Average Weather in December in Wyoming Michigan, United States
In Wyoming, the month of December is characterized by falling daily high temperatures, with daily highs decreasing by 8°F, from 41°F to 33°F over the course of the month, and rarely exceeding 54°F or dropping below 20°F.
Daily low temperatures decrease by 8°F, from 30°F to 22°F, rarely falling below 7°F or exceeding 40°F.
For reference, on July 19, the hottest day of the year, temperatures in Wyoming typically range from 64°F to 83°F, while on January 29, the coldest day of the year, they range from 19°F to 30°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 Wyoming experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 62% to 69%.
The clearest day of the month is December 1, with clear, mostly clear, or partly cloudy conditions 38% of the time.
For reference, on January 8, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 69%, while on August 7, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 67%.
Cloud Cover Categories in December
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Wyoming, the chance of a wet day over the course of December is essentially constant, remaining around 24% throughout.
For reference, the year's highest daily chance of a wet day is 33% on September 21, and its lowest chance is 17% on February 8.
Over the course of December in Wyoming, the chance of a day with only rain decreases from 16% to 10%, the chance of a day with mixed snow and rain remains an essentially constant 4% throughout, and the chance of a day with only snow increases from 6% to 10%.
Probability of Precipitation in December
The average sliding 31-day rainfall during December in Wyoming is decreasing, starting the month at 1.8 inches, when it rarely exceeds 3.1 inches or falls below 0.6 inches, and ending the month at 1.0 inches, when it rarely exceeds 2.1 inches or falls below 0.1 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 Wyoming is gradually increasing, starting the month at 0.4 inches, when it rarely exceeds 0.9 inches, and ending the month at 0.6 inches, when it rarely exceeds 1.2 inches or falls below 0.1 inches.
Average Monthly Liquid-Equivalent Snowfall in December
Over the course of December in Wyoming, the length of the day is essentially constant. The shortest day of the month is December 21, with 9 hours, 1 minute of daylight and the longest day is December 1, with 9 hours, 15 minutes of daylight.
Hours of Daylight and Twilight in December
The earliest sunrise of the month in Wyoming is 7:54 AM on December 1 and the latest sunrise is 19 minutes later at 8:13 AM on December 31.
The earliest sunset is 5:08 PM on December 7 and the latest sunset is 10 minutes later at 5:18 PM on December 31.
Daylight saving time is observed in Wyoming during 2017, 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 6:04 AM and sets 15 hours, 21 minutes later, at 9:25 PM, while on December 21, the shortest day of the year, it rises at 8:10 AM and sets 9 hours, 1 minute later, at 5:11 PM.
Sunrise & Sunset with Twilight and Daylight Saving Time in December
The chance that a given day will be muggy in Wyoming is essentially constant during December, remaining around 0% throughout.
For reference, on July 28, the muggiest day of the year, there are muggy conditions 36% 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 Wyoming is essentially constant during December, remaining within 0.3 miles per hour of 12.3 miles per hour throughout.
For reference, on January 12, the windiest day of the year, the daily average wind speed is 12.8 miles per hour, while on August 3, the calmest day of the year, the daily average wind speed is 7.9 miles per hour.
Average Wind Speed in December
Wind Direction in December
Wyoming is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average surface water temperature in Wyoming is decreasing during December, falling by 5°F, from 45°F to 40°F, over the course of the month.
Average Water Temperature in December
The growing season in Wyoming typically lasts for 5.6 months (171 days), from around April 27 to around October 16, rarely starting before April 10 or after May 16, and rarely ending before September 27 or after November 4.
The month of December in Wyoming 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 Wyoming is essentially constant during December, remaining within 2°F of 2,961°F throughout.
Growing Degree Days in December
The average daily incident shortwave solar energy in Wyoming is essentially constant during December, remaining within 0.1 kWh of 1.4 kWh throughout.
The lowest average daily incident shortwave solar energy during December is 1.3 kWh on December 23.
Average Daily Incident Shortwave Solar Energy in December
For the purposes of this report, the geographical coordinates of Wyoming are 42.913 deg latitude, -85.705 deg longitude, and 643 ft elevation.
The topography within 2 miles of Wyoming contains only modest variations in elevation, with a maximum elevation change of 112 feet and an average elevation above sea level of 642 feet. Within 10 miles also contains only modest variations in elevation (440 feet). Within 50 miles contains only modest variations in elevation (686 feet).
The area within 2 miles of Wyoming is covered by artificial surfaces (99%), within 10 miles by artificial surfaces (61%) and cropland (28%), and within 50 miles by cropland (43%) and trees (30%).
This report illustrates the typical weather in Wyoming 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 Wyoming.
For each station, the records are corrected for the elevation difference between that station and Wyoming 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 Wyoming is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Wyoming and a given station.
The stations contributing to this reconstruction are: Gerald R. Ford International Airport (69%, 15 kilometers, east); West Michigan Regional Airport (19%, 37 kilometers, southwest); and Muskegon County Airport (12%, 52 kilometers, northwest).
Time zones for aiports and weather stations are provided by AskGeo.com .