Is Arapahoe Basin snowsure?

The snowiest week in Arapahoe Basin is week 3 of April. There are typically 4.6 snowy days during this week with 40cm of snowfall. Check out the Arapahoe Basin Snow History graphs below.Select any week of the year to see the typical Ski Conditions, Snowfall Amount and Temperature based on nowcast weather data over the last 11 years.

Average monthly snow in Arapahoe Basin

MonthSnow amount (week)Snow days (week)
December15cm3.1 days
January13cm3.2 days
February20cm4.1 days
March22cm3.7 days
April27cm4.1 days

Average Snow and Weather Conditions in Arapahoe Basin during September (week 3):

The average snowfall forecast during week 3 of September for Arapahoe Basin is 2 cm. There are typically 0.4 snowy days during this week. Arapahoe Basin prevailing weather and snow conditions during the third week of September at the middle elevation of the ski area at 3632m, based on historical averages over the last 10 years: At this time of year the average freezing level (4428m) is a long way above the mid altitude of Arapahoe Basin. A day with snowfall occurs on average every other year during the third week of September but on average there are one or two wet days during this week every year. In the years when snow falls at this time of year, forecast model average snowfall for the week is 4cm. Temperatures averaging above freezing both night and day in Arapahoe Basin during week three of September with average maximum temperature 6.8°C and minimum temperature 3.0°C at the mid altitude. Often sunny. Expect sunshine on four or five days. Generally light winds (average 13km/h).

Snow History: Compare Resorts

Compare Arapahoe Basin with:

Snow Depths

Recorded snow depths for the upper and lower slopes in Arapahoe Basin and (2007 – 2018).


Arapahoe Basin

Lower Slopes
Upper Slopes
Fresh Snow

Average Snow Conditions in

Best ski days per week in Arapahoe Basin and (2007 – 2018)


Bluebird Powder Day
(Fresh snow, mostly sunny, light wind)
Powder Day
(Fresh snow, limited sun, any wind)
Bluebird Day
(Average snow, mostly sunny, light wind)
Very windy days

The most cherished days on the mountain in Arapahoe Basin are Bluebird Powder days when it is mostly sunny with light winds following very recent snowfall. Poorer weather conditions may prevail on Powder days when the visibility can be limited but the snow is significantly deep and fresh for keen powder-hounds. Bluebird days can suit many skiers that aren’t necessarily hunting powder but want to enjoy the snowy mountains in sunnier conditions and light winds.

Average Snowfall in

Graph showing the average precipitation (snow/rain) in Arapahoe Basin and (2007 – 2018)


Snowfall amount
(bar chart)
Days with significant snowfall.
Days with significant rainfall.

The snowiest weeks of the year in Arapahoe Basin are shown but also bear in mind the number of days that it typically snows each week if you want regular fresh tracks. The risk of a rainy day is shown but be sure to switch between elevations to see if lower lifts are rain affected or higher lifts remain snowy despite any rain further down the mountain.

Average Temperature in

Graph showing the average temperature and freezing level at Arapahoe Basin and (2007 – 2018)


Average temperature
Above freezing
Below freezing
Freezing level
Dashed line

The highest and lowest temperatures averaged for each week of the year in Arapahoe Basin are shown. Check out the risk of freze-thaw conditions prevailing at different elevations for any given week. We also show the extremes of temperature (blue/red dots) that reveal the chance of unusually warm or cold conditions.