Weather
No season is out of the question, but our preferred times to visit Tucson are March, April, October and November, when the temperatures are at their most pleasant (highs average 80 F/27 C in April and 84 F/29 C in October). Winter (November-March) sees an average high of 65 F/18 C and an average low of 38 F/4 C. Summers have an average high of 98 F/37 C and an average low of 70 F/21 C. Low humidity and universal air-conditioning help make the high temperatures more bearable.
Renowned for its sunny weather, Tucson's average yearly rainfall is about 11 in/28 cm. Late July to mid-August and late November to mid-December, Tucson experiences its rainy season. The summer thunderstorms are known as monsoons. Because it's set in a desert valley, annual snowfall is low in Tucson proper, although there's enough for skiing in the nearby mountains.