July Weather at Clinton, B. C. CanadaDaily high temperatures increase by 5°F, from 71°F to 76°F, rarely falling below 61°F or exceeding 87°F. Daily low temperatures increase by 2°F, from 47°F to 49°F, rarely falling below 40°F or exceeding 56°F. The highest daily average low temperature is 49°F on July 24. For reference, on August 2, the hottest day of the year, temperatures at Clinton, B. C. typically range from 49°F to 76°F, while on December 31, the coldest day of the year, they range from 14°F to 24°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. CloudsThe month of July at Clinton, B. C. experiences rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 47% to 34%. The clearest day of the month is July 31, with clear, mostly clear, or partly cloudy conditions 66% of the time. For reference, on January 15, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 72%, while on August 4, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 66%. PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Clinton, B. C., the chance of a wet day over the course of July is rapidly decreasing, starting the month at 22% and ending it at 16%. For reference, the year's highest daily chance of a wet day is 24% on June 21, and its lowest chance is 8% on April 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 Clinton, B. C. is gradually decreasing, starting the month at 1.3 inches, when it rarely exceeds 2.7 inches or falls below 0.5 inches, and ending the month at 1.0 inches, when it rarely exceeds 2.0 inches or falls below 0.3 inches. SunOver the course of July at Clinton, B. C., the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 6 minutes, implying an average daily decrease of 2 minutes, 13 seconds, and weekly decrease of 15 minutes, 29 seconds. The shortest day of the month is July 31, with 15 hours, 22 minutes of daylight and the longest day is July 1, with 16 hours, 29 minutes of daylight. The earliest sunrise of the month at Clinton, B. C. is 4:55 AM on July 1 and the latest sunrise is 35 minutes later at 5:30 AM on July 31. The latest sunset is 9:24 PM on July 1 and the earliest sunset is 31 minutes earlier at 8:53 PM on July 31. Daylight saving time is observed at Clinton, B. C. 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 4:50 AM and sets 16 hours, 35 minutes later, at 9:25 PM, while on December 21, the shortest day of the year, it rises at 8:07 AM and sets 7 hours, 53 minutes later, at 4:01 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 Clinton, B. C. is essentially constant during July, remaining around 0% throughout. 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 Clinton, B. C. is essentially constant during July, remaining within 0.1 miles per hour of 3.4 miles per hour throughout. For reference, on December 4, the windiest day of the year, the daily average wind speed is 4.1 miles per hour, while on August 1, the calmest day of the year, the daily average wind speed is 3.3 miles per hour. The wind direction at Clinton, B. C. during July is predominantly out of the south from July 1 to July 2 and the west from July 2 to July 31. 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 Clinton, B. C. typically lasts for 3.7 months (113 days), from around May 22 to around September 12, rarely starting before May 3 or after June 12, and rarely ending before August 25 or after October 1. The month of July at Clinton, B. C. 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 at Clinton, B. C. are increasing during July, increasing by 339°F, from 371°F to 711°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 Clinton, B. C. is essentially constant during July, remaining within 0.1 kWh of 6.7 kWh throughout. The highest average daily incident shortwave solar energy during July is 6.8 kWh on July 15. TopographyFor the purposes of this report, the geographical coordinates of Clinton, B. C. are 51.150 deg latitude, -121.500 deg longitude, and 3,422 ft elevation. The topography within 2 miles of Clinton, B. C. contains very significant variations in elevation, with a maximum elevation change of 1,699 feet and an average elevation above sea level of 3,289 feet. Within 10 miles contains very significant variations in elevation (4,675 feet). Within 50 miles also contains extreme variations in elevation (8,921 feet). The area within 2 miles of Clinton, B. C. is covered by trees (37%), sparse vegetation (32%), and shrubs (30%), within 10 miles by trees (60%) and shrubs (22%), and within 50 miles by trees (65%) and sparse vegetation (16%). Data SourcesThis report illustrates the typical weather at Clinton, B. C., based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Temperature and Dew PointClinton, B. C. 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 Lytton, B. C.; Kamloops Auto; Kamloops Airport; Williams Lake Airport; Pemberton Automatic Weather Reporting System; Black Comb Mtn Base; Callaghan Valley; and Salmon Arm Automatic Weather Reporting System. 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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