Wyoming

Climate

Wyoming is generally semiarid, with local desert conditions. Normal daily temperatures in Cheyenne range from 15°F (–9°C) to 38°F (3°C) in January, and 55°F (13°C) to 82°F (28°C) in July. The record low temperature, –66°F (–54°C), was set 9 February 1933 at Riverside; the record high, 114°F (46°C), 12 July 1900 at Basin. In Cheyenne, average annual precipitation (1971–2000) was 15.5 in (39.4 cm) a year, most of that falling between March and September; the snowfall in Cheyenne averages 56 in (142 cm) annually.