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 arrival of December suggests a slight decrease in the average high-temperature, moving from a refreshing 61.3°F (16.3°C) in November to a cool 54.5°F (12.5°C). In Wallace, the expected average low-temperature for December is a cold 40.1°F (4.5°C).Humidity
May, September and December, with an average relative humidity of 75%, are the most humid months.Rainfall
In December, the rain falls for 10.6 days. Throughout December, 3.03" (77mm) of precipitation is accumulated. Throughout the year, there are 159.8 rainfall days, and 32.36" (822mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Wallace, in December, during 0.1 snowfall days, 0.12" (3mm) of snow is typically accumulated. In Wallace, during the entire year, snow falls for 2.3 days and aggregates up to 1.46" (37mm) of snow.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:08 am and sunset at 5:08 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:18 pm EST.
Sunshine
January and December, with an average of 5.6h of sunshine, are months with the least sunshine.UV index
In December, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high UV index of 3 in December translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What are the most humid months?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Wallace have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
How high is the UV index in December?
Average temperature in December
Wallace, SC
- Average high temperature in December: 54.5°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 (50.9°F).
- Average low temperature in December: 40.1°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (35.8°F).
Average pressure in December
Wallace, SC
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Wallace, SC
- Average wind speed in December: 6.7mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Wallace, SC
- Average humidity in December: 75%
The months with the highest relative humidity are May, September and December (75%).
The months with the lowest relative humidity are January, March, July and November (72%).
Average rainfall in December
Wallace, SC
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is January (1.81").
Average rainfall days in December
Wallace, SC
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (8.2 days).
Average snowfall in December
Wallace, SC
- Average snowfall in December: 0.12"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Wallace, SC
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is February (1.1 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
Wallace, SC
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in December
Wallace, SC
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is November (21.2 days).
The months with the least sunshine days are July and August (9.9 days).
Average UV index in December
Wallace, SC
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Wallace, SC
- Average cloud cover in December: 40
The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are June and October (Cloud cover 29).
Average visibility in December
Wallace, SC
- 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).
Wallace, South Carolina, USA
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