Average Weather in December in Lake Crystal Minnesota, United States
Daily high temperatures decrease by 9°F, from 34°F to 25°F, rarely falling below 7°F or exceeding 49°F.
Daily low temperatures decrease by 9°F, from 20°F to 11°F, rarely falling below -9°F or exceeding 34°F.
For reference, on July 18, the hottest day of the year, temperatures in Lake Crystal typically range from 64°F to 83°F, while on January 15, the coldest day of the year, they range from 9°F to 25°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
Volgograd, Russia (5,560 miles away); Almaty, Kazakhstan (6,383 miles); and Benxi, China (6,091 miles) are the far-away foreign places with temperatures most similar to Lake Crystal (view comparison).
The month of December in Lake Crystal 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 December 1, with clear, mostly clear, or partly cloudy conditions 45% of the time.
For reference, on February 6, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 58%, while on July 27, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 73%.
Cloud Cover Categories in December
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Lake Crystal, the chance of a wet day over the course of December is gradually decreasing, starting the month at 12% and ending it at 9%.
For reference, the year's highest daily chance of a wet day is 42% on June 7, and its lowest chance is 7% on February 4.
Over the course of December in Lake Crystal, the chance of a day with only rain decreases from 5% to 1%, 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 December
The average sliding 31-day rainfall during December in Lake Crystal is gradually decreasing, starting the month at 0.5 inches, when it rarely exceeds 1.2 inches, and ending the month at 0.2 inches, when it rarely exceeds 0.6 inches or falls below -0.0 inches.
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 Lake Crystal is essentially constant, remaining about 0.4 inches throughout, and rarely exceeding 1.2 inches or falling to 0.0 inches.
The highest average 31-day liquid-equivalent accumulation is 0.4 inches on December 15.
Average Monthly Liquid-Equivalent Snowfall in December
Over the course of December in Lake Crystal, the length of the day is essentially constant. The shortest day of the month is December 21, with 8 hours, 52 minutes of daylight and the longest day is December 1, with 9 hours, 8 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Lake Crystal is 7:31 AM on December 1 and the latest sunrise is 20 minutes later at 7:51 AM on December 31.
The earliest sunset is 4:38 PM on December 9 and the latest sunset is 10 minutes later at 4:48 PM on December 31.
Daylight saving time is observed in Lake Crystal 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 5:33 AM and sets 15 hours, 30 minutes later, at 9:03 PM, while on December 21, the shortest day of the year, it rises at 7:48 AM and sets 8 hours, 52 minutes later, at 4:41 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in December
The chance that a given day will be muggy in Lake Crystal is essentially constant during December, remaining around 0% throughout.
For reference, on July 21, the muggiest day of the year, there are muggy conditions 41% 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 Lake Crystal is essentially constant during December, remaining within 0.3 miles per hour of 11.9 miles per hour throughout.
For reference, on April 9, the windiest day of the year, the daily average wind speed is 13.0 miles per hour, while on August 3, the calmest day of the year, the daily average wind speed is 8.5 miles per hour.
Average Wind Speed in December
Wind Direction in December
The growing season in Lake Crystal typically lasts for 5.5 months (168 days), from around April 22 to around October 6, rarely starting before April 4 or after May 10, and rarely ending before September 19 or after October 24.
The month of December in Lake Crystal 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 Lake Crystal are essentially constant during December, remaining around 2,875°F throughout.
Growing Degree Days in December
The average daily incident shortwave solar energy in Lake Crystal is essentially constant during December, remaining within 0.1 kWh of 1.6 kWh throughout.
The lowest average daily incident shortwave solar energy during December is 1.5 kWh on December 18.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Lake Crystal are 44.106 deg latitude, -94.219 deg longitude, and 988 ft elevation.
The topography within 2 miles of Lake Crystal is essentially flat, with a maximum elevation change of 56 feet and an average elevation above sea level of 986 feet. Within 10 miles is essentially flat (285 feet). Within 50 miles contains only modest variations in elevation (856 feet).
The area within 2 miles of Lake Crystal is covered by cropland (81%) and water (13%), within 10 miles by cropland (91%), and within 50 miles by cropland (95%).
This report illustrates the typical weather in Lake Crystal 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Lake Crystal.
For each station, the records are corrected for the elevation difference between that station and Lake Crystal 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 Lake Crystal is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Lake Crystal and a given station.
The stations contributing to this reconstruction are: Mankato Regional Airport (38%, 27 kilometers, northeast); St. James, St. James Municipal Airport (33%, 30 kilometers, southwest); and New Ulm Municipal Airport (29%, 33 kilometers, northwest).
Time zones for aiports and weather stations are provided by AskGeo.com .