December weather forecast
Theressa, FL

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Weather in December

December, the first month of the winter in Theressa, is also an agreeable month, with an average temperature fluctuating between 68.4°F (20.2°C) and 51.4°F (10.8°C).

Temperature

December's arrival brings an average high-temperature of a still agreeable 68.4°F (20.2°C), demonstrating subtle variation from the preceding month. During the nights in December, Theressa observes an average low-temperature of 51.4°F (10.8°C).

Humidity

The average relative humidity in December is 77%.

Rainfall

In December, the rain falls for 10.9 days. Throughout December, 2.24" (57mm) of precipitation is accumulated. In Theressa, during the entire year, the rain falls for 188.6 days and collects up to 33.5" (851mm) of precipitation.

Snowfall

The only month with snowfall in Theressa is December. December has the most snowfall days of the year. Snow falls for 0.1 days.

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 7:06 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:39 pm EST.

Sunshine

The month with the least sunshine 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 reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: A typical high UV index of 4 in December suggests the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures?

December temperatures vary between a high-temperature of 68.4°F (20.2°C) and a low-temperature of 51.4°F (10.8°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in October is estimated at 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December is 77%.

How many days does it rain in December?

In Theressa, in December, during 10.9 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.

When does it snow the most?

December has the most snowfall days of the year. Snow falls for 0.1 days.

When does it start snowing?

December is the first month it typically snows. Throughout December, there are 0.1 snowfall days.

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.

What is the average length of the day in December?

In Theressa, the average day length in December is 10h and 16min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:06 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:39 pm EST.

What is the month with the least sunshine?

The month with the least sunshine in Theressa is December, with an average of 5.9h of sunshine.

How long on average sun shines in December?

The average sunshine duration in December is 5.9h.

What is the month with the lowest UV index?

January and December, with an average maximum UV index of 4, are months with the lowest UV index.

What is the UV index intensity in December in Theressa?

The average daily maximum UV index in December in Theressa is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Theressa, FL

Average temperature in December - Theressa, FL
  • Average high temperature in December: 68.4°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (64.2°F).

  • Average low temperature in December: 51.4°F

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (46.6°F).

Average pressure in December
Theressa, FL

Average pressure in December - Theressa, 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
Theressa, FL

Average wind speed in December - Theressa, FL
  • Average wind speed in December: 5.7mph

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).

Average humidity in December
Theressa, FL

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

The months with the highest relative humidity are August and September (78%).
The month with the lowest relative humidity is March (71%).

Average rainfall in December
Theressa, FL

Average rainfall in December - Theressa, FL
  • Average rainfall in December: 2.24"

The wettest month (with the highest rainfall) is July (5.31").
The driest months (with the least rainfall) are January and November (1.5").

Average rainfall days in December
Theressa, FL

Average rainfall days in December - Theressa, FL
  • Average rainfall days in December: 10.9 days

The month with the highest number of rainy days is August (25.9 days).
The month with the least rainy days is November (9 days).

Average snowfall days in December
Theressa, FL

Average snowfall days in December - Theressa, 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
Theressa, FL

Average daylight in December / Average sunshine in December - Theressa, 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 42min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

Average sunshine days in December
Theressa, FL

Average sunshine days in December - Theressa, FL
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is July (3.6 days).

Average UV index in December
Theressa, FL

Average UV index in December - Theressa, 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
Theressa, FL

Average cloud cover in December - Theressa, 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 October (Cloud cover 31).

Average visibility in December
Theressa, FL

Average visibility in December - Theressa, FL
  • Average visibility in December: 5mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).

Theressa, Florida, USA

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