Average Weather in December in Calenzano Italy
Daily high temperatures decrease by 4°F, from 54°F to 50°F, rarely falling below 42°F or exceeding 61°F.
Daily low temperatures decrease by 4°F, from 40°F to 36°F, rarely falling below 26°F or exceeding 50°F.
For reference, on August 5, the hottest day of the year, temperatures in Calenzano typically range from 66°F to 89°F, while on January 11, the coldest day of the year, they range from 36°F to 50°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 Calenzano experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 59% throughout the month.
The clearest day of the month is December 22, with clear, mostly clear, or partly cloudy conditions 43% of the time.
For reference, on November 25, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 62%, while on July 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 82%.
Cloud Cover Categories in December
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Calenzano, the chance of a wet day over the course of December is decreasing, starting the month at 27% and ending it at 21%.
For reference, the year's highest daily chance of a wet day is 31% on November 4, and its lowest chance is 13% on August 5.
Probability of Precipitation in December
The average sliding 31-day rainfall during December in Calenzano is decreasing, starting the month at 2.6 inches, when it rarely exceeds 4.8 inches or falls below 0.6 inches, and ending the month at 1.7 inches, when it rarely exceeds 3.5 inches or falls below 0.3 inches.
Average Monthly Rainfall in December
Over the course of December in Calenzano, the length of the day is essentially constant. The shortest day of the month is December 21, with 8 hours, 54 minutes of daylight and the longest day is December 1, with 9 hours, 10 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Calenzano is 7:29 AM on December 1 and the latest sunrise is 20 minutes later at 7:49 AM on December 31.
The earliest sunset is 4:37 PM on December 9 and the latest sunset is 10 minutes later at 4:47 PM on December 31.
Daylight saving time is observed in Calenzano 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 5:33 AM and sets 15 hours, 28 minutes later, at 9:01 PM, while on December 21, the shortest day of the year, it rises at 7:46 AM and sets 8 hours, 54 minutes later, at 4:40 PM.
Sunrise & Sunset with Twilight in December
The chance that a given day will be muggy in Calenzano is essentially constant during December, remaining around 0% throughout.
For reference, on August 7, the muggiest day of the year, there are muggy conditions 33% of the time, while on November 14, 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 Calenzano is essentially constant during December, remaining within 0.1 miles per hour of 7.1 miles per hour throughout.
For reference, on February 24, the windiest day of the year, the daily average wind speed is 7.5 miles per hour, while on August 10, the calmest day of the year, the daily average wind speed is 5.4 miles per hour.
The lowest daily average wind speed during December is 6.9 miles per hour on December 27.
Average Wind Speed in December
Wind Direction in December
Calenzano 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 Calenzano 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 Calenzano typically lasts for 8.4 months (257 days), from around March 12 to around November 25, rarely starting before February 12 or after April 5, and rarely ending before November 5 or after December 17.
The month of December in Calenzano 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 35% to 1% 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 Calenzano are essentially constant during December, remaining within 16°F of 4,095°F throughout.
Growing Degree Days in December
The average daily incident shortwave solar energy in Calenzano is essentially constant during December, remaining within 0.1 kWh of 1.4 kWh throughout.
The lowest average daily incident shortwave solar energy during December is 1.4 kWh on December 28.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Calenzano are 43.854 deg latitude, 11.166 deg longitude, and 203 ft elevation.
The topography within 2 miles of Calenzano contains very significant variations in elevation, with a maximum elevation change of 1,142 feet and an average elevation above sea level of 295 feet. Within 10 miles contains very significant variations in elevation (3,215 feet). Within 50 miles contains large variations in elevation (7,129 feet).
The area within 2 miles of Calenzano is covered by cropland (42%), artificial surfaces (36%), and trees (21%), within 10 miles by cropland (42%) and trees (36%), and within 50 miles by trees (49%) and cropland (41%).
This report illustrates the typical weather in Calenzano 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 Calenzano.
For each station, the records are corrected for the elevation difference between that station and Calenzano 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 Calenzano is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Calenzano and a given station.
The stations contributing to this reconstruction are: Florence Peretola Airport (95%, 5.9 kilometers, southeast); Monte Cimone (0.4%, 54 kilometers, northwest); Pisa International Airport (2.7%, 65 kilometers, west); and Bologna Guglielmo Marconi Airport (2.2%, 76 kilometers, north).
Time zones for aiports and weather stations are provided by AskGeo.com .