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
Stepping into December, Ontonagon observes a temperature decline, with the average high falling from November's wintry 37.8°F (3.2°C) to a subzero cold 27.5°F (-2.5°C). Ontonagon indicates a consistently low-temperature of 21°F (-6.1°C) during the nights of December.Humidity
In Ontonagon, Michigan, the average relative humidity in December is 85%.Rainfall
In Ontonagon, Michigan, in December, it is raining for 6.1 days, with typically 1.81" (46mm) of accumulated precipitation. Throughout the year, there are 122.6 rainfall days, and 22.56" (573mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall in Ontonagon is December, when snow falls for 20.5 days and typically aggregates up to 6.65" (169mm) of snow.Daylight
December has the shortest days of the year in Ontonagon, with an average of 8h and 36min of daylight.On the first day of December, sunrise is at 8:22 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 8:42 am and sunset at 5:18 pm EST.
Sunshine
In December, the average sunshine is 2h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Ontonagon?
What is the average humidity in December in Ontonagon?
How many days does it rain in December in Ontonagon?
When does it snow the most in Ontonagon?
How much does it snow in Ontonagon in December?
What is the month with the shortest days in Ontonagon?
How many hours of daylight does Ontonagon have in December?
What time are sunrise and sunset in December in Ontonagon?
How many hours of sunshine does Ontonagon have in December?
When is the lowest UV index in Ontonagon?
What is the UV index reading in December in Ontonagon?
Average temperature in December
Ontonagon, MI
- Average high temperature in December: 27.5°F
The warmest month (with the highest average high temperature) is August (69.4°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in December: 21°F
The month with the highest average low temperature is August (58.1°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in December
Ontonagon, MI
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Ontonagon, MI
- Average wind speed in December: 12.5mph
The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is June (7.6mph).
Average humidity in December
Ontonagon, MI
- Average humidity in December: 85%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is May (75%).
Average rainfall in December
Ontonagon, MI
- Average rainfall in December: 1.81"
The wettest months (with the highest rainfall) are April, June, August and October (2.28").
The driest month (with the least rainfall) is February (1.22").
Average rainfall days in December
Ontonagon, MI
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is October (14.6 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in December
Ontonagon, MI
- Average snowfall in December: 6.65"
The month with the highest snowfall is December (6.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Ontonagon, MI
- Average snowfall days in December: 20.5 days
The month with the highest number of snowfall days is January (22.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Ontonagon, MI
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 2h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).
Average sunshine days in December
Ontonagon, MI
- Average sunshine days in December: 6.5 days
The month with the most sunshine days is July (15.5 days).
The month with the least sunshine days is January (5.6 days).
Average UV index in December
Ontonagon, MI
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Ontonagon, MI
- Average cloud cover in December: 80
The month with the most cloud cover is January (Cloud cover 84).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in December
Ontonagon, MI
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).
Ontonagon, Michigan, USA
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