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
Black Rock in December experiences a subtle temperature decline, with average high-temperatures reducing from a moderate 57.6°F (14.2°C) in November to a frosty 48.4°F (9.1°C). During the nights in December, an average low-temperature of 36.1°F (2.3°C) is observed in Black Rock.Humidity
The average relative humidity in December is 76%.Rainfall
In Black Rock, in December, it is raining for 9.7 days, with typically 2.4" (61mm) of accumulated precipitation. In Black Rock, Arkansas, during the entire year, the rain falls for 145.5 days and collects up to 35.47" (901mm) of precipitation.Snowfall
January through March, October through December are months with snowfall in Black Rock. In Black Rock, in December, snow falls for 0.7 days, with typically accumulated 0.59" (15mm) of snow. Throughout the year, in Black Rock, there are 7.1 snowfall days, and 3.82" (97mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 6:57 am and sunset at 4:50 pm. On the last day of December, sunrise is at 7:15 am and sunset at 5:00 pm CST.
Sunshine
The average sunshine in December in Black Rock is 5.2h.UV index
The months with the lowest UV index in Black Rock, Arkansas, are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Frequently asked questions
What is the temperature in December in Black Rock?
What is the average humidity in December in Black Rock?
How much does it rain in Black Rock in December?
How much does it snow in Black Rock in December?
What is the month with the shortest days in Black Rock?
What is the average length of the day in December in Black Rock?
What time are sunrise and sunset in December in Black Rock?
How many hours of sunshine does Black Rock have in December?
When is the lowest UV index in Black Rock?
What is the UV index reading in December in Black Rock?
Average temperature in December
Black Rock, AR
- Average high temperature in December: 48.4°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in December: 36.1°F
The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in December
Black Rock, AR
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Black Rock, AR
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in December
Black Rock, AR
- Average humidity in December: 76%
The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (67%).
Average rainfall in December
Black Rock, AR
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is April (4.61").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in December
Black Rock, AR
- Average rainfall days in December: 9.7 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in December
Black Rock, AR
- Average snowfall in December: 0.59"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in December
Black Rock, AR
- Average snowfall days in December: 0.7 days
The month with the highest number of snowfall days is January (2.7 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
Black Rock, AR
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 5h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in December
Black Rock, AR
- Average sunshine days in December: 19 days
The month with the most sunshine days is October (19.8 days).
The months with the least sunshine days are April and May (13.8 days).
Average UV index in December
Black Rock, AR
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Black Rock, AR
- Average cloud cover in December: 44
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in December
Black Rock, AR
- 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).
Black Rock, Arkansas, USA
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