Average Weather in May in Châtillon-sur-Cluses France
Daily high temperatures increase by 7°F, from 60°F to 67°F, rarely falling below 50°F or exceeding 78°F.
Daily low temperatures increase by 6°F, from 42°F to 49°F, rarely falling below 35°F or exceeding 55°F.
For reference, on August 4, the hottest day of the year, temperatures in Châtillon-sur-Cluses typically range from 56°F to 76°F, while on January 15, the coldest day of the year, they range from 25°F to 36°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
The month of May in Châtillon-sur-Cluses experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 58% throughout the month. The highest chance of overcast or mostly cloudy conditions is 60% on May 8.
The clearest day of the month is May 31, with clear, mostly clear, or partly cloudy conditions 44% of the time.
For reference, on May 8, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 60%, while on July 23, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 65%.
Cloud Cover Categories in May
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Châtillon-sur-Cluses, the chance of a wet day over the course of May is rapidly increasing, starting the month at 32% and ending it at 39%.
For reference, the year's highest daily chance of a wet day is 40% on May 25, and its lowest chance is 25% on March 3.
Probability of Precipitation in May
The average sliding 31-day rainfall during May in Châtillon-sur-Cluses is increasing, starting the month at 2.9 inches, when it rarely exceeds 4.9 inches or falls below 1.1 inches, and ending the month at 3.5 inches, when it rarely exceeds 5.5 inches or falls below 1.6 inches.
The highest average 31-day accumulation is 3.5 inches on May 31.
Average Monthly Rainfall in May
Over the course of May in Châtillon-sur-Cluses, 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, 9 minutes, implying an average daily increase of 2 minutes, 17 seconds, and weekly increase of 16 minutes, 0 seconds.
The shortest day of the month is May 1, with 14 hours, 21 minutes of daylight and the longest day is May 31, with 15 hours, 30 minutes of daylight.
Hours of Daylight and Twilight in May
The latest sunrise of the month in Châtillon-sur-Cluses is 6:20 AM on May 1 and the earliest sunrise is 34 minutes earlier at 5:46 AM on May 31.
The earliest sunset is 8:41 PM on May 1 and the latest sunset is 35 minutes later at 9:16 PM on May 31.
Daylight saving time is observed in Châtillon-sur-Cluses 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 5:42 AM and sets 15 hours, 46 minutes later, at 9:28 PM, while on December 21, the shortest day of the year, it rises at 8:12 AM and sets 8 hours, 38 minutes later, at 4:50 PM.
Sunrise & Sunset with Twilight in May
The chance that a given day will be muggy in Châtillon-sur-Cluses is essentially constant during May, remaining around 0% throughout.
For reference, on July 21, the muggiest day of the year, there are muggy conditions 0% 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
The average hourly wind speed in Châtillon-sur-Cluses is essentially constant during May, remaining around 4.6 miles per hour throughout.
For reference, on February 19, 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 4.3 miles per hour.
The lowest daily average wind speed during May is 4.6 miles per hour on May 21.
Average Wind Speed in May
Wind Direction in May
The growing season in Châtillon-sur-Cluses typically lasts for 6.5 months (199 days), from around April 13 to around October 29, rarely starting before March 25 or after May 3, and rarely ending before October 8 or after November 18.
The month of May in Châtillon-sur-Cluses is more likely than not fully within the growing season, with the chance that a given day is in the growing season increasing from 88% to 100% 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 Châtillon-sur-Cluses are increasing during May, increasing by 197°F, from 99°F to 296°F, over the course of the month.
Growing Degree Days in May
The average daily incident shortwave solar energy in Châtillon-sur-Cluses is gradually increasing during May, rising by 0.8 kWh, from 5.7 kWh to 6.5 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 Châtillon-sur-Cluses are 46.091 deg latitude, 6.587 deg longitude, and 2,467 ft elevation.
The topography within 2 miles of Châtillon-sur-Cluses contains large variations in elevation, with a maximum elevation change of 2,818 feet and an average elevation above sea level of 2,394 feet. Within 10 miles contains large variations in elevation (7,543 feet). Within 50 miles also contains extreme variations in elevation (14,987 feet).
The area within 2 miles of Châtillon-sur-Cluses is covered by trees (38%), cropland (35%), and artificial surfaces (18%), within 10 miles by trees (50%) and grassland (21%), and within 50 miles by trees (39%) and grassland (20%).
This report illustrates the typical weather in Châtillon-sur-Cluses 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 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Châtillon-sur-Cluses.
For each station, the records are corrected for the elevation difference between that station and Châtillon-sur-Cluses 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 Châtillon-sur-Cluses is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Châtillon-sur-Cluses and a given station.
The stations contributing to this reconstruction are: Aéroport Genève-Cointrin (27%, 40 kilometers, northwest); Annecy-Meythet (28%, 42 kilometers, southwest); Sion (20%, 58 kilometers, east); Aosta Airport (16%, 71 kilometers, southeast); and Neuchatel (9%, 105 kilometers, north).
Time zones for aiports and weather stations are provided by AskGeo.com .