December weather forecast
Jacinto, MS

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Weather in December

December, the first month of the winter in Jacinto, is still a cool month, with an average temperature varying between 51.8°F (11°C) and 38.3°F (3.5°C).

Temperature

With December's onset, the weather reveals a slight temperature decrease, transitioning from a mild 59.5°F (15.3°C) in November to a cool 51.8°F (11°C). Jacinto observes an average nighttime low-temperature of 38.3°F (3.5°C) during the month of December.

Humidity

March and December, with an average relative humidity of 80%, are the most humid months.

Rainfall

In December, the rain falls for 12.3 days. Throughout December, 2.83" (72mm) of precipitation is accumulated. In Jacinto, during the entire year, the rain falls for 158.6 days and collects up to 32.95" (837mm) of precipitation.

Snowfall

Months with snowfall in Jacinto are January through March, November and December. In December, it is snowing for 0.8 days. Throughout December, 0.2" (5mm) of snow is accumulated. In Jacinto, during the entire year, snow falls for 6.1 days and aggregates up to 1.34" (34mm) 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 December in Jacinto, sunrise is at 6:43 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 4:53 pm CST.

Sunshine

In Jacinto, the average sunshine in December is 4.7h.

UV index

With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Jun 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures?

An average high-temperature, in December, in Jacinto, is 51.8°F (11°C) and the average low-temperature is 38.3°F (3.5°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in September is evaluated at 93.2°F (34°C).

What are the most humid months?

The months with the highest humidity are March and December, with an average relative humidity of 80%.

What is the average humidity in December?

In December, the average relative humidity is 80%.

How much does it rain in December?

In Jacinto, in December, during 12.3 rainfall days, 2.83" (72mm) of precipitation is typically accumulated.

How much does it snow in December?

In Jacinto, during December, snow falls for 0.8 days and regularly aggregates up to 0.2" (5mm) of snow.

What is the month with the shortest days?

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

What is the average length of the day in December?

The average day length in December is 9h and 52min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:43 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 4:53 pm CST.

How long on average sun shines in December?

In December, the average sunshine duration is 4.7h.

What is the month with the lowest UV index?

December is the month with the lowest UV index, with an average maximum UV index of 2.

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
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
Jacinto, MS

Average temperature in December - Jacinto, MS
  • Average high temperature in December: 51.8°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (48.4°F).

  • Average low temperature in December: 38.3°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (34°F).

Average pressure in December
Jacinto, MS

Average pressure in December - Jacinto, 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 (29.96"Hg).

Average wind speed in December
Jacinto, MS

Average wind speed in December - Jacinto, MS
  • Average wind speed in December: 7.1mph

The windiest month (with the highest average wind speed) is February (7.6mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).

Average humidity in December
Jacinto, MS

Average humidity in December - Jacinto, MS
  • Average humidity in December: 80%

The months with the highest relative humidity are March and December (80%).
The month with the lowest relative humidity is October (72%).

Average rainfall in December
Jacinto, MS

Average rainfall in December - Jacinto, MS
  • Average rainfall in December: 2.83"

The wettest month (with the highest rainfall) is February (3.94").
The driest month (with the least rainfall) is November (1.85").

Average rainfall days in December
Jacinto, MS

Average rainfall days in December - Jacinto, MS
  • Average rainfall days in December: 12.3 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (9.2 days).

Average snowfall in December
Jacinto, MS

Average snowfall in December - Jacinto, MS
  • Average snowfall in December: 0.2"

The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Jacinto, MS

Average snowfall days in December - Jacinto, MS
  • Average snowfall days in December: 0.8 days

The month with the highest number of snowfall days is January (2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Jacinto, MS

Average daylight in December / Average sunshine in December - Jacinto, 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 4min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in December
Jacinto, MS

Average sunshine days in December - Jacinto, MS
  • Average sunshine days in December: 17.1 days

The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is July (10.6 days).

Average UV index in December
Jacinto, MS

Average UV index in December - Jacinto, MS
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in December
Jacinto, MS

Average cloud cover in December - Jacinto, MS
  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is September (Cloud cover 29).

Average visibility in December
Jacinto, MS

Average visibility in December - Jacinto, MS
  • Average visibility in December: 6mi

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

Jacinto, Mississippi, USA

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