Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December's arrival coincides with a drop in the average high-temperature, decreasing from November's frosty 45°F (7.2°C) to a wintry 33.4°F (0.8°C). Union Lake notes an average temperature descent to a freezing cold 25°F (-3.9°C) in December, a small shift from its daytime peak.Humidity
In Union Lake, Michigan, the average relative humidity in December is 84%.Rainfall
December is the month with the least rainfall. Rain falls for 8.9 days and accumulates 1.3" (33mm) of precipitation.Snowfall
Months with snowfall in Union Lake are January through May, October through December. In Union Lake, in December, snow falls for 14.5 days, with typically accumulated 2.72" (69mm) of snow. Throughout the year, in Union Lake, there are 64.7 snowfall days, and 19.13" (486mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:44 am and sunset at 5:01 pm. On the last day of December, sunrise is at 8:03 am and sunset at 5:10 pm EST.
Sunshine
The average sunshine in December is 3.3h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 1 during December leads to these advisories:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Union Lake in December?
What is the average humidity in December in Union Lake?
What is the driest month in Union Lake?
How much does it rain in Union Lake in December?
How many days does it snow in December in Union Lake?
What is the month with the shortest days in Union Lake?
How many hours of daylight does Union Lake have in December?
What time are sunrise and sunset in December in Union Lake?
How long on average sun shines in December in Union Lake?
What are the months with the lowest UV index in Union Lake?
What is the UV index reading in December in Union Lake?
Average temperature in December
Union Lake, MI
- Average high temperature in December: 33.4°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in December: 25°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Union Lake, MI
- Average pressure in December: 30.07"Hg
The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Union Lake, MI
- Average wind speed in December: 9.7mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in December
Union Lake, MI
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Union Lake, MI
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is December (1.3").
Average rainfall days in December
Union Lake, MI
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in December
Union Lake, MI
- Average snowfall in December: 2.72"
The month with the highest snowfall is February (5.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Union Lake, MI
- Average snowfall days in December: 14.5 days
The month with the highest number of snowfall days is January (16.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Union Lake, MI
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Union Lake, MI
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is January (9.5 days).
Average UV index in December
Union Lake, MI
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Union Lake, MI
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Union Lake, MI
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Union Lake, Michigan, USA
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