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 commencement of December brings an average high-temperature of a pleasant 69.8°F (21°C), marking an inconsequential divergence from November. In December, Roy records an average nighttime temperature of 53.1°F (11.7°C).Humidity
August, September and December, with an average relative humidity of 77%, are the most humid months.Rainfall
In December, the rain falls for 6.9 days. Throughout December, 1.1" (28mm) of precipitation is accumulated. Throughout the year, there are 138.3 rainfall days, and 12.76" (324mm) of precipitation is accumulated.Snowfall
In Roy, snow does not fall in February through December.Daylight
The month with the shortest days in Roy, Florida, is December, with an average of 10h and 18min of daylight.On the first day of December, sunrise is at 7:03 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:37 pm EST.
Sunshine
The month with the least sunshine in Roy is December, 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 moderate health risk from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 4 suggests this advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
When it does not snow?
Does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Roy have in December?
When are sunrise and sunset in December in Roy?
What is the month with the least sunshine?
How many hours of sunshine does Roy have in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Roy, FL
- Average high temperature in December: 69.8°F
The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is January (65.8°F).
- Average low temperature in December: 53.1°F
The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (48.2°F).
Average pressure in December
Roy, 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
Roy, FL
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).
Average humidity in December
Roy, FL
- Average humidity in December: 77%
The months with the highest relative humidity are August, September and December (77%).
The month with the lowest relative humidity is March (70%).
Average rainfall in December
Roy, FL
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is July (2.09").
The driest month (with the least rainfall) is March (0.47").
Average rainfall days in December
Roy, FL
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is November (6.7 days).
Average snowfall days in December
Roy, 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
Roy, 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 54min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in December
Roy, FL
- Average sunshine days in December: 20.9 days
The month with the most sunshine days is January (21.3 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in December
Roy, 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
Roy, 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 July (Cloud cover 30).
Average visibility in December
Roy, 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).
Roy, Florida, USA
Weather forecast for your location
2. Allow the app to use your location