Average Weather in Silenen Switzerland
In Silenen, the summers are cool and wet, the winters are freezing and snowy, and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 17°F to 66°F and is rarely below 8°F or above 75°F.
Based on the tourism score, the best time of year to visit Silenen for warm-weather activities is from early July to mid August.
The warm season lasts for 3.3 months, from June 2 to September 10, with an average daily high temperature above 58°F. The hottest day of the year is July 27, with an average high of 66°F and low of 49°F.
The cold season lasts for 3.5 months, from November 19 to March 2, with an average daily high temperature below 35°F. The coldest day of the year is January 12, with an average low of 17°F and high of 28°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 Silenen, 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 Silenen begins around June 22 and lasts for 3.0 months, ending around September 21. On July 30, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 59% of the time, and overcast or mostly cloudy 41% of the time.
The cloudier part of the year begins around September 21 and lasts for 9.0 months, ending around June 22. On May 8, the cloudiest day of the year, the sky is overcast or mostly cloudy 63% of the time, and clear, mostly clear, or partly cloudy 37% 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 Silenen varies throughout the year.
The wetter season lasts 3.8 months, from April 29 to August 23, with a greater than 40% chance of a given day being a wet day. The chance of a wet day peaks at 52% on June 12.
The drier season lasts 8.2 months, from August 23 to April 29. The smallest chance of a wet day is 28% on March 3.
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 Silenen changes throughout the year.
Rain alone is the most common for 8.2 months, from March 15 to November 19. The highest chance of a day with rain alone is 51% on June 12.
Snow alone is the most common for 3.8 months, from November 19 to March 15. The highest chance of a day with snow alone is 24% on January 16.
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. Silenen experiences extreme seasonal variation in monthly rainfall.
The rainy period of the year lasts for 10 months, from February 13 to December 23, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around June 10, with an average total accumulation of 5.4 inches.
The rainless period of the year lasts for 1.6 months, from December 23 to February 13. The least rain falls around January 15, with an average total accumulation of 0.3 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. Silenen experiences extreme seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 7.3 months, from October 8 to May 17, 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 27, with an average total liquid-equivalent accumulation of 2.2 inches.
The snowless period of the year lasts for 4.7 months, from May 17 to October 8. The least snow falls around August 3, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Silenen varies significantly over the course of the year. In 2017, the shortest day is December 21, with 8 hours, 32 minutes of daylight; the longest day is June 21, with 15 hours, 52 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:30 AM on June 16, and the latest sunrise is 2 hours, 40 minutes later at 8:10 AM on January 1. The earliest sunset is at 4:36 PM on December 11, and the latest sunset is 4 hours, 47 minutes later at 9:23 PM on June 26.
Daylight saving time (DST) is observed in Silenen during 2017, starting in the spring on March 26, lasting 7.1 months, and ending in the fall on October 29.
Sunrise & Sunset with Twilight and Daylight Saving Time
The perceived humidity level in Silenen, 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
The average hourly wind speed in Silenen experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 7.0 months, from October 11 to May 13, with average wind speeds of more than 4.2 miles per hour. The windiest day of the year is January 26, with an average hourly wind speed of 4.8 miles per hour.
The calmer time of year lasts for 5.0 months, from May 13 to October 11. The calmest day of the year is August 10, with an average hourly wind speed of 3.6 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Silenen varies throughout the year.
The wind is most often from the north for 3.0 months, from May 27 to August 26, with a peak percentage of 37% on July 26. The wind is most often from the south for 9.0 months, from August 26 to May 27, with a peak percentage of 55% on January 1.
Best Time of Year to Visit
To characterize how pleasant the weather is in Silenen 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 Silenen for general outdoor tourist activities is from early July to mid August, with a peak score in the first week of August.
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 Silenen 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 Silenen typically lasts for 4.8 months (146 days), from around May 16 to around October 9, rarely starting before April 25 or after June 6, and rarely ending before September 19 or after October 26.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Silenen should appear around June 3, only rarely appearing before May 24 or after June 20.
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 3.5 months, from May 3 to August 19, with an average daily incident shortwave energy per square meter above 5.6 kWh. The brightest day of the year is July 7, with an average of 6.7 kWh.
The darker period of the year lasts for 3.3 months, from October 29 to February 8, with an average daily incident shortwave energy per square meter below 2.5 kWh. The darkest day of the year is December 21, with an average of 1.4 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Silenen are 46.789 deg latitude, 8.673 deg longitude, and 4,505 ft elevation.
The topography within 2 miles of Silenen contains extreme variations in elevation, with a maximum elevation change of 7,717 feet and an average elevation above sea level of 3,740 feet. Within 10 miles also contains extreme variations in elevation (9,327 feet). Within 50 miles also contains extreme variations in elevation (13,179 feet).
The area within 2 miles of Silenen is covered by trees (59%) and grassland (15%), within 10 miles by grassland (26%) and bare soil (26%), and within 50 miles by trees (33%) and grassland (25%).
This report illustrates the typical weather in Silenen, 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 Silenen.
For each station, the records are corrected for the elevation difference between that station and Silenen 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 Silenen is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Silenen and a given station.
The stations contributing to this reconstruction are: Buochs Airport (31%, 29 kilometers, northwest); Interlaken Airport (34%, 43 kilometers, west); Locarno Airport (18%, 71 kilometers, south); and Resia Pass (17%, 139 kilometers, east).
Time zones for aiports and weather stations are provided by AskGeo.com .