Sunny Days in Wyoming Cities (Annual Averages)

• Cheyenne: 145–155 (sunniest: Jul–Aug)
• Casper: ~135 (sunniest: Jul)
• Cody: 175–180 (sunniest: Jul; cloudiest: Dec–Jan)
• Gillette: ~130 (sunniest: Jul)
• Jackson Hole: 135–145 (sunniest: Jun–Jul)
• Laramie: ~145 (sunniest: Jul–Aug)

Figures are NOAA averages; actual counts vary yearly. Mountain microclimates differ.