Average Weather in December in Vilada Spain
In Vilada, the month of December is characterized by gradually falling daily high temperatures, with daily highs decreasing by 3°F, from 50°F to 47°F over the course of the month, and rarely exceeding 58°F or dropping below 38°F.
Daily low temperatures decrease by 3°F, from 32°F to 29°F, rarely falling below 21°F or exceeding 40°F.
For reference, on July 30, the hottest day of the year, temperatures in Vilada typically range from 58°F to 81°F, while on January 11, the coldest day of the year, they range from 29°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 Vilada experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 46% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 45% on December 24.
The clearest day of the month is December 24, with clear, mostly clear, or partly cloudy conditions 55% of the time.
For reference, on October 29, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 51%, while on July 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 80%.
Cloud Cover in December
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Vilada, the chance of a wet day over the course of December is gradually decreasing, starting the month at 15% and ending it at 13%.
For reference, the year's highest daily chance of a wet day is 23% on May 5, and its lowest chance is 12% on December 26.
Over the course of December in Vilada, the chance of a day with only rain decreases from 14% to 9%, the chance of a day with mixed snow and rain remains an essentially constant 1% throughout, and the chance of a day with only snow remains an essentially constant 1% throughout.
Probability of Precipitation in December
To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day rainfall during December in Vilada is decreasing, starting the month at 1.3 inches, when it rarely exceeds 3.1 inches or falls below 0.2 inches, and ending the month at 0.7 inches, when it rarely exceeds 1.9 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 Vilada is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.5 inches or falling below -0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in December
Over the course of December in Vilada, the length of the day is essentially constant. The shortest day of the month is December 21, with 9 hours, 6 minutes of daylight and the longest day is December 1, with 9 hours, 20 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Vilada is 8:01 AM on December 1 and the latest sunrise is 20 minutes later at 8:20 AM on December 31.
The earliest sunset is 5:20 PM on December 8 and the latest sunset is 10 minutes later at 5:30 PM on December 31.
Daylight saving time is observed in Vilada during 2017, 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 6:16 AM and sets 15 hours, 16 minutes later, at 9:31 PM, while on December 21, the shortest day of the year, it rises at 8:17 AM and sets 9 hours, 6 minutes later, at 5:23 PM.
Sunrise & Sunset with Twilight in December
We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.
The chance that a given day will be muggy in Vilada is essentially constant during December, remaining around 0% throughout.
For reference, on August 19, the muggiest day of the year, there are muggy conditions 1% 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
This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.
The average hourly wind speed in Vilada is essentially constant during December, remaining within 0.1 miles per hour of 3.3 miles per hour throughout.
For reference, on April 5, the windiest day of the year, the daily average wind speed is 3.6 miles per hour, while on August 27, the calmest day of the year, the daily average wind speed is 2.6 miles per hour.
Average Wind Speed in December
Wind Direction in December
Vilada 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 Vilada is gradually decreasing during December, falling by 3°F, from 60°F to 57°F, over the course of the month.
Average Water Temperature in December
This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.
The average daily incident shortwave solar energy in Vilada is essentially constant during December, remaining within 0.1 kWh of 2.0 kWh throughout.
The lowest average daily incident shortwave solar energy during December is 1.9 kWh on December 15.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Vilada are 42.137 deg latitude, 1.932 deg longitude, and 2,864 ft elevation.
The topography within 2 miles of Vilada contains large variations in elevation, with a maximum elevation change of 2,680 feet and an average elevation above sea level of 2,825 feet. Within 10 miles contains large variations in elevation (6,135 feet). Within 50 miles also contains extreme variations in elevation (10,180 feet).
The area within 2 miles of Vilada is covered by trees (84%) and cropland (12%), within 10 miles by trees (69%) and cropland (16%), and within 50 miles by trees (55%) and cropland (21%).
This report illustrates the typical weather in Vilada 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 Vilada.
For each station, the records are corrected for the elevation difference between that station and Vilada 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 Vilada is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Vilada and a given station.
The stations contributing to this reconstruction are: Aeroport de Girona - Costa Brava (27%, 73 kilometers, east); Barcelona–El Prat Airport (19%, 94 kilometers, south); Perpignan–Rivesaltes Airport (19%, 102 kilometers, northeast); Saint-Girons - Antichan (20%, 118 kilometers, northwest); and Carcassonne-Salvaza (16%, 124 kilometers, north).
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for aiports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.