ClimateExplore the planning map
Climate · Keystone

Keystone in August

Warm and wet, as the days shorten.

Typical weather, averaged over 30 years

August in Keystone is warm: highs near 82°F, lows near 59°F. Rain falls on about three days a week, less often as the month goes on, and the days shorten by 1 hour 17 minutes from the first week to the last.August in Keystone is warm: highs near 28°C, lows near 15°C. Rain falls on about three days a week, less often as the month goes on, and the days shorten by 1 hour 17 minutes from the first week to the last.

High
82°F28°Caverage
Low
59°F15°Caverage
Wet days
3a week · 48% of days
Daylight
13h 55mon average

Is August a good time to visit Keystone?

A good month, just outside Keystone's best months, which run from September.

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 August sits in the year

week by week

Temperature

Highs near 82°F in August, against 38°F to 84°F through the year.Highs near 28°C in August, against 3°C to 29°C through the year.

Chance of a wet day

48% of days in August, against 16% to 57% through the year.

Cloud cover

31% cover in August, against 27% to 54% through the year.

Daylight

13h 55m in August, against 8h 57m to 15h 25m through the year.

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

Either side

  1. July84°29°low 60°low 16°4 wet days a weekRain on about four days a week.
  2. August82°28°low 59°low 15°3 wet days a weekRain on about three days a week.
  3. September75°24°low 51°low 11°2 wet days a weekRain on about two days a week.

Where Keystone sits, in August

America/Denver
this place
typical high in August 40°F4°C95°F35°C
Sunrise, mid-August
5:57 AMsets 8:00 PM
Above the sea
1,430 mupland
Latitude
43.9°Nnorthern hemisphere
Nearest of ours
Saratoga386 km south-west

The land around Keystone, shaded by its typical high in August, 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 August

high · low · wet days
See August on the planning mapThe whole year in Keystone

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Keystone. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match.Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match. 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.