December weather forecast
Sumterville, FL

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Weather in December

The first month of the winter, December, is also an agreeable month in Sumterville, Florida, with temperature in the range of an average high of 71.2°F (21.8°C) and an average low of 53.6°F (12°C).

Temperature

Sumterville records an average high-temperature of a pleasant 71.2°F (21.8°C) as December arrives, nearly mirroring the previous month's climate. In December, Sumterville's temperature tends to fall to an average low of 53.6°F (12°C) during the night.

Humidity

In December, the average relative humidity is 77%.

Rainfall

In Sumterville, Florida, in December, during 6.5 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. In Sumterville, during the entire year, the rain falls for 130.4 days and collects up to 11.26" (286mm) of precipitation.

Daylight

December has the shortest days of the year, with an average of 10h and 18min of daylight.
On the first day of December, sunrise is at 7:04 am and sunset at 5:30 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:42 pm EST.

Sunshine

The month with the least sunshine in Sumterville is December, with an average of 6.1h of sunshine.

UV index

In Sumterville, the average daily maximum UV index in December is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index, 5 during December, leads to the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Updated: Jun 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in December?

Sumterville in December has an average high-temperature of 71.2°F (21.8°C) and an average low-temperature of 53.6°F (12°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in October is evaluated at 89.6°F (32°C).

What is the average humidity in December?

In Sumterville, the average relative humidity in December is 77%.

How many days does it rain in December?

In December, the rain falls for 6.5 days. Throughout December, 1.14" (29mm) of precipitation is accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 10h and 18min of daylight.

How many hours of daylight does Sumterville have in December?

In December, the average day length is 10h and 21min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:04 am and sunset at 5:30 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:42 pm EST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 6.1h of sunshine.

How long on average sun shines in December in Sumterville?

The average sunshine duration in December is 6.1h.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Sumterville, FL

Average temperature in December - Sumterville, FL
  • Average high temperature in December: 71.2°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 (67.1°F).

  • Average low temperature in December: 53.6°F

The month with the highest average low temperature is August (75.2°F).
The coldest month (with the lowest average low temperature) is January (48.9°F).

Average pressure in December
Sumterville, FL

Average pressure in December - Sumterville, 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
Sumterville, FL

Average wind speed in December - Sumterville, FL
  • Average wind speed in December: 5.8mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).

Average humidity in December
Sumterville, FL

Average humidity in December - Sumterville, FL
  • Average humidity in December: 77%

The months with the highest relative humidity are July, August and September (79%).
The month with the lowest relative humidity is March (71%).

Average rainfall in December
Sumterville, FL

Average rainfall in December - Sumterville, FL
  • Average rainfall in December: 1.14"

The wettest month (with the highest rainfall) is July (2.2").
The driest month (with the least rainfall) is March (0.28").

Average rainfall days in December
Sumterville, FL

Average rainfall days in December - Sumterville, FL
  • Average rainfall days in December: 6.5 days

The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is November (6 days).

Average daylight in December /
Average sunshine in December
Sumterville, FL

Average daylight in December / Average sunshine in December - Sumterville, 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 42min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

Average sunshine days in December
Sumterville, FL

Average sunshine days in December - Sumterville, FL
  • Average sunshine days in December: 22.6 days

The month with the most sunshine days is January (23.6 days).
The month with the least sunshine days is July (7.5 days).

Average UV index in December
Sumterville, FL

Average UV index in December - Sumterville, FL
  • Average UV index in December: 5

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).

Average cloud cover in December
Sumterville, FL

Average cloud cover in December - Sumterville, FL
  • Average cloud cover in December: 37

The months with the most cloud cover are February and December (Cloud cover 37).
The months with the least cloud cover are May and October (Cloud cover 29).

Average visibility in December
Sumterville, FL

Average visibility in December - Sumterville, 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).

Sumterville, Florida, USA

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