December weather forecast
Prospect, LA

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Weather in December

December, the first month of the winter in Prospect, is still a mild month, with an average temperature fluctuating between 43.9°F (6.6°C) and 58.5°F (14.7°C).

Temperature

Prospect's transition into December involves a gentle shift in temperature, receding from an enjoyable 66.2°F (19°C) in November to a moderate 58.5°F (14.7°C). Prospect throughout December, experiences an average nighttime temperature of 43.9°F (6.6°C).

Humidity

In December, the average relative humidity is 82%.

Rainfall

In Prospect, in December, during 8.9 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Prospect, Louisiana, during the entire year, the rain falls for 131.7 days and collects up to 14.29" (363mm) of precipitation.

Snowfall

Months with snowfall are January and December. December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. In Prospect, during the entire year, snow falls for 1.2 days and aggregates up to 0.35" (9mm) of snow.

Daylight

The month with the shortest days is December, with an average of 10h and 6min of daylight.
On the first day of December in Prospect, sunrise is at 6:51 am and sunset at 5:06 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:17 pm CST.

Sunshine

The month with the least sunshine is December, with an average of 4.8h of sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the maximum UV index of 3 suggests this advice:
Exercise prevention - Protecting skin and eyes from harm is required. To guard against the harmful effects of the Sun, minimize exposure during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Prospect in December?

Prospect in December has an average high-temperature of 58.5°F (14.7°C) and an average low-temperature of 43.9°F (6.6°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is computed to be 104°F (40°C).

What is the average humidity in December?

In December, the average relative humidity is 82%.

How many days does it rain in December?

In December, the rain falls for 8.9 days. Throughout December, 1.02" (26mm) of precipitation is accumulated.

When does it start to snow?

December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow.

What is the month with the shortest days?

With an average of 10h and 6min of daylight, December has the shortest days of the year.

How many hours of daylight does Prospect have in December?

The average day length in December is 10h and 8min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 6:51 am and sunset at 5:06 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:17 pm CST.

What is the month with the least sunshine?

With an average of 4.8h of sunshine, December has the least sunshine of the year.

How many hours of sunshine does Prospect have in December?

In Prospect, the average sunshine duration in December is 4.8h.

What are the months with the lowest UV index?

January and December, with an average maximum UV index of 3, are months with the lowest UV index.

What is the UV index reading in December?

In Prospect, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
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
Prospect, LA

Average temperature in December - Prospect, LA
  • Average high temperature in December: 58.5°F

The warmest months (with the highest average high temperature) are July and August (93°F).
The month with the lowest average high temperature is January (55.9°F).

  • Average low temperature in December: 43.9°F

The months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).

Average pressure in December
Prospect, LA

Average pressure in December - Prospect, LA
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.95"Hg).

Average wind speed in December
Prospect, LA

Average wind speed in December - Prospect, LA
  • Average wind speed in December: 6.6mph

The windiest month (with the highest average wind speed) is February (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).

Average humidity in December
Prospect, LA

Average humidity in December - Prospect, LA
  • Average humidity in December: 82%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (71%).

Average rainfall in December
Prospect, LA

Average rainfall in December - Prospect, LA
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is August (1.97").
The driest month (with the least rainfall) is November (0.75").

Average rainfall days in December
Prospect, LA

Average rainfall days in December - Prospect, LA
  • Average rainfall days in December: 8.9 days

The month with the highest number of rainy days is August (16.8 days).
The month with the least rainy days is November (6.5 days).

Average snowfall in December
Prospect, LA

Average snowfall in December - Prospect, LA
  • Average snowfall in December: 0.04"

The month with the highest snowfall is January (0.31").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Prospect, LA

Average snowfall days in December - Prospect, LA
  • Average snowfall days in December: 0.2 days

The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

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

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

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in December
Prospect, LA

Average sunshine days in December - Prospect, LA
  • Average sunshine days in December: 19.5 days

The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is July (10.9 days).

Average UV index in December
Prospect, LA

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

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

Average cloud cover in December
Prospect, LA

Average cloud cover in December - Prospect, LA
  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in December
Prospect, LA

Average visibility in December - Prospect, LA
  • Average visibility in December: 6mi

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

Prospect, Louisiana, USA

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