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
Transition into December marks a drop in the average high-temperature, moving from a chilly 48.2°F (9°C) in November to a wintry 38.3°F (3.5°C). Throughout the month of December, Robertsville observes an average nighttime temperature of 27.1°F (-2.7°C).Humidity
In Robertsville, the average relative humidity in December is 84%.Rainfall
In Robertsville, in December, it is raining for 11 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, there are 175.9 rainfall days, and 31.06" (789mm) of precipitation is accumulated.Snowfall
Months with snowfall in Robertsville are January through May, October through December. In Robertsville, in December, snow falls for 13.2 days, with typically accumulated 4.53" (115mm) of snow. In Robertsville, during the entire year, snow falls for 65.9 days and aggregates up to 23.86" (606mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:30 am and sunset at 4:57 pm. On the last day of December, in Robertsville, sunrise is at 7:48 am and sunset at 5:07 pm EST.
Sunshine
The average sunshine in December in Robertsville is 3.4h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 1 in December translates into this advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in Robertsville during December?
What is the average humidity in December in Robertsville?
How many days does it rain in December in Robertsville?
How many days does it snow in December in Robertsville?
What is the month with the shortest days in Robertsville?
What is the average length of the day in December in Robertsville?
When is the sunrise / sunset in December in Robertsville?
How many hours of sunshine does Robertsville have in December?
What is the month with the lowest UV index in Robertsville?
How high is the UV index in December in Robertsville?
Average temperature in December
Robertsville, OH
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in December: 27.1°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in December
Robertsville, OH
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Robertsville, OH
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Robertsville, OH
- Average humidity in December: 84%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in December
Robertsville, OH
- Average rainfall in December: 2.44"
The wettest months (with the highest rainfall) are April and June (3.03").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in December
Robertsville, OH
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is February (9.2 days).
Average snowfall in December
Robertsville, OH
- Average snowfall in December: 4.53"
The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Robertsville, OH
- Average snowfall days in December: 13.2 days
The month with the highest number of snowfall days is January (17.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Robertsville, OH
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Robertsville, OH
- Average sunshine days in December: 10.3 days
The month with the most sunshine days is November (13.6 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in December
Robertsville, OH
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Robertsville, OH
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Robertsville, OH
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January and February (4mi).
Robertsville, Ohio, USA
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