Average Weather in Edmonton Canada
Edmonton has a cold semi-arid steppe climate. The temperature typically varies from 6°F to 75°F over the course of the year, and is rarely below -16°F or above 84°F.
The warm season lasts for 125 days, from May 15 to September 17, with an average daily high temperature above 64°F. The hottest day of the year is July 25, with an average high of 75°F and low of 55°F.
The cold season lasts for 105 days, from November 18 to March 3, with an average daily high temperature below 31°F. The coldest day of the year is January 1, with an average low of 6°F and high of 20°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature
The length of the day in Edmonton varies extremely over the course of the year. In 2017, the shortest day is December 21, with 7 hours, 28 minutes of daylight; the longest day is June 21, with 17 hours, 3 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:03 AM on June 17, and the latest sunrise is 3 hours, 47 minutes later at 8:50 AM on December 29. The earliest sunset is at 4:13 PM on December 13, and the latest sunset is 5 hours, 54 minutes later at 10:07 PM on June 24.
Daylight saving time (DST) is observed in Edmonton during 2017, starting in the spring on March 12, lasting 237 days, and ending in the fall on November 5.
Sunrise & Sunset with Twilight and Daylight Saving Time
In Edmonton, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year in Edmonton begins around June 15 and lasts for 123 days, ending around October 16. On August 5, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 61% of the time, and overcast or mostly cloudy 39% of the time.
The cloudier part of the year begins around October 16 and lasts for 242 days, ending around June 15. On February 20, the cloudiest day of the year, the sky is overcast or mostly cloudy 68% of the time, and clear, mostly clear, or partly cloudy 32% of the time.
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Edmonton varies significantly throughout the year.
The wetter season lasts 115 days, from May 13 to September 5, with a greater than 20% chance of a given day being a wet day. The chance of a wet day peaks at 35% on July 4.
The drier season lasts 250 days, from September 5 to May 13. The smallest chance of a wet day is 5% on February 13.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation in Edmonton changes throughout the year.
Rain alone is the most common for 227 days, from March 24 to November 6. The highest chance of a day with rain alone is 35% on July 4.
Snow alone is the most common for 138 days, from November 6 to March 24. The highest chance of a day with snow alone is 9% on January 10.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day in the year. Edmonton experiences significant seasonal variation in monthly rainfall.
The rainy period of the year lasts for 189 days, from April 6 to October 12, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around July 3, with an average total accumulation of 2.9 inches.
The rainless period of the year lasts for 176 days, from October 12 to April 6. The least rain falls around December 31, with and average total accumulation of 0.0 inches.
Average Monthly Rainfall
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. Colder, drier snow tends to be on the higher end of that range and warmer, wetter snow on the lower end.
As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day in the year. Edmonton experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 205 days, from October 9 to May 2, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around March 12, with an average total liquid-equivalent accumulation of 0.3 inches.
The snowless period of the year lasts for 160 days, from May 2 to October 9. The least snow falls around July 21, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
We 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 perceived humidity level in Edmonton, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 1% of 1% throughout.
Humidity Comfort Levels
This 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 Edmonton experiences mildly seasonal variation over the course of the year.
The windier part of the year lasts for 259 days, from September 15 to June 1, with average wind speeds of more than 4.9 miles per hour. The windiest day of the year is January 30, with an average hourly wind speed of 5.6 miles per hour.
The calmer time of year lasts for 106 days, from June 1 to September 15. The calmest day of the year is August 2, with an average hourly wind speed of 4.3 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Edmonton is from the west throughout the year.
This 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 experiences very significant seasonal variation over the course of the year.
The brighter period of the year lasts for 114 days, from April 27 to August 19, with an average daily incident shortwave energy per square meter above 5.3 kWh. The brightest day of the year is July 10, with an average of 6.5 kWh.
The darker period of the year lasts for 113 days, from October 25 to February 15, with an average daily incident shortwave energy per square meter below 1.9 kWh. The darkest day of the year is December 21, with an average of 0.7 kWh.
Average Daily Incident Shortwave Solar Energy
The area within 2 miles of Edmonton is covered by artificial surfaces (92%), within 10 miles by cropland (52%) and artificial surfaces (39%), and within 50 miles by cropland (82%) and trees (11%).
The topography within 2 miles of Edmonton contains only modest variations in elevation, with a maximum elevation change of 285 feet, and an average elevation above sea level of 2,147 feet. Within 10 miles contains significant variations in elevation (548 feet). Within 50 miles contains very significant variations in elevation (1,266 feet).
This report illustrates the typical weather in Edmonton, 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 Edmonton.
For each station, the records are are corrected for the elevation difference between that station and Edmonton 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 Edmonton is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Edmonton and a given station.
The stations contributing to this reconstruction are: Edmonton Municipal CR10 , Alta. (84%, 3.7 kilometers, northwest), Oliver AGDM (12%, 14 kilometers, northeast), and Edmonton International Airport (4.1%, 28 kilometers, south).
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , 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 aiports and weather stations are provided by AskGeo.com .