Average Weather in May in Erstfeld Switzerland
Daily high temperatures increase by 7°F, from 52°F to 59°F, rarely falling below 41°F or exceeding 70°F.
Daily low temperatures increase by 7°F, from 35°F to 42°F, rarely falling below 28°F or exceeding 49°F.
For reference, on July 27, the hottest day of the year, temperatures in Erstfeld typically range from 50°F to 67°F, while on January 15, the coldest day of the year, they range from 17°F to 29°F.
Average High and Low Temperature in May
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on May. 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 May
Valdez, Alaska, United States (4,854 miles away); Haines, Alaska, United States (4,837 miles); and Whistler, Canada (5,150 miles) are the far-away foreign places with temperatures most similar to Erstfeld (view comparison).
The month of May in Erstfeld experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 62% throughout the month. The highest chance of overcast or mostly cloudy conditions is 63% on May 8.
The clearest day of the month is May 31, with clear, mostly clear, or partly cloudy conditions 40% 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 59%.
Cloud Cover Categories in May
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Erstfeld, the chance of a wet day over the course of May is very rapidly increasing, starting the month at 40% and ending it at 50%.
For reference, the year's highest daily chance of a wet day is 52% on June 12, and its lowest chance is 29% on March 3.
Over the course of May in Erstfeld, the chance of a day with only rain increases from 34% to 50%, the chance of a day with mixed snow and rain decreases from 5% to 0%, and the chance of a day with only snow remains an essentially constant 1% throughout.
Probability of Precipitation in May
The average sliding 31-day rainfall during May in Erstfeld is rapidly increasing, starting the month at 3.6 inches, when it rarely exceeds 6.0 inches or falls below 1.4 inches, and ending the month at 5.3 inches, when it rarely exceeds 8.1 inches or falls below 2.7 inches.
Average Monthly Rainfall in May
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 May in Erstfeld is gradually decreasing, starting the month at 0.3 inches, when it rarely exceeds 0.9 inches, and ending the month at 0.0 inches, when it rarely exceeds 0.0 inches or falls below -0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in May
Over the course of May in Erstfeld, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1 hour, 11 minutes, implying an average daily increase of 2 minutes, 21 seconds, and weekly increase of 16 minutes, 30 seconds.
The shortest day of the month is May 1, with 14 hours, 25 minutes of daylight and the longest day is May 31, with 15 hours, 35 minutes of daylight.
Hours of Daylight and Twilight in May
The latest sunrise of the month in Erstfeld is 6:10 AM on May 1 and the earliest sunrise is 35 minutes earlier at 5:35 AM on May 31.
The earliest sunset is 8:35 PM on May 1 and the latest sunset is 36 minutes later at 9:10 PM on May 31.
Daylight saving time is observed in Erstfeld during 2018, but it neither starts nor ends during May, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:31 AM and sets 15 hours, 52 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, 32 minutes later, at 4:39 PM.
Sunrise & Sunset with Twilight in May
The chance that a given day will be muggy in Erstfeld is essentially constant during May, remaining around 0% throughout.
For reference, on July 10, the muggiest day of the year, there are muggy conditions 1% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in May
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Erstfeld is essentially constant during May, remaining within 0.1 miles per hour of 4.3 miles per hour throughout.
For reference, on January 26, 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 May
Wind Direction in May
The growing season in Erstfeld typically lasts for 4.8 months (147 days), from around May 15 to around October 9, rarely starting before April 23 or after June 6, and rarely ending before September 18 or after October 27.
During May in Erstfeld, the chance that a given day is within the growing season is very rapidly increasing rising from 23% to 81% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in May
The average accumulated growing degree days in Erstfeld are gradually increasing during May, increasing by 69°F, from 18°F to 88°F, over the course of the month.
Growing Degree Days in May
The average daily incident shortwave solar energy in Erstfeld is gradually increasing during May, rising by 0.6 kWh, from 5.6 kWh to 6.2 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in May
For the purposes of this report, the geographical coordinates of Erstfeld are 46.819 deg latitude, 8.651 deg longitude, and 4,150 ft elevation.
The topography within 2 miles of Erstfeld contains extreme variations in elevation, with a maximum elevation change of 6,404 feet and an average elevation above sea level of 3,446 feet. Within 10 miles also contains extreme variations in elevation (9,334 feet). Within 50 miles also contains extreme variations in elevation (13,268 feet).
The area within 2 miles of Erstfeld is covered by trees (54%), grassland (16%), and shrubs (11%), 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 Erstfeld 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Erstfeld.
For each station, the records are corrected for the elevation difference between that station and Erstfeld 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 Erstfeld is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Erstfeld and a given station.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Time zones for aiports and weather stations are provided by AskGeo.com .