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Average Weather in Cardston Canada

In Cardston, the summers are short and warm; the winters are long, freezing, snowy, and windy; and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 11°F to 79°F and is rarely below -15°F or above 89°F.

Based on the tourism score, the best time of year to visit Cardston for warm-weather activities is from early July to mid August.

Climate Summary

very coldcoldcoolwarmcoolcoldvery coldJanFebMarAprMayJunJulAugSepOctNovDecNowNow74%74%37%37%clearovercastprecipitation: 2.9 inprecipitation: 2.9 in0.4 in0.4 inmuggy: 0%muggy: 0%0%0%drydrytourism score: 5.9tourism score: 5.90.00.0
Click on each chart for more information.

Temperature

The warm season lasts for 2.9 months, from June 13 to September 10, with an average daily high temperature above 69°F. The hottest day of the year is August 4, with an average high of 79°F and low of 51°F.

The cold season lasts for 3.9 months, from November 15 to March 10, with an average daily high temperature below 41°F. The coldest day of the year is January 1, with an average low of 11°F and high of 31°F.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

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

Average Hourly Temperature in CardstonJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMNowNowfreezingfreezingvery coldvery coldcoldcoolcoolcomfortablewarm
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Koprivshtitsa, Bulgaria (5,599 miles away) and Evren, Turkey (6,040 miles) are the far-away foreign places with temperatures most similar to Cardston (view comparison).

Clouds

In Cardston, 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 Cardston begins around June 20 and lasts for 3.3 months, ending around September 29. On July 25, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 74% of the time, and overcast or mostly cloudy 26% of the time.

The cloudier part of the year begins around September 29 and lasts for 8.7 months, ending around June 20. On January 16, the cloudiest day of the year, the sky is overcast or mostly cloudy 63% of the time, and clear, mostly clear, or partly cloudy 37% of the time.

Cloud Cover Categories

Cloud Cover Categories in CardstonclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 2574%Jul 2574%Jan 1637%Jan 1637%Jun 2056%Jun 2056%Sep 2956%Sep 2956%NowNowclearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Cardston varies throughout the year.

The wetter season lasts 1.9 months, from May 7 to July 2, with a greater than 22% chance of a given day being a wet day. The chance of a wet day peaks at 33% on June 4.

The drier season lasts 10 months, from July 2 to May 7. The smallest chance of a wet day is 10% on February 3.

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 Cardston changes throughout the year.

Rain alone is the most common for 7.2 months, from March 29 to November 4. The highest chance of a day with rain alone is 32% on June 4.

Snow alone is the most common for 4.8 months, from November 4 to March 29. The highest chance of a day with snow alone is 11% on December 22.

Daily Chance of Precipitation

Daily Chance of Precipitation in CardstonsnowrainsnowJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jun 433%Jun 433%Feb 310%Feb 310%Mar 2916%Mar 2916%Nov 416%Nov 416%Jul 222%Jul 222%NowNowsnowrainmixed
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

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. Cardston experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 6.5 months, from April 4 to October 19, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around June 7, with an average total accumulation of 2.9 inches.

The rainless period of the year lasts for 5.5 months, from October 19 to April 4. The least rain falls around February 9, with an average total accumulation of 0.1 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Snowfall

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. Cardston experiences some seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 8.1 months, from September 22 to May 25, with a sliding 31-day liquid-equivalent snowfall of at least 0.1 inches. The most snow falls during the 31 days centered around November 22, with an average total liquid-equivalent accumulation of 0.5 inches.

The snowless period of the year lasts for 3.9 months, from May 25 to September 22. The least snow falls around July 14, with an average total liquid-equivalent accumulation of 0.0 inches.

Average Liquid-Equivalent Monthly Snowfall

Average Liquid-Equivalent Monthly Snowfall in CardstonsnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.5 in1.0 in1.5 in2.0 in2.5 in3.0 inNov 220.5 inNov 220.5 inJul 140.0 inJul 140.0 inMar 140.5 inMar 140.5 inSep 220.1 inSep 220.1 inMay 250.1 inMay 250.1 inNowNow
The average liquid-equivalent snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.

Sun

The length of the day in Cardston varies extremely over the course of the year. In 2020, the shortest day is December 21, with 8 hours, 12 minutes of daylight; the longest day is June 20, with 16 hours, 14 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight in CardstonJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 9 minMar 1912 hr, 9 minMar 1916 hr, 14 minJun 2016 hr, 14 minJun 2012 hr, 13 minSep 2212 hr, 13 minSep 228 hr, 12 minDec 218 hr, 12 minDec 21nightnightdayNowNow
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 5:27 AM on June 16, and the latest sunrise is 3 hours, 1 minute later at 8:28 AM on January 1. The earliest sunset is at 4:34 PM on December 11, and the latest sunset is 5 hours, 8 minutes later at 9:42 PM on June 24.

Daylight saving time (DST) is observed in Cardston during 2020, starting in the spring on March 8, lasting 7.8 months, and ending in the fall on November 1.

