Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
The Windsor Weather Station uses the 1981-2010 period for sunhours.
The Usa stopped with the sunhour measurements as we know. So these Sun hour measurements are from 1961-1990.
I think If America would still measure sunhours, Detroit would probably have over 2500 sunhours for the 1981-2010 period.(By the American sunhour measurement method)
But i don't think that there would be such a big difference between these two airport, tbh i think these two get about the same amount of sunhours year round.
I calculated all these averages by using the "AREA OF BLUE SKY" data in each link.
The sunshine hours, given in these previous links, were taken from Web popular data, and thus, they aren't reliable. I'm a little dubious about the cloud cover figures for these three US city, I think these averages are somewhat very high, even too high for Las Vegas, Phoenix and Yuma. I think they are rather between around 2 tenths for LV and PHX, and near 1.3 or 1.4 tenth for YMA.
The lowest cloud cover figures for the Sahara Desert may not be these of Aswan. There are even clearer spots, such as the oases of Dakhla and Kharga, also in Upper Egypt, which lie in the heart of the Libyan (Eastern) Desert. Wadi Halfa, a town along the the border of Egypt and Sudan, seems to be slightly clearer than Aswan, too.
Last edited by Special_Finder; 07-28-2015 at 06:40 AM..
The Windsor Weather Station uses the 1981-2010 period for sunhours.
The Usa stopped with the sunhour measurements as we know. So these Sun hour measurements are from 1961-1990.
I think If America would still measure sunhours, Detroit would probably have over 2500 sunhours for the 1981-2010 period.(By the American sunhour measurement method)
Odds are that Detroit has not seen a change in sunshine hours from earlier 30 year periods. They may even be more cloudier as it's been wetter these past 30 years
Chicago hasn't. Only thing that has changed is seasonal sunshine. The percent of total sunshine annually is the same
The monsoon is just as powerful over southeastern California as it is in Yuma, so Yuma actually BEATS southeastern California in sunshine hours.
And southeastern California is no further from the Gulf of California than Yuma whatsoever.
Not true....not true.... just look at a map.... yuma is on the southern border about 80 miles while the coachella valley is around 250 miles. And look at rainfall data. Palm springs averages 0 days of rain on june, .6 on July, .9 august, .7 on sept. While yuma averages .2 on june, .9 on july, 2.3 on august, and 1.2 on september. The monsoon influence is much stronger in yuma than desert california. Only on powerful monsson events California gets affected while arizona sees them more frequently. It is clear the further east you go the more monsoon influence. Just look at phoenix and the monsoon actually gets some influence on day to dday weather in the months of july and august.
There are actually only three areas in the world which bask in more than 4,000 h of bright sunshine a year (over 11 h a day) according to the "World Sunshine Chart", prepared by the U.S. Department of Commerce's Weather Bureau. The report says the Sahara Desert, the coast of northern Chile as well as parts of deserts in California and in Arizona claim to receive the most sunlight on Earth. I read this on some Google Books : Desert Forest Golf Club State Solar Energy Legislation of 1977
There is another similar book that says there are only two areas that average over 4,000 h of bright sunshine yearly, a small zone from Phoenix to Yuma in Arizona plus a few miles into California and a large portion of the Sahara Desert west of the Red Sea : Solar Thermal Energy Utilization
However, Palm Springs seems to be sunnier than Yuma because the Coachella Valley may not be very affected by summer monsoon clouds unlike Arizona. Sunshine figures must be somewhat close for both locations. I'm still wondering if there is really an area in the Desert Southwest that breaks the 4,000-h mark.
Last edited by Special_Finder; 08-03-2015 at 09:54 AM..
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.
Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
