December weather forecastMayport, FL
December
Weather in December
December, the first month of the winter in Mayport, is still a refreshing month, with temperature in the range of an average high of 66.7°F (19.3°C) and an average low of 55.2°F (12.9°C).Temperature
December's weather records an average high-temperature of an enjoyable 66.7°F (19.3°C), showing little deviation from November. Mayport's average low-temperature is measured at a cool 55.2°F (12.9°C) during December.Humidity
The months with the highest humidity in Mayport, Florida, are August and December, with an average relative humidity of 76%.Rainfall
In December, the rain falls for 11.9 days. Throughout December, 1.93" (49mm) of precipitation is accumulated. In Mayport, during the entire year, the rain falls for 185.3 days and collects up to 32.64" (829mm) of precipitation.Snowfall
January, February, September and December are months with snowfall in Mayport, Florida. The months with the most snowfall days in Mayport are January, February, September and December, with an average of 0.1 snowfall days.Daylight
With an average of 10h and 12min of daylight, December has the shortest days of the year in Mayport, Florida.On the first day of the month, sunrise is at 7:05 am and sunset at 5:24 pm. On the last day of December, in Mayport, sunrise is at 7:22 am and sunset at 5:35 pm EST.
Sunshine
The months with the least sunshine are January and December, with an average of 5.8h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during December translates into these guidelines:
Be vigilant - Preventing sunburn is recommended. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mayport, FL
- Average high temperature in December: 66.7°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (62.6°F).
- Average low temperature in December: 55.2°F
The month with the highest average low temperature is August (78.3°F).
The coldest month (with the lowest average low temperature) is January (50.2°F).
Average pressure in December
Mayport, FL
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are August and September (29.98"Hg).
Average wind speed in December
Mayport, FL
- Average wind speed in December: 8.3mph
The windiest months (with the highest average wind speed) are January, March, April, October and November (8.5mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in December
Mayport, FL
- Average humidity in December: 76%
The months with the highest relative humidity are August and December (76%).
The month with the lowest relative humidity is March (71%).
Average rainfall in December
Mayport, FL
- Average rainfall in December: 1.93"
The wettest month (with the highest rainfall) is August (5.12").
The driest month (with the least rainfall) is January (1.3").
Average rainfall days in December
Mayport, FL
- Average rainfall days in December: 11.9 days
The month with the highest number of rainy days is August (24.7 days).
The month with the least rainy days is February (9.8 days).
Average snowfall days in December
Mayport, FL
- Average snowfall days in December: 0.1 days
The months with the highest number of snowfall days are January, February, September and December (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, October and November (0 days).
Average daylight in December /
Average sunshine in December
Mayport, FL
- Average daylight in December: 10h and 12min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 5h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 48min).
Average sunshine days in December
Mayport, FL
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is August (4.1 days).
Average UV index in December
Mayport, FL
- Average UV index in December: 4
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in December
Mayport, FL
- Average cloud cover in December: 39
The month with the most cloud cover is December (Cloud cover 39).
The month with the least cloud cover is May (Cloud cover 26).
Average visibility in December
Mayport, 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).
