December weather forecast
Altamonte Springs, FL

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Weather in December

The first month of the winter, December, is still a pleasant month in Altamonte Springs, Florida, with an average temperature ranging between min 56.3°F (13.5°C) and max 72.1°F (22.3°C).

Temperature

December begins with an average high-temperature of an agreeable 72.1°F (22.3°C), reflecting close similarity to the preceding month. December nights experience a consistent temperature drop to a refreshing 56.3°F (13.5°C).

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Altamonte Springs, during December, the rain falls for 9.5 days and regularly aggregates up to 0.91" (23mm) of precipitation. Throughout the year, there are 172.9 rainfall days, and 22.76" (578mm) of precipitation is accumulated.

Daylight

The month with the shortest days in Altamonte Springs is December, with an average of 10h and 24min of daylight.
On the first day of December, sunrise is at 7:01 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:39 pm EST.

Sunshine

With an average of 6.1h of sunshine, December has the least sunshine of the year in Altamonte Springs.

UV index

In December, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum daily UV index of 5 during December morphs into the following directions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
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Frequently asked questions

What is the average December temperature in Altamonte Springs?

An average high-temperature, in December, in Altamonte Springs, is 72.1°F (22.3°C) and the average low-temperature is 56.3°F (13.5°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in October is calculated to be 89.6°F (32°C).

What is the average humidity in December in Altamonte Springs?

The average relative humidity in December in Altamonte Springs, Florida, is 76%.

How much does it rain in Altamonte Springs in December?

In December, in Altamonte Springs, the rain falls for 9.5 days. Throughout December, 0.91" (23mm) of precipitation is accumulated.

What is the month with the shortest days in Altamonte Springs?

With an average of 10h and 24min of daylight, December has the shortest days of the year in Altamonte Springs.

How many hours of daylight does Altamonte Springs have in December?

In Altamonte Springs, Florida, the average day length in December is 10h and 21min.

What time are sunrise and sunset in December in Altamonte Springs?

On the first day of December in Altamonte Springs, sunrise is at 7:01 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:39 pm EST.

What is the month with the least sunshine in Altamonte Springs?

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 Altamonte Springs?

In December, the average sunshine duration in Altamonte Springs, Florida, is 6.1h.

What is the UV index reading in December in Altamonte Springs?

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

Average temperature in December
Altamonte Springs, FL

Average temperature in December - Altamonte Springs, FL
  • Average high temperature in December: 72.1°F

The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (68.2°F).

  • Average low temperature in December: 56.3°F

The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is January (51.1°F).

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Average pressure in December
Altamonte Springs, FL

Average pressure in December - Altamonte Springs, 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).

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Average wind speed in December
Altamonte Springs, FL

Average wind speed in December - Altamonte Springs, FL
  • Average wind speed in December: 6mph

The windiest months (with the highest average wind speed) are March and April (6.5mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).

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Average humidity in December
Altamonte Springs, FL

Average humidity in December - Altamonte Springs, FL
  • Average humidity in December: 76%

The month with the highest relative humidity is September (77%).
The month with the lowest relative humidity is March (70%).

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Average rainfall in December
Altamonte Springs, FL

Average rainfall in December - Altamonte Springs, FL
  • Average rainfall in December: 0.91"

The wettest month (with the highest rainfall) is August (3.82").
The driest months (with the least rainfall) are January and March (0.79").

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Average rainfall days in December
Altamonte Springs, FL

Average rainfall days in December - Altamonte Springs, FL
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is August (23.4 days).
The month with the least rainy days is January (8.9 days).

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Average daylight in December /
Average sunshine in December
Altamonte Springs, FL

Average daylight in December / Average sunshine in December - Altamonte Springs, 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 24min).

  • Average sunshine in December: 6h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

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Average sunshine days in December
Altamonte Springs, FL

Average sunshine days in December - Altamonte Springs, FL
  • Average sunshine days in December: 18.7 days

The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is August (4.6 days).

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Average UV index in December
Altamonte Springs, FL

Average UV index in December - Altamonte Springs, 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 month with the lowest UV index is January (UV index 4).

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Average cloud cover in December
Altamonte Springs, FL

Average cloud cover in December - Altamonte Springs, FL
  • Average cloud cover in December: 35

The month with the most cloud cover is February (Cloud cover 37).
The month with the least cloud cover is May (Cloud cover 28).

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Average visibility in December
Altamonte Springs, FL

Average visibility in December - Altamonte Springs, 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).

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Altamonte Springs, Florida, USA

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