1. WeatherSpark.com
  2. Canada
  3. Saskatchewan
  4. Rosthern

Winter Weather in Rosthern Canada

Daily high temperatures are around 17°F, rarely falling below -12°F or exceeding 38°F. The lowest daily average high temperature is 11°F on January 6.

Daily low temperatures decrease by 2°F, from 7°F to 4°F, rarely falling below -29°F or exceeding 23°F. The lowest daily average low temperature is -4°F on January 12.

For reference, on July 27, the hottest day of the year, temperatures in Rosthern typically range from 54°F to 76°F, while on January 11, the coldest day of the year, they range from -4°F to 11°F.

Average High and Low Temperature in the Winter in Rosthern

Average High and Low Temperature in the Winter in RosthernDecJanFeb-30°F-30°F-20°F-20°F-10°F-10°F0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°FFallSpringJan 611°FJan 611°F-4°F-4°FDec 120°FDec 120°F7°F7°FFeb 2822°FFeb 2822°F4°F4°FFeb 115°FFeb 115°F-2°F-2°F
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 hourly average winter temperatures. 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 the Winter in Rosthern

Average Hourly Temperature in the Winter in RosthernDecJanFeb12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMFallSpringfrigidfreezingfreezing
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.

Karagandy, Kazakhstan (5,361 miles away) and Novokuznetsk, Russia (5,049 miles) are the far-away foreign places with temperatures most similar to Rosthern (view comparison).

Compare Rosthern to another city:

Clouds

The winter in Rosthern experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 66% to 71%. The highest chance of overcast or mostly cloudy conditions is 71% on February 22.

The clearest day of the winter is December 9, with clear, mostly clear, or partly cloudy conditions 34% of the time.

For reference, on February 21, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 71%, while on July 30, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 67%.

Cloud Cover Categories in the Winter in Rosthern

Cloud Cover Categories in the Winter in RosthernDecJanFeb0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%FallSpringJul 3067%Jul 3067%Dec 134%Dec 134%Feb 2829%Feb 2829%Jan 133%Jan 133%Feb 132%Feb 132%clearmostly 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. In Rosthern, the chance of a wet day over the course of the winter is gradually decreasing, starting the season at 8% and ending it at 6%.

For reference, the year's highest daily chance of a wet day is 31% on July 2, and its lowest chance is 6% on March 2.

Probability of Precipitation in the Winter in Rosthern

Probability of Precipitation in the Winter in RosthernDecJanFeb0%0%1%1%2%2%3%3%4%4%5%5%6%6%7%7%8%8%9%9%10%10%11%11%12%12%FallSpringDec 18%Dec 18%Feb 286%Feb 286%Jan 17%Jan 17%Feb 18%Feb 18%snowrainmixed
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).

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. 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 the winter in Rosthern is essentially constant, remaining about 0.3 inches throughout, and rarely exceeding 0.6 inches or falling to 0.0 inches.

The highest average 31-day liquid-equivalent accumulation is 0.3 inches on January 24.

Average Monthly Liquid-Equivalent Snowfall in the Winter in Rosthern

Average Monthly Liquid-Equivalent Snowfall in the Winter in RosthernDecJanFeb0.0 in0.0 in0.1 in0.1 in0.2 in0.2 in0.3 in0.3 in0.4 in0.4 in0.5 in0.5 in0.6 in0.6 in0.7 in0.7 inFallSpringJan 240.3 inJan 240.3 inDec 10.3 inDec 10.3 inFeb 280.2 inFeb 280.2 inJan 10.3 inJan 10.3 in
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

Over the course of the winter in Rosthern, the length of the day is very rapidly increasing. From the start to the end of the season, the length of the day increases by 2 hours, 50 minutes, implying an average daily increase of 1 minute, 54 seconds, and weekly increase of 13 minutes, 21 seconds.

The shortest day of the winter is December 21, with 7 hours, 37 minutes of daylight and the longest day is February 28, with 10 hours, 49 minutes of daylight.

Hours of Daylight and Twilight in the Winter in Rosthern

Hours of Daylight and Twilight in the Winter in RosthernDecJanFeb0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrFallSpringDec 217 hr, 38 minDec 217 hr, 38 minnightnightdaydayFeb 2810 hr, 49 minFeb 2810 hr, 49 minFeb 19 hr, 4 minFeb 19 hr, 4 min
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 latest sunrise of the winter in Rosthern is 9:17 AM on December 29 and the earliest sunrise is 1 hour, 23 minutes earlier at 7:53 AM on February 28.

The earliest sunset is 4:50 PM on December 12 and the latest sunset is 1 hour, 53 minutes later at 6:42 PM on February 28.

Daylight saving time is not observed in Rosthern during 2021.

For reference, on June 21, the longest day of the year, the Sun rises at 4:41 AM and sets 16 hours, 52 minutes later, at 9:33 PM, while on December 21, the shortest day of the year, it rises at 9:14 AM and sets 7 hours, 37 minutes later, at 4:52 PM.

Sunrise & Sunset with Twilight in the Winter in Rosthern

Sunrise & Sunset with Twilight in the Winter in RosthernDecJanFeb2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMFallSpring7:53 AM7:53 AMFeb 286:42 PMFeb 286:42 PM9:08 AM9:08 AMDec 124:50 PMDec 124:50 PM9:17 AM9:17 AMDec 294:58 PMDec 294:58 PM8:47 AM8:47 AMFeb 15:51 PMFeb 15:51 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day in the winter. 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.

