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 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 is marked by an average high-temperature of a still agreeable 68.4°F (20.2°C), bearing a close resemblance to November. An average low-temperature of 51.4°F (10.8°C) is observed during December nights in Keystone Heights, Florida.Humidity
In December, the average relative humidity in Keystone Heights is 77%.Rainfall
In Keystone Heights, Florida, in December, it is raining for 10.9 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, in Keystone Heights, there are 188.6 rainfall days, and 33.5" (851mm) of precipitation is accumulated.Snowfall
The only month with snowfall in Keystone Heights is December. December has the most snowfall days of the year. Snow falls for 0.1 days.Daylight
The month with the shortest days in Keystone Heights is December, with an average of 10h and 18min of daylight.On the first day of December, sunrise is at 7:06 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:39 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 5.9h of sunshine.UV index
January and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A daily high UV index of 4 in December leads to these guidelines:
Undertake precautions - Guarding against sun damage is counselled. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. 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 usual temperature for Keystone Heights in December?
What is the average humidity in December in Keystone Heights?
How much does it rain in Keystone Heights in December?
When does it snow the most in Keystone Heights?
When does it start to snow in Keystone Heights?
What is the month with the shortest days in Keystone Heights?
What is the average length of the day in December in Keystone Heights?
When is the sunrise / sunset in December in Keystone Heights?
What is the month with the least sunshine in Keystone Heights?
How many hours of sunshine does Keystone Heights have in December?
When is the lowest UV index in Keystone Heights?
What is the UV index intensity in December in Keystone Heights?
Average temperature in December
Keystone Heights, FL
- Average high temperature in December: 68.4°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (64.2°F).
- Average low temperature in December: 51.4°F
The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (46.6°F).
Average pressure in December
Keystone Heights, FL
- Average pressure in December: 30.12"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
Keystone Heights, FL
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in December
Keystone Heights, FL
- Average humidity in December: 77%
The months with the highest relative humidity are August and September (78%).
The month with the lowest relative humidity is March (71%).
Average rainfall in December
Keystone Heights, FL
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is July (5.31").
The driest months (with the least rainfall) are January and November (1.5").
Average rainfall days in December
Keystone Heights, FL
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is August (25.9 days).
The month with the least rainy days is November (9 days).
Average snowfall days in December
Keystone Heights, FL
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Keystone Heights, FL
- Average daylight in December: 10h and 2min
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: 5h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in December
Keystone Heights, FL
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is July (3.6 days).
Average UV index in December
Keystone Heights, FL
- Average UV index in December: 4
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in December
Keystone Heights, FL
- Average cloud cover in December: 40
The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are May and October (Cloud cover 31).
Average visibility in December
Keystone Heights, FL
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).
Keystone Heights, Florida, USA
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