Average Weather in Saint-Bon-Tarentaise France
In Saint-Bon-Tarentaise, the summers are comfortable, the winters are freezing and snowy, and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 14°F to 68°F and is rarely below 6°F or above 76°F.
Based on the tourism score, the best time of year to visit Saint-Bon-Tarentaise for warm-weather activities is from early July to mid August.
The warm season lasts for 3.3 months, from June 3 to September 13, with an average daily high temperature above 60°F. The hottest day of the year is July 26, with an average high of 68°F and low of 47°F.
The cold season lasts for 3.5 months, from November 19 to March 5, with an average daily high temperature below 37°F. The coldest day of the year is January 12, with an average low of 14°F and high of 29°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature
In Saint-Bon-Tarentaise, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year in Saint-Bon-Tarentaise begins around June 20 and lasts for 2.9 months, ending around September 15. On July 25, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 67% of the time, and overcast or mostly cloudy 33% of the time.
The cloudier part of the year begins around September 15 and lasts for 9.1 months, ending around June 20. On May 9, the cloudiest day of the year, the sky is overcast or mostly cloudy 59% of the time, and clear, mostly clear, or partly cloudy 41% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Saint-Bon-Tarentaise varies throughout the year.
The wetter season lasts 2.0 months, from April 27 to June 26, with a greater than 30% chance of a given day being a wet day. The chance of a wet day peaks at 38% on May 25.
The drier season lasts 10 months, from June 26 to April 27. The smallest chance of a wet day is 21% on March 5.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation in Saint-Bon-Tarentaise changes throughout the year.
Rain alone is the most common for 8.4 months, from March 9 to November 20. The highest chance of a day with rain alone is 37% on May 25.
Snow alone is the most common for 3.6 months, from November 20 to March 9. The highest chance of a day with snow alone is 19% on January 15.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Saint-Bon-Tarentaise experiences significant seasonal variation in monthly rainfall.
The rainy period of the year lasts for 10 months, from February 15 to December 22, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around May 24, with an average total accumulation of 2.8 inches.
The rainless period of the year lasts for 1.8 months, from December 22 to February 15. The least rain falls around January 15, with an average total accumulation of 0.4 inches.
Average Monthly Rainfall
We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.
As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Saint-Bon-Tarentaise experiences significant seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 6.9 months, from October 12 to May 9, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around December 30, with an average total liquid-equivalent accumulation of 1.9 inches.
The snowless period of the year lasts for 5.1 months, from May 9 to October 12. The least snow falls around August 2, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Saint-Bon-Tarentaise varies significantly over the course of the year. In 2018, the shortest day is December 21, with 8 hours, 43 minutes of daylight; the longest day is June 21, with 15 hours, 41 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:44 AM on June 16, and the latest sunrise is 2 hours, 29 minutes later at 8:13 AM on January 2. The earliest sunset is at 4:50 PM on December 10, and the latest sunset is 4 hours, 36 minutes later at 9:26 PM on June 26.
Daylight saving time (DST) is observed in Saint-Bon-Tarentaise during 2018, starting in the spring on March 25, lasting 7.1 months, and ending in the fall on October 28.
Sunrise & Sunset with Twilight and Daylight Saving Time
The perceived humidity level in Saint-Bon-Tarentaise, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 0% throughout.
Humidity Comfort Levels
Average Wind Speed
The predominant average hourly wind direction in Saint-Bon-Tarentaise varies throughout the year.
The wind is most often from the south for 2.9 weeks, from September 30 to October 20, with a peak percentage of 31% on October 3. The wind is most often from the east for 1.6 weeks, from October 20 to October 31 and for 2.3 weeks, from November 15 to December 1, with a peak percentage of 32% on November 30. The wind is most often from the west for 2.1 weeks, from October 31 to November 15 and for 10.0 months, from December 1 to September 30, with a peak percentage of 30% on November 7.
Best Time of Year to Visit
To characterize how pleasant the weather is in Saint-Bon-Tarentaise throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Saint-Bon-Tarentaise for general outdoor tourist activities is from early July to mid August, with a peak score in the last week of July.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Saint-Bon-Tarentaise for hot-weather activities is from mid July to early August, with a peak score in the last week of July.
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
The growing season in Saint-Bon-Tarentaise typically lasts for 4.2 months (128 days), from around May 22 to around September 27, rarely starting before April 30 or after June 11, and rarely ending before September 1 or after October 17.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Saint-Bon-Tarentaise should appear around June 2, only rarely appearing before May 21 or after June 17.
Growing Degree Days
The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 3.2 months, from May 11 to August 18, with an average daily incident shortwave energy per square meter above 6.2 kWh. The brightest day of the year is July 6, with an average of 7.4 kWh.
The darker period of the year lasts for 3.3 months, from October 28 to February 8, with an average daily incident shortwave energy per square meter below 2.8 kWh. The darkest day of the year is December 21, with an average of 1.6 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Saint-Bon-Tarentaise are 45.434 deg latitude, 6.637 deg longitude, and 5,128 ft elevation.
The topography within 2 miles of Saint-Bon-Tarentaise contains extreme variations in elevation, with a maximum elevation change of 4,882 feet and an average elevation above sea level of 4,384 feet. Within 10 miles also contains extreme variations in elevation (11,112 feet). Within 50 miles also contains extreme variations in elevation (15,108 feet).
The area within 2 miles of Saint-Bon-Tarentaise is covered by trees (70%) and grassland (16%), within 10 miles by trees (34%) and grassland (32%), and within 50 miles by trees (38%) and grassland (23%).
This report illustrates the typical weather in Saint-Bon-Tarentaise, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Saint-Bon-Tarentaise.
For each station, the records are corrected for the elevation difference between that station and Saint-Bon-Tarentaise according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Saint-Bon-Tarentaise is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Saint-Bon-Tarentaise and a given station.
The stations contributing to this reconstruction are: Chambéry Airport (19%, 63 kilometers, west); Aosta Airport (26%, 65 kilometers, northeast); Annecy-Meythet (23%, 69 kilometers, northwest); Turin Caselle Airport (19%, 83 kilometers, east); and Château-Arnoux-Saint-Auban Airport (13%, 160 kilometers, south).
Time zones for aiports and weather stations are provided by AskGeo.com .