Jackson Hole, WY Climate & Monthly Averages
Jackson Hole has a humid continental climate. July is the hottest month, averaging 80° by day; December is the coldest at 29°.
Winter sets the pace in Jackson Hole
Cold is the baseline in Jackson Hole, not the exception. Night-time lows sit at or below freezing in 8 months of the year, and the warmest month, July, still only averages 80°F (26°C) by day. December runs to 11°F (-12°C) after dark.
July
80° by day 50° at nightDecember
29° by day 11° at nightThe cold-weather pattern in numbers
February is the wettest month at 3.2 inches (82 mm) over 14 days; July is the driest. Warmth peaks in July: highs of 80°F (26°C), lows of 50°F (10°C). December is the coolest month, with highs of 29°F (-2°C) and lows near 11°F (-12°C). Relative humidity averages 67% across the year, drier than about 75% of the cities we track.
Snow falls on roughly 74 days a year, mostly September through May. Overnight lows average at or below freezing for 8 months, October through May. Sunshine averages 9.6 hours a day over the year, peaking in July at 14.2 hours. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 91°F (33°C) and the lowest daily minimum -20°F (-29°C).
More climate facts for Jackson Hole
- Hottest month: July - highs near 80°F (26°C)
- Coldest month: December - highs near 29°F (-2°C)
- Decade extremes (2015-2024): 91°F (33°C) high · -20°F (-29°C) low
- Wettest month: February (14 rainy days) · Sunniest: July (14.2 h sun/day)
- Climate type: humid continental
- Annual swing: 25°C between the average warmest and coolest month · day to night: 13°C
- Snow: about 74 days a year
- Months with freezing average lows: 8
- Average humidity: 67%
From snow season to the warmest stretch in Jackson Hole
Spring (March through May)
Spring runs cold here - highs near 47°F (8°C), nights near 25°F (-4°C), and rain falls on around 39 of the 90 days, plus about 23 snowy days. Daylight is generous - around 10.3 hours of sun a day.
Summer (June through August)
Through summer, Jackson Hole is pleasantly warm: 76°F (24°C) by day, 47°F (8°C) after dark, and expect showers on roughly 18 days across the season. Daylight is generous - around 13.4 hours of sun a day.
Fall (September through November)
Through fall, Jackson Hole stays firmly cold: 53°F (12°C) by day, 29°F (-1°C) after dark, and expect showers on roughly 29 days across the season, plus about 15 snowy days.
Winter (December through February)
Winter runs to hard cold here - highs near 30°F (-1°C), nights near 12°F (-11°C), and rain falls on around 40 of the 90 days, plus about 36 snowy days. Wind sharpens cold like this considerably; pair the forecast winds with the wind speed converter to judge exposed conditions.
The coldest and warmest values in the dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.
Planning around winter in Jackson Hole
The easier weather window
The best time to visit Jackson Hole is generally June to September, when these are the warmest and brightest weeks of the year. Daytime temperatures in that window sit near 74°F (23°C), with rain on about 6 days a month. For the same question asked the other way round, see where else is warm in June.
Cold-weather packing
Pack for Jackson Hole with a heavy insulated coat, hat and gloves for winter and a compact umbrella or rain shell. Even in July, lows of 50°F (10°C) make an extra layer worth the space.
Monthly highs, lows and seasonal change
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 29° | 12° | 13 | 2.8 in | 5.9 h/day | 9.3 h | 42% | 74% |
| February | 31° | 14° | 14 | 3.2 in | 6.8 h/day | 10.4 h | 51% | 72% |
| March | 40° | 19° | 14 | 2.8 in | 8.7 h/day | 11.8 h | 44% | 69% |
| April | 46° | 25° | 14 | 2.4 in | 10.3 h/day | 13.4 h | 45% | 68% |
| May | 55° | 31° | 12 | 2.2 in | 12.0 h/day | 14.7 h | 40% | 69% |
| June | 70° | 42° | 9 | 1.7 in | 13.5 h/day | 15.4 h | 30% | 61% |
| July | 80° | 50° | 4 | 0.7 in | 14.2 h/day | 15.1 h | 14% | 51% |
| August | 78° | 49° | 5 | 1.2 in | 12.4 h/day | 14.0 h | 17% | 53% |
| September | 69° | 41° | 8 | 2.2 in | 11.0 h/day | 12.4 h | 26% | 61% |
| October | 53° | 30° | 10 | 2.3 in | 8.8 h/day | 10.9 h | 33% | 71% |
| November | 37° | 17° | 11 | 2.7 in | 6.7 h/day | 9.6 h | 38% | 77% |
| December | 29° | 11° | 13 | 3.0 in | 5.3 h/day | 9.0 h | 41% | 76% |
The route from winter to summer, month by month
Each card shows the average high and low. The bar places that month between Jackson Hole's coldest night and warmest afternoon.
January
- Rain
- 13 days
- Sunshine
- 5.9 h
- Daylight
- 9.3 h
- Snow
- 12 days
February
- Rain
- 14 days
- Sunshine
- 6.8 h
- Daylight
- 10.4 h
- Snow
- 12 days
March
- Rain
- 14 days
- Sunshine
- 8.7 h
- Daylight
- 11.8 h
- Snow
- 11 days
April
- Rain
- 14 days
- Sunshine
- 10.3 h
- Daylight
- 13.4 h
- Snow
- 8 days
May
- Rain
- 12 days
- Sunshine
- 12.0 h
- Daylight
- 14.7 h
- Snow
- 4 days
June
- Rain
- 9 days
- Sunshine
- 13.5 h
- Daylight
- 15.4 h
July
- Rain
- 4 days
- Sunshine
- 14.2 h
- Daylight
- 15.1 h
August
- Rain
- 5 days
- Sunshine
- 12.4 h
- Daylight
- 14.0 h
September
- Rain
- 8 days
- Sunshine
- 11.0 h
- Daylight
- 12.4 h
October
- Rain
- 10 days
- Sunshine
- 8.8 h
- Daylight
- 10.9 h
- Snow
- 5 days
November
- Rain
- 11 days
- Sunshine
- 6.7 h
- Daylight
- 9.6 h
- Snow
- 9 days
December
- Rain
- 13 days
- Sunshine
- 5.3 h
- Daylight
- 9.0 h
- Snow
- 12 days
Looking for warmer alternatives? Browse warm places by month, or compare Jackson Hole's coolest part of the year: December, January, February.
Where Jackson Hole sits among other climates
- Jackson Hole averages 40°F (4°C) across the year - cooler than almost every other city we track.
- Afternoons run 13°C above the following night - a bigger day-to-night gap than 94% of the 3496 cities we track.
These comparisons use the same ten-year window for every city in the dataset.