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
Heathrow starts December with an average high-temperature of a pleasant 72°F (22.2°C), hinting at a minimal fluctuation from November. Heathrow's nighttime temperature during December is consistently averaged at a moderate 56.7°F (13.7°C).Humidity
In December, the average relative humidity in Heathrow is 76%.Rainfall
In Heathrow, in December, during 10.7 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. In Heathrow, during the entire year, the rain falls for 185.5 days and collects up to 30.43" (773mm) of precipitation.Snowfall
In Heathrow, snow does not fall in February through December.Daylight
The month with the shortest days is December, with an average of 10h and 18min of daylight.On the first day of the month, sunrise is at 7:01 am and sunset at 5:27 pm. On the last day of December, sunrise is at 7:18 am and sunset at 5:39 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 6.2h of sunshine.UV index
The average daily maximum UV index in December in Heathrow is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 5 in December converts into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
What are December temperatures in Heathrow?
What is the average humidity in December in Heathrow?
How much does it rain in Heathrow in December?
When it does not snow in Heathrow?
Does it snow in Heathrow in December?
What is the month with the shortest days in Heathrow?
How many hours of daylight does Heathrow have in December?
When are sunrise and sunset in December in Heathrow?
What is the month with the least sunshine in Heathrow?
How many hours of sunshine does Heathrow have in December?
What is the UV index intensity in December in Heathrow?
Average temperature in December
Heathrow, FL
- Average high temperature in December: 72°F
The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (67.8°F).
- Average low temperature in December: 56.7°F
The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is January (52°F).
Average pressure in December
Heathrow, 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
Heathrow, FL
- Average wind speed in December: 6.2mph
The windiest months (with the highest average wind speed) are January, March and April (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in December
Heathrow, FL
- Average humidity in December: 76%
The months with the highest relative humidity are August and September (77%).
The month with the lowest relative humidity is March (70%).
Average rainfall in December
Heathrow, FL
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is August (4.72").
The driest month (with the least rainfall) is March (1.18").
Average rainfall days in December
Heathrow, FL
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is January (10.1 days).
Average snowfall in December
Heathrow, FL
- Average snowfall in December: 0"
The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Heathrow, 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
Heathrow, FL
- Average daylight in December: 10h and 2min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).
Average sunshine days in December
Heathrow, FL
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is January (17.4 days).
The month with the least sunshine days is August (4.3 days).
Average UV index in December
Heathrow, 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
Heathrow, FL
- Average cloud cover in December: 35
The month with the most cloud cover is February (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 27).
Average visibility in December
Heathrow, 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).
Heathrow, Florida, USA
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