Moon

The figure below presents a compact representation of key lunar data for the winter of 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. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in the Winter in Rosthern

Moon Rise, Set & Phases in the Winter in RosthernDecJanFeb12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMFallSpringNov 43:15 PMNov 43:15 PMNov 192:58 AMNov 192:58 AMDec 41:44 AMDec 41:44 AMDec 1810:36 PMDec 1810:36 PMJan 212:34 PMJan 212:34 PMJan 175:49 PMJan 175:49 PMJan 3111:47 PMJan 3111:47 PMFeb 1610:57 AMFeb 1610:57 AMMar 211:35 AMMar 211:35 AMMar 181:18 AMMar 181:18 AMApr 112:25 AMApr 112:25 AM5:36 PM5:36 PM4:55 PM4:55 PM9:40 AM9:40 AM5:03 PM5:03 PM4:15 PM4:15 PM9:44 AM9:44 AM4:41 PM4:41 PM9:10 AM9:10 AM4:54 PM4:54 PM4:57 PM4:57 PM8:58 AM8:58 AM8:24 AM8:24 AM6:47 PM6:47 PM6:33 PM6:33 PM7:49 AM7:49 AM7:05 PM7:05 PM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

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 chance that a given day will be muggy in Rosthern is essentially constant during the winter, remaining around 0% throughout.

For reference, on July 17, the muggiest day of the year, there are muggy conditions 3% of the time, while on September 17, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in the Winter in Rosthern

Humidity Comfort Levels in the Winter in RosthernDecJanFeb0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%FallSpringDec 10%Dec 10%Feb 280%Feb 280%Jan 10%Jan 10%Feb 10%Feb 10%drydry
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 Rosthern is essentially constant during the winter, remaining within 0.2 miles per hour of 10.1 miles per hour throughout.

For reference, on April 1, the windiest day of the year, the daily average wind speed is 11.2 miles per hour, while on July 30, the calmest day of the year, the daily average wind speed is 8.8 miles per hour.

The lowest daily average wind speed during the winter is 9.9 miles per hour on December 16.

Average Wind Speed in the Winter in Rosthern

Average Wind Speed in the Winter in RosthernDecJanFeb0 mph0 mph5 mph5 mph10 mph10 mph15 mph15 mphFallSpringDec 169.9 mphDec 169.9 mphFeb 2810.3 mphFeb 2810.3 mphJan 19.9 mphJan 19.9 mphFeb 110.4 mphFeb 110.4 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in Rosthern throughout the winter is predominantly from the west, with a peak proportion of 41% on January 4.

Wind Direction in the Winter in Rosthern

Wind Direction in the Winter in RosthernWNDecJanFeb0%100%20%80%40%60%60%40%80%20%100%0%FallSpringwestsoutheastnorth
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).

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 Rosthern typically lasts for 4.0 months (123 days), from around May 19 to around September 19, rarely starting before May 1 or after June 5, and rarely ending before September 2 or after October 5.

The winter in Rosthern is reliably fully outside of the growing season.

Time Spent in Various Temperature Bands and the Growing Season in the Winter in Rosthern

Time Spent in Various Temperature Bands and the Growing Season in the Winter in RosthernDecJanFeb0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%FallSpring0%Jan 150%Jan 15frigidfreezingvery coldcold
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.

The average accumulated growing degree days in Rosthern are very rapidly decreasing during the winter, decreasing by 1,606°F, from 1,606°F to 0°F, over the course of the season.

Growing Degree Days in the Winter in Rosthern

Growing Degree Days in the Winter in RosthernDecJanFeb0°F0°F200°F200°F400°F400°F600°F600°F800°F800°F1,000°F1,000°F1,200°F1,200°F1,400°F1,400°F1,600°F1,600°F1,800°F1,800°FFallSpringDec 11,606°FDec 11,606°FFeb 270°FFeb 270°FJan 10°FJan 10°F
The average growing degree days accumulated over the course of the winter, 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 in Rosthern is rapidly increasing during the winter, rising by 1.6 kWh, from 0.9 kWh to 2.5 kWh, over the course of the season.

The lowest average daily incident shortwave solar energy during the winter is 0.8 kWh on December 19.

Average Daily Incident Shortwave Solar Energy in the Winter in Rosthern

Average Daily Incident Shortwave Solar Energy in the Winter in RosthernDecJanFeb0.0 kWh0.0 kWh0.5 kWh0.5 kWh1.0 kWh1.0 kWh1.5 kWh1.5 kWh2.0 kWh2.0 kWh2.5 kWh2.5 kWh3.0 kWh3.0 kWh3.5 kWh3.5 kWh4.0 kWh4.0 kWh4.5 kWh4.5 kWh5.0 kWh5.0 kWh5.5 kWh5.5 kWhFallSpringDec 190.8 kWhDec 190.8 kWhDec 10.9 kWhDec 10.9 kWhFeb 282.5 kWhFeb 282.5 kWhFeb 11.4 kWhFeb 11.4 kWh
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 Rosthern are 52.667 deg latitude, -106.334 deg longitude, and 1,663 ft elevation.

The topography within 2 miles of Rosthern is essentially flat, with a maximum elevation change of 52 feet and an average elevation above sea level of 1,659 feet. Within 10 miles is essentially flat (312 feet). Within 50 miles contains only modest variations in elevation (1,289 feet).

The area within 2 miles of Rosthern is covered by cropland (87%), within 10 miles by cropland (96%), and within 50 miles by cropland (86%).

Data Sources

This report illustrates the typical weather in Rosthern, 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Rosthern.

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

The stations contributing to this reconstruction are: Saskatoon John G. Diefenbaker International Airport (CYXE, 41%, 61 kilometers, southwest); Prince Albert (Glass Field) Airport (CYPA, 30%, 75 kilometers, northeast); Spiritwood West, Sask (CWSR, 16%, 113 kilometers, northwest); and North Battleford Airport (CYQW, 13%, 129 kilometers, west).

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 airports 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.