Average Weather in December in Avio Italy
Daily high temperatures decrease by 4°F, from 41°F to 37°F, rarely falling below 29°F or exceeding 47°F.
Daily low temperatures decrease by 5°F, from 30°F to 25°F, rarely falling below 17°F or exceeding 39°F.
For reference, on July 26, the hottest day of the year, temperatures in Avio typically range from 59°F to 76°F, while on January 12, the coldest day of the year, they range from 25°F to 36°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 Avio experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 49% throughout the month.
The clearest day of the month is December 20, with clear, mostly clear, or partly cloudy conditions 53% of the time.
For reference, on May 2, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 55%, while on July 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 73%.
Cloud Cover Categories in December
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Avio, the chance of a wet day over the course of December is essentially constant, remaining around 18% throughout.
For reference, the year's highest daily chance of a wet day is 34% on June 14, and its lowest chance is 14% on January 22.
Over the course of December in Avio, the chance of a day with only rain decreases from 17% to 10%, the chance of a day with mixed snow and rain remains an essentially constant 2% throughout, and the chance of a day with only snow increases from 1% to 4%.
Probability of Precipitation in December
The average sliding 31-day rainfall during December in Avio is decreasing, starting the month at 2.1 inches, when it rarely exceeds 4.4 inches or falls below 0.2 inches, and ending the month at 1.1 inches, when it rarely exceeds 2.6 inches.
Average Monthly Rainfall in December
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 December in Avio is essentially constant, remaining about 0.2 inches throughout, and rarely exceeding 1.0 inches or falling to 0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in December
Over the course of December in Avio, the length of the day is essentially constant. The shortest day of the month is December 22, with 8 hours, 40 minutes of daylight and the longest day is December 1, with 8 hours, 57 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Avio is 7:36 AM on December 1 and the latest sunrise is 21 minutes later at 7:57 AM on December 31.
The earliest sunset is 4:31 PM on December 10 and the latest sunset is 10 minutes later at 4:41 PM on December 31.
Daylight saving time is observed in Avio during 2018, but it neither starts nor ends during December, so the entire month is in standard time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:26 AM and sets 15 hours, 43 minutes later, at 9:09 PM, while on December 21, the shortest day of the year, it rises at 7:54 AM and sets 8 hours, 40 minutes later, at 4:34 PM.
Sunrise & Sunset with Twilight in December
The chance that a given day will be muggy in Avio is essentially constant during December, remaining around 0% throughout.
For reference, on July 27, the muggiest day of the year, there are muggy conditions 10% of the time, while on October 7, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in December
The average hourly wind speed in Avio is essentially constant during December, remaining around 3.8 miles per hour throughout.
For reference, on April 6, 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 3.7 miles per hour.
The lowest daily average wind speed during December is 3.8 miles per hour on December 18.
Average Wind Speed in December
Wind Direction in December
The growing season in Avio typically lasts for 6.9 months (210 days), from around April 10 to around November 7, rarely starting before March 20 or after April 30, and rarely ending before October 18 or after November 26.
The month of December in Avio is very likely fully outside of the growing season, with the chance that a given day is in the growing season gradually decreasing from 4% to 0% 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 Avio are essentially constant during December, remaining around 2,054°F throughout.
Growing Degree Days in December
The average daily incident shortwave solar energy in Avio is essentially constant during December, remaining within 0.1 kWh of 1.5 kWh throughout.
The lowest average daily incident shortwave solar energy during December is 1.4 kWh on December 16.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Avio are 45.734 deg latitude, 10.939 deg longitude, and 2,694 ft elevation.
The topography within 2 miles of Avio contains extreme variations in elevation, with a maximum elevation change of 4,498 feet and an average elevation above sea level of 1,736 feet. Within 10 miles also contains extreme variations in elevation (7,077 feet). Within 50 miles also contains extreme variations in elevation (12,133 feet).
The area within 2 miles of Avio is covered by trees (74%) and cropland (21%), within 10 miles by trees (58%) and grassland (18%), and within 50 miles by trees (39%) and cropland (38%).
This report illustrates the typical weather in Avio 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 Avio.
For each station, the records are corrected for the elevation difference between that station and Avio 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 Avio is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Avio and a given station.
The stations contributing to this reconstruction are: Verona Villafranca Airport (48%, 38 kilometers, south); Paganella (meteorological station) (23%, 47 kilometers, north); and Istrana (29%, 89 kilometers, east).
Time zones for aiports and weather stations are provided by AskGeo.com .