Average Weather in December in Gennes France
Daily high temperatures decrease by 2°F, from 49°F to 46°F, rarely falling below 35°F or exceeding 57°F.
Daily low temperatures are around 37°F, rarely falling below 25°F or exceeding 48°F.
For reference, on August 3, the hottest day of the year, temperatures in Gennes typically range from 58°F to 78°F, while on February 8, the coldest day of the year, they range from 36°F to 47°F.
Average High and Low Temperature in December
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on December. 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 December
The month of December in Gennes experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 66% to 72%.
The clearest day of the month is December 1, with clear, mostly clear, or partly cloudy conditions 34% of the time.
For reference, on January 3, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 72%, while on July 23, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 66%.
Cloud Cover Categories in December
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 Gennes, the chance of a wet day over the course of December is increasing, starting the month at 27% and ending it at 32%.
For reference, the year's highest daily chance of a wet day is 32% on December 27, and its lowest chance is 16% on August 23.
Probability of Precipitation in December
The average sliding 31-day rainfall during December in Gennes is essentially constant, remaining about 2.1 inches throughout, and rarely exceeding 4.0 inches or falling below 0.6 inches.
The highest average 31-day accumulation is 2.2 inches on December 27.
Average Monthly Rainfall in December
Over the course of December in Gennes, the length of the day is essentially constant. The shortest day of the month is December 21, with 8 hours, 28 minutes of daylight and the longest day is December 1, with 8 hours, 45 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Gennes is 8:27 AM on December 1 and the latest sunrise is 21 minutes later at 8:48 AM on December 31.
The earliest sunset is 5:10 PM on December 10 and the latest sunset is 10 minutes later at 5:20 PM on December 31.
Daylight saving time is observed in Gennes during 2020, but it neither starts nor ends during December, so the entire month is in standard time.
For reference, on June 20, the longest day of the year, the Sun rises at 6:04 AM and sets 15 hours, 57 minutes later, at 10:01 PM, while on December 21, the shortest day of the year, it rises at 8:45 AM and sets 8 hours, 28 minutes later, at 5:13 PM.
Sunrise & Sunset with Twilight in December
The chance that a given day will be muggy in Gennes is essentially constant during December, remaining around 0% throughout.
For reference, on August 2, the muggiest day of the year, there are muggy conditions 6% of the time, while on October 21, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in December
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Gennes is gradually increasing during December, increasing from 10.5 miles per hour to 11.2 miles per hour over the course of the month.
For reference, on January 16, the windiest day of the year, the daily average wind speed is 11.2 miles per hour, while on August 4, the calmest day of the year, the daily average wind speed is 8.1 miles per hour.
Average Wind Speed in December
The hourly average wind direction in Gennes throughout December is predominantly from the south, with a peak proportion of 35% on December 29.
Wind Direction in December
The growing season in Gennes typically lasts for 7.5 months (231 days), from around March 27 to around November 13, rarely starting before February 25 or after April 18, and rarely ending before October 20 or after December 17.
The month of December in Gennes is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season decreasing from 22% to 3% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in December
The average accumulated growing degree days in Gennes are essentially constant during December, remaining within 10°F of 2,524°F throughout.
Growing Degree Days in December
The average daily incident shortwave solar energy in Gennes is essentially constant during December, remaining within 0.1 kWh of 1.1 kWh throughout.
The lowest average daily incident shortwave solar energy during December is 1.0 kWh on December 27.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Gennes are 47.340 deg latitude, -0.231 deg longitude, and 161 ft elevation.
The topography within 2 miles of Gennes contains only modest variations in elevation, with a maximum elevation change of 223 feet and an average elevation above sea level of 151 feet. Within 10 miles also contains only modest variations in elevation (338 feet). Within 50 miles contains only modest variations in elevation (1,066 feet).
The area within 2 miles of Gennes is covered by cropland (50%) and trees (27%), within 10 miles by cropland (66%) and trees (18%), and within 50 miles by cropland (59%) and grassland (21%).
This report illustrates the typical weather in Gennes 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Gennes.
For each station, the records are corrected for the elevation difference between that station and Gennes 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 Gennes is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Gennes and a given station.
The stations contributing to this reconstruction are: Angers – Loire Airport (49%, 25 kilometers, north); Angers-Avrillé (34%, 32 kilometers, northwest); Tours Val de Loire Airport (10%, 73 kilometers, east); and Poitiers–Biard Airport (7%, 93 kilometers, southeast).
Time zones for aiports and weather stations are provided by AskGeo.com .