Jackson Hole Weather

Average Temperatures in Jackson Hole (Farenheit)

December: Average High 28 / Average Low 6
January: Average High 27 / Average Low 5
February: Average High 32 / Average Low 8
March: Average High 41 / Average Low 16

April: Average High 52 / Average Low 24
May: Average High 63 / Average Low 31
June: Average High 72 / Average Low 37

July: Average High 81 / Average Low 40
August: Average High 80 / Average Low 38

September: Average High 71 / Average Low 31
October: Average High 58 / Average Low 23
November: Average High 39 / Average Low 16

Seasonal Weather in Jackson Hole, Wyoming

Summer (July and August) Warm days and cool nights prevail, with afternoon thundershowers common.  The snow level gradually retreats, with divides between the mountain canyons free of snow by August.  As the valley wildflowers fade, canyon and alpine wildflowers peak.

Fall (September - November) Sunny days and cold nights alternate with rain and snowstorms.  Aspen and cottonwoods change color in late September and early October.  As snow becomes persistent by late fall, elk move to wintering areas at lower elevations.

Spring (late April - June) Mild days and cold nights interspersed with rain and occasional snow.  Valley lakes usually thaw by late May depending on snow-pack with snow levels remaining just above the valley elevations until mid-June.  Valley wildflowers begin blooming as the snow melts peaking in June and July.

Winter (late November - April) Snow blankets the mountains and the valley, with accumulations of ten feet common in the mountains and two to five feet in the valley.  Between storms, sunny days and frigid nights provide perfect conditions for winter photography, wildlife viewing, snowshoeing, as well as downhill and cross-country skiing.

Other weather resources:
mountainweather.com
jacksonhole.com
NOAA