Average Weather in January in Fairfax Minnesota, United States
Daily high temperatures are around 24°F, rarely falling below 5°F or exceeding 41°F. The lowest daily average high temperature is 24°F on January 13.
Daily low temperatures are around 9°F, rarely falling below -12°F or exceeding 28°F. The lowest daily average low temperature is 8°F on January 15.
For reference, on July 18, the hottest day of the year, temperatures in Fairfax typically range from 63°F to 83°F, while on January 15, the coldest day of the year, they range from 8°F to 24°F.
Average High and Low Temperature in January
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on January. 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 January
The month of January in Fairfax experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 56% throughout the month.
The clearest day of the month is January 5, with clear, mostly clear, or partly cloudy conditions 45% of the time.
For reference, on February 5, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 59%, while on July 28, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 74%.
Cloud Cover Categories in January
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Fairfax, the chance of a wet day over the course of January is essentially constant, remaining around 8% throughout.
For reference, the year's highest daily chance of a wet day is 40% on June 12, and its lowest chance is 7% on January 15.
Over the course of January in Fairfax, the chance of a day with only rain remains an essentially constant 1% 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 6% throughout.
Probability of Precipitation in January
The average sliding 31-day rainfall during January in Fairfax is essentially constant, remaining about 0.1 inches throughout, and rarely exceeding 0.6 inches.
The lowest average 31-day accumulation is 0.1 inches on January 25.
Average Monthly Rainfall in January
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 January in Fairfax is essentially constant, remaining about 0.3 inches throughout, and rarely exceeding 1.0 inches or falling to 0.0 inches.
Average Monthly Liquid-Equivalent Snowfall in January
Over the course of January in Fairfax, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 54 minutes, implying an average daily increase of 1 minute, 48 seconds, and weekly increase of 12 minutes, 33 seconds.
The shortest day of the month is January 1, with 8 hours, 54 minutes of daylight and the longest day is January 31, with 9 hours, 48 minutes of daylight.
Hours of Daylight and Twilight in January
The latest sunrise of the month in Fairfax is 7:55 AM on January 2 and the earliest sunrise is 17 minutes earlier at 7:38 AM on January 31.
The earliest sunset is 4:49 PM on January 1 and the latest sunset is 37 minutes later at 5:26 PM on January 31.
Daylight saving time is observed in Fairfax during 2018, but it neither starts nor ends during January, so the entire month is in standard time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:34 AM and sets 15 hours, 33 minutes later, at 9:07 PM, while on December 21, the shortest day of the year, it rises at 7:52 AM and sets 8 hours, 49 minutes later, at 4:41 PM.
Sunrise & Sunset with Twilight in January
The chance that a given day will be muggy in Fairfax is essentially constant during January, remaining around 0% throughout.
For reference, on July 20, the muggiest day of the year, there are muggy conditions 38% of the time, while on November 15, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in January
The average hourly wind speed in Fairfax is essentially constant during January, remaining within 0.1 miles per hour of 12.0 miles per hour throughout.
For reference, on April 9, the windiest day of the year, the daily average wind speed is 12.9 miles per hour, while on August 2, the calmest day of the year, the daily average wind speed is 8.5 miles per hour.
Average Wind Speed in January
Wind Direction in January
The growing season in Fairfax typically lasts for 5.3 months (160 days), from around April 25 to around October 2, rarely starting before April 6 or after May 15, and rarely ending before September 14 or after October 22.
The month of January in Fairfax is reliably fully outside of the growing season.
Time Spent in Various Temperature Bands and the Growing Season in January
The average accumulated growing degree days in Fairfax are essentially constant during January, remaining around 0°F throughout.
Growing Degree Days in January
The average daily incident shortwave solar energy in Fairfax is gradually increasing during January, rising by 0.7 kWh, from 1.6 kWh to 2.2 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in January
For the purposes of this report, the geographical coordinates of Fairfax are 44.529 deg latitude, -94.721 deg longitude, and 1,033 ft elevation.
The topography within 2 miles of Fairfax is essentially flat, with a maximum elevation change of 66 feet and an average elevation above sea level of 1,034 feet. Within 10 miles is essentially flat (335 feet). Within 50 miles contains only modest variations in elevation (869 feet).
The area within 2 miles of Fairfax is covered by cropland (100%), within 10 miles by cropland (94%), and within 50 miles by cropland (94%).
This report illustrates the typical weather in Fairfax 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 Fairfax.
For each station, the records are corrected for the elevation difference between that station and Fairfax 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 Fairfax is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Fairfax and a given station.
The stations contributing to this reconstruction are: Redwood Falls Municipal Airport (32%, 29 kilometers, west); New Ulm Municipal Airport (31%, 29 kilometers, southeast); Olivia Regional Airport (21%, 37 kilometers, northwest); and Hutchinson Municipal Airport (16%, 45 kilometers, northeast).
Time zones for aiports and weather stations are provided by AskGeo.com .