Lowest DAYTIME temp records [RE-wrenches]

[Darryl Thayer]

HI
a Prof. John Duffy Uof Texas (I think) used to publish
a "Temperature Bins data" for many cities this was
connected with ASHRAE In his data was the 90%.
95%,98%, 99% and I believe the record low for an area.
 The percentages were where for example 90% of the
days were warmer than this temperature.  

--- Joel Davidson <joeldavidson at earthlink.net> wrote:

> www.weather.com only lists record high and low
> temperatures. NEC 690.7(A)
> specifies the lowest expected ambient temperature
> which implies sunlight on
> the array to cause voltage. Except in rare
> situations record low
> temperature occurs at night or before sunrise when
> no voltage is present.
> 
> Does anyone know a source for the lowest expected
> ambient temperature when
> sunlight will be on the solar array?
> 
> Joel Davidson
> 
> Original Message:
> -----------------
> From: William Miller wrmiller at charter.net
> Date: Thu, 02 Feb 2006 12:56:03 -0800
> To: RE-wrenches at topica.com
> Subject: RE: Lowest DAYTIME temp records
> [RE-wrenches]
> 
> Randy:
> 
> Thanks for the link.  I've been in the same
> situation as Tump and never got 
> the answer that I believe he is now looking for. 
> For PV design, average 
> low temperatures are not really the data required. 
> We need record 
> lows.  The chart legend shows record lows but no
> values are displayed on 
> the chart.  Got any suggestions?
> 
> William
> 
> 
> At 12:26 PM 2/2/2006, you wrote:
> 
> >Hi Tump,
> >Here is a reference to temp info which has highs
> and lows. All you have
> >to do is change the city.  Good luck.
> >
>
>http://www.weather.com/activities/recreation/ski/weather/climo-monthly-g
>
>raph.html?locid=88011&from=month_bottomnav_undeclared
> >
> >Randy


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