey crisp.

Last year, this new data, validated through the State Climate Office, was threaded into the tempeature records for the Twin Cities. Modern day records began in 1890. Observations commenced daily af Fort Snelling, in very close proximity to the International Airport, where official readings are measured, in 1820.

Story behind the pioneer observations from the State Climate Office.

In last year's Freshwater Society weather guide, they listed the record low for this date in Minneapolis/St. Paul as 21 below set in 1899. The new, threaded data, establishes 30 below as the record set in 1875.

All record lows for this week extend back more than 100 years for the Twin Cities.

CE
naturesmessenger

Comments (2)

Don't forget that the speaker at the February meeting of the Twin Cities chapter of the AMS will be Pete Boulay from the state climatology office, and he wiill talk bout the ThreadEx project.

Posted by Chris B. Critter | February 12, 2009 9:16 PM

The next Twin Cities AMS meeting,open to the public, will be held at the U of M St. Paul Campus on the 19th. more information on the Twin Cities AMS Chapter can be found at twincitiesams.org
CE

Posted by Craig | February 13, 2009 10:50 AM

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