August Weather in San Miguel United StatesDaily high temperatures are around 91°F, rarely falling below 80°F or exceeding 102°F. The highest daily average high temperature is 92°F on August 1. Daily low temperatures decrease by 2°F, from 56°F to 54°F, rarely falling below 48°F or exceeding 62°F. For reference, on August 1, the hottest day of the year, temperatures in San Miguel typically range from 56°F to 92°F, while on December 29, the coldest day of the year, they range from 37°F to 59°F. The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on August. 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. Santiago, Chile (5,778 miles away) and Ceres, South Africa (10,182 miles) are the far-away foreign places with temperatures most similar to San Miguel (view comparison). CloudsThe month of August in San Miguel experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 8% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 8% on August 7. The clearest day of the month is August 7, with clear, mostly clear, or partly cloudy conditions 92% of the time. For reference, on February 17, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 48%, while on August 7, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 92%. PrecipitationSunOver the course of August in San Miguel, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 59 minutes, implying an average daily decrease of 1 minute, 59 seconds, and weekly decrease of 13 minutes, 50 seconds. The shortest day of the month is August 31, with 12 hours, 56 minutes of daylight and the longest day is August 1, with 13 hours, 55 minutes of daylight. The earliest sunrise of the month in San Miguel is 6:11 AM on August 1 and the latest sunrise is 23 minutes later at 6:34 AM on August 31. The latest sunset is 8:06 PM on August 1 and the earliest sunset is 36 minutes earlier at 7:30 PM on August 31. Daylight saving time is observed in San Miguel during 2024, but it neither starts nor ends during August, so the entire month is in standard time. For reference, on June 20, the longest day of the year, the Sun rises at 5:47 AM and sets 14 hours, 35 minutes later, at 8:22 PM, while on December 21, the shortest day of the year, it rises at 7:09 AM and sets 9 hours, 44 minutes later, at 4:53 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 August 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 San Miguel is essentially constant during August, remaining around 0% throughout. For reference, on September 13, the muggiest day of the year, there are muggy conditions 0% 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 in San Miguel is essentially constant during August, remaining within 0.1 miles per hour of 6.6 miles per hour throughout. For reference, on May 29, the windiest day of the year, the daily average wind speed is 8.6 miles per hour, while on September 9, the calmest day of the year, the daily average wind speed is 6.4 miles per hour. The hourly average wind direction in San Miguel throughout August is predominantly from the west, with a peak proportion of 67% on August 1. Water TemperatureSan Miguel 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 San Miguel is essentially constant during August, remaining around 59°F throughout. 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 in San Miguel typically lasts for 8.7 months (266 days), from around February 26 to around November 18, rarely starting before January 11 or after April 10, and rarely ending before October 26 or after December 9. The month of August in San Miguel is reliably fully within the growing season. 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 San Miguel are rapidly increasing during August, increasing by 594°F, from 2,138°F to 2,732°F, over the course of the month. 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 San Miguel is gradually decreasing during August, falling by 1.0 kWh, from 8.1 kWh to 7.1 kWh, over the course of the month. TopographyFor the purposes of this report, the geographical coordinates of San Miguel are 35.752 deg latitude, -120.696 deg longitude, and 633 ft elevation. The topography within 2 miles of San Miguel contains significant variations in elevation, with a maximum elevation change of 814 feet and an average elevation above sea level of 741 feet. Within 10 miles contains significant variations in elevation (1,801 feet). Within 50 miles contains very significant variations in elevation (5,863 feet). The area within 2 miles of San Miguel is covered by grassland (81%) and cropland (19%), within 10 miles by grassland (85%), and within 50 miles by grassland (46%) and shrubs (23%). Data SourcesThis report illustrates the typical weather in San Miguel, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in San Miguel. For each station, the records are corrected for the elevation difference between that station and San Miguel 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 San Miguel is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between San Miguel 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 San Miguel 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. |