The % Sun number measures the percentage of time between sunrise and sunset that sunshine reaches the ground. Total Hours is the average number of sunny hours the city normally has in a year. Clear Days is the average number of days annually when cloud covers at most 30 percent of the sky during daylight hours. Hours of sunshine are the means calculated for 1961 to 1990.
Wikipedia: The MacDonnell Ranges of the Northern Territory, are a 644 km (400 mile) long mountain range located in the centre of Australia (23Â°42â²S 132Â°30â²E), and consist of parallel ridges running to the east and west of Alice Springs.
The range is a 644 km (400 mi) long series of mountains located in the centre of Australia, and consist of parallel ridges running to the east and west of Alice Springs. The mountain range contains many spectacular gaps and gorges as well as areas of aboriginal significance.he ranges were named after Sir Richard MacDonnell (the Governor of South Australia at the time) by John McDouall Stuart, whose 1860 expedition reached them in April of that year. The Horn Expedition investigated the ranges as part of the scientific expedition into central Australia.