Mountain air

Jackson Hole, Wyoming weather in May

Temperature, rain and sunshine in May: long-term averages from 30 years of weather data, not a forecast.

61

Holiday weather in May

Good

Best time to visit: June – September

Best for skiing: December – April

What is the weather like in Jackson Hole, Wyoming in May?

In May, Jackson Hole, Wyoming is cool: daytime highs average 12 °C, and nights cool down to about 1 °C. The sun shines for around 8 hours a day. Rain is frequent, with about 12 rainy days and 62 mm in total. Snow falls on about 4 days. All in all, May is a good month for a holiday in Jackson Hole, Wyoming.

May compared

How the weather changes from April to June. Tap a month to open it.

AprilAprMayMayJuneJun
Score276189
Day7°12°20°
Night−2°1°6°
Sun7 h8 h10 h
Rain days14129

More details for May

Daylight
14 h 40 min05:59 – 20:39
UV index
9 · very highclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
12 km/haverage daily peakAll months
Cloud cover
57 %on averageAll months
Hot days
0 days30 °C or moreAll months
Snow days
4 days1 cm or more of fresh snowAll months
Time zone
UTC−6America/Denver

How the score comes together

  • Temperatureweight 50 %63 %
  • Sunshineweight 20 %80 %
  • Few rainy daysweight 30 %45 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Mountain air”.

What to pack in May

  • Sunscreen
  • Sunglasses & sun hat
  • A jumper for the evenings
  • Hat, scarf & gloves
  • Rain jacket or umbrella

Jackson Hole, Wyoming in May: quick answers

Is Jackson Hole, Wyoming hot in May?

No. In May, Jackson Hole, Wyoming is cool: daytime highs average 12 °C and nights drop to about 1 °C.

Does it rain much in Jackson Hole, Wyoming in May?

Rain is frequent, with about 12 rainy days and 62 mm in total.

Jackson Hole, Wyoming month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences