Winter Weather in Hacienda La Calera ChileDaily high temperatures are around 63°F, rarely falling below 54°F or exceeding 73°F. The lowest daily average high temperature is 61°F on July 8. Daily low temperatures are around 44°F, rarely falling below 36°F or exceeding 52°F. The lowest daily average low temperature is 43°F on July 26. For reference, on January 5, the hottest day of the year, temperatures in Hacienda La Calera typically range from 54°F to 77°F, while on July 25, the coldest day of the year, they range from 43°F to 62°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. San Luis Obispo, United States (5,695 miles away); Grabouw, South Africa (5,013 miles); and Stutterheim, South Africa (5,488 miles) are the far-away foreign places with temperatures most similar to Hacienda La Calera (view comparison). CloudsThe winter in Hacienda La Calera experiences rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 54% to 40%. The clearest day of the winter is August 31, with clear, mostly clear, or partly cloudy conditions 60% of the time. For reference, on May 30, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 55%, while on January 31, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 93%. PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Hacienda La Calera, the chance of a wet day over the course of the winter is rapidly decreasing, starting the season at 17% and ending it at 11%. For reference, the year's highest daily chance of a wet day is 19% on July 14, and its lowest chance is 0% on January 9. 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 in Hacienda La Calera is rapidly decreasing, starting the season at 2.6 inches, when it rarely exceeds 6.2 inches or falls below 0.2 inches, and ending the season at 1.2 inches, when it rarely exceeds 2.8 inches. The highest average 31-day accumulation is 2.6 inches on June 8. SunOver the course of the winter in Hacienda La Calera, the length of the day is rapidly increasing. From the start to the end of the season, the length of the day increases by 1 hour, 18 minutes, implying an average daily increase of 51 seconds, and weekly increase of 5 minutes, 59 seconds. The shortest day of the winter is June 20, with 9 hours, 59 minutes of daylight and the longest day is August 31, with 11 hours, 25 minutes of daylight. The latest sunrise of the winter in Hacienda La Calera is 7:48 AM on June 30 and the earliest sunrise is 45 minutes earlier at 7:02 AM on August 31. The earliest sunset is 5:45 PM on June 10 and the latest sunset is 42 minutes later at 6:27 PM on August 31. Daylight saving time is observed in Hacienda La Calera during 2024, but it neither starts nor ends during the winter, so the entire season is in daylight saving time. For reference, on December 21, the longest day of the year, the Sun rises at 6:33 AM and sets 14 hours, 19 minutes later, at 8:52 PM, while on June 20, the shortest day of the year, it rises at 7:46 AM and sets 9 hours, 59 minutes later, at 5:46 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 in Hacienda La Calera is essentially constant during the winter, remaining around 0% throughout. The lowest chance of a muggy day during the winter is 0% on July 23. For reference, on January 31, the muggiest day of the year, there are muggy conditions 1% of the time, while on June 14, 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 in Hacienda La Calera is essentially constant during the winter, remaining within 0.2 miles per hour of 5.5 miles per hour throughout. For reference, on December 12, the windiest day of the year, the daily average wind speed is 7.7 miles per hour, while on May 20, the calmest day of the year, the daily average wind speed is 5.3 miles per hour. The hourly average wind direction in Hacienda La Calera throughout the winter is predominantly from the south, with a peak proportion of 54% on August 30. Water TemperatureHacienda La Calera 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 Hacienda La Calera is gradually decreasing during the winter, falling by 2°F, from 57°F to 55°F, over the course of the season. The lowest average surface water temperature during the winter is 55°F on August 19. 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). While it does not do so every year, freezing temperatures are seen in Hacienda La Calera over some winters. The day least likely to be in the growing season is July 15, with a 62% chance. 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 in Hacienda La Calera are very rapidly decreasing during the winter, decreasing by 3,028°F, from 3,285°F to 256°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 in Hacienda La Calera is rapidly increasing during the winter, rising by 1.8 kWh, from 2.8 kWh to 4.6 kWh, over the course of the season. The lowest average daily incident shortwave solar energy during the winter is 2.7 kWh on June 22. TopographyFor the purposes of this report, the geographical coordinates of Hacienda La Calera are -32.783 deg latitude, -71.217 deg longitude, and 666 ft elevation. The topography within 2 miles of Hacienda La Calera contains very significant variations in elevation, with a maximum elevation change of 1,391 feet and an average elevation above sea level of 814 feet. Within 10 miles contains very significant variations in elevation (6,473 feet). Within 50 miles also contains extreme variations in elevation (12,986 feet). The area within 2 miles of Hacienda La Calera is covered by shrubs (59%), trees (23%), and cropland (11%), within 10 miles by shrubs (51%) and trees (31%), and within 50 miles by water (31%) and shrubs (30%). Data SourcesThis report illustrates the typical weather in Hacienda La Calera, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Temperature and Dew PointThere are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Hacienda La Calera. For each station, the records are corrected for the elevation difference between that station and Hacienda La Calera 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 Hacienda La Calera is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Hacienda La Calera and a given station. The stations contributing to this reconstruction are:
To get a sense of how much these sources agree with each other, you can view a comparison of Hacienda La Calera and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data. 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. We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader. Please review our full terms contained on our Terms of Service page. |