Sunrise & Sunset with Twilight and Daylight Saving Time

Sunrise & Sunset with Twilight and Daylight Saving Time in CardstonJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 165:27 AMJun 165:27 AM9:42 PMJun 249:42 PMJun 24Dec 114:34 PMDec 114:34 PM8:28 AMJan 18:28 AMJan 1Mar 8DSTMar 8DSTDSTNov 1DSTNov 1daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2020. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

Humidity

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 Cardston, 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

Humidity Comfort Levels in CardstonJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jan 270%Jan 270%Jul 140%Jul 140%NowNowdrydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

Wind

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 Cardston experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 6.5 months, from October 12 to April 27, with average wind speeds of more than 9.6 miles per hour. The windiest day of the year is January 17, with an average hourly wind speed of 12.2 miles per hour.

The calmer time of year lasts for 5.5 months, from April 27 to October 12. The calmest day of the year is August 2, with an average hourly wind speed of 6.9 miles per hour.

Average Wind Speed

Average Wind Speed in CardstonwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph2 mph4 mph6 mph8 mph10 mph12 mph14 mph16 mph18 mph20 mphJan 1712.2 mphJan 1712.2 mphAug 26.9 mphAug 26.9 mphOct 129.6 mphOct 129.6 mphApr 279.6 mphApr 279.6 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Cardston is from the west throughout the year.

Wind Direction

Wind Direction in CardstonJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestnortheastsouth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Best Time of Year to Visit

To characterize how pleasant the weather is in Cardston 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 Cardston for general outdoor tourist activities is from early July to mid August, with a peak score in the third week of July.

Tourism Score

Tourism Score in CardstonJanFebMarAprMayJunJulAugSepOctNovDec02468105.95.90.00.0NowNow precipitationprecipitationcloudscloudstemperaturetemperaturetourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

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 Cardston for hot-weather activities is from mid July to mid August, with a peak score in the last week of July.

Beach/Pool Score

Beach/Pool Score in CardstonJanFebMarAprMayJunJulAugSepOctNovDec02468102.62.60.00.0NowNow precipitationprecipitationcloudscloudstemperaturetemperature
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

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.

Growing Season

Definitions 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 in Cardston typically lasts for 4.0 months (125 days), from around May 17 to around September 19, rarely starting before April 27 or after June 5, and rarely ending before September 2 or after October 4.

Time Spent in Various Temperature Bands and the Growing Season

Time Spent in Various Temperature Bands and the Growing Season in Cardstongrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%May 1750%May 1750%Sep 1950%Sep 1950%Jun 590%Jun 590%Sep 290%Sep 290%Apr 2710%Apr 2710%Oct 410%Oct 410%0%Feb 170%Feb 17Jul 19100%Jul 19100%frigidfreezingvery coldcoldcoolcomfortablehot
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is 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.

Based on growing degree days alone, the first spring blooms in Cardston should appear around May 8, only rarely appearing before April 23 or after May 23.

Growing Degree Days

Growing Degree Days in CardstonJanFebMarAprMayJunJulAugSepOctNovDec0°F200°F400°F600°F800°F1,000°F1,200°F1,400°F1,600°F1,800°FMay 890°FMay 890°FJul 30900°FJul 30900°FDec 311,605°FDec 311,605°FNowNow
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

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 extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.4 months, from May 6 to August 17, with an average daily incident shortwave energy per square meter above 6.1 kWh. The brightest day of the year is July 7, with an average of 7.4 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 2.4 kWh. The darkest day of the year is December 23, with an average of 1.1 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in CardstonbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWh9 kWhJul 77.4 kWhJul 77.4 kWhDec 231.1 kWhDec 231.1 kWhMay 66.1 kWhMay 66.1 kWhAug 176.1 kWhAug 176.1 kWhOct 262.4 kWhOct 262.4 kWhFeb 142.4 kWhFeb 142.4 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Cardston are 49.200 deg latitude, -113.302 deg longitude, and 3,799 ft elevation.

The topography within 2 miles of Cardston contains only modest variations in elevation, with a maximum elevation change of 299 feet and an average elevation above sea level of 3,784 feet. Within 10 miles contains only modest variations in elevation (1,329 feet). Within 50 miles contains very significant variations in elevation (7,753 feet).

The area within 2 miles of Cardston is covered by cropland (87%), within 10 miles by cropland (73%) and grassland (24%), and within 50 miles by cropland (43%) and grassland (30%).

Data Sources

This report illustrates the typical weather in Cardston, 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Cardston.

For each station, the records are corrected for the elevation difference between that station and Cardston 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 Cardston is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Cardston and a given station.

The stations contributing to this reconstruction are: Cardston Automated Reporting Station (96%, 1.4 kilometers, east) and Glenwood (3.6%, 22 kilometers, northwest).

Other Data

All 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 aiports and weather stations are provided by AskGeo.com .

Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.

Disclaimer

The 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.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.