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
December's onset brings a negligible change in high-temperatures, falling from a comfortable 61.7°F (16.5°C) in November to a fresh 54.9°F (12.7°C). An average low-temperature of 39.7°F (4.3°C) is noted during the nights in December in Blair.Humidity
December is the most humid month in Blair, with an average relative humidity of 77%.Rainfall
December is the month with the most rainfall in Blair. Rain falls for 11.2 days and accumulates 3.23" (82mm) of precipitation.Snowfall
Months with snowfall in Blair are January through March and December. December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 2.3 snowfall days, and 1.69" (43mm) of snow is accumulated.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year in Blair.On the first day of the month, sunrise is at 7:14 am and sunset at 5:15 pm. On the last day of December, sunrise is at 7:31 am and sunset at 5:25 pm EST.
Sunshine
With an average of 5.3h of sunshine, December has the least sunshine of the year in Blair.UV index
In Blair, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 3 in December suggests the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Blair?
What is the most humid month in Blair?
What is the average humidity in December in Blair?
What is the wettest month in Blair?
How many days does it rain in December in Blair?
When does it start snowing in Blair?
What is the month with the shortest days in Blair?
What is the average length of the day in December in Blair?
When is the sunrise / sunset in December in Blair?
What is the month with the least sunshine in Blair?
How many hours of sunshine does Blair have in December?
What is the UV index intensity in December in Blair?
Average temperature in December
Blair, SC
- Average high temperature in December: 54.9°F
The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is January (51.4°F).
- Average low temperature in December: 39.7°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 (35.1°F).
Average pressure in December
Blair, SC
- 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
Blair, SC
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in December
Blair, SC
- Average humidity in December: 77%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).
Average rainfall in December
Blair, SC
- Average rainfall in December: 3.23"
The wettest month (with the highest rainfall) is December (3.23").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in December
Blair, SC
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is October (8.8 days).
Average snowfall in December
Blair, SC
- Average snowfall in December: 0.04"
The month with the highest snowfall is January (0.79").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Blair, SC
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is January (0.9 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
Blair, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in December
Blair, SC
- Average sunshine days in December: 18.6 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is July (12.6 days).
Average UV index in December
Blair, SC
- Average UV index in December: 3
The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Blair, SC
- Average cloud cover in December: 43
The months with the most cloud cover are February and December (Cloud cover 43).
The months with the least cloud cover are June, July and October (Cloud cover 30).
Average visibility in December
Blair, 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).
Blair, South Carolina, USA
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