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Climate · Jackson

Jackson in May

Cool and wet, as the days lengthen.

Typical weather, averaged over 30 years

May in Jackson is cool: highs near 57°F, lows near 32°F. Rain falls on about three days a week, and the days lengthen by 58 minutes from the first week to the last.May in Jackson is cool: highs near 14°C, lows near 0°C. Rain falls on about three days a week, and the days lengthen by 58 minutes from the first week to the last.

High
57°F14°Caverage
Low
32°F0°Caverage
Wet days
3a week · 49% of days
Daylight
14h 41mon average

Is May a good time to visit Jackson?

May sits outside Jackson's best months, which run from July to September. Expect cool days and rain on about three days a week.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How May sits in the year

week by week

Temperature

Highs near 57°F in May, against 30°F to 83°F through the year.Highs near 14°C in May, against -1°C to 28°C through the year.

Chance of a wet day

49% of days in May, against 25% to 57% through the year.

Cloud cover

56% cover in May, against 26% to 62% through the year.

Daylight

14h 41m in May, against 9h 00m to 15h 22m through the year.

Week by week, lightly smoothed, with May shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. April48°9°low 26°low -3°4 wet days a weekRain on about four days a week.
  2. May57°14°low 32°low 0°3 wet days a weekRain on about three days a week.
  3. June72°22°low 41°low 5°3 wet days a weekRain on about three days a week.

Where Jackson sits, in May

America/Boise
this place
typical high in May 40°F4°C95°F35°C
Sunrise, mid-May
5:59 AMsets 8:39 PM
Above the sea
1,912 mhigh country
Latitude
43.5°Nnorthern hemisphere
Nearest of ours
Moose35 km north-east

The land around Jackson, shaded by its typical high in May, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in United States in May

high · low · wet days
See May on the planning mapThe whole year in Jackson

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Jackson. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (1,912 m) against the climate model's (2,059 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (1,912 m) against the climate model's (2,059 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.