Jackson
Mississippi, USA
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Jackson, MS

The view of the Capitol building in Jackson, Mississippi, from a beautiful tree park
The view of the Capitol building in Jackson, Mississippi, from a beautiful tree park
January, like December, in Jackson, Mississippi, is a cool winter month, with average temperature varying between 38.5°F (3.6°C) and 54.7°F (12.6°C).

Temperature

January is the coldest month, with an average high-temperature of 54.7°F (12.6°C) and an average low-temperature of 38.5°F (3.6°C).

Humidity

In January, the average relative humidity in Jackson is 77%.

Rainfall

In Jackson, during January, the rain falls for 10.4 days and regularly aggregates up to 2.83" (72mm) of precipitation. In Jackson, during the entire year, the rain falls for 152.1 days and collects up to 29.72" (755mm) of precipitation.

Snowfall

January and February are months with snowfall in Jackson. The month with the most snowfall is January when snow falls for 1 days and typically aggregates up to 0.35" (9mm) of snow.

Daylight

In Jackson, the average length of the day is 10.3h.

Sunshine

In January, the average sunshine in Jackson is 5.3h.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index in Jackson. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to the UV radiation for the average person.
Note: In January, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the coldest month in Jackson?

The coldest month in Jackson, Mississippi, is January, with an average high-temperature of 54.7°F (12.6°C) and an average low-temperature of 38.5°F (3.6°C).

What is the temperature in January in Jackson?

In Jackson, in January, the average high-temperature is 54.7°F (12.6°C), and the average low-temperature is 38.5°F (3.6°C).

What is the average humidity in January in Jackson?

The average relative humidity in January in Jackson, Mississippi, is 77%.

How many days does it rain in January in Jackson?

In Jackson, in January, during 10.4 rainfall days, 2.83" (72mm) of precipitation is typically accumulated.

When does it start snowing in Jackson?

January is the first month it typically snows in Jackson, Mississippi. Throughout January, in the average 1 snowfall days, it receives 0.35" (9mm) of snow.

When does it snow the most in Jackson?

January is the month with the most snowfall in Jackson, Mississippi. Snow falls for 1 days and accumulates 0.35" (9mm) of snow.

What is the average length of the day in January in Jackson?

In January, the average length of the day in Jackson is 10.3h.

How many hours of sunshine does Jackson have in January?

In January, the average sunshine is 5.3h.

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

Months with the lowest UV index in Jackson, Mississippi, are January and December, with an average maximum UV index of 3.

What is the UV index reading in January in Jackson?

In January, the average daily maximum UV index in Jackson is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to the UV radiation.
Average temperature in January - Jackson, MS
  • Average high temperature in January: 12.6°C

Warmest months (with the highest average high temperature) are July and August (33.2°C).
The month with the lowest average high temperature is January (12.6°C).

  • Average low temperature in January: 3.6°C

The month with the highest average low temperature is July (22.4°C).
The coldest month (with the lowest average low temperature) is January (3.6°C).

Average humidity in January - Jackson, MS
  • Average humidity in January: 77%

Months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (69%).

Average rainfall in January - Jackson, MS
  • Average rainfall in January: 72mm

The wettest month (with the highest rainfall) is April (88mm).
The driest month (with the lowest rainfall) is October (46mm).

Average rainfall days in January - Jackson, MS
  • Average rainfall days in January: 10.4 days

The month with the highest number of rainy days is July (17 days).
The month with the lowest number of rainy days is October (8.5 days).

Average snowfall in January - Jackson, MS
  • Average snowfall in January: 9mm

The month with the highest snowfall is January (9mm).
Months with the lowest snowfall are March, April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in January - Jackson, MS
  • Average snowfall days in January: 1 days

The month with the highest number of snowfall days is January (1 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in January / Average sunshine in January - Jackson, MS
  • Average daylight in January: 10.3h

The month with the longest days is June (Average daylight: 14.3h).
The month with shortest days is December (Average daylight