Average Weather in September in Bonne-sur-Ménoge France
Daily high temperatures decrease by 9°F, from 73°F to 64°F, rarely falling below 56°F or exceeding 82°F.
Daily low temperatures decrease by 6°F, from 54°F to 48°F, rarely falling below 42°F or exceeding 60°F.
For reference, on August 4, the hottest day of the year, temperatures in Bonne-sur-Ménoge typically range from 58°F to 78°F, while on January 15, the coldest day of the year, they range from 28°F to 39°F.
Average High and Low Temperature in September
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on September. 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 September
The month of September in Bonne-sur-Ménoge experiences rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 39% to 51%.
The clearest day of the month is September 1, with clear, mostly clear, or partly cloudy conditions 61% 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 68%.
Cloud Cover Categories in September
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 Bonne-sur-Ménoge, the chance of a wet day over the course of September is essentially constant, remaining around 30% throughout.
For reference, the year's highest daily chance of a wet day is 40% on May 25, and its lowest chance is 26% on March 3.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Bonne-sur-Ménoge is gradually increasing, starting the month at 3.1 inches, when it rarely exceeds 5.3 inches or falls below 1.1 inches, and ending the month at 3.4 inches, when it rarely exceeds 6.3 inches or falls below 1.1 inches.
Average Monthly Rainfall in September
Over the course of September in Bonne-sur-Ménoge, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 33 minutes, implying an average daily decrease of 3 minutes, 13 seconds, and weekly decrease of 22 minutes, 30 seconds.
The shortest day of the month is September 30, with 11 hours, 45 minutes of daylight and the longest day is September 1, with 13 hours, 19 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Bonne-sur-Ménoge is 6:54 AM on September 1 and the latest sunrise is 37 minutes later at 7:31 AM on September 30.
The latest sunset is 8:13 PM on September 1 and the earliest sunset is 57 minutes earlier at 7:17 PM on September 30.
Daylight saving time is observed in Bonne-sur-Ménoge during 2018, but it neither starts nor ends during September, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:43 AM and sets 15 hours, 47 minutes later, at 9:29 PM, while on December 21, the shortest day of the year, it rises at 8:14 AM and sets 8 hours, 37 minutes later, at 4:51 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in September
The chance that a given day will be muggy in Bonne-sur-Ménoge is essentially constant during September, remaining around 0% throughout.
For reference, on July 8, 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 September
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Bonne-sur-Ménoge is essentially constant during September, remaining within 0.1 miles per hour of 5.4 miles per hour throughout.
For reference, on April 3, the windiest day of the year, the daily average wind speed is 6.1 miles per hour, while on August 10, the calmest day of the year, the daily average wind speed is 5.2 miles per hour.
Average Wind Speed in September
Wind Direction in September
The growing season in Bonne-sur-Ménoge typically lasts for 6.9 months (212 days), from around April 8 to around November 6, rarely starting before March 15 or after April 29, and rarely ending before October 17 or after November 27.
The month of September in Bonne-sur-Ménoge is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in September
The average accumulated growing degree days in Bonne-sur-Ménoge are increasing during September, increasing by 295°F, from 1,858°F to 2,153°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Bonne-sur-Ménoge is rapidly decreasing during September, falling by 1.6 kWh, from 5.4 kWh to 3.8 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in September
For the purposes of this report, the geographical coordinates of Bonne-sur-Ménoge are 46.166 deg latitude, 6.323 deg longitude, and 1,749 ft elevation.
The topography within 2 miles of Bonne-sur-Ménoge contains large variations in elevation, with a maximum elevation change of 2,566 feet and an average elevation above sea level of 1,897 feet. Within 10 miles contains large variations in elevation (4,905 feet). Within 50 miles also contains extreme variations in elevation (15,085 feet).
The area within 2 miles of Bonne-sur-Ménoge is covered by cropland (30%), trees (27%), artificial surfaces (26%), and grassland (17%), within 10 miles by trees (35%) and cropland (27%), and within 50 miles by trees (43%) and grassland (20%).
This report illustrates the typical weather in Bonne-sur-Ménoge 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 Bonne-sur-Ménoge.
For each station, the records are corrected for the elevation difference between that station and Bonne-sur-Ménoge 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 Bonne-sur-Ménoge is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Bonne-sur-Ménoge and a given station.
The stations contributing to this reconstruction are: Aéroport Genève-Cointrin (54%, 18 kilometers, northwest); Annecy-Meythet (28%, 32 kilometers, southwest); Sion (8%, 77 kilometers, east); Aosta Airport (6%, 93 kilometers, southeast); and Neuchatel (4.8%, 105 kilometers, northeast).
Time zones for aiports and weather stations are provided by AskGeo.com .