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 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
December's arrival brings an average high-temperature of a still warm 74.3°F (23.5°C), slightly deviating from November's 77.9°F (25.5°C). During December, the temperature is averaged to a low of 58.1°F (14.5°C) at night.Humidity
In Sandy, the average relative humidity in December is 77%.Rainfall
In December, the rain falls for 9.1 days. Throughout December, 1.1" (28mm) of precipitation is accumulated. Throughout the year, there are 187.3 rainfall days, and 28.62" (727mm) of precipitation is accumulated.Daylight
December has the shortest days of the year, with an average of 10h and 30min of daylight.On the first day of December, sunrise is at 7:01 am and sunset at 5:34 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:45 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 6.3h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 5 in December translates into this advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What is the average humidity in December?
How much does it rain in Sandy in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine in Sandy?
How long on average sun shines in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Sandy, FL
- Average high temperature in December: 74.3°F
The warmest months (with the highest average high temperature) are July and August (90.1°F).
The month with the lowest average high temperature is January (70.5°F).
- Average low temperature in December: 58.1°F
The month with the highest average low temperature is August (76.5°F).
The coldest month (with the lowest average low temperature) is January (52.9°F).
Average pressure in December
Sandy, FL
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).
Average wind speed in December
Sandy, FL
- Average wind speed in December: 6.7mph
The windiest month (with the highest average wind speed) is January (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in December
Sandy, FL
- Average humidity in December: 77%
The month with the highest relative humidity is September (80%).
The month with the lowest relative humidity is March (70%).
Average rainfall in December
Sandy, FL
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is August (5.08").
The driest month (with the least rainfall) is February (0.75").
Average rainfall days in December
Sandy, FL
- Average rainfall days in December: 9.1 days
The months with the highest number of rainy days are July and August (25.7 days).
The month with the least rainy days is January (8.6 days).
Average daylight in December /
Average sunshine in December
Sandy, FL
- Average daylight in December: 10h and 3min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in December: 6h and 2min
The months with the most sunshine are May and July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in December
Sandy, FL
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is January (20.7 days).
The months with the least sunshine days are July and August (3.6 days).
Average UV index in December
Sandy, 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 months with the lowest UV index are January, February, November and December (UV index 5).
Average cloud cover in December
Sandy, FL
- Average cloud cover in December: 33
The month with the most cloud cover is December (Cloud cover 33).
The month with the least cloud cover is May (Cloud cover 26).
Average visibility in December
Sandy, 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).
Sandy, Florida, USA
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