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
A change in temperatures is noted as November gives way to December, with average highs reducing from a chilly 46°F (7.8°C) to an icy 36.5°F (2.5°C). Union Pier registers a subtle dip to an average of 29.1°F (-1.6°C) during the nights of December.Humidity
In December, the average relative humidity in Union Pier is 81%.Rainfall
In Union Pier, in December, it is raining for 8.5 days, with typically 1.26" (32mm) of accumulated precipitation. Throughout the year, there are 152.6 rainfall days, and 26.3" (668mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In Union Pier, during December, snow falls for 9.6 days and regularly aggregates up to 1.97" (50mm) of snow. Throughout the year, in Union Pier, there are 44 snowfall days, and 9.72" (247mm) of snow is accumulated.Daylight
December has the shortest days of the year in Union Pier, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:55 am and sunset at 5:16 pm. On the last day of December, sunrise is at 8:14 am and sunset at 5:26 pm EST.
Sunshine
In Union Pier, Michigan, the average sunshine in December is 3.7h.UV index
December is the month with the lowest UV index in Union Pier, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: A maximum high UV index of 1 in December translates into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Union Pier in December?
What is the average humidity in December in Union Pier?
How much does it rain in Union Pier in December?
How much does it snow in Union Pier in December?
What is the month with the shortest days in Union Pier?
How many hours of daylight does Union Pier have in December?
When are sunrise and sunset in December in Union Pier?
How long on average sun shines in December in Union Pier?
When is the lowest UV index in Union Pier?
How high is the UV index in December in Union Pier?
Average temperature in December
Union Pier, MI
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in December: 29.1°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in December
Union Pier, MI
- Average pressure in December: 30.09"Hg
The months with the highest atmospheric pressure are January and November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Union Pier, MI
- Average wind speed in December: 12.2mph
The windiest month (with the highest average wind speed) is January (12.8mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in December
Union Pier, MI
- Average humidity in December: 81%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Union Pier, MI
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in December
Union Pier, MI
- Average rainfall days in December: 8.5 days
The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is January (6 days).
Average snowfall in December
Union Pier, MI
- Average snowfall in December: 1.97"
The month with the highest snowfall is January (2.6").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Union Pier, MI
- Average snowfall days in December: 9.6 days
The month with the highest number of snowfall days is January (13.4 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 Pier, MI
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 3h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Union Pier, MI
- Average sunshine days in December: 13.3 days
The month with the most sunshine days is March (14.4 days).
The month with the least sunshine days is January (10 days).
Average UV index in December
Union Pier, MI
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Union Pier, MI
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in December
Union Pier, MI
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Union Pier, Michigan, USA
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