Average Weather in December in Fiesch Switzerland
Daily high temperatures decrease by 4°F, from 30°F to 26°F, rarely falling below 18°F or exceeding 36°F.
Daily low temperatures decrease by 4°F, from 19°F to 15°F, rarely falling below 6°F or exceeding 27°F.
For reference, on July 25, the hottest day of the year, temperatures in Fiesch typically range from 46°F to 63°F, while on January 12, the coldest day of the year, they range from 14°F to 25°F.
Average High and Low Temperature in December
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on December. The horizontal axis is the day, 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 December
The month of December in Fiesch experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 50% throughout the month.
The clearest day of the month is December 18, with clear, mostly clear, or partly cloudy conditions 51% of the time.
For reference, on May 8, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 63%, while on July 30, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 61%.
Cloud Cover Categories in December
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Fiesch, the chance of a wet day over the course of December is essentially constant, remaining around 30% throughout.
For reference, the year's highest daily chance of a wet day is 48% on May 26, and its lowest chance is 24% on March 5.
Over the course of December in Fiesch, the chance of a day with only rain decreases from 3% to 1%, the chance of a day with mixed snow and rain decreases from 6% to 4%, and the chance of a day with only snow increases from 19% to 25%.
Probability of Precipitation in December
The average sliding 31-day rainfall during December in Fiesch is decreasing, starting the month at 0.8 inches, when it rarely exceeds 1.8 inches, and ending the month at 0.2 inches, when it rarely exceeds 0.6 inches or falls below -0.0 inches.
Average Monthly Rainfall in December
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. As with rainfall, we consider the liquid-equivalent snowfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day liquid-equivalent snowfall during December in Fiesch is gradually increasing, starting the month at 1.8 inches, when it rarely exceeds 3.3 inches or falls below 0.5 inches, and ending the month at 2.1 inches, when it rarely exceeds 3.8 inches or falls below 0.7 inches.
The highest average 31-day liquid-equivalent accumulation is 2.1 inches on December 21.
Average Monthly Liquid-Equivalent Snowfall in December
Over the course of December in Fiesch, the length of the day is essentially constant. The shortest day of the month is December 21, with 8 hours, 35 minutes of daylight and the longest day is December 1, with 8 hours, 53 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Fiesch is 7:50 AM on December 1 and the latest sunrise is 21 minutes later at 8:10 AM on December 31.
The earliest sunset is 4:40 PM on December 11 and the latest sunset is 10 minutes later at 4:50 PM on December 31.
Daylight saving time is observed in Fiesch during 2018, but it neither starts nor ends during December, so the entire month is in standard time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:34 AM and sets 15 hours, 49 minutes later, at 9:23 PM, while on December 21, the shortest day of the year, it rises at 8:07 AM and sets 8 hours, 35 minutes later, at 4:43 PM.
Sunrise & Sunset with Twilight in December
The chance that a given day will be muggy in Fiesch is essentially constant during December, remaining around 0% throughout.
Humidity Comfort Levels in December
The average hourly wind speed in Fiesch is essentially constant during December, remaining within 0.1 miles per hour of 4.6 miles per hour throughout.
For reference, on March 31, the windiest day of the year, the daily average wind speed is 5.0 miles per hour, while on August 10, the calmest day of the year, the daily average wind speed is 3.7 miles per hour.
Average Wind Speed in December
Wind Direction in December
The growing season in Fiesch typically lasts for 3.7 months (113 days), from around June 1 to around September 21, rarely starting before May 9 or after June 22, and rarely ending before August 28 or after October 15.
The month of December in Fiesch is reliably fully outside of the growing season.
Time Spent in Various Temperature Bands and the Growing Season in December
The average accumulated growing degree days in Fiesch are essentially constant during December, remaining around 498°F throughout.
Growing Degree Days in December
The average daily incident shortwave solar energy in Fiesch is essentially constant during December, remaining within 0.1 kWh of 1.6 kWh throughout.
The lowest average daily incident shortwave solar energy during December is 1.5 kWh on December 21.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Fiesch are 46.400 deg latitude, 8.135 deg longitude, and 5,335 ft elevation.
The topography within 2 miles of Fiesch contains extreme variations in elevation, with a maximum elevation change of 4,806 feet and an average elevation above sea level of 4,647 feet. Within 10 miles also contains extreme variations in elevation (11,716 feet). Within 50 miles also contains extreme variations in elevation (14,419 feet).
The area within 2 miles of Fiesch is covered by trees (62%) and grassland (27%), within 10 miles by grassland (26%) and bare soil (22%), and within 50 miles by trees (36%) and grassland (23%).
This report illustrates the typical weather in Fiesch year round, 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Fiesch.
For each station, the records are corrected for the elevation difference between that station and Fiesch 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 Fiesch is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Fiesch and a given station.
The stations contributing to this reconstruction are: Interlaken Airport (36%, 38 kilometers, north); Pian Rosa (15%, 62 kilometers, southwest); Locarno Airport (21%, 63 kilometers, southeast); and Sion Airport (28%, 65 kilometers, west).
Time zones for aiports and weather stations are provided by AskGeo.com .