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 onset of December entails a subtle temperature shift, as the average high-temperature eases from a moderate 57.2°F (14°C) in November to a frosty 49.5°F (9.7°C). The low-temperature average for Blockhouse during December stands at a wintry 35.2°F (1.8°C).Humidity
The most humid month is December, with an average relative humidity of 79%.Rainfall
In Blockhouse, during December, the rain falls for 11.1 days and regularly aggregates up to 1.54" (39mm) of precipitation. Throughout the year, there are 149 rainfall days, and 18.74" (476mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, October through December. In December, it is snowing for 3.6 days. Throughout December, 0.63" (16mm) of snow is accumulated. In Blockhouse, during the entire year, snow falls for 18.9 days and aggregates up to 3.58" (91mm) 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 the month, sunrise is at 7:27 am and sunset at 5:22 pm. On the last day of December, sunrise is at 7:45 am and sunset at 5:32 pm EST.
Sunshine
The average sunshine in December is 5.2h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Around midday, solar radiation is most harmful; hence, exposure should be limited. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the most humid month?
What is the average humidity in December in Blockhouse?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Blockhouse have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Blockhouse, TN
- Average high temperature in December: 49.5°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (44.8°F).
- Average low temperature in December: 35.2°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).
Average pressure in December
Blockhouse, TN
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Blockhouse, TN
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in December
Blockhouse, TN
- Average humidity in December: 79%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (72%).
Average rainfall in December
Blockhouse, TN
- Average rainfall in December: 1.54"
The wettest month (with the highest rainfall) is July (2.2").
The driest month (with the least rainfall) is October (1.18").
Average rainfall days in December
Blockhouse, TN
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in December
Blockhouse, TN
- Average snowfall in December: 0.63"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in December
Blockhouse, TN
- Average snowfall days in December: 3.6 days
The month with the highest number of snowfall days is January (5.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Blockhouse, TN
- 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 1min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
Blockhouse, TN
- Average sunshine days in December: 17 days
The month with the most sunshine days is November (19.3 days).
The months with the least sunshine days are February and July (12.5 days).
Average UV index in December
Blockhouse, TN
- 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, February and December (UV index 2).
Average cloud cover in December
Blockhouse, TN
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in December
Blockhouse, TN
- Average visibility in December: 6mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).
Blockhouse, Tennessee, USA
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