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 involves a decrease in temperature, down from a fresh 51.8°F (11°C) in November to a wintry 39.9°F (4.4°C). Crystal Lakes's temperature lowers to a mean of 26.8°F (-2.9°C) during the nights in December.Humidity
The average relative humidity in December is 76%.Rainfall
In Crystal Lakes, during December, the rain falls for 5.8 days and regularly aggregates up to 1.34" (34mm) of precipitation. Throughout the year, in Crystal Lakes, there are 138.2 rainfall days, and 27.72" (704mm) of precipitation is accumulated.Snowfall
Months with snowfall in Crystal Lakes are January through May, October through December. In December, it is snowing for 4.5 days. Throughout December, 1.34" (34mm) of snow is accumulated. In Crystal Lakes, during the entire year, snow falls for 22.8 days and aggregates up to 10" (254mm) of snow.Daylight
December has the shortest days of the year in Crystal Lakes, Missouri, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:18 am and sunset at 4:53 pm. On the last day of December, in Crystal Lakes, sunrise is at 7:36 am and sunset at 5:03 pm CST.
Sunshine
In Crystal Lakes, the average sunshine in December is 5.3h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 2 in December leads to these guidelines:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
How cold is it in Crystal Lakes in December?
What is the average humidity in December in Crystal Lakes?
How much does it rain in Crystal Lakes in December?
How much does it snow in Crystal Lakes in December?
What is the month with the shortest days in Crystal Lakes?
What is the average length of the day in December in Crystal Lakes?
What time are sunrise and sunset in December in Crystal Lakes?
How long on average sun shines in December in Crystal Lakes?
What is the month with the lowest UV index in Crystal Lakes?
How high is the UV index in December in Crystal Lakes?
Average temperature in December
Crystal Lakes, MO
- Average high temperature in December: 39.9°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in December: 26.8°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Crystal Lakes, MO
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Crystal Lakes, MO
- Average wind speed in December: 8.9mph
The windiest months (with the highest average wind speed) are March and April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Crystal Lakes, MO
- Average humidity in December: 76%
The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are October and November (71%).
Average rainfall in December
Crystal Lakes, MO
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in December
Crystal Lakes, MO
- Average rainfall days in December: 5.8 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in December
Crystal Lakes, MO
- Average snowfall in December: 1.34"
The month with the highest snowfall is February (3.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Crystal Lakes, MO
- Average snowfall days in December: 4.5 days
The month with the highest number of snowfall days is February (6.3 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 Lakes, MO
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in December
Crystal Lakes, MO
- Average sunshine days in December: 21 days
The month with the most sunshine days is December (21 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in December
Crystal Lakes, MO
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Crystal Lakes, MO
- Average cloud cover in December: 42
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in December
Crystal Lakes, MO
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Crystal Lakes, Missouri, USA
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