Historical Weather Data
- WIYN Weather Statistcs (Open vs. Closed due to weather) from 1999 to 2006.
- Probablility of Clear Skies
R.G Giovanelli, Feb. 1979
- Statistics of Weather Data
and Telescope Usage at Kitt Peak National Observatory ... David L. Crawford, 1964 to 1981
- Arizona Climate Summaries - Historical
Updated on June 21, 2021, 6:48 am