CET ANNUAL MEAN TEMP VS ANNUALSUNSHINE HOURS

The multiple sclerosis (MS) prevalence rates in five districts of Bulgaria were compared with some geographic and climatic factors. In Bulgaria the latitude seems not to be a factor influencing the MS distribution. As to the climatic factors, a negative correlation was obtained between MS prevalence and mean annual sunshine hours as well as between MS prevalence and mean annual temperature. When comparing MS prevalence and mean annual precipitation, the correlation was positive.

Map showing annual sunshine hours for the UK

Where I grabbed a couple of graphs of annual sunshine hours and annual max temp for the UK:

CET ANNUAL MEAN TEMP VS ANNUALSUNSHINE HOURS

Reefton is a West Coast Town, so when it rains it really rains. The West Coast is known for this, but what is often overlooked is that West Coast rain regularly comes in a deluge and there can be long, fine periods at other times. This is shown statistically by a substantial amount of annual sunshine hours. Reefton in particular is known for long, fine spells during the summer months.

Grimsetter Annual Sunshine Hours 1950-2000

The annual average temperature of Anhui is between 14°C to 17°C centigrade. The average annual sunshine hours are 1,800-2,500. The average frost-free period is 200 to 250 days. The annual average rainfalls are 800 to 1,800 millimeters.

Here is a weather chart showing the annual sunshine hours for Majorca, Berlin and London
Mean annual sunshine hours.

Annual Sunshine Hours of The World

The gradient in mean annual temperature runs north to south. Mean annual temperatures are 16-18°C in the northern North Island and 8-10°C in the south of the South Island. Mean annual temperatures also decrease by about 2°C for every 300 m increase in altitude. Mean annual sunshine hours (1971-2000) are between 900 and 2600 hours/yr. The lowest sunshine hours (900 to 1 400 hr/yr) occur in Fiordland and parts of the west coast of the South Island. The highest (2 200 to 2 600 hr/yr) occur in the northwest of the North Island and the top of the South Island.

Does anyone know of a website that has a map of average annual sunshine hours that covers all Europe?

Annual sunshine hours map Europe -

Looking at the bar graph of average annual sunshine hours for various tilt angles, you can see that a good compromise is to tilt your array somewhere between 37 and 60 degrees. These angles receive almost as much sunshine as changing your array every month to set it for the optimum angle for that time of year.

I grabbed a couple of graphs of annual sunshine hours and annual max ..

Annual Bright Sunshine Hours – Saskatoon, Sask., Canada