December weather forecast
Cedar Mill Run, LA

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Weather in December

The first month of the winter, December, is still a refreshing month in Cedar Mill Run, Louisiana, with an average temperature ranging between min 46.9°F (8.3°C) and max 61.7°F (16.5°C).

Temperature

December's arrival comes with a mild decrease in the average high-temperature, moving subtly from an agreeable 68.7°F (20.4°C) in November to a comfortable 61.7°F (16.5°C). Cedar Mill Run observes an average nighttime temperature of 46.9°F (8.3°C) during December.

Humidity

February and December, with an average relative humidity of 81%, are the most humid months in Cedar Mill Run, Louisiana.

Rainfall

In December, the rain falls for 6.5 days. Throughout December, 0.47" (12mm) of precipitation is accumulated. Throughout the year, in Cedar Mill Run, there are 96.2 rainfall days, and 7.05" (179mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Cedar Mill Run are January and December. The months with the most snowfall days are January and December, with an average of 0.1 snowfall days.

Daylight

December has the shortest days of the year, with an average of 10h and 12min of daylight.
On the first day of the month, sunrise is at 6:43 am and sunset at 5:02 pm. On the last day of December, sunrise is at 7:00 am and sunset at 5:13 pm CST.

Sunshine

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

UV index

The months with the lowest UV index in Cedar Mill Run are January and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: In December, a daily maximum UV index of 3 leads to the following instructions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
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Frequently asked questions

What is the average December temperature in Cedar Mill Run?

In Cedar Mill Run, 61.7°F (16.5°C) is the average high-temperature and 46.9°F (8.3°C) is the average low-temperature during December. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 105.8°F (41°C).

What is the most humid month in Cedar Mill Run?

February and December, with an average relative humidity of 81%, are most humid months in Cedar Mill Run, Louisiana.

What is the average humidity in December in Cedar Mill Run?

In December, the average relative humidity is 81%.

How many days does it rain in December in Cedar Mill Run?

In Cedar Mill Run, Louisiana, in December, it is raining for 6.5 days, with typically 0.47" (12mm) of accumulated precipitation.

What is the snowiest month in Cedar Mill Run?

The months with the most snowfall days in Cedar Mill Run are January and December, with an average of 0.1 snowfall days.

When does it start to snow in Cedar Mill Run?

December is the first month it typically snows in Cedar Mill Run. Throughout December, there are 0.1 snowfall days.

What is the month with the shortest days in Cedar Mill Run?

December has the shortest days of the year in Cedar Mill Run, Louisiana, with an average of 10h and 12min of daylight.

How many hours of daylight does Cedar Mill Run have in December?

The average day length in December is 10h and 13min.

What time are sunrise and sunset in December in Cedar Mill Run?

On the first day of December in Cedar Mill Run, sunrise is at 6:43 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 5:13 pm CST.

What is the month with the least sunshine in Cedar Mill Run?

The month with the least sunshine in Cedar Mill Run, Louisiana, is December, with an average of 4.8h of sunshine.

How long on average sun shines in December in Cedar Mill Run?

In December, the average sunshine duration in Cedar Mill Run, Louisiana, is 4.8h.

When is the lowest UV index in Cedar Mill Run?

The months with the lowest UV index in Cedar Mill Run are January and December, with an average maximum UV index of 3.

What is the UV index reading in December in Cedar Mill Run?

In December, the average daily maximum UV index in Cedar Mill Run is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJFMAMJJASONDecember
Nov
December
Jan
Average high temperature
68.7°F 20.4°C
61.7°F 16.5°C
58.8°F 14.9°C
Average low temperature
50.4°F 10.2°C
46.9°F 8.3°C
42.4°F 5.8°C
Average pressure
30.13" 765mmHg
30.13" 765mmHg
30.16" 766mmHg
Average wind speed
5.8mph 9.3km/h
6.3mph 10.1km/h
6.4mph 10.3km/h
Average max. wind speed
6.3mph 10.1km/h
6.7mph 10.8km/h
6.8mph 10.9km/h
Average wind speed gusts
9.7mph 15.6km/h
10.3mph 16.6km/h
10.4mph 16.7km/h
Average humidity
75%
81%
78%
Average rainfall
0.39" 10mm
0.47" 12mm
0.59" 15mm
Average rainfall days
4.6
6.5
5
Average snowfall days
0
0.1
0.1
Average daylight
10h 4min
10h 1min
10h 2min
Average sunshine
5h 5min
4h 5min
5h 1min
Average sunshine days
24.1
22.5
24
Average UV index
4
3
3
Average cloud cover
36%
51%
43%
Average visibility
6mi 9.7km
5mi 8km
5mi 8km

Average temperature in December
Cedar Mill Run, LA

Average temperature in December - Cedar Mill Run, LA
  • Average high temperature in December: 61.7°F

The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is January (58.8°F).

  • Average low temperature in December: 46.9°F

The month with the highest average low temperature is August (74.3°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).

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Average pressure in December
Cedar Mill Run, LA

Average pressure in December - Cedar Mill Run, LA
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in December
Cedar Mill Run, LA

Average wind speed in December - Cedar Mill Run, LA
  • Average wind speed in December: 6.3mph

The windiest months (with the highest average wind speed) are February and April (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.3mph).

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Average humidity in December
Cedar Mill Run, LA

Average humidity in December - Cedar Mill Run, LA
  • Average humidity in December: 81%

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

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Average rainfall in December
Cedar Mill Run, LA

Average rainfall in December - Cedar Mill Run, LA
  • Average rainfall in December: 0.47"

The wettest month (with the highest rainfall) is July (1.1").
The driest months (with the least rainfall) are March and September (0.28").

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Average rainfall days in December
Cedar Mill Run, LA

Average rainfall days in December - Cedar Mill Run, LA
  • Average rainfall days in December: 6.5 days

The month with the highest number of rainy days is July (12.4 days).
The month with the least rainy days is November (4.6 days).

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Average snowfall days in December
Cedar Mill Run, LA

Average snowfall days in December - Cedar Mill Run, LA
  • Average snowfall days in December: 0.1 days

The months with the highest number of snowfall days are January and December (0.1 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
Cedar Mill Run, LA

Average daylight in December / Average sunshine in December - Cedar Mill Run, 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: 4h and 5min

The months with the most sunshine are June and August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

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Average sunshine days in December
Cedar Mill Run, LA

Average sunshine days in December - Cedar Mill Run, LA
  • Average sunshine days in December: 22.5 days

The month with the most sunshine days is November (24.1 days).
The month with the least sunshine days is July (12.5 days).

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Average UV index in December
Cedar Mill Run, LA

Average UV index in December - Cedar Mill Run, LA
  • Average UV index in December: 3

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

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Average cloud cover in December
Cedar Mill Run, LA

Average cloud cover in December - Cedar Mill Run, LA
  • Average cloud cover in December: 51

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

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Average visibility in December
Cedar Mill Run, LA

Average visibility in December - Cedar Mill Run, LA
  • Average visibility in December: 5mi

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

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Cedar Mill Run, Louisiana, USA

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