Average Weather in December in Vignola Italy
Daily high temperatures decrease by 5°F, from 47°F to 43°F, rarely falling below 35°F or exceeding 54°F.
Daily low temperatures decrease by 5°F, from 37°F to 32°F, rarely falling below 25°F or exceeding 45°F.
For reference, on August 3, the hottest day of the year, temperatures in Vignola typically range from 67°F to 87°F, while on January 12, the coldest day of the year, they range from 32°F to 42°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 Vignola experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 51% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 48% on December 21.
The clearest day of the month is December 21, with clear, mostly clear, or partly cloudy conditions 52% of the time.
For reference, on November 25, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 53%, while on July 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 80%.
Cloud Cover Categories in December
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Vignola, the chance of a wet day over the course of December is gradually decreasing, starting the month at 23% and ending it at 20%.
For reference, the year's highest daily chance of a wet day is 29% on November 3, and its lowest chance is 17% on August 4.
Over the course of December in Vignola, the chance of a day with only rain decreases from 22% to 16%, 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 remains an essentially constant 1% throughout.
Probability of Precipitation in December
The average sliding 31-day rainfall during December in Vignola is decreasing, starting the month at 2.1 inches, when it rarely exceeds 4.1 inches or falls below 0.4 inches, and ending the month at 1.3 inches, when it rarely exceeds 2.9 inches or falls below 0.1 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 Vignola is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.6 inches or falling below -0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in December
Over the course of December in Vignola, the length of the day is essentially constant. The shortest day of the month is December 21, with 8 hours, 50 minutes of daylight and the longest day is December 1, with 9 hours, 6 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Vignola is 7:31 AM on December 1 and the latest sunrise is 20 minutes later at 7:52 AM on December 31.
The earliest sunset is 4:36 PM on December 10 and the latest sunset is 10 minutes later at 4:45 PM on December 31.
Daylight saving time is observed in Vignola 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 5:31 AM and sets 15 hours, 33 minutes later, at 9:04 PM, while on December 21, the shortest day of the year, it rises at 7:49 AM and sets 8 hours, 50 minutes later, at 4:38 PM.
Sunrise & Sunset with Twilight in December
The chance that a given day will be muggy in Vignola is essentially constant during December, remaining around 0% throughout.
For reference, on August 7, the muggiest day of the year, there are muggy conditions 24% 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 December
The average hourly wind speed in Vignola is essentially constant during December, remaining within 0.1 miles per hour of 6.4 miles per hour throughout.
For reference, on April 1, the windiest day of the year, the daily average wind speed is 7.3 miles per hour, while on August 10, the calmest day of the year, the daily average wind speed is 5.8 miles per hour.
Average Wind Speed in December
Wind Direction in December
Vignola is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average surface water temperature in Vignola is gradually decreasing during December, falling by 3°F, from 62°F to 58°F, over the course of the month.
Average Water Temperature in December
The growing season in Vignola typically lasts for 8.5 months (261 days), from around March 9 to around November 25, rarely starting before February 6 or after April 2, and rarely ending before November 4 or after December 20.
The month of December in Vignola is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season rapidly decreasing from 38% to 4% 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 Vignola are essentially constant during December, remaining within 4°F of 3,737°F throughout.
Growing Degree Days in December
The average daily incident shortwave solar energy in Vignola 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 1.5 kWh on December 15.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Vignola are 44.484 deg latitude, 11.011 deg longitude, and 413 ft elevation.
The topography within 2 miles of Vignola contains significant variations in elevation, with a maximum elevation change of 620 feet and an average elevation above sea level of 400 feet. Within 10 miles contains significant variations in elevation (2,720 feet). Within 50 miles contains large variations in elevation (7,129 feet).
The area within 2 miles of Vignola is covered by cropland (71%) and artificial surfaces (22%), within 10 miles by cropland (69%) and trees (21%), and within 50 miles by cropland (59%) and trees (32%).
This report illustrates the typical weather in Vignola 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 Vignola.
For each station, the records are corrected for the elevation difference between that station and Vignola 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 Vignola is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Vignola and a given station.
The stations contributing to this reconstruction are: Bologna Guglielmo Marconi Airport (73%, 23 kilometers, east); Monte Cimone (2.9%, 40 kilometers, southwest); Parma Airport (16%, 68 kilometers, northwest); and Verona Villafranca Airport (9%, 102 kilometers, north).
Time zones for aiports and weather stations are provided by AskGeo.com .