December weather forecastRoscommon, MI
December
Weather in December
December, the first month of the winter in Roscommon, is also a subzero cold month, with temperature in the range of an average high of 30.2°F (-1°C) and an average low of 22.1°F (-5.5°C).Temperature
December ushers in a slight temperature change, with average high-temperatures reducing from November's wintry 41°F (5°C) to a subzero cold 30.2°F (-1°C). Consistently, Roscommon reports average nighttime temperatures of 22.1°F (-5.5°C) during December, a marginal step down from its daytime highs.Humidity
The average relative humidity in December in Roscommon, Michigan, is 86%.Rainfall
In December, in Roscommon, the rain falls for 7.1 days. Throughout December, 1.46" (37mm) of precipitation is accumulated. Throughout the year, there are 131.5 rainfall days, and 21.02" (534mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Roscommon, in December, during 18.6 snowfall days, 6.3" (160mm) of snow is typically accumulated. In Roscommon, during the entire year, snow falls for 90.1 days and aggregates up to 32.91" (836mm) of snow.Daylight
The month with the shortest days in Roscommon is December, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:55 am and sunset at 4:59 pm. On the last day of December, in Roscommon, Michigan, sunrise is at 8:14 am and sunset at 5:08 pm EST.
Sunshine
In Roscommon, the average sunshine in December is 2.3h.UV index
January, February, 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 exposure to the Sun's UV radiation for the ordinary person.Note: In December, a daily UV index of 1 turns into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Enhance your sun protection with tightly woven, yet airy clothing. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Roscommon, MI
- Average high temperature in December: 30.2°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (24.1°F).
- Average low temperature in December: 22.1°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in December
Roscommon, 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 (29.92"Hg).
Average wind speed in December
Roscommon, MI
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in December
Roscommon, MI
- Average humidity in December: 86%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is May (72%).
Average rainfall in December
Roscommon, MI
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is October (2.64").
The driest month (with the least rainfall) is September (1.1").
Average rainfall days in December
Roscommon, MI
- Average rainfall days in December: 7.1 days
The month with the highest number of rainy days is October (16.2 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in December
Roscommon, MI
- Average snowfall in December: 6.3"
The month with the highest snowfall is January (8.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Roscommon, MI
- Average snowfall days in December: 18.6 days
The month with the highest number of snowfall days is January (21.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Roscommon, MI
- Average daylight in December: 8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 2h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).
Average sunshine days in December
Roscommon, MI
- Average sunshine days in December: 9.5 days
The month with the most sunshine days is September (16.3 days).
The month with the least sunshine days is January (7.8 days).
Average UV index in December
Roscommon, MI
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Roscommon, MI
- Average cloud cover in December: 75
The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Roscommon, MI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June and July (6mi).
The months with the lowest visibility are January and February (4mi).
