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 is characterized by a reduction in the average high-temperature, from a chilly 45°F (7.2°C) in November to a cold 33.8°F (1°C). December nights experience a minor temperature downturn to a freezing cold 25.7°F (-3.5°C).Humidity
The average relative humidity in December is 83%.Rainfall
The month with the least rainfall is December, when the rain falls for 9.4 days and typically collects 1.61" (41mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 15 days. Throughout December, 3.27" (83mm) of snow is accumulated. Throughout the year, in Romeo, there are 68.4 snowfall days, and 20.55" (522mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:43 am and sunset at 4:59 pm. On the last day of December, sunrise is at 8:02 am and sunset at 5:08 pm EST.
Sunshine
In December, the average sunshine is 3.5h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 1 in December converts into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Boost your sun resistance with garments that are densely woven yet spacious. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
What is the driest month?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Romeo have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Romeo, MI
- Average high temperature in December: 33.8°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in December
Romeo, 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
Romeo, MI
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Romeo, MI
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Romeo, MI
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is April (3.03").
The driest month (with the least rainfall) is December (1.61").
Average rainfall days in December
Romeo, MI
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (7 days).
Average snowfall in December
Romeo, MI
- Average snowfall in December: 3.27"
The month with the highest snowfall is February (5.75").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Romeo, MI
- Average snowfall days in December: 15 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Romeo, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Romeo, MI
- Average sunshine days in December: 11.1 days
The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in December
Romeo, MI
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Romeo, MI
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Romeo, MI
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Romeo, Michigan, USA
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