December weather forecast
Clewiston, FL

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Weather in December

The first month of the winter, December, is still a warm month in Clewiston, Florida, with an average temperature ranging between max 75.7°F (24.3°C) and min 60.6°F (15.9°C).

Temperature

Clewiston records an average high-temperature of a still moderately hot 75.7°F (24.3°C) in December, closely mirroring the climate of the previous month. Clewiston, in December, witnesses an average low-temperature of 60.6°F (15.9°C).

Humidity

In Clewiston, the average relative humidity in December is 78%.

Rainfall

In Clewiston, in December, it is raining for 8.3 days, with typically 0.87" (22mm) of accumulated precipitation. In Clewiston, during the entire year, the rain falls for 166.9 days and collects up to 16.06" (408mm) of precipitation.

Daylight

With an average of 10h and 30min of daylight, December has the shortest days of the year in Clewiston.
On the first day of December in Clewiston, sunrise is at 6:55 am and sunset at 5:30 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:41 pm EST.

Sunshine

December has the least sunshine of the year, with an average of 6.2h of sunshine.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, a daily maximum UV index of 5 leads to the following instructions:
Exercise prevention - Protecting skin and eyes from harm is required. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
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Frequently asked questions

What is the average December temperature in Clewiston?

December temperatures in Clewiston vary between a high-temperature of 75.7°F (24.3°C) and a low-temperature of 60.6°F (15.9°C). In October, 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, is estimated at 93.2°F (34°C).

What is the average humidity in December in Clewiston?

In December, the average relative humidity in Clewiston is 78%.

How many days does it rain in December in Clewiston?

In December, the rain falls for 8.3 days. Throughout December, 0.87" (22mm) of precipitation is accumulated.

What is the month with the shortest days in Clewiston?

The month with the shortest days in Clewiston is December, with an average of 10h and 30min of daylight.

How many hours of daylight does Clewiston have in December?

The average day length in December in Clewiston is 10h and 29min.

When are sunrise and sunset in December in Clewiston?

On the first day of December in Clewiston, Florida, sunrise is at 6:55 am and sunset at 5:30 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:41 pm EST.

What is the month with the least sunshine in Clewiston?

With an average of 6.2h of sunshine, December has the least sunshine of the year.

How many hours of sunshine does Clewiston have in December?

In December, the average sunshine duration in Clewiston, Florida, is 6.2h.

What are the months with the lowest UV index in Clewiston?

The months with the lowest UV index in Clewiston, Florida, are January, February and December, with an average maximum UV index of 5.

What is the UV index reading in December in Clewiston?

The average daily maximum UV index in December is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to 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
Clewiston, FL

Average temperature in December - Clewiston, FL
  • Average high temperature in December: 75.7°F

The warmest month (with the highest average high temperature) is August (89.6°F).
The month with the lowest average high temperature is January (72.3°F).

  • Average low temperature in December: 60.6°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 (56.1°F).

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Average pressure in December
Clewiston, FL

Average pressure in December - Clewiston, FL
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).

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Average wind speed in December
Clewiston, FL

Average wind speed in December - Clewiston, FL
  • Average wind speed in December: 6.5mph

The windiest month (with the highest average wind speed) is March (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

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Average humidity in December
Clewiston, FL

Average humidity in December - Clewiston, FL
  • Average humidity in December: 78%

The month with the highest relative humidity is September (81%).
The month with the lowest relative humidity is March (70%).

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Average rainfall in December
Clewiston, FL

Average rainfall in December - Clewiston, FL
  • Average rainfall in December: 0.87"

The wettest month (with the highest rainfall) is August (3.19").
The driest month (with the least rainfall) is January (0.43").

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Average rainfall days in December
Clewiston, FL

Average rainfall days in December - Clewiston, FL
  • Average rainfall days in December: 8.3 days

The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is January (6.8 days).

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

Average daylight in December / Average sunshine in December - Clewiston, FL
  • Average daylight in December: 10h and 3min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in December: 6h and 1min

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 12min).

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Average sunshine days in December
Clewiston, FL

Average sunshine days in December - Clewiston, FL
  • Average sunshine days in December: 18.2 days

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is August (4.3 days).

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Average UV index in December
Clewiston, FL

Average UV index in December - Clewiston, 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 months with the lowest UV index are January, February and December (UV index 5).

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Average cloud cover in December
Clewiston, FL

Average cloud cover in December - Clewiston, FL
  • Average cloud cover in December: 34

The months with the most cloud cover are January, November and December (Cloud cover 34).
The months with the least cloud cover are March, April and May (Cloud cover 29).

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Average visibility in December
Clewiston, FL

Average visibility in December - Clewiston, 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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Clewiston, Florida, USA

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