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Average Weather in Fort Nelson Canada

In Fort Nelson, the summers are long and comfortable, the winters are frigid and snowy, and it is mostly cloudy year round. Over the course of the year, the temperature typically varies from -9°F to 75°F and is rarely below -30°F or above 84°F.

The warm season lasts for 4.1 months, from May 12 to September 15, with an average daily high temperature above 61°F. The hottest day of the year is July 24, with an average high of 75°F and low of 53°F.

The cold season lasts for 3.4 months, from November 12 to February 22, with an average daily high temperature below 20°F. The coldest day of the year is January 14, with an average low of -9°F and high of 6°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 Fort Nelson12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDecfrigidfreezingchillycoldcoolcomfortable
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.

Clouds

In Fort Nelson, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year.

The clearer part of the year in Fort Nelson begins around April 13 and lasts for 5.8 months, ending around October 7. On August 8, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 48% of the time, and overcast or mostly cloudy 52% of the time.

The cloudier part of the year begins around October 7 and lasts for 6.2 months, ending around April 13. On March 5, the cloudiest day of the year, the sky is overcast or mostly cloudy 70% of the time, and clear, mostly clear, or partly cloudy 30% of the time.

Cloud Cover

Cloud Cover in Fort Nelsonclearercloudiercloudier0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecMar 570%Mar 570%Aug 852%Aug 852%Apr 1362%Apr 1362%Oct 761%Oct 761%overcastmostly cloudypartly cloudymostly clearclear
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 in Fort Nelson varies throughout the year.

The wetter season lasts 4.1 months, from May 11 to September 14, with a greater than 20% chance of a given day being a wet day. The chance of a wet day peaks at 31% on July 8.

The drier season lasts 7.9 months, from September 14 to May 11. The smallest chance of a wet day is 10% on February 14.

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 Fort Nelson changes throughout the year.

Rain alone is the most common for 6.3 months, from April 8 to October 17. The highest chance of a day with rain alone is 31% on July 8.

Snow alone is the most common for 5.7 months, from October 17 to April 8. The highest chance of a day with snow alone is 14% on November 5.

Daily Chance of Precipitation

Daily Chance of Precipitation in Fort Nelsonsnowrainsnow0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 831%Jul 831%Feb 1410%Feb 1410%Apr 812%Apr 812%Oct 1719%Oct 1719%Jan 113%Jan 113%May 1120%May 1120%Sep 1420%Sep 1420%snowmixedrain
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. Fort Nelson experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 6.2 months, from April 13 to October 18, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around July 13, with an average total accumulation of 2.9 inches.

The rainless period of the year lasts for 5.8 months, from October 18 to April 13. The least rain falls around January 28, with an 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 of the year. Fort Nelson experiences some seasonal variation in monthly liquid-equivalent snowfall.

The snowy period of the year lasts for 7.6 months, from September 24 to May 11, 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 5, with an average total liquid-equivalent accumulation of 0.7 inches.

The snowless period of the year lasts for 4.4 months, from May 11 to September 24. The least snow falls around July 16, 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.

Sun

The length of the day in Fort Nelson varies extremely over the course of the year. In 2017, the shortest day is December 21, with 6 hours, 14 minutes of daylight; the longest day is June 21, with 18 hours, 27 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 3:59 AM on June 18, and the latest sunrise is 6 hours, 5 minutes later at 10:03 AM on December 27. The earliest sunset is at 4:14 PM on December 15, and the latest sunset is 6 hours, 12 minutes later at 10:26 PM on June 23.

Daylight saving time (DST) is not observed in Fort Nelson during 2017.

Sunrise & Sunset with Twilight

Sunrise & Sunset with Twilight in Fort Nelson2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDecJun 183:59 AMJun 183:59 AM10:26 PMJun 2310:26 PMJun 23Dec 154:14 PMDec 154:14 PM10:03 AMDec 2710:03 AMDec 27daynightnightnightnight
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.

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 Fort Nelson, 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 Fort Nelson0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJan 130%Jan 130%Jul 290%Jul 290%drydry
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 in Fort Nelson does not vary significantly over the course of the year, remaining within 0.3 miles per hour of 2.1 miles per hour throughout.

Average Wind Speed

Average Wind Speed in Fort Nelson0.0 mph0.5 mph1.0 mph1.5 mph2.0 mph2.5 mph3.0 mph3.5 mphJanFebMarAprMayJunJulAugSepOctNovDecJan 292.4 mphJan 292.4 mphJul 211.8 mphJul 211.8 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 in Fort Nelson varies throughout the year.

The wind is most often from the north for 1.3 months, from February 22 to April 1, with a peak percentage of 31% on March 5. The wind is most often from the west for 11 months, from April 1 to February 22, with a peak percentage of 37% on January 1.

Wind Direction

Wind Direction in Fort NelsonWNW0%20%40%60%80%100%JanFebMarAprMayJunJulAugSepOctNovDecwestsoutheastnorth
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 extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.5 months, from April 28 to August 14, with an average daily incident shortwave energy per square meter above 4.9 kWh. The brightest day of the year is June 15, with an average of 6.0 kWh.

The darker period of the year lasts for 4.0 months, from October 20 to February 19, with an average daily incident shortwave energy per square meter below 1.4 kWh. The darkest day of the year is December 19, with an average of 0.3 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 Fort Nelson are 58.805 deg latitude, -122.700 deg longitude, and 1,299 ft elevation.

The topography within 2 miles of Fort Nelson contains significant variations in elevation, with a maximum elevation change of 646 feet and an average elevation above sea level of 1,346 feet. Within 10 miles contains significant variations in elevation (1,257 feet). Within 50 miles contains very significant variations in elevation (4,203 feet).

The area within 2 miles of Fort Nelson is covered by trees (62%), sparse vegetation (16%), and herbaceous vegetation (12%), within 10 miles by trees (77%) and herbaceous vegetation (12%), and within 50 miles by trees (86%) and herbaceous vegetation (10%).

Data Sources

This report illustrates the typical weather in Fort Nelson, 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 is only a single weather station, Northern Rockies Regional Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Fort Nelson.

At a distance of 7 kilometers from Fort Nelson, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

The station records are corrected for the elevation difference between the station and Fort Nelson according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

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 .

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