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 brings a decrease in the average high-temperature, shifting from a frosty 43.7°F (6.5°C) in November to a cold 32.4°F (0.2°C). During the nights of December, Crystal records an average low-temperature of 24.3°F (-4.3°C), reflecting a modest decrease from daytime highs.Humidity
In Crystal, the average relative humidity in December is 85%.Rainfall
In Crystal, in December, during 8.5 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. In Crystal, Michigan, during the entire year, the rain falls for 137.5 days and collects up to 20.59" (523mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Crystal. In Crystal, in December, during 15.7 snowfall days, 3.86" (98mm) of snow is typically accumulated. In Crystal, Michigan, during the entire year, snow falls for 70.9 days and aggregates up to 17.95" (456mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 7:52 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 5:14 pm EST.
Sunshine
In Crystal, the average sunshine in December is 3h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A typical high UV index of 1 in December suggests the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in Crystal?
What is the average humidity in December in Crystal?
How much does it rain in Crystal in December?
How much does it snow in Crystal in December?
What is the month with the shortest days in Crystal?
How many hours of daylight does Crystal have in December?
When are sunrise and sunset in December in Crystal?
How long on average sun shines in December in Crystal?
What are the months with the lowest UV index in Crystal?
How high is the UV index in December in Crystal?
Average temperature in December
Crystal, MI
- Average high temperature in December: 32.4°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 (26.4°F).
- Average low temperature in December: 24.3°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 (16.5°F).
Average pressure in December
Crystal, 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 (29.92"Hg).
Average wind speed in December
Crystal, MI
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in December
Crystal, MI
- Average humidity in December: 85%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Crystal, MI
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is November (1.18").
Average rainfall days in December
Crystal, MI
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in December
Crystal, MI
- Average snowfall in December: 3.86"
The month with the highest snowfall is January (4.84").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Crystal, MI
- Average snowfall days in December: 15.7 days
The month with the highest number of snowfall days is January (18.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Crystal, MI
- Average daylight in December: 9h and 0min
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 0min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in December
Crystal, MI
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in December
Crystal, MI
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Crystal, MI
- Average cloud cover in December: 69
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Crystal, MI
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, October and November (6mi).
The months with the lowest visibility are January, February, September and December (5mi).
Crystal, Michigan, USA
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