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
In Mount Morris, the average high-temperature in December decreases from a chilly 44.1°F (6.7°C) in November to a wintry 33.3°F (0.7°C). December sees a slight dip to an average low temperature of 24.6°F (-4.1°C) from the daytime highs.Humidity
In December, the average relative humidity in Mount Morris is 84%.Rainfall
The month with the least rainfall in Mount Morris is December, when the rain falls for 6.8 days and typically collects 0.98" (25mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Mount Morris, during December, snow falls for 9.5 days and regularly aggregates up to 1.85" (47mm) of snow. In Mount Morris, during the entire year, snow falls for 52.8 days and aggregates up to 14.29" (363mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:47 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 8:06 am and sunset at 5:09 pm EST.
Sunshine
In Mount Morris, the average sunshine in December is 3.2h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
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 Mount Morris have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Mount Morris have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Mount Morris, MI
- Average high temperature in December: 33.3°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 24.6°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in December
Mount Morris, MI
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Mount Morris, MI
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is February (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in December
Mount Morris, MI
- Average humidity in December: 84%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Mount Morris, MI
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is May (2.48").
The driest month (with the least rainfall) is December (0.98").
Average rainfall days in December
Mount Morris, MI
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in December
Mount Morris, MI
- Average snowfall in December: 1.85"
The month with the highest snowfall is February (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Mount Morris, MI
- Average snowfall days in December: 9.5 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mount Morris, 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 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Mount Morris, MI
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Mount Morris, MI
- Average UV index in December: 1
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Mount Morris, MI
- Average cloud cover in December: 66
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
Mount Morris, 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).
Mount Morris, Michigan, USA
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