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
Foristell's weather changes with the onset of December, slightly falling from a cool 52.7°F (11.5°C) in November to a cold 41.7°F (5.4°C). Foristell experiences an average nighttime temperature of 29.1°F (-1.6°C) in the month of December.Humidity
The average relative humidity in December is 76%.Rainfall
In Foristell, during December, the rain falls for 7.2 days and regularly aggregates up to 1.85" (47mm) of precipitation. In Foristell, during the entire year, the rain falls for 145 days and collects up to 30.04" (763mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In December, it is snowing for 4.3 days. Throughout December, 1.65" (42mm) of snow is accumulated. Throughout the year, there are 20.1 snowfall days, and 9.06" (230mm) of snow is accumulated.Daylight
The month with the shortest days in Foristell, Missouri, is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:03 am and sunset at 4:42 pm. On the last day of December, in Foristell, sunrise is at 7:22 am and sunset at 4:52 pm CST.
Sunshine
In December, the average sunshine is 4.9h.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 estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during December translates into these guidelines:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
Is it cold in Foristell during December?
What is the average humidity in December in Foristell?
How much does it rain in Foristell in December?
How much does it snow in Foristell in December?
What is the month with the shortest days in Foristell?
How many hours of daylight does Foristell have in December?
What time are sunrise and sunset in December in Foristell?
How long on average sun shines in December in Foristell?
What is the month with the lowest UV index in Foristell?
What is the UV index intensity in December in Foristell?
Average temperature in December
Foristell, MO
- Average high temperature in December: 41.7°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in December: 29.1°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Foristell, 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
Foristell, MO
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in December
Foristell, MO
- Average humidity in December: 76%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Foristell, MO
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days in December
Foristell, MO
- Average rainfall days in December: 7.2 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in December
Foristell, MO
- Average snowfall in December: 1.65"
The month with the highest snowfall is January (2.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Foristell, MO
- Average snowfall days in December: 4.3 days
The month with the highest number of snowfall days is February (6.3 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
Foristell, 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 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in December
Foristell, MO
- Average sunshine days in December: 19.5 days
The months with the most sunshine days are January, October and December (19.5 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in December
Foristell, MO
- Average UV index in December: 2
The months with the highest UV index are 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
Foristell, MO
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 29).
Average visibility in December
Foristell, MO
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Foristell, Missouri, USA
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