Average Weather in September in Dawson Creek Canada
Daily high temperatures decrease by 9°F, from 66°F to 56°F, rarely falling below 43°F or exceeding 77°F.
Daily low temperatures decrease by 7°F, from 46°F to 39°F, rarely falling below 29°F or exceeding 54°F.
For reference, on July 30, the hottest day of the year, temperatures in Dawson Creek typically range from 52°F to 73°F, while on January 11, the coldest day of the year, they range from 6°F to 19°F.
Average High and Low Temperature in September
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on September. 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 September
The month of September in Dawson Creek experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 51% to 56%.
The clearest day of the month is September 1, with clear, mostly clear, or partly cloudy conditions 49% of the time.
For reference, on February 20, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 71%, while on August 3, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 56%.
Cloud Cover Categories in September
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Dawson Creek, the chance of a wet day over the course of September is gradually decreasing, starting the month at 21% and ending it at 18%.
For reference, the year's highest daily chance of a wet day is 30% on June 21, and its lowest chance is 12% on April 6.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Dawson Creek is gradually decreasing, starting the month at 1.5 inches, when it rarely exceeds 3.2 inches or falls below 0.4 inches, and ending the month at 1.0 inches, when it rarely exceeds 1.8 inches or falls below 0.4 inches.
Average Monthly Rainfall in September
We report snowfall in liquid-equivalent terms. The actual depth of new snowfall is typically between 5 and 10 times the liquid-equivalent amount, assuming the ground is frozen. As with rainfall, we consider the liquid-equivalent snowfall accumulated over a sliding 31-day period centered around each day.
The average sliding 31-day liquid-equivalent snowfall during September in Dawson Creek is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.4 inches or falling below -0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in September
Over the course of September in Dawson Creek, 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, 12 minutes, implying an average daily decrease of 4 minutes, 33 seconds, and weekly decrease of 31 minutes, 53 seconds.
The shortest day of the month is September 30, with 11 hours, 36 minutes of daylight and the longest day is September 1, with 13 hours, 48 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Dawson Creek is 6:06 AM on September 1 and the latest sunrise is 56 minutes later at 7:02 AM on September 30.
The latest sunset is 7:54 PM on September 1 and the earliest sunset is 1 hour, 16 minutes earlier at 6:38 PM on September 30.
Daylight saving time is not observed in Dawson Creek during 2018.
For reference, on June 21, the longest day of the year, the Sun rises at 4:15 AM and sets 17 hours, 34 minutes later, at 9:49 PM, while on December 21, the shortest day of the year, it rises at 9:29 AM and sets 7 hours, 0 minutes later, at 4:29 PM.
Sunrise & Sunset with Twilight in September
The chance that a given day will be muggy in Dawson Creek is essentially constant during September, remaining around 0% throughout.
For reference, on July 22, 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 September
The average hourly wind speed in Dawson Creek is essentially constant during September, remaining within 0.2 miles per hour of 5.5 miles per hour throughout.
For reference, on April 13, the windiest day of the year, the daily average wind speed is 6.3 miles per hour, while on August 1, the calmest day of the year, the daily average wind speed is 5.0 miles per hour.
Average Wind Speed in September
Wind Direction in September
The growing season in Dawson Creek typically lasts for 4.5 months (138 days), from around May 9 to around September 24, rarely starting before April 19 or after May 28, and rarely ending before September 3 or after October 12.
During September in Dawson Creek, the chance that a given day is within the growing season is very rapidly decreasing falling from 92% to 34% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in September
The average accumulated growing degree days in Dawson Creek are gradually increasing during September, increasing by 122°F, from 1,056°F to 1,178°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Dawson Creek is rapidly decreasing during September, falling by 1.6 kWh, from 4.4 kWh to 2.8 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in September
For the purposes of this report, the geographical coordinates of Dawson Creek are 55.760 deg latitude, -120.240 deg longitude, and 2,290 ft elevation.
The topography within 2 miles of Dawson Creek contains only modest variations in elevation, with a maximum elevation change of 463 feet and an average elevation above sea level of 2,267 feet. Within 10 miles contains only modest variations in elevation (1,450 feet). Within 50 miles contains very significant variations in elevation (4,213 feet).
The area within 2 miles of Dawson Creek is covered by cropland (52%), sparse vegetation (28%), and artificial surfaces (19%), within 10 miles by cropland (58%) and trees (28%), and within 50 miles by trees (59%) and cropland (30%).
This report illustrates the typical weather in Dawson Creek 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 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Dawson Creek.
For each station, the records are corrected for the elevation difference between that station and Dawson Creek 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 Dawson Creek is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Dawson Creek and a given station.
The stations contributing to this reconstruction are: Fort St. John Airport (29%, 62 kilometers, northwest); Spirit River Auto Station, Alta (23%, 64 kilometers, east); Cleardale AGDM (25%, 68 kilometers, northeast); Beaverlodge (19%, 82 kilometers, southeast); and Mackenzie Airport (5%, 189 kilometers, west).
Time zones for aiports and weather stations are provided by AskGeo.com .