December weather forecastBlack Diamond, FL
December
Weather in December
December, the first month of the winter in Black Diamond, is also an agreeable month, with an average temperature fluctuating between 54.7°F (12.6°C) and 69.4°F (20.8°C).Temperature
With the advent of December, Black Diamond experiences an average high-temperature of a pleasant 69.4°F (20.8°C), mirroring a close resemblance to the previous month. Black Diamond reports an average low-temperature of 54.7°F (12.6°C) during the nights of December.Humidity
In December, the average relative humidity is 77%.Rainfall
In December, the rain falls for 8.8 days. Throughout December, 2.72" (69mm) of precipitation is accumulated. Throughout the year, there are 178.4 rainfall days, and 34.06" (865mm) of precipitation is accumulated.Snowfall
In Black Diamond, snow does not fall in February through December.Daylight
December has the shortest days of the year, with an average of 10h and 18min of daylight.On the first day of the month, sunrise is at 7:06 am and sunset at 5:32 pm. On the last day of December, sunrise is at 7:23 am and sunset at 5:43 pm EST.
Sunshine
December has the least sunshine of the year in Black Diamond, with an average of 6.3h of sunshine.UV index
The average daily maximum UV index in December is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 5 in December interprets into the following advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. To protect against the Sun's most potent rays, avoid direct exposure around midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Black Diamond, FL
- Average high temperature in December: 69.4°F
The warmest month (with the highest average high temperature) is August (89.2°F).
The month with the lowest average high temperature is January (65.3°F).
- Average low temperature in December: 54.7°F
The month with the highest average low temperature is August (77.2°F).
The coldest month (with the lowest average low temperature) is January (49.6°F).
Average pressure in December
Black Diamond, FL
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in December
Black Diamond, FL
- Average wind speed in December: 6.8mph
The windiest months (with the highest average wind speed) are March and April (7.6mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in December
Black Diamond, FL
- Average humidity in December: 77%
The month with the highest relative humidity is September (78%).
The months with the lowest relative humidity are January, March and May (73%).
Average rainfall in December
Black Diamond, FL
- Average rainfall in December: 2.72"
The wettest month (with the highest rainfall) is August (5.51").
The driest month (with the least rainfall) is March (1.26").
Average rainfall days in December
Black Diamond, FL
- Average rainfall days in December: 8.8 days
The month with the highest number of rainy days is August (26.9 days).
The month with the least rainy days is November (8.7 days).
Average snowfall days in December
Black Diamond, FL
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Black Diamond, FL
- Average daylight in December: 10h and 18min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in December: 6h and 18min
The month with the most sunshine is May (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in December
Black Diamond, FL
- Average sunshine days in December: 19.3 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is August (2.1 days).
Average UV index in December
Black Diamond, FL
- Average UV index in December: 5
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in December
Black Diamond, FL
- Average cloud cover in December: 34
The months with the most cloud cover are February and December (Cloud cover 34).
The month with the least cloud cover is May (Cloud cover 24).
Average visibility in December
Black Diamond, FL
- 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).
