Description - Information courtesy of Harvard UniversityThe Fred Lawrence Whipple Observatory (FLWO) is the largest field installation of the Smithsonian Institution Astrophysical Observatory (SAO) outside Cambridge, MA. Since October 1968, the FLWO has been used as the site for experiments requiring extremely dark skies, dry climate, and good "optical seeing."
- Visitor Center at the base of Mt. Hopkins. Telescopes.
Recreation - Educational facility.
Climate - Cold air masses from Canada sometimes penetrate into the state, bringing temperatures well below zero in the high plateau and mountainous regions of central and northern Arizona. The lowest readings can dip to 35 degrees F below zero. High temperatures are common throughout the summer months at the lower elevations. Temperatures over 125 degrees F have been observed in the desert area. Great extremes occur between day and night temperatures throughout Arizona. The daily range between maximum and minimum temperatures sometimes runs as much as 50 to 60 degrees F during the drier portions of the year. During winter months, daytime temperatures may average 70 degrees F, with night temperatures often falling to freezing of slightly below in the lower desert valleys. In the summer the pine-clad forests in the central part of the state may have afternoon temperatures of 80 degrees F, while night temperatures drop to 35 or 40 degrees F.
Located near Amado, Arizona on Mount Hopkins