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
A shift in Florissant's weather is observed as November turns into December, with the average high temperature reducing from a cool 52.9°F (11.6°C) to an icy 41.9°F (5.5°C). December in Florissant is noted for a mean low-temperature of 30°F (-1.1°C).Humidity
The average relative humidity in December in Florissant is 76%.Rainfall
In Florissant, in December, during 8.2 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. Throughout the year, in Florissant, there are 149 rainfall days, and 31.61" (803mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Florissant, in December, during 3.7 snowfall days, 2.01" (51mm) of snow is typically accumulated. Throughout the year, there are 19.5 snowfall days, and 8.82" (224mm) of snow is accumulated.Daylight
The month with the shortest days in Florissant is December, with an average of 9h and 30min of daylight.On the first day of December in Florissant, sunrise is at 7:01 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:49 pm CST.
Sunshine
The average sunshine in December is 4.9h.UV index
The months with the lowest UV index in Florissant, Missouri, 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 ordinary individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Frequently asked questions
How cold does it get in Florissant in December?
What is the average humidity in December in Florissant?
How many days does it rain in December in Florissant?
How many days does it snow in December in Florissant?
What is the month with the shortest days in Florissant?
What is the average length of the day in December in Florissant?
When is the sunrise / sunset in December in Florissant?
How long on average sun shines in December in Florissant?
What are the months with the lowest UV index in Florissant?
How high is the UV index in December in Florissant?
Average temperature in December
Florissant, MO
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in December: 30°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in December
Florissant, MO
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Florissant, MO
- Average wind speed in December: 8.7mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity in December
Florissant, MO
- Average humidity in December: 76%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Florissant, MO
- Average rainfall in December: 2.05"
The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is February (1.69").
Average rainfall days in December
Florissant, MO
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
Florissant, MO
- Average snowfall in December: 2.01"
The month with the highest snowfall is February (2.95").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Florissant, MO
- Average snowfall days in December: 3.7 days
The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Florissant, MO
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Florissant, MO
- Average sunshine days in December: 18.9 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is May (11 days).
Average UV index in December
Florissant, 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
Florissant, MO
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Florissant, 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).
Florissant, Missouri, USA
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