Jim wrote:

On Sun, 20 Feb 2005 11:43:58 GMT, "W. Wat son"
wrote:


Is there a source that will tell me how many clear days a particular region
(city) has had over some period of time? In particular, I'd like to know
how many clear (reasonably cloudless) days we've had since Oct. 1, 2004.



Try

http://www.wrh.noaa.gov/climate/index.php?wfo=sto

Select "Monthly Weather Summary CLM" Sacremento

and select each of the months that you want data for.

CLIMATE REPORT
NATIONAL WEATHER SERVICE SACRAMENTO, CA
952 AM PST TUE FEB 1 2005

...................................
snip
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.80
NUMBER OF DAYS FAIR 3
NUMBER OF DAYS PC 8
NUMBER OF DAYS CLOUDY 20

AVERAGE RH (PERCENT) 87

snip

and total it all up.

Jim
Thanks. The reporting seems a bit erratic. For example, there is no Nov.
data, and in Dec. they don't report cloudy. That may because Sacramento is
the fog capital of California, and it's possible they can't see clouds!
Interesting source though.

--
Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA)
(121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet

Web Page: home.earthlink.net/~mtnviews