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
Stepping into December, Martinsville observes a temperature decline, with the average high falling from November's frosty 49.6°F (9.8°C) to an icy 37°F (2.8°C). Martinsville, during the month of December, experiences an average low-temperature of 24.1°F (-4.4°C).Humidity
In December, the average relative humidity is 78%.Rainfall
In December, in Martinsville, the rain falls for 5.4 days. Throughout December, 0.94" (24mm) of precipitation is accumulated. In Martinsville, during the entire year, the rain falls for 129.2 days and collects up to 25.35" (644mm) of precipitation.Snowfall
Months with snowfall in Martinsville are January through May, October through December. In Martinsville, in December, during 4.7 snowfall days, 1.42" (36mm) of snow is typically accumulated. Throughout the year, in Martinsville, there are 26.5 snowfall days, and 12.64" (321mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:20 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:00 pm CST.
Sunshine
In December, the average sunshine in Martinsville is 5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 2 during December leads to these advisories:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
How cold is it in Martinsville in December?
What is the average humidity in December in Martinsville?
How many days does it rain in December in Martinsville?
How much does it snow in Martinsville in December?
What is the month with the shortest days in Martinsville?
What is the average length of the day in December in Martinsville?
What time are sunrise and sunset in December in Martinsville?
How long on average sun shines in December in Martinsville?
What is the month with the lowest UV index in Martinsville?
How high is the UV index in December in Martinsville?
Average temperature in December
Martinsville, MO
- Average high temperature in December: 37°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in December: 24.1°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in December
Martinsville, 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 (29.88"Hg).
Average wind speed in December
Martinsville, MO
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is March (10mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in December
Martinsville, MO
- Average humidity in December: 78%
The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Martinsville, MO
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is June (3.86").
The driest months (with the least rainfall) are January and February (0.91").
Average rainfall days in December
Martinsville, MO
- Average rainfall days in December: 5.4 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (4.1 days).
Average snowfall in December
Martinsville, MO
- Average snowfall in December: 1.42"
The month with the highest snowfall is January (3.62").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Martinsville, MO
- Average snowfall days in December: 4.7 days
The month with the highest number of snowfall days is January (8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Martinsville, MO
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in December
Martinsville, MO
- Average sunshine days in December: 20.3 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Martinsville, 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
Martinsville, MO
- Average cloud cover in December: 45
The months with the most cloud cover are January and March (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Martinsville, 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).
Martinsville, Missouri, USA
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