December weather forecastShelby, NC
December
Weather in December
The first month of the winter, December, is still a cool month in Shelby, North Carolina, with an average temperature fluctuating between 52.2°F (11.2°C) and 37°F (2.8°C).Temperature
Transition into December subtly marks a drop in the average high-temperature, moderately moving from a moderate 58.6°F (14.8°C) in November to a fresh 52.2°F (11.2°C). December witnesses an average nighttime temperature of 37°F (2.8°C).Humidity
The months with the highest humidity in Shelby are May and December, with an average relative humidity of 76%.Rainfall
The month with the most rainfall is December, when the rain falls for 11.5 days and typically aggregates up to 3.46" (88mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. December is the month with the most snowfall. Snow falls for 0.7 days and accumulates 2.36" (60mm) of snow.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:17 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:24 pm EST.
Sunshine
With an average of 5.4h of sunshine, December has the least sunshine of the year.UV index
January 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 low health risk from exposure to the Sun's UV rays for the average person.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Shelby, NC
- Average high temperature in December: 52.2°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (47.8°F).
- Average low temperature in December: 37°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 (32.2°F).
Average pressure in December
Shelby, NC
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Shelby, NC
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in December
Shelby, NC
- Average humidity in December: 76%
The months with the highest relative humidity are May and December (76%).
The month with the lowest relative humidity is July (70%).
Average rainfall in December
Shelby, NC
- Average rainfall in December: 3.46"
The wettest month (with the highest rainfall) is December (3.46").
The driest months (with the least rainfall) are September and October (2.13").
Average rainfall days in December
Shelby, NC
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in December
Shelby, NC
- Average snowfall in December: 2.36"
The month with the highest snowfall is December (2.36").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Shelby, NC
- Average snowfall days in December: 0.7 days
The month with the highest number of snowfall days is February (2 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
Shelby, NC
- Average daylight in December: 9h and 48min
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 24min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Shelby, NC
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in December
Shelby, NC
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Shelby, NC
- Average cloud cover in December: 42
The months with the most cloud cover are February, March and December (Cloud cover 42).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in December
Shelby, NC
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
