Average Weather in May in Annecy-le-Vieux France
Daily high temperatures increase by 7°F, from 63°F to 70°F, rarely falling below 52°F or exceeding 80°F.
Daily low temperatures increase by 6°F, from 44°F to 50°F, rarely falling below 36°F or exceeding 57°F.
For reference, on August 4, the hottest day of the year, temperatures in Annecy-le-Vieux typically range from 58°F to 79°F, while on January 15, the coldest day of the year, they range from 28°F to 40°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 Annecy-le-Vieux experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 55% throughout the month. The highest chance of overcast or mostly cloudy conditions is 57% on May 8.
The clearest day of the month is May 31, with clear, mostly clear, or partly cloudy conditions 47% of the time.
For reference, on December 31, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 58%, while on July 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 69%.
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 Annecy-le-Vieux, the chance of a wet day over the course of May is increasing, starting the month at 33% and ending it at 37%.
For reference, the year's highest daily chance of a wet day is 38% 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 Annecy-le-Vieux is gradually increasing, starting the month at 3.0 inches, when it rarely exceeds 5.1 inches or falls below 1.1 inches, and ending the month at 3.4 inches, when it rarely exceeds 5.2 inches or falls below 1.4 inches.
The highest average 31-day accumulation is 3.4 inches on May 28.
Average Monthly Rainfall in May
Over the course of May in Annecy-le-Vieux, 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, 8 minutes, implying an average daily increase of 2 minutes, 17 seconds, and weekly increase of 15 minutes, 57 seconds.
The shortest day of the month is May 1, with 14 hours, 19 minutes of daylight and the longest day is May 31, with 15 hours, 28 minutes of daylight.
Hours of Daylight and Twilight in May
The latest sunrise of the month in Annecy-le-Vieux is 6:23 AM on May 1 and the earliest sunrise is 34 minutes earlier at 5:49 AM on May 31.
The earliest sunset is 8:42 PM on May 1 and the latest sunset is 35 minutes later at 9:17 PM on May 31.
Daylight saving time is observed in Annecy-le-Vieux 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 5:44 AM and sets 15 hours, 45 minutes later, at 9:29 PM, while on December 22, the shortest day of the year, it rises at 8:14 AM and sets 8 hours, 39 minutes later, at 4:53 PM.
Sunrise & Sunset with Twilight in May
The chance that a given day will be muggy in Annecy-le-Vieux is essentially constant during May, remaining around 0% throughout.
For reference, on July 25, the muggiest day of the year, there are muggy conditions 3% 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 Annecy-le-Vieux is essentially constant during May, remaining within 0.1 miles per hour of 5.1 miles per hour throughout.
For reference, on April 3, the windiest day of the year, the daily average wind speed is 5.5 miles per hour, while on August 12, the calmest day of the year, the daily average wind speed is 4.7 miles per hour.
Average Wind Speed in May
Wind Direction in May
The growing season in Annecy-le-Vieux typically lasts for 6.6 months (202 days), from around April 12 to around October 31, rarely starting before March 20 or after May 2, and rarely ending before October 12 or after November 20.
The month of May in Annecy-le-Vieux is more likely than not fully within the growing season, with the chance that a given day is in the growing season increasing from 89% 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 Annecy-le-Vieux are increasing during May, increasing by 241°F, from 158°F to 398°F, over the course of the month.
Growing Degree Days in May
The average daily incident shortwave solar energy in Annecy-le-Vieux is gradually increasing during May, rising by 0.9 kWh, from 5.6 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 Annecy-le-Vieux are 45.920 deg latitude, 6.144 deg longitude, and 1,627 ft elevation.
The topography within 2 miles of Annecy-le-Vieux contains large variations in elevation, with a maximum elevation change of 2,467 feet and an average elevation above sea level of 1,657 feet. Within 10 miles contains large variations in elevation (6,604 feet). Within 50 miles also contains extreme variations in elevation (15,098 feet).
The area within 2 miles of Annecy-le-Vieux is covered by artificial surfaces (57%), trees (19%), and cropland (11%), within 10 miles by trees (40%) and cropland (24%), and within 50 miles by trees (42%) and grassland (19%).
This report illustrates the typical weather in Annecy-le-Vieux 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Annecy-le-Vieux.
For each station, the records are corrected for the elevation difference between that station and Annecy-le-Vieux 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 Annecy-le-Vieux is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Annecy-le-Vieux and a given station.
Time zones for aiports and weather stations are provided by AskGeo.com .