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
The start of December signals a decrease in the average high-temperature, transitioning from a chilly 44.1°F (6.7°C) in November to an icy 33.3°F (0.7°C). Mount Morris, during December nights, experiences a subtle shift to a low average of 24.6°F (-4.1°C) from the day's heat.Humidity
In December, the average relative humidity is 84%.Rainfall
December is the month with the least rainfall. Rain falls for 6.8 days and accumulates 0.98" (25mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Mount Morris. In Mount Morris, in December, during 9.5 snowfall days, 1.85" (47mm) of snow is typically accumulated. Throughout the year, there are 52.8 snowfall days, and 14.29" (363mm) of snow is accumulated.Daylight
December has the shortest days of the year in Mount Morris, with an average of 9h and 6min of daylight.On the first day of December in Mount Morris, 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 in Mount Morris. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 1 during December translates into these guidelines:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Frequently asked questions
How cold is December in Mount Morris?
What is the average humidity in December in Mount Morris?
What is the driest month in Mount Morris?
How many days does it rain in December in Mount Morris?
How much does it snow in Mount Morris in December?
What is the month with the shortest days in Mount Morris?
How many hours of daylight does Mount Morris have in December?
When are sunrise and sunset in December in Mount Morris?
How long on average sun shines in December in Mount Morris?
What are the months with the lowest UV index in Mount Morris?
What is the UV index intensity in December in Mount Morris?
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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