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Average Weather at Jasper Warden Automated Reporting Station Canada

At Jasper Warden Automated Reporting Station, the temperature typically varies from -6°F to 65°F over the course of the year, and is rarely below -30°F or above 75°F.

The warm season lasts for 103 days, from May 31 to September 11, with an average daily high temperature above 54°F. The hottest day of the year is July 31, with an average high of 65°F and low of 35°F.

The cold season lasts for 98 days, from November 13 to February 19, with an average daily high temperature below 24°F. The coldest day of the year is January 1, with an average low of -6°F and high of 14°F.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature with percentile bands, 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

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDecfrigidfrigidfreezingfreezingchillychillycoldcoldcoolcool
The average hourly temperature, color coded into bands: frigid < 15°F < freezing < 32°F < chilly < 45°F < cold < 55°F < cool < 65°F < comfortable < 75°F < warm < 85°F < hot < 95°F < sweltering. The shaded overlays indicate night and civil twilight.

Sun

The length of the day at Jasper Warden Automated Reporting Station varies extremely over the course of the year. In 2017, the shortest day is December 21, with 7 hours, 34 minutes of daylight; the longest day is June 21, with 16 hours, 55 minutes of daylight.

Hours of Daylight and Twilight

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 17, and the latest sunrise is 3 hours, 39 minutes later at 9:06 AM on December 29. The earliest sunset is at 4:36 PM on December 13, and the latest sunset is 5 hours, 46 minutes later at 10:22 PM on June 24.

Daylight saving time (DST) is observed at Jasper Warden Automated Reporting Station 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

The solar day over the course of the year 2017. 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.

Clouds

At Jasper Warden Automated Reporting Station, 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 at Jasper Warden Automated Reporting Station begins around June 30 and lasts for 102 days, ending around October 10. On August 3, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 57% of the time, and overcast or mostly cloudy 43% of the time.

The cloudier part of the year begins around October 10 and lasts for 263 days, ending around June 30. On February 25, 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.

Cloud Cover

clearerclearercloudiercloudiercloudiercloudier0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecFeb 2568%Feb 2568%Aug 343%Aug 343%Jun 3056%Jun 3056%Oct 1056%Oct 1056%overcastovercastmostly cloudymostly cloudymostly clearmostly clearclearclear
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days at Jasper Warden Automated Reporting Station varies significantly throughout the year.

The wetter season lasts 123 days, from May 14 to September 14, with a greater than 25% chance of a given day being a wet day. The chance of a wet day peaks at 42% on June 22.

The drier season lasts 242 days, from September 14 to May 14. The smallest chance of a wet day is 8% on February 15.

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 at Jasper Warden Automated Reporting Station changes throughout the year.

Snow alone is the most common for 196 days, from October 10 to April 24. The highest chance of a day with snow alone is 16% on November 9.

Rain alone is the most common for 153 days, from May 10 to October 10. The highest chance of a day with rain alone is 38% on June 30.

Mixed snow and rain is the most common for 16 days, from April 24 to May 10. The highest chance of a day with mixed snow and rain is 10% on May 8.

Daily Chance of Precipitation

snowsnowrainrainsnowsnow0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJun 2242%Jun 2242%Feb 158%Feb 158%Apr 2418%Apr 2418%Oct 1019%Oct 1019%Jan 112%Jan 112%snowsnowmixedmixedrainrain
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 in the year. Jasper Warden Automated Reporting Station experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 156 days, from May 2 to October 5, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around July 4, with an average total accumulation of 2.8 inches.

The rainless period of the year lasts for 209 days, from October 5 to May 2. The least rain falls around December 22, with and average total accumulation of 0.0 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 in the year. Jasper Warden Automated Reporting Station experiences some seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 315 days, from August 22 to July 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 November 8, with an average total liquid-equivalent accumulation of 0.9 inches.

The snowless period of the year lasts for 50 days, from July 3 to August 22. The least snow falls around August 1, with an average total liquid-equivalent accumulation of 0.0 inches.

Average Liquid-Equivalent Monthly Snowfall

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.

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 at Jasper Warden Automated Reporting Station, 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

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 30%Jul 30%drydrycomfortablecomfortable
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

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 at Jasper Warden Automated Reporting Station does not vary significantly over the course of the year, remaining within 0.5 miles per hour of 2.3 miles per hour throughout.

Average Wind Speed

0.0 mph0.5 mph1.0 mph1.5 mph2.0 mph2.5 mph3.0 mph3.5 mph4.0 mph4.5 mphJanFebMarAprMayJunJulAugSepOctNovDecDec 102.8 mphDec 102.8 mphAug 21.9 mphAug 21.9 mph
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 at Jasper Warden Automated Reporting Station varies throughout the year.

The wind is most often from the west for 88 days, from May 20 to August 16, with a peak percentage of 49% on July 18. The wind is most often from the south for 277 days, from August 16 to May 20, with a peak percentage of 63% on November 22.

Wind Direction

SSWWSS0%20%40%60%80%100%JanFebMarAprMayJunJulAugSepOctNovDecwestwestsouthsoutheasteastnorthnorth
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

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 very significant seasonal variation over the course of the year.

The brighter period of the year lasts for 122 days, from April 21 to August 21, with an average daily incident shortwave energy per square meter above 5.2 kWh. The brightest day of the year is July 10, with an average of 6.4 kWh.

The darker period of the year lasts for 110 days, from October 26 to February 13, with an average daily incident shortwave energy per square meter below 1.9 kWh. The darkest day of the year is December 23, with an average of 0.7 kWh.

Average Daily Incident Shortwave Solar Energy

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 Jasper Warden Automated Reporting Station are 52.933 deg latitude, -118.317 deg longitude, and 6,375 ft elevation (map ).

The topography within 2 miles of Jasper Warden Automated Reporting Station contains extreme variations in elevation, with a maximum elevation change of 4,032 feet, and an average elevation above sea level of 6,428 feet. Within 10 miles also contains extreme variations in elevation (6,224 feet). Within 50 miles also contains extreme variations in elevation (10,568 feet).

The area within 2 miles of Jasper Warden Automated Reporting Station is covered by trees (52%), sparse vegetation (18%), shrubs (15%), and bare soil (13%), within 10 miles by trees (56%) and sparse vegetation (22%), and within 50 miles by trees (50%) and sparse vegetation (23%).

Data Sources

This report illustrates the typical weather at Jasper Warden Automated Reporting Station, 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

Jasper Warden Automated Reporting Station has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

The stations on which we may fall back are Willow Creek, Blue River Marine Aviation Reporting Station, Blue River Airport, Edson Climate, and Edson Airport.

Other Data

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 .