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
Sumner measures an average high-temperature of a still agreeable 68°F (20°C) in December, nearly consistent with the preceding month. The average low-temperature of 52.3°F (11.3°C) is witnessed during December.Humidity
In Sumner, the average relative humidity in December is 76%.Rainfall
In December, the rain falls for 7.9 days. Throughout December, 1.81" (46mm) of precipitation is accumulated. In Sumner, during the entire year, the rain falls for 154 days and collects up to 21.69" (551mm) of precipitation.Snowfall
December is the only month when snow falls. The month with the most snowfall days is December, when snow falls for 0.1 days.Daylight
With an average of 10h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:08 am and sunset at 5:33 pm. On the last day of December, sunrise is at 7:25 am and sunset at 5:44 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 6h of sunshine.UV index
January and December, with an average maximum UV index of 4, are months with the lowest UV index in Sumner. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 4 during December translates into the following directions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. When the Sun is at its strongest around midday, find shade and limit exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the average humidity in December in Sumner?
How much does it rain in December?
When does it snow the most?
When does it start snowing?
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 Sumner?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Sumner, FL
- Average high temperature in December: 68°F
The warmest month (with the highest average high temperature) is August (90.3°F).
The month with the lowest average high temperature is January (64°F).
- Average low temperature in December: 52.3°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 (47.7°F).
Average pressure in December
Sumner, FL
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in December
Sumner, FL
- Average wind speed in December: 7mph
The windiest months (with the highest average wind speed) are January, February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Sumner, FL
- Average humidity in December: 76%
The month with the highest relative humidity is September (77%).
The month with the lowest relative humidity is January (71%).
Average rainfall in December
Sumner, FL
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is November (0.83").
Average rainfall days in December
Sumner, FL
- Average rainfall days in December: 7.9 days
The month with the highest number of rainy days is July (22.8 days).
The month with the least rainy days is November (6.6 days).
Average snowfall days in December
Sumner, 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
Sumner, 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: 6h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in December
Sumner, FL
- Average sunshine days in December: 21.2 days
The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is July (5.8 days).
Average UV index in December
Sumner, 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
Sumner, FL
- Average cloud cover in December: 36
The months with the most cloud cover are February and December (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 25).
Average visibility in December
Sumner, 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).
Sumner, Florida, USA
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