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.
--
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

"W. Wat son" wrote in message
nk.net...
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.
--

The information is available. For what city do you need the data?

TQ wrote:

"W. Wat son" wrote in message
nk.net...

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.
--


The information is available. For what city do you need the data?


Area code 95959, Nevada City (or Grass Valley), CA.

--
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

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

"Jim" wrote in message
news:1109033939.5d8bb90140b42bac8a58b30fb772ad0d@m eganetnews2...
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

His location is btwn San Fran and Reno and Reno/s Climate Reports do not
report average sky cover. The local NWS office might have cooperative
observer data closer to Nevada City.

You can also see if there is a sponsored ClearSky Clock in your area. If so
you can get past forecasted data for cloud cover, seeing transparency, etc.
If have found these forecast clocks to be very accurate. Here is the one
for my observatory.
http://cleardarksky.com/clmt/c/JATObPAct.html

-JATO
http://jatobservatory.org



On Mon, 21 Feb 2005 18:58:57 -0600, 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

I think I read about this facility in a Sky&Telescope mag about 2 years
ago. How do I subscribe? Maybe the S&T site has some details.

JATO jato wrote:

You can also see if there is a sponsored ClearSky Clock in your area. If so
you can get past forecasted data for cloud cover, seeing transparency, etc.
If have found these forecast clocks to be very accurate. Here is the one
for my observatory.
http://cleardarksky.com/clmt/c/JATObPAct.html

-JATO
http://jatobservatory.org



On Mon, 21 Feb 2005 18:58:57 -0600, Jim wrote:
....
--
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

Go to the bottom of the page and click on Clocks Home then read the page.
To get the feature I mentioned the clock you use must be a sponsored clock.
-JATO

On Tue, 22 Feb 2005 03:54:40 GMT, "What Sun? Calif."
wrote:

I think I read about this facility in a Sky&Telescope mag about 2 years
ago. How do I subscribe? Maybe the S&T site has some details.

JATO jato wrote:

You can also see if there is a sponsored ClearSky Clock in your area. If so
you can get past forecasted data for cloud cover, seeing transparency, etc.
If have found these forecast clocks to be very accurate. Here is the one
for my observatory.
http://cleardarksky.com/clmt/c/JATObPAct.html

-JATO
http://jatobservatory.org



On Mon, 21 Feb 2005 18:58:57 -0600, Jim wrote:
...

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