Average Weather in Cranbrook Canada
In Cranbrook, the summers are warm, the winters are freezing and snowy, and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 12°F to 81°F and is rarely below -9°F or above 91°F.
Based on the tourism score, the best time of year to visit Cranbrook for warm-weather activities is from mid July to mid August.
The warm season lasts for 3.0 months, from June 13 to September 11, with an average daily high temperature above 70°F. The hottest day of the year is August 3, with an average high of 81°F and low of 53°F.
The cold season lasts for 3.1 months, from November 16 to February 20, with an average daily high temperature below 36°F. The coldest day of the year is December 29, with an average low of 12°F and high of 24°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
Koprivshtitsa, Bulgaria (5,635 miles away); Kale, Turkey (6,121 miles); and Aydarken, Kyrgyzstan (6,249 miles) are the far-away foreign places with temperatures most similar to Cranbrook (view comparison).
In Cranbrook, 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 Cranbrook begins around June 20 and lasts for 3.7 months, ending around October 10. On July 28, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 75% of the time, and overcast or mostly cloudy 25% of the time.
The cloudier part of the year begins around October 10 and lasts for 8.3 months, ending around June 20. On January 9, the cloudiest day of the year, the sky is overcast or mostly cloudy 66% of the time, and clear, mostly clear, or partly cloudy 34% of the time.
Cloud Cover Categories
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Cranbrook varies throughout the year.
The wetter season lasts 8.1 months, from November 2 to July 4, with a greater than 23% chance of a given day being a wet day. The chance of a wet day peaks at 34% on June 4.
The drier season lasts 3.9 months, from July 4 to November 2. The smallest chance of a wet day is 13% on August 11.
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 Cranbrook changes throughout the year.
Rain alone is the most common for 9.1 months, from February 22 to November 25. The highest chance of a day with rain alone is 33% on June 4.
Snow alone is the most common for 2.9 months, from November 25 to February 22. The highest chance of a day with snow alone is 14% on December 16.
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 of the year. Cranbrook experiences some seasonal variation in monthly rainfall.
The rainy period of the year lasts for 9.2 months, from March 3 to December 11, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around June 8, with an average total accumulation of 2.1 inches.
The rainless period of the year lasts for 2.8 months, from December 11 to March 3. The least rain falls around January 19, with an average total accumulation of 0.3 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 of the year. Cranbrook experiences some seasonal variation in monthly liquid-equivalent snowfall.
The snowy period of the year lasts for 5.5 months, from October 17 to April 3, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around December 11, with an average total liquid-equivalent accumulation of 0.7 inches.
The snowless period of the year lasts for 6.5 months, from April 3 to October 17. The least snow falls around July 17, with an average total liquid-equivalent accumulation of 0.0 inches.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Cranbrook varies extremely over the course of the year. In 2021, the shortest day is December 21, with 8 hours, 9 minutes of daylight; the longest day is June 20, with 16 hours, 17 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 5:35 AM on June 16, and the latest sunrise is 3 hours, 5 minutes later at 8:40 AM on November 6. The earliest sunset is at 4:43 PM on December 11, and the latest sunset is 5 hours, 11 minutes later at 9:53 PM on June 25.
Daylight saving time (DST) is observed in Cranbrook during 2021, starting in the spring on March 14, lasting 7.8 months, and ending in the fall on November 7.
Sunrise & Sunset with Twilight and Daylight Saving Time
The figure below presents a compact representation of key lunar data for 2021. 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.
Moon Rise, Set & Phases
The perceived humidity level in Cranbrook, 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, remaining a virtually constant 0% throughout.
Humidity Comfort Levels
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Cranbrook does not vary significantly over the course of the year, remaining within 0.3 miles per hour of 3.7 miles per hour throughout.
Average Wind Speed
The predominant average hourly wind direction in Cranbrook varies throughout the year.
The wind is most often from the west for 9.5 months, from January 17 to November 3, with a peak percentage of 50% on July 16. The wind is most often from the south for 2.5 months, from November 3 to January 17, with a peak percentage of 32% on January 1.
Best Time of Year to Visit
To characterize how pleasant the weather is in Cranbrook throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Cranbrook for general outdoor tourist activities is from mid July to mid August, with a peak score in the last week of July.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Cranbrook for hot-weather activities is from mid July to mid August, with a peak score in the last week of July.
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
The growing season in Cranbrook typically lasts for 4.4 months (135 days), from around May 14 to around September 26, rarely starting before April 27 or after June 1, and rarely ending before September 8 or after October 14.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Cranbrook should appear around May 10, only rarely appearing before April 28 or after May 24.
Growing Degree Days
The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 3.4 months, from May 7 to August 19, with an average daily incident shortwave energy per square meter above 6.1 kWh. The brightest day of the year is July 15, with an average of 7.3 kWh.
The darker period of the year lasts for 3.6 months, from October 26 to February 14, with an average daily incident shortwave energy per square meter below 2.3 kWh. The darkest day of the year is December 24, with an average of 1.1 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Cranbrook are 49.500 deg latitude, -115.769 deg longitude, and 3,107 ft elevation.
The topography within 2 miles of Cranbrook contains very significant variations in elevation, with a maximum elevation change of 902 feet and an average elevation above sea level of 3,225 feet. Within 10 miles contains very significant variations in elevation (4,760 feet). Within 50 miles also contains extreme variations in elevation (9,229 feet).
The area within 2 miles of Cranbrook is covered by shrubs (30%), sparse vegetation (29%), trees (22%), and artificial surfaces (16%), within 10 miles by trees (54%) and shrubs (29%), and within 50 miles by trees (71%) and shrubs (13%).
This report illustrates the typical weather in Cranbrook, 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 Cranbrook.
For each station, the records are corrected for the elevation difference between that station and Cranbrook 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 Cranbrook is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Cranbrook and a given station.
The stations contributing to this reconstruction are: Cranbrook/Canadian Rockies International Airport (92%, 13 kilometers, north); Creston Automatic Weather Reporting System (6%, 71 kilometers, southwest); and Glacier Park International Airport (1.9%, 173 kilometers, southeast).
Time zones for airports and weather stations are provided by AskGeo.com .