July Weather at Afton Municipal Airport United StatesDaily high temperatures increase by 3°F, from 76°F to 79°F, rarely falling below 67°F or exceeding 86°F. The highest daily average high temperature is 79°F on July 28. Daily low temperatures increase by 3°F, from 41°F to 44°F, rarely falling below 33°F or exceeding 51°F. The highest daily average low temperature is 44°F on July 30. For reference, on July 27, the hottest day of the year, temperatures at Afton Municipal Airport typically range from 44°F to 79°F, while on January 27, the coldest day of the year, they range from 5°F to 26°F. The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on July. 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. Karayazı, Turkey (6,507 miles away) is the far-away foreign place with temperatures most similar to Afton Municipal Airport (view comparison). CloudsThe month of July at Afton Municipal Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 22% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 21% on July 25. The clearest day of the month is July 25, with clear, mostly clear, or partly cloudy conditions 79% of the time. For reference, on March 1, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 55%, while on July 25, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 79%. PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Afton Municipal Airport, the chance of a wet day over the course of July is gradually increasing, starting the month at 13% and ending it at 15%. For reference, the year's highest daily chance of a wet day is 30% on May 21, and its lowest chance is 12% on July 4. RainfallTo 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 July at Afton Municipal Airport is essentially constant, remaining about 0.7 inches throughout, and rarely exceeding 1.8 inches or falling below 0.1 inches. The lowest average 31-day accumulation is 0.7 inches on July 10. SunOver the course of July at Afton Municipal Airport, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 46 minutes, implying an average daily decrease of 1 minute, 32 seconds, and weekly decrease of 10 minutes, 46 seconds. The shortest day of the month is July 31, with 14 hours, 30 minutes of daylight and the longest day is July 1, with 15 hours, 16 minutes of daylight. The earliest sunrise of the month at Afton Municipal Airport is 5:49 AM on July 1 and the latest sunrise is 25 minutes later at 6:15 AM on July 31. The latest sunset is 9:05 PM on July 1 and the earliest sunset is 21 minutes earlier at 8:44 PM on July 31. Daylight saving time is observed at Afton Municipal Airport during 2024, but it neither starts nor ends during July, so the entire month is in standard time. For reference, on June 20, the longest day of the year, the Sun rises at 5:45 AM and sets 15 hours, 20 minutes later, at 9:05 PM, while on December 21, the shortest day of the year, it rises at 7:51 AM and sets 9 hours, 2 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 July 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 Afton Municipal Airport is essentially constant during July, remaining around 0% throughout. For reference, on August 7, 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 at Afton Municipal Airport is essentially constant during July, remaining within 0.2 miles per hour of 4.7 miles per hour throughout. For reference, on March 29, the windiest day of the year, the daily average wind speed is 5.9 miles per hour, while on August 3, the calmest day of the year, the daily average wind speed is 4.5 miles per hour. The hourly average wind direction at Afton Municipal Airport throughout July is predominantly from the west, with a peak proportion of 49% on July 17. 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 Afton Municipal Airport typically lasts for 2.3 months (70 days), from around June 23 to around September 1, rarely starting before June 2 or after July 18, and rarely ending before August 1 or after September 21. The month of July at Afton Municipal Airport is more likely than not fully within the growing season, with the chance that a given day is in the growing season reaching a high of 91% on July 24. 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 Afton Municipal Airport are increasing during July, increasing by 351°F, from 357°F to 708°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 at Afton Municipal Airport is gradually decreasing during July, falling by 0.8 kWh, from 8.3 kWh to 7.5 kWh, over the course of the month. Data SourcesThis report illustrates the typical weather at Afton Municipal 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 PointAfton Municipal 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 Big Piney-Marbleton Airport; Jackson Hole Airport; Driggs, Driggs-Reed Memorial Airport; Ralph Wenz Field; Logan-Cache Airport; Fanning Field; Rexburg Airport; and Evanston-Uinta County Burns Field. 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. |