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
Onset of December witnesses a reduction in the average high-temperature, falling from a chilly 45.9°F (7.7°C) in November to a wintry 34.9°F (1.6°C). Cassopolis reports an average low-temperature of 25.9°F (-3.4°C) during the subtly cooler December nights.Humidity
In Cassopolis, the average relative humidity in December is 84%.Rainfall
In Cassopolis, in December, during 5.4 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. Throughout the year, in Cassopolis, there are 112.7 rainfall days, and 10" (254mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Cassopolis, during December, snow falls for 10.1 days and regularly aggregates up to 0.59" (15mm) of snow. In Cassopolis, during the entire year, snow falls for 46.4 days and aggregates up to 5.87" (149mm) of snow.Daylight
December has the shortest days of the year in Cassopolis, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:52 am and sunset at 5:13 pm. On the last day of December, sunrise is at 8:11 am and sunset at 5:23 pm EST.
Sunshine
In December, the average sunshine in Cassopolis is 3.2h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 1 during December translates into these guidelines:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
How cold is it in Cassopolis in December?
What is the average humidity in December in Cassopolis?
How much does it rain in Cassopolis in December?
How many days does it snow in December in Cassopolis?
What is the month with the shortest days in Cassopolis?
What is the average length of the day in December in Cassopolis?
When are sunrise and sunset in December in Cassopolis?
How long on average sun shines in December in Cassopolis?
What are the months with the lowest UV index in Cassopolis?
How high is the UV index in December in Cassopolis?
Average temperature in December
Cassopolis, MI
- Average high temperature in December: 34.9°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in December: 25.9°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in December
Cassopolis, MI
- Average pressure in December: 30.09"Hg
The months with the highest atmospheric pressure are January, March, November and December (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Cassopolis, MI
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Cassopolis, MI
- Average humidity in December: 84%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in December
Cassopolis, MI
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is June (1.34").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in December
Cassopolis, MI
- Average rainfall days in December: 5.4 days
The month with the highest number of rainy days is May (13.8 days).
The months with the least rainy days are January and February (4.1 days).
Average snowfall in December
Cassopolis, MI
- Average snowfall in December: 0.59"
The month with the highest snowfall is January (1.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Cassopolis, MI
- Average snowfall days in December: 10.1 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Cassopolis, MI
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in December
Cassopolis, MI
- Average sunshine days in December: 18.5 days
The months with the most sunshine days are March and November (18.7 days).
The month with the least sunshine days is June (13.2 days).
Average UV index in December
Cassopolis, MI
- Average UV index in December: 1
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Cassopolis, MI
- Average cloud cover in December: 67
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Cassopolis, MI
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, July, August and September (5mi).
Cassopolis, Michigan, USA
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