December weather forecast
Horn Lake, MS

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Weather in December

Horn Lake concludes the year with the onset of winter in December. As temperatures continue to dip, the city experiences a brisk change in weather conditions. Despite an increase in the relative humidity and cloud%, the sunshine duration and visibility remain broadly unaltered, emphasizing December's winter glare. Interestingly, a rise in wind speed without impacting visibility makes winter brevity a unique feature of the city. December's weather distinction ascends with a return of snowfall, recording a seasonal high of 0.2" (5mm), announcing the full onset of winter.

Temperature

In Horn Lake, entering December brings a subtle temperature decrement, reducing from November's mild 59.5°F (15.3°C) to a cool 51.1°F (10.6°C). Horn Lake records an average low of 38.5°F (3.6°C) throughout the nights in December.

Humidity

The months with the highest humidity are March and December, with an average relative humidity of 78%.

Rainfall

In Horn Lake, during December, the rain falls for 10.7 days and regularly aggregates up to 2.76" (70mm) of precipitation. In Horn Lake, Mississippi, during the entire year, the rain falls for 147.4 days and collects up to 27.76" (705mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In Horn Lake, in December, snow falls for 0.7 days, with typically accumulated 0.2" (5mm) of snow. In Horn Lake, during the entire year, snow falls for 4.6 days and aggregates up to 1.06" (27mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 6:50 am and sunset at 4:48 pm. On the last day of December, sunrise is at 7:07 am and sunset at 4:59 pm CST.

Sunshine

In Horn Lake, the average sunshine in December is 4.9h.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 3 during December translates into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's radiation is especially intense around midday; try to stay in shade during this period. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December?

December temperatures vary between a high-temperature of 51.1°F (10.6°C) and a low-temperature of 38.5°F (3.6°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is appraised at 91.4°F (33°C).

What is the most humid month?

March and December, with an average relative humidity of 78%, are most humid months.

What is the average humidity in December?

The average relative humidity in December is 78%.

How much does it rain in December?

In Horn Lake, in December, during 10.7 rainfall days, 2.76" (70mm) of precipitation is typically accumulated.

How much does it snow in December?

In December, it is snowing for 0.7 days. Throughout December, 0.2" (5mm) of snow is accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 54min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 51min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:50 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:59 pm CST.

How long on average sun shines in December?

In Horn Lake, the average sunshine duration in December is 4.9h.

When is the lowest UV index?

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

What is the UV index intensity in December?

The average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Horn Lake, MS

Average temperature in December - Horn Lake, MS
  • Average high temperature in December: 51.1°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (47.3°F).

  • Average low temperature in December: 38.5°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (34°F).

Average pressure in December
Horn Lake, MS

Average pressure in December - Horn Lake, MS
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Horn Lake, MS

Average wind speed in December - Horn Lake, MS
  • Average wind speed in December: 8.2mph

The windiest month (with the highest average wind speed) is February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in December
Horn Lake, MS

Average humidity in December - Horn Lake, MS
  • Average humidity in December: 78%

The months with the highest relative humidity are March and December (78%).
The month with the lowest relative humidity is October (69%).

Average rainfall in December
Horn Lake, MS

Average rainfall in December - Horn Lake, MS
  • Average rainfall in December: 2.76"

The wettest month (with the highest rainfall) is April (3.07").
The driest month (with the least rainfall) is January (1.46").

Average rainfall days in December
Horn Lake, MS

Average rainfall days in December - Horn Lake, MS
  • Average rainfall days in December: 10.7 days

The month with the highest number of rainy days is August (16.4 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in December
Horn Lake, MS

Average snowfall in December - Horn Lake, MS
  • Average snowfall in December: 0.2"

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

Average snowfall days in December
Horn Lake, MS

Average snowfall days in December - Horn Lake, MS
  • Average snowfall days in December: 0.7 days

The month with the highest number of snowfall days is January (1.5 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
Horn Lake, MS

Average daylight in December / Average sunshine in December - Horn Lake, MS
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in December
Horn Lake, MS

Average sunshine days in December - Horn Lake, MS
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is October (20.7 days).
The month with the least sunshine days is August (11.7 days).

Average UV index in December
Horn Lake, MS

Average UV index in December - Horn Lake, MS
  • Average UV index in December: 3

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

Average cloud cover in December
Horn Lake, MS

Average cloud cover in December - Horn Lake, MS
  • Average cloud cover in December: 46

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 26).

Average visibility in December
Horn Lake, MS

Average visibility in December - Horn Lake, MS
  • 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).

Horn Lake, Mississippi, USA

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