December weather forecast and climate
Altoona, FL

The first month of the winter, December, is still a pleasant month in Altoona, Florida, with temperature in the range of an average high of 71.4°F (21.9°C) and an average low of 54.5°F (12.5°C).

Temperature

In Altoona, the average high-temperature is essentially the same as in November - a pleasant 71.4°F (21.9°C). The average low-temperature, in December, is 54.5°F (12.5°C).

Humidity

In Altoona, the average relative humidity is 77%.

Rainfall

In December, in Altoona, Florida, the rain falls for 10.5 days. Throughout December, 2.17" (55mm) of precipitation is accumulated. Throughout the year, there are 193.1 rainfall days, and 35.71" (907mm) of precipitation is accumulated.

Daylight

December has the shortest days of the year in Altoona, with an average of 10.3h of daylight.

Sunshine

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

UV index

In December, the average daily maximum UV index in Altoona is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 5 in December interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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.

What is the temperature in December in Altoona?

In December, the average high-temperature is 71.4°F (21.9°C), and the average low-temperature is 54.5°F (12.5°C).

What is the average humidity in December in Altoona?

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

How much does it rain in Altoona in December?

In Altoona, in December, during 10.5 rainfall days, 2.17" (55mm) of precipitation is typically accumulated.

What is the month with the shortest days in Altoona?

December has the shortest days of the year in Altoona, with an average of 10.3h of daylight.

What is the average length of the day in December in Altoona?

In Altoona, the average length of the day in December is 10.3h.

What is the month with the least sunshine in Altoona?

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

How many hours of sunshine does Altoona have in December?

In December, the average sunshine in Altoona, Florida, is 6.1h.

What is the UV index reading in December in Altoona?

In December, the average daily maximum UV index in Altoona is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV rays.
Average temperature in December - Altoona, FL
  • Average high temperature in December: 71.4°F

The warmest month (with the highest average high temperature) is August (90.9°F).
The month with the lowest average high temperature is January (67.5°F).

  • Average low temperature in December: 54.5°F

The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (49.5°F).

Average pressure in December - Altoona, FL
  • Average pressure in December: 30.11"

The month with the highest atmospheric pressure is January (30.14").
The month with the lowest atmospheric pressure is September (29.97").

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

The windiest month (with the highest average wind speed) is April (6.4mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).

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

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

Average rainfall in December - Altoona, FL
  • Average rainfall in December: 2.17"

The wettest month (with the highest rainfall) is July (5.91").
The driest months (with the least rainfall) are March and November (1.26").

Average rainfall days in December - Altoona, FL
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is July (26.9 days).
The month with the least rainy days is January (9.2 days).

Average daylight in December / Average sunshine in December - Altoona, FL
  • Average daylight in December: 10.3h

The month with the longest days is June (Average daylight: 14h).
The month with the shortest days is December (Average daylight: 10.3h).

  • Average sunshine in December: 6.1h

Months with the most sunshine are May and July (Average sunshine: 10.7h).
The month with the least sunshine is December (Average sunshine: 6.1h).

Average sunshine days in December - Altoona, FL
  • Average sunshine days in December: 17.9 days

The month with the most sunshine days is January (19 days).
The month with the least sunshine days is August (2.1 days).

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

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

Months with the most cloud cover are February and December (Cloud cover 37).
The month with the least cloud cover is May (Cloud cover 29).

Average visibility in December - Altoona, FL
  • Average visibility in December: 6mi

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