Jackson Hole Weather by Month: What to Expect Year-Round in the Tetons

Planning a trip to Jackson Hole? Whether you’re chasing powder turns in January or wildflowers in July, knowing what to expect from the weather can make or break your adventure. Here’s a month-by-month breakdown of Jackson Hole’s ever-changing forecast, because in the Tetons, the only thing predictable is the need for layers.

Today’s Weather in Jackson, WY

JACKSON WEATHER

Average Jackson Hole Temps By Month

Month	Avg High °F	Avg Low °F	Precip (in)†	Avg Rel Humid	Avg Wind (mph)	Avg Snow Days‡
Jan	28	2	2.60	81 %	12	5.5
Feb	32	5	2.45	77 %	15	3.8
Mar	42	14	1.63	71 %	15	2.7
Apr	50	24	1.73	64 %	14	1.0
May	61	32	1.99	59 %	13	0.1
Jun	72	38	1.67	55 %	13	0
Jul	82	42	1.14	50 %	11	0
Aug	81	40	1.24	49 %	11	0
Sep	71	33	1.51	54 %	11	0
Oct	56	24	1.72	64 %	12	0.7
Nov	40	14	2.03	74 %	12	3.3
Dec	28	4	2.58	79 %	13	5.5

† Liquid-equivalent precipitation (rain + melted snow).
‡ Days ≥ 0.1 in snow at the Jackson Hole Airport climate site.

Sources: Temperature, precipitation, humidity, and wind data averages are from 1992 to 2023. Snow-day counts from Weatherspark.

Live View of Jackson Hole Weather

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How To Prepare for Jackson Hole Weather

• Deep-freeze winters (Dec – Feb)
  Highs hover below freezing while valley inversions trap cold air overnight. Expect 5-6 decent snow days each month and steady northwest breezes around 12–15 mph. Humidity runs unusually high for the Rocky Mountains, thanks to the Snake River headwaters micro-climate.

This video from February ’25 best sums up Jackson, WY winter weather:

• Shoulder swings (March & April)
  Temperatures leapfrog 20–30 °F within a day. Snow gradually trades places with cold rain; wind is still gusty. Pack everything from ski shells to rubber boots.
• Mud-lovin’ May
  Warm-ish afternoons (~60 °F) meet the year’s wettest month by number of rain days (≈ 9). Great for wildflowers, lousy for white suede loafers.
• Blue-sky summer (Jun – Aug)
  Chamber-of-commerce weather: Crisp mornings in the 40s, highs topping in the low 80s, and fewer than five wet days a month. Afternoon wind settles into a pleasant 10-13 mph west breeze, just enough to keep skeeters confused.
• Golden fall (Sep & Oct)
  Aspen gold arrives with cool nights and a faint uptick in moisture. First valley snowflakes often ride an early-October cold front.
• Storm-building November
  Clocks fall back, humidity jumps, and snow days triple relative to October. By Thanksgiving, ski wax chat replaces small talk.

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Local Tips

• Altitude adds bite. Valley readings come from ~6,200 ft; Grand Teton summits run 7,000 ft higher and are 10-15 °F colder with double the wind.
• Day–night spreads are huge. A July day can hit 85 °F and still flirt with frost at dawn. Great for sleeping, terrible for leaving beer outside “just to chill.”
• Wind matters on the water. Snake River rafters should expect afternoon gusts that can turn flatwater sections into surprise workouts.

Remember, in Jackson Hole, “four-season wardrobe” really means all four seasons in the same week, possibly the same day.