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
The onset of December introduces a moderate change in Marthasville's weather, with average high-temperatures falling from November's fresh 53.8°F (12.1°C) to a frosty 43.2°F (6.2°C). Marthasville's nighttime temperature during December is consistently averaged at a subzero cold 29.7°F (-1.3°C).Humidity
In Marthasville, the average relative humidity in December is 76%.Rainfall
In Marthasville, during December, the rain falls for 6.5 days and regularly aggregates up to 1.57" (40mm) of precipitation. In Marthasville, during the entire year, the rain falls for 133.1 days and collects up to 27.24" (692mm) of precipitation.Snowfall
January through March, September, November and December are months with snowfall in Marthasville. In December, in Marthasville, it is snowing for 3.5 days. Throughout December, 1.22" (31mm) of snow is accumulated. Throughout the year, in Marthasville, there are 16.6 snowfall days, and 5.87" (149mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of December in Marthasville, Missouri, sunrise is at 7:03 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:53 pm CST.
Sunshine
In December, the average sunshine is 4.8h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Marthasville. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 2 during December translates into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Frequently asked questions
How cold is it in Marthasville in December?
What is the average humidity in December in Marthasville?
How much does it rain in Marthasville in December?
How much does it snow in Marthasville in December?
What is the month with the shortest days in Marthasville?
What is the average length of the day in December in Marthasville?
When are sunrise and sunset in December in Marthasville?
How long on average sun shines in December in Marthasville?
What is the month with the lowest UV index in Marthasville?
How high is the UV index in December in Marthasville?
Average temperature in December
Marthasville, MO
- Average high temperature in December: 43.2°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (38.1°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in December
Marthasville, 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
Marthasville, MO
- Average wind speed in December: 8mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Marthasville, 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 (72%).
Average rainfall in December
Marthasville, MO
- Average rainfall in December: 1.57"
The wettest months (with the highest rainfall) are April and May (3.23").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days in December
Marthasville, MO
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in December
Marthasville, MO
- Average snowfall in December: 1.22"
The month with the highest snowfall is February (2.09").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in December
Marthasville, MO
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Marthasville, 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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in December
Marthasville, MO
- Average sunshine days in December: 20.6 days
The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in December
Marthasville, 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
Marthasville, MO
- Average cloud cover in December: 48
The months with the most cloud cover are January and February (Cloud cover 50).
The months with the least cloud cover are June, July and August (Cloud cover 30).
Average visibility in December
Marthasville, MO
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, September, October, November and December (6mi).
The months with the lowest visibility are May and August (5mi).
Marthasville, Missouri, USA
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