Average Weather in December in Spirit River Canada
Daily high temperatures decrease by 5°F, from 22°F to 17°F, rarely falling below -7°F or exceeding 40°F. The lowest daily average high temperature is 17°F on December 31.
Daily low temperatures decrease by 5°F, from 9°F to 4°F, rarely falling below -21°F or exceeding 28°F.
For reference, on July 25, the hottest day of the year, temperatures in Spirit River typically range from 52°F to 74°F, while on January 11, the coldest day of the year, they range from 4°F to 17°F.
Average High and Low Temperature in December
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on December. 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 December
The month of December in Spirit River experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 66% throughout the month.
The clearest day of the month is December 7, with clear, mostly clear, or partly cloudy conditions 34% of the time.
For reference, on February 20, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 70%, while on August 4, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 56%.
Cloud Cover Categories in December
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Spirit River, the chance of a wet day over the course of December is essentially constant, remaining around 14% throughout.
For reference, the year's highest daily chance of a wet day is 30% on June 22, and its lowest chance is 11% on March 8.
Over the course of December in Spirit River, the chance of a day with only rain remains an essentially constant 2% throughout, the chance of a day with mixed snow and rain remains an essentially constant 1% throughout, and the chance of a day with only snow remains an essentially constant 12% throughout.
Probability of Precipitation in December
The average sliding 31-day rainfall during December in Spirit River is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.3 inches or falling below -0.0 inches.
The lowest average 31-day accumulation is 0.1 inches on December 17.
Average Monthly Rainfall in December
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 December in Spirit River is essentially constant, remaining about 0.6 inches throughout, and rarely exceeding 1.3 inches or falling below 0.1 inches.
Average Monthly Liquid-Equivalent Snowfall in December
Over the course of December in Spirit River, the length of the day is gradually decreasing. From the start to the end of the month, the length of the day decreases by 20 minutes, implying an average daily decrease of 39 seconds, and weekly decrease of 4 minutes, 35 seconds.
The shortest day of the month is December 21, with 6 hours, 60 minutes of daylight and the longest day is December 1, with 7 hours, 26 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Spirit River is 9:01 AM on December 1 and the latest sunrise is 24 minutes later at 9:25 AM on December 29.
The earliest sunset is 4:21 PM on December 14 and the latest sunset is 10 minutes later at 4:31 PM on December 31.
Daylight saving time is observed in Spirit River during 2018, but it neither starts nor ends during December, so the entire month is in standard time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:10 AM and sets 17 hours, 34 minutes later, at 10:44 PM, while on December 21, the shortest day of the year, it rises at 9:23 AM and sets 6 hours, 60 minutes later, at 4:23 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in December
The chance that a given day will be muggy in Spirit River is essentially constant during December, remaining around 0% throughout.
For reference, on July 22, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in December
The average hourly wind speed in Spirit River is essentially constant during December, remaining within 0.1 miles per hour of 8.4 miles per hour throughout.
For reference, on April 20, the windiest day of the year, the daily average wind speed is 8.9 miles per hour, while on August 1, the calmest day of the year, the daily average wind speed is 7.2 miles per hour.
The highest daily average wind speed during December is 8.5 miles per hour on December 12.
Average Wind Speed in December
Wind Direction in December
The growing season in Spirit River typically lasts for 4.3 months (133 days), from around May 10 to around September 20, rarely starting before April 22 or after May 30, and rarely ending before September 2 or after October 7.
The month of December in Spirit River is reliably fully outside of the growing season.
Time Spent in Various Temperature Bands and the Growing Season in December
The average accumulated growing degree days in Spirit River are essentially constant during December, remaining around 1,279°F throughout.
Growing Degree Days in December
The average daily incident shortwave solar energy in Spirit River is essentially constant during December, remaining within 0.1 kWh of 0.6 kWh throughout.
The lowest average daily incident shortwave solar energy during December is 0.5 kWh on December 20.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Spirit River are 55.783 deg latitude, -118.836 deg longitude, and 2,028 ft elevation.
The topography within 2 miles of Spirit River contains only modest variations in elevation, with a maximum elevation change of 315 feet and an average elevation above sea level of 2,059 feet. Within 10 miles contains only modest variations in elevation (1,798 feet). Within 50 miles contains very significant variations in elevation (2,270 feet).
The area within 2 miles of Spirit River is covered by cropland (63%) and sparse vegetation (35%), within 10 miles by cropland (65%) and sparse vegetation (26%), and within 50 miles by cropland (44%) and trees (36%).
This report illustrates the typical weather in Spirit River year round, 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 Spirit River.
For each station, the records are corrected for the elevation difference between that station and Spirit River 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 Spirit River is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Spirit River and a given station.
The stations contributing to this reconstruction are: Spirit River Auto Station, Alta (24%, 27 kilometers, southwest); Peoria AGDM (33%, 39 kilometers, southeast); Fairview AGDM (31%, 40 kilometers, northeast); and Cleardale AGDM (11%, 80 kilometers, northwest).
Time zones for aiports and weather stations are provided by AskGeo.com .