December weather forecast
Topsy, LA

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Weather in December

December, the first month of the winter in Topsy, is still a comfortable month, with temperature in the range of an average low of 48°F (8.9°C) and an average high of 61.5°F (16.4°C).

Temperature

December brings a minor shift in the average high-temperature, adjusting from a pleasant 68.9°F (20.5°C) in November to a refreshing 61.5°F (16.4°C). The average low-temperature of 48°F (8.9°C) is witnessed during December.

Humidity

The average relative humidity in December is 79%.

Rainfall

In December, in Topsy, the rain falls for 13.8 days. Throughout December, 3.31" (84mm) of precipitation is accumulated. Throughout the year, there are 182.1 rainfall days, and 39.25" (997mm) of precipitation is accumulated.

Snowfall

January and December are months with snowfall in Topsy, Louisiana. December is the first month it typically snows in Topsy. Throughout December, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 0.4 snowfall days, and 0.31" (8mm) of snow is accumulated.

Daylight

The month with the shortest days in Topsy is December, with an average of 10h and 12min of daylight.
On the first day of the month, sunrise is at 6:52 am and sunset at 5:11 pm. On the last day of December, in Topsy, Louisiana, sunrise is at 7:09 am and sunset at 5:22 pm CST.

Sunshine

The month with the least sunshine is December, with an average of 5.1h of sunshine.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 3 in December translates into this advice:
Put precautions into practice - Guidance to elude sunburn is provided. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
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Frequently asked questions

What are December temperatures in Topsy?

Topsy in December has an average high-temperature of 61.5°F (16.4°C) and an average low-temperature of 48°F (8.9°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in September is calculated to be 102.2°F (39°C).

What is the average humidity in December in Topsy?

In Topsy, the average relative humidity in December is 79%.

How much does it rain in Topsy in December?

In Topsy, in December, it is raining for 13.8 days, with typically 3.31" (84mm) of accumulated precipitation.

When does it start to snow in Topsy?

December is the first month it typically snows in Topsy. Throughout December, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow.

What is the month with the shortest days in Topsy?

December has the shortest days of the year in Topsy, with an average of 10h and 12min of daylight.

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

In Topsy, Louisiana, the average day length in December is 10h and 13min.

What time are sunrise and sunset in December in Topsy?

On the first day of December in Topsy, Louisiana, sunrise is at 6:52 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:22 pm CST.

What is the month with the least sunshine in Topsy?

The month with the least sunshine in Topsy, Louisiana, is December, with an average of 5.1h of sunshine.

How long on average sun shines in December in Topsy?

In December, the average sunshine duration in Topsy is 5.1h.

What is the month with the lowest UV index in Topsy?

With an average maximum UV index of 3, December is the month with the lowest UV index in Topsy, Louisiana.

What is the UV index reading in December in Topsy?

The average daily maximum UV index in December is 3. 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
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Topsy, LA

Average temperature in December - Topsy, LA
  • Average high temperature in December: 61.5°F

The warmest month (with the highest average high temperature) is August (91.4°F).
The month with the lowest average high temperature is January (59.4°F).

  • Average low temperature in December: 48°F

The month with the highest average low temperature is July (75.7°F).
The coldest month (with the lowest average low temperature) is January (44.4°F).

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Average pressure in December
Topsy, LA

Average pressure in December - Topsy, LA
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.94"Hg).

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Average wind speed in December
Topsy, LA

Average wind speed in December - Topsy, LA
  • Average wind speed in December: 8.5mph

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in December
Topsy, LA

Average humidity in December - Topsy, LA
  • Average humidity in December: 79%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in December
Topsy, LA

Average rainfall in December - Topsy, LA
  • Average rainfall in December: 3.31"

The wettest month (with the highest rainfall) is August (5.75").
The driest month (with the least rainfall) is February (2.32").

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Average rainfall days in December
Topsy, LA

Average rainfall days in December - Topsy, LA
  • Average rainfall days in December: 13.8 days

The month with the highest number of rainy days is August (22.2 days).
The month with the least rainy days is November (10.1 days).

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Average snowfall in December
Topsy, LA

Average snowfall in December - Topsy, LA
  • Average snowfall in December: 0.12"

The month with the highest snowfall is January (0.2").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Topsy, LA

Average snowfall days in December - Topsy, LA
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in December /
Average sunshine in December
Topsy, LA

Average daylight in December / Average sunshine in December - Topsy, LA
  • Average daylight in December: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in December
Topsy, LA

Average sunshine days in December - Topsy, LA
  • Average sunshine days in December: 15.6 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is August (7.3 days).

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Average UV index in December
Topsy, LA

Average UV index in December - Topsy, LA
  • Average UV index in December: 3

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in December
Topsy, LA

Average cloud cover in December - Topsy, LA
  • Average cloud cover in December: 45

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 25).

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Average visibility in December
Topsy, LA

Average visibility in December - Topsy, LA
  • 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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Topsy, Louisiana, USA

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