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 start of December signals a gentle decrease in the average high-temperature, transitioning from a moderate 60.3°F (15.7°C) in November to a fresh 54°F (12.2°C). In Simpson, in December, the average low-temperature is an icy 39.4°F (4.1°C).Humidity
In Simpson, the average relative humidity in December is 78%.Rainfall
In Simpson, during December, the rain falls for 10.8 days and regularly aggregates up to 2.64" (67mm) of precipitation. Throughout the year, there are 165.6 rainfall days, and 33.94" (862mm) of precipitation is accumulated.Snowfall
January through March and December are months with snowfall in Simpson. December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.43" (11mm) of snow. Throughout the year, there are 3.5 snowfall days, and 2.6" (66mm) of snow is accumulated.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year in Simpson.On the first day of December, sunrise is at 7:00 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:06 pm EST.
Sunshine
The months with the least sunshine are January and December, with an average of 5.5h of sunshine.UV index
The average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 3 in December, converts into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. When the Sun is at its strongest around midday, find shade and limit exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What is the average humidity in December?
How much does it rain in December?
When does it start snowing?
What is the month with the shortest days?
How many hours of daylight does Simpson have in December?
When is the sunrise / sunset in December?
What are the months with the least sunshine?
How long on average sun shines in December?
What is the UV index intensity in December?
Average temperature in December
Simpson, NC
- Average high temperature in December: 54°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (48.9°F).
- Average low temperature in December: 39.4°F
The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in December
Simpson, NC
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Simpson, NC
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Simpson, NC
- Average humidity in December: 78%
The months with the highest relative humidity are May, July, August and September (79%).
The month with the lowest relative humidity is January (74%).
Average rainfall in December
Simpson, NC
- Average rainfall in December: 2.64"
The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.97").
Average rainfall days in December
Simpson, NC
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is July (19.6 days).
The months with the least rainy days are October and November (9.4 days).
Average snowfall in December
Simpson, NC
- Average snowfall in December: 0.43"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Simpson, NC
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Simpson, NC
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 5h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in December
Simpson, NC
- Average sunshine days in December: 19.2 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is July (8.6 days).
Average UV index in December
Simpson, NC
- Average UV index in December: 3
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Simpson, NC
- Average cloud cover in December: 41
The months with the most cloud cover are February and March (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility in December
Simpson, NC
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are August and September (5mi).
Simpson, North Carolina, USA
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