Average Weather in May in Valloire France
Daily high temperatures increase by 8°F, from 46°F to 54°F, rarely falling below 37°F or exceeding 63°F.
Daily low temperatures increase by 7°F, from 29°F to 36°F, rarely falling below 23°F or exceeding 42°F.
For reference, on August 4, the hottest day of the year, temperatures in Valloire typically range from 43°F to 63°F, while on January 18, the coldest day of the year, they range from 9°F to 25°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 Valloire experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 57% throughout the month. The highest chance of overcast or mostly cloudy conditions is 59% on May 9.
The clearest day of the month is May 31, with clear, mostly clear, or partly cloudy conditions 45% of the time.
For reference, on May 9, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 59%, while on July 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 68%.
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 Valloire, the chance of a wet day over the course of May is gradually increasing, starting the month at 30% and ending it at 34%.
For reference, the year's highest daily chance of a wet day is 35% on May 25, and its lowest chance is 20% on March 5.
Over the course of May in Valloire, the chance of a day with only rain increases from 18% to 30%, the chance of a day with mixed snow and rain decreases from 9% to 3%, and the chance of a day with only snow decreases from 3% to 0%.
Probability of Precipitation in May
The average sliding 31-day rainfall during May in Valloire is increasing, starting the month at 1.7 inches, when it rarely exceeds 3.2 inches or falls below 0.5 inches, and ending the month at 2.3 inches, when it rarely exceeds 3.8 inches or falls below 0.8 inches.
The highest average 31-day accumulation is 2.3 inches on May 30.
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 Valloire is gradually decreasing, starting the month at 0.6 inches, when it rarely exceeds 1.5 inches, and ending the month at 0.1 inches, when it rarely exceeds 0.3 inches or falls below -0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in May
Over the course of May in Valloire, 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, 6 minutes, implying an average daily increase of 2 minutes, 13 seconds, and weekly increase of 15 minutes, 29 seconds.
The shortest day of the month is May 1, with 14 hours, 16 minutes of daylight and the longest day is May 31, with 15 hours, 22 minutes of daylight.
Hours of Daylight and Twilight in May
The latest sunrise of the month in Valloire is 6:23 AM on May 1 and the earliest sunrise is 33 minutes earlier at 5:51 AM on May 31.
The earliest sunset is 8:39 PM on May 1 and the latest sunset is 34 minutes later at 9:13 PM on May 31.
Daylight saving time is observed in Valloire during 2019, 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 5:46 AM and sets 15 hours, 38 minutes later, at 9:25 PM, while on December 22, the shortest day of the year, it rises at 8:10 AM and sets 8 hours, 45 minutes later, at 4:55 PM.
Sunrise & Sunset with Twilight in May
The chance that a given day will be muggy in Valloire is essentially constant during May, remaining around 0% throughout.
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 Valloire is essentially constant during May, remaining within 0.1 miles per hour of 4.4 miles per hour throughout.
For reference, on April 1, the windiest day of the year, the daily average wind speed is 4.7 miles per hour, while on August 10, the calmest day of the year, the daily average wind speed is 3.8 miles per hour.
Average Wind Speed in May
Wind Direction in May
The growing season in Valloire typically lasts for 2.7 months (82 days), from around June 16 to around September 6, rarely starting before May 23 or after July 11, and rarely ending before August 7 or after October 1.
The month of May in Valloire is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season increasing from 1% to 19% 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 Valloire are essentially constant during May, remaining within 13°F of 18°F throughout.
Growing Degree Days in May
The average daily incident shortwave solar energy in Valloire is gradually increasing during May, rising by 0.8 kWh, from 6.0 kWh to 6.8 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 Valloire are 45.166 deg latitude, 6.430 deg longitude, and 6,407 ft elevation.
The topography within 2 miles of Valloire contains extreme variations in elevation, with a maximum elevation change of 4,360 feet and an average elevation above sea level of 6,005 feet. Within 10 miles also contains extreme variations in elevation (9,741 feet). Within 50 miles also contains extreme variations in elevation (12,684 feet).
The area within 2 miles of Valloire is covered by grassland (46%) and trees (36%), within 10 miles by grassland (30%) and bare soil (23%), and within 50 miles by trees (38%) and grassland (24%).
This report illustrates the typical weather in Valloire 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 Valloire.
For each station, the records are corrected for the elevation difference between that station and Valloire 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 Valloire is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Valloire and a given station.
The stations contributing to this reconstruction are: Chambéry Airport (20%, 68 kilometers, northwest); Aosta Airport (23%, 96 kilometers, northeast); Turin Caselle Airport (19%, 96 kilometers, east); Cuneo International Airport (19%, 117 kilometers, southeast); and Château-Arnoux-Saint-Auban Airport (19%, 127 kilometers, south).
Time zones for aiports and weather stations are provided by AskGeo.com .