Average Weather in January in Jäppilä Finland
Daily high temperatures decrease by 2°F, from 23°F to 21°F, rarely falling below 0°F or exceeding 36°F.
Daily low temperatures decrease by 3°F, from 12°F to 9°F, rarely falling below -16°F or exceeding 31°F.
For reference, on July 23, the hottest day of the year, temperatures in Jäppilä typically range from 54°F to 70°F, while on February 3, the coldest day of the year, they range from 9°F to 20°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 Jäppilä experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 83% throughout the month.
The clearest day of the month is January 5, with clear, mostly clear, or partly cloudy conditions 17% of the time.
For reference, on December 12, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 84%, while on July 19, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 55%.
Cloud Cover Categories in January
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Jäppilä, the chance of a wet day over the course of January is decreasing, starting the month at 25% and ending it at 20%.
For reference, the year's highest daily chance of a wet day is 37% on July 29, and its lowest chance is 15% on March 11.
Over the course of January in Jäppilä, the chance of a day with only rain remains an essentially constant 2% throughout, the chance of a day with mixed snow and rain decreases from 5% to 3%, and the chance of a day with only snow remains an essentially constant 16% throughout.
Probability of Precipitation in January
The average sliding 31-day rainfall during January in Jäppilä is essentially constant, remaining about 0.2 inches throughout, and rarely exceeding 0.9 inches.
The lowest average 31-day accumulation is 0.2 inches on January 29.
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 Jäppilä is essentially constant, remaining about 0.8 inches throughout, and rarely exceeding 1.6 inches or falling below 0.3 inches.
The highest average 31-day liquid-equivalent accumulation is 0.9 inches on January 17.
Average Monthly Liquid-Equivalent Snowfall in January
Over the course of January in Jäppilä, the length of the day is very rapidly increasing. From the start to the end of the month, the length of the day increases by 2 hours, 14 minutes, implying an average daily increase of 4 minutes, 28 seconds, and weekly increase of 31 minutes, 16 seconds.
The shortest day of the month is January 1, with 5 hours, 13 minutes of daylight and the longest day is January 31, with 7 hours, 27 minutes of daylight.
Hours of Daylight and Twilight in January
The latest sunrise of the month in Jäppilä is 9:37 AM on January 1 and the earliest sunrise is 57 minutes earlier at 8:40 AM on January 31.
The earliest sunset is 2:50 PM on January 1 and the latest sunset is 1 hour, 17 minutes later at 4:07 PM on January 31.
Daylight saving time is observed in Jäppilä during 2021, 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 3:13 AM and sets 19 hours, 57 minutes later, at 11:10 PM, while on December 21, the shortest day of the year, it rises at 9:38 AM and sets 4 hours, 59 minutes later, at 2:38 PM.
Sunrise & Sunset with Twilight in January
The figure below presents a compact representation of key lunar data for January 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 January
The chance that a given day will be muggy in Jäppilä is essentially constant during January, remaining around 0% throughout.
For reference, on July 26, the muggiest day of the year, there are muggy conditions 2% of the time, while on September 19, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in January
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Jäppilä is essentially constant during January, remaining within 0.2 miles per hour of 7.4 miles per hour throughout.
For reference, on March 20, the windiest day of the year, the daily average wind speed is 7.8 miles per hour, while on July 30, the calmest day of the year, the daily average wind speed is 5.6 miles per hour.
The highest daily average wind speed during January is 7.5 miles per hour on January 24.
Average Wind Speed in January
The hourly average wind direction in Jäppilä throughout January is predominantly from the south, with a peak proportion of 35% on January 31.
Wind Direction in January
The growing season in Jäppilä typically lasts for 4.4 months (136 days), from around May 15 to around September 27, rarely starting before April 28 or after May 31, and rarely ending before September 9 or after October 17.
The month of January in Jäppilä 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 Jäppilä are essentially constant during January, remaining around 0°F throughout.
Growing Degree Days in January
The average daily incident shortwave solar energy in Jäppilä is essentially constant during January, remaining within 0.2 kWh of 0.2 kWh throughout.
Average Daily Incident Shortwave Solar Energy in January
For the purposes of this report, the geographical coordinates of Jäppilä are 62.379 deg latitude, 27.434 deg longitude, and 354 ft elevation.
The topography within 2 miles of Jäppilä contains only modest variations in elevation, with a maximum elevation change of 138 feet and an average elevation above sea level of 367 feet. Within 10 miles also contains only modest variations in elevation (400 feet). Within 50 miles contains only modest variations in elevation (538 feet).
The area within 2 miles of Jäppilä is covered by trees (71%) and water (18%), within 10 miles by trees (78%) and water (17%), and within 50 miles by trees (71%) and water (23%).
This report illustrates the typical weather in Jäppilä, 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 Jäppilä.
For each station, the records are corrected for the elevation difference between that station and Jäppilä 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 Jäppilä is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Jäppilä and a given station.
The stations contributing to this reconstruction are: Varkaus Airport (60%, 32 kilometers, southeast); Kuopio Airport (18%, 72 kilometers, north); Jyväskylä Airport (13%, 91 kilometers, west); and Viitasaari (9%, 112 kilometers, northwest).
Time zones for airports and weather stations are provided by AskGeo.com .