Summer
Dates: Memorial Day to Labor Day
Weather: Summer months are the best time to visit, but you need to be prepared for changes in the weather. If it does snow, it is usually brief and melts quickly. Such events are not frequent, but there are sudden and drastic shifts in weather conditions. Average July temperatures are a maximum of 84.9 °F and a minimum of 54.6 °F. Average high temperatures are in the 70s or 80s, lows in the upper 40s or low 50s. Some hot summers bring records of up to 100 °F.
Things to Do
Fall
Dates: Mid-September to October
Weather: Cody WY weather tends to be pleasant in autumn, but certainly temperatures drop, and sudden storms can roll in. The fall months bring a little decrease in the temperatures, but due to the dry climate, the extremely cold child of winter does not really set in until late November. The average temperatures for fall range from the 50s for highs to the 30s or 40s for lows.
Things to Do
Winter
Dates: November to March
Weather: Although the area actually gets about 300 days of sunshine each year, the winter and spring temperatures still make the area very cold. A cold winter can bring lows of 10 °F and the wind is almost a constant. So with the wind chill factor, it can feel like it is much lower. Average January temperatures in Cody are a maximum of 35.9 °F and a minimum of 12.8 °F. Annual snowfall averages about 39 inches. The winds can come from any direction and can be quite strong at 30 to 40 mph, lasting for several days.
Things to Do
Spring
Dates: April to Late May
Weather: Spring around Cody is beautiful, although the Cody weather can still get fairly chilly. Storms often occur, with May getting the highest precipitation. Snow is definitely possible. Average daytime temperatures during the spring range from lows of 40 degrees to highs in the 50s and 60s.
Things to Do
Cody, Wyoming averages 47 inches of snow throughout the winter. You'll find an inch or more of snow on the ground about 27 days each year in a fairly mild winter. Cody owes its semi-arid climate to being in the rain shadow of the mountains of Yellowstone, where between 150 and 300 inches accumulate each year. Most storms traveling west to east peter out before they reach Cody, meaning locals enjoy an average of 300 bluebird days a year.
Cody, Wyoming is a semi-arid climate in the precipitation shadow of the 8,500-foot Sylvan Pass. The northwest Wyoming town near Yellowstone only recieves an avarage of 47 inches of snowfall each year despite Sylvan Pass accumulating about 350 inches of snow. The average winter temperature in Cody is above freezing at 39 degrees Fahrenheit while the avearage lows stay in the double digits. Cody averages 300 sunny days a year. While Cody is sunny, the wind can be extreme, with gusty conditions exceeding 30 mph that can last for days.