Average Weather in August in Grande Prairie Canada
Daily high temperatures decrease by 7°F, from 74°F to 68°F, rarely falling below 57°F or exceeding 85°F. The highest daily average high temperature is 75°F on August 4.
Daily low temperatures decrease by 6°F, from 51°F to 45°F, rarely falling below 37°F or exceeding 58°F.
For reference, on August 4, the hottest day of the year, temperatures in Grande Prairie typically range from 51°F to 75°F, while on January 10, the coldest day of the year, they range from 0°F to 17°F.
Average High and Low Temperature in August
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.
Average Hourly Temperature in August
The month of August in Grande Prairie experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 44% to 50%. The lowest chance of overcast or mostly cloudy conditions is 43% on August 3.
The clearest day of the month is August 3, with clear, mostly clear, or partly cloudy conditions 57% of the time.
For reference, on February 26, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 70%, while on August 3, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 57%.
Cloud Cover Categories in August
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Grande Prairie, the chance of a wet day over the course of August is essentially constant, remaining around 22% throughout.
For reference, the year's highest daily chance of a wet day is 32% on June 24, and its lowest chance is 11% on March 26.
Probability of Precipitation in August
The average sliding 31-day rainfall during August in Grande Prairie is gradually decreasing, starting the month at 2.1 inches, when it rarely exceeds 3.8 inches or falls below 0.6 inches, and ending the month at 1.6 inches, when it rarely exceeds 3.2 inches or falls below 0.5 inches.
Average Monthly Rainfall in August
Over the course of August in Grande Prairie, the length of the day is very rapidly decreasing. From the start to the end of the month, the length of the day decreases by 2 hours, 4 minutes, implying an average daily decrease of 4 minutes, 9 seconds, and weekly decrease of 29 minutes, 0 seconds.
The shortest day of the month is August 31, with 13 hours, 50 minutes of daylight and the longest day is August 1, with 15 hours, 55 minutes of daylight.
Hours of Daylight and Twilight in August
The earliest sunrise of the month in Grande Prairie is 6:03 AM on August 1 and the latest sunrise is 56 minutes later at 6:59 AM on August 31.
The latest sunset is 9:58 PM on August 1 and the earliest sunset is 1 hour, 8 minutes earlier at 8:49 PM on August 31.
Daylight saving time is observed in Grande Prairie during 2018, but it neither starts nor ends during August, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:14 AM and sets 17 hours, 25 minutes later, at 10:39 PM, while on December 21, the shortest day of the year, it rises at 9:19 AM and sets 7 hours, 8 minutes later, at 4:27 PM.
Sunrise & Sunset with Twilight in August
The chance that a given day will be muggy in Grande Prairie is essentially constant during August, remaining around 0% throughout.
For reference, on July 27, 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.
Humidity Comfort Levels in August
The average hourly wind speed in Grande Prairie is essentially constant during August, remaining within 0.2 miles per hour of 5.9 miles per hour throughout.
For reference, on April 13, the windiest day of the year, the daily average wind speed is 7.2 miles per hour, while on August 17, the calmest day of the year, the daily average wind speed is 5.8 miles per hour.
The lowest daily average wind speed during August is 5.8 miles per hour on August 17.
Average Wind Speed in August
Wind Direction in August
The growing season in Grande Prairie typically lasts for 4.1 months (128 days), from around May 13 to around September 18, rarely starting before April 26 or after May 31, and rarely ending before August 27 or after October 6.
The month of August in Grande Prairie is more likely than not fully within the growing season, with the chance that a given day is in the growing season decreasing from 99% to 87% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in August
The average accumulated growing degree days in Grande Prairie are increasing during August, increasing by 311°F, from 831°F to 1,142°F, over the course of the month.
Growing Degree Days in August
The average daily incident shortwave solar energy in Grande Prairie is decreasing during August, falling by 1.5 kWh, from 5.9 kWh to 4.4 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in August
For the purposes of this report, the geographical coordinates of Grande Prairie are 55.167 deg latitude, -118.803 deg longitude, and 2,162 ft elevation.
The topography within 2 miles of Grande Prairie contains only modest variations in elevation, with a maximum elevation change of 174 feet and an average elevation above sea level of 2,164 feet. Within 10 miles contains only modest variations in elevation (879 feet). Within 50 miles contains very significant variations in elevation (3,353 feet).
The area within 2 miles of Grande Prairie is covered by sparse vegetation (52%), artificial surfaces (28%), and cropland (20%), within 10 miles by cropland (42%) and sparse vegetation (27%), and within 50 miles by trees (61%) and cropland (27%).
This report illustrates the typical weather in Grande Prairie year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Grande Prairie.
For each station, the records are corrected for the elevation difference between that station and Grande Prairie 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 Grande Prairie is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Grande Prairie and a given station.
The stations contributing to this reconstruction are: Grande Prairie Airport (96%, 5.4 kilometers, west); Peoria AGDM (2.7%, 60 kilometers, northeast); and High Prairie Airport (1.2%, 104 kilometers, east).
Time zones for aiports and weather stations are provided by AskGeo.com .