Winter Weather at Venice Marco Polo Airport ItalyDaily high temperatures are around 47°F, rarely falling below 36°F or exceeding 58°F. The lowest daily average high temperature is 43°F on January 7. Daily low temperatures are around 35°F, rarely falling below 25°F or exceeding 46°F. The lowest daily average low temperature is 32°F on January 14. For reference, on August 2, the hottest day of the year, temperatures at Venice Marco Polo Airport typically range from 67°F to 83°F, while on January 14, the coldest day of the year, they range from 32°F to 44°F. The figure below shows you a compact characterization of the hourly average winter temperatures. 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. Clintwood, United States (4,663 miles away) and Lewes, United States (4,283 miles) are the far-away foreign places with temperatures most similar to Venice Marco Polo Airport (view comparison). CloudsThe winter at Venice Marco Polo Airport experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 53% to 48%. The clearest day of the winter is February 28, with clear, mostly clear, or partly cloudy conditions 52% of the time. For reference, on November 18, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 54%, while on July 30, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 74%. PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Venice Marco Polo Airport, the chance of a wet day over the course of the winter is decreasing, starting the season at 22% and ending it at 17%. For reference, the year's highest daily chance of a wet day is 32% on June 3, and its lowest chance is 15% on January 21. Over the course of the winter at Venice Marco Polo Airport, the chance of a day with only rain decreases from 21% to 16%, 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 0% throughout. RainfallTo show variation within the season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day. The average sliding 31-day rainfall during the winter at Venice Marco Polo Airport is decreasing, starting the season at 2.5 inches, when it rarely exceeds 4.8 inches or falls below 0.4 inches, and ending the season at 1.8 inches, when it rarely exceeds 4.0 inches or falls below 0.2 inches. The lowest average 31-day accumulation is 1.5 inches on January 19. SunOver the course of the winter at Venice Marco Polo Airport, the length of the day is very rapidly increasing. From the start to the end of the season, the length of the day increases by 2 hours, 8 minutes, implying an average daily increase of 1 minute, 26 seconds, and weekly increase of 10 minutes, 3 seconds. The shortest day of the winter is December 21, with 8 hours, 42 minutes of daylight and the longest day is February 28, with 11 hours, 6 minutes of daylight. The latest sunrise of the winter at Venice Marco Polo Airport is 7:50 AM on January 2 and the earliest sunrise is 1 hour, 0 minutes earlier at 6:50 AM on February 28. The earliest sunset is 4:27 PM on December 9 and the latest sunset is 1 hour, 29 minutes later at 5:56 PM on February 28. Daylight saving time is observed at Venice Marco Polo Airport during 2024, but it neither starts nor ends during the winter, so the entire season is in daylight saving time. For reference, on June 20, the longest day of the year, the Sun rises at 5:21 AM and sets 15 hours, 41 minutes later, at 9:02 PM, while on December 21, the shortest day of the year, it rises at 7:47 AM and sets 8 hours, 42 minutes later, at 4:30 PM. The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation. MoonThe figure below presents a compact representation of key lunar data for the winter of 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon. HumidityWe 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 at Venice Marco Polo Airport is essentially constant during the winter, remaining around 0% throughout. For reference, on August 4, the muggiest day of the year, there are muggy conditions 49% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time. WindThis 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 at Venice Marco Polo Airport is essentially constant during the winter, remaining within 0.3 miles per hour of 7.1 miles per hour throughout. For reference, on November 18, the windiest day of the year, the daily average wind speed is 7.4 miles per hour, while on August 10, the calmest day of the year, the daily average wind speed is 5.8 miles per hour. The lowest daily average wind speed during the winter is 6.9 miles per hour on December 28. The hourly average wind direction at Venice Marco Polo Airport throughout the winter is predominantly from the east, with a peak proportion of 49% on February 28. Water TemperatureVenice Marco Polo Airport 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 at Venice Marco Polo Airport is rapidly decreasing during the winter, falling by 8°F, from 57°F to 48°F, over the course of the season. The lowest average surface water temperature during the winter is 48°F on February 18. Growing SeasonDefinitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere). The growing season at Venice Marco Polo Airport typically lasts for 8.6 months (262 days), from around March 4 to around November 21, rarely starting before February 9 or after March 25, and rarely ending before October 30 or after December 17. The winter at Venice Marco Polo Airport is more likely than not fully outside of the growing season, with the chance that a given day is in the growing season reaching a low of 2% on January 9. Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F. The average accumulated growing degree days at Venice Marco Polo Airport are very rapidly decreasing during the winter, decreasing by 3,653°F, from 3,661°F to 8°F, over the course of the season. Solar EnergyThis 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 at Venice Marco Polo Airport is rapidly increasing during the winter, rising by 1.7 kWh, from 1.4 kWh to 3.1 kWh, over the course of the season. The lowest average daily incident shortwave solar energy during the winter is 1.3 kWh on December 27. TopographyFor the purposes of this report, the geographical coordinates of Venice Marco Polo Airport are 45.505 deg latitude, 12.341 deg longitude, and 16 ft elevation. The topography within 2 miles of Venice Marco Polo Airport is essentially flat, with a maximum elevation change of 66 feet and an average elevation above sea level of -4 feet. Within 10 miles is essentially flat (226 feet). Within 50 miles contains only modest variations in elevation (8,294 feet). The area within 2 miles of Venice Marco Polo Airport is covered by cropland (49%), water (26%), and artificial surfaces (17%), within 10 miles by cropland (46%) and water (35%), and within 50 miles by cropland (48%) and water (31%). Data SourcesThis report illustrates the typical weather at Venice Marco Polo Airport, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Temperature and Dew PointVenice Marco Polo Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required. In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations. The stations on which we may fall back include but are not limited to Treviso Airport, Istrana, Aviano Airport, Aviano Usaf, Udine / Rivolto, Passo Rolle, Trieste – Friuli Venezia Giulia Airport, and Dobbiaco. Other DataAll data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , 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 airports and weather stations are provided by AskGeo.com . Maps are © OpenStreetMap contributors. DisclaimerThe information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands. 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