Beth, You will find that on windy days, your temperatures may be close to nearby official observations, but on calm days you may vary by over 10 degrees, especially on cold winter nights. On cold, calm, clear nights, I've noted over 1 degree Fahrenheit per foot difference in elevation between my front yard and back yard. The NWS uses a wooden "cotton region" shelter setup to meet certain requirements. The shelter reduces thermal radiation to space so that the official temperatures are not as low as an outdoor thermometer out in the open away from buildings. I've wondered how this standardization affects long term weather observations the are used to support short-term climate change discussions. Often, weather stations that were rural have had cities grow up around them, their locations moved, or changed the mounting to the shelter, and sometimes correction factors are applied to historical data to attempt to provide "synchronization" with the old setup...
Good article on extreme lows in the Midwest: http://ams.allenpress.com/archive/1520-0477/78/1/pdf/i1520-0477-78-1-35.pdf Paul On Mon, Dec 21, 2009 at 11:26 AM, Beth Koebel <[email protected]> wrote: > Bob, > I think that NOAA is better at attaining the correct temperture readings > verses the American Forestry does at attaining correct tree measurements. > > On the other hand, it is so much fun gathering the infomation yourself and > then playing with the data. I am hoping to have a personal weather station > in my yard by the end of next year. > Beth > > Sent from my iPhone > > On Dec 21, 2009, at 11:11, [email protected] wrote: > > Beth, > > Weather extremes have always interested me. One reason its that they tell > me where I might not want to go, or live. As a statistics nut, I'm always > looking for the extremes and from them tend to fill in the means. January is > the traditional coldest month. So it is the one I've chosen to closely > monitor. Why don't I just wait until the end of the month and look at > summary data from NOAA? Good question. > > Bob > > > > ----- Original Message ----- > From: "Beth Koebel" <[email protected]> > To: <[email protected]>[email protected] > Sent: Monday, December 21, 2009 12:02:02 PM GMT -05:00 US/Canada Eastern > Subject: Re: [ENTS] Nation's Low Temperture > > Bob, > Thank you for the info. A drinking buddy of mind thought that Juneo, Alaska > was cold. I tried to tell her about the Japaness Current (aka the Gulf > Stream of the Pacific). But alas, she wouldn't believe me. > Beth > > Sent from my iPhone > > On Dec 21, 2009, at 10:32, <[email protected]>[email protected] wrote: > > Beth, > > I thought you'd never ask. I don't know the answer to that question, but > here are some temperatures from traditional cold spots and some of my > favored haunts around the U.S. (lower 48. Don's neck of the woods doesn't > count.). I'm going to confer with Ernie about the traditional cold spots and > track them in earnest starting in January. > > Bob > > > Station State Current temp Florence MA 29 Charlemont MA 22 Shelburne > Falls MA 25 Chester MA 24 Thetford VT 21 Berlin NH 12 Claremont NH 24 > Mount > Washington NH 7 Caribou ME 19 Embarrass MN 20 Tower MN 20 Ely MN 18 > Stanley ID 31 Pocatello ID 36 West Yellowstone MT 30 Pinedale WY 19 Big > Piney WY 15 Jackson WY 35 Riverton WY 27 Alamosa CO 14 Maybell CO 3 > Fraser CO 26 Durango CO 27 Hunter NY 24 Lake Placid NY 32 Devils Lake > ND 4 Elko NV 12 Maybell CO 3 > > > > > ----- Original Message ----- > From: "Beth" < <[email protected]>[email protected]> > To: "ENTSTrees" < <[email protected]>[email protected]> > Sent: Monday, December 21, 2009 9:48:56 AM GMT -05:00 US/Canada Eastern > Subject: [ENTS] Nation's Low Temperture > > Bob, Lee, Erinie, ENTS, > what was the low temperture for the US this morning? > Beth > > -- > Eastern Native Tree Society <http://www.nativetreesociety.org> > http://www.nativetreesociety.org > Send email to <[email protected]>[email protected] > Visit this group at <http://groups.google.com/group/entstrees?hl=en> > http://groups.google.com/group/entstrees?hl=en > To unsubscribe send email to > <[email protected]><[email protected]> > [email protected] > > -- > Eastern Native Tree Society > <http://www.nativetreesociety.org><http://www.nativetreesociety.org> > http://www.nativetreesociety.org > Send email to <[email protected]>[email protected] > Visit this group at > <http://groups.google.com/group/entstrees?hl=en><http://groups.google.com/group/entstrees?hl=en> > http://groups.google.com/group/entstrees?hl=en > To unsubscribe send email to > <[email protected]><[email protected]> > [email protected] > > > -- > Eastern Native Tree Society <http://www.nativetreesociety.org> > http://www.nativetreesociety.org > Send email to [email protected] > Visit this group at <http://groups.google.com/group/entstrees?hl=en> > http://groups.google.com/group/entstrees?hl=en > To unsubscribe send email to <[email protected]> > [email protected] > > -- > Eastern Native Tree Society <http://www.nativetreesociety.org> > http://www.nativetreesociety.org > Send email to [email protected] > Visit this group at <http://groups.google.com/group/entstrees?hl=en> > http://groups.google.com/group/entstrees?hl=en > To unsubscribe send email to <[email protected]> > [email protected] > > > -- > Eastern Native Tree Society http://www.nativetreesociety.org > Send email to [email protected] > Visit this group at http://groups.google.com/group/entstrees?hl=en > To unsubscribe send email to > [email protected]<entstrees%[email protected]> > -- Eastern Native Tree Society http://www.nativetreesociety.org Send email to [email protected] Visit this group at http://groups.google.com/group/entstrees?hl=en To unsubscribe send email to [email protected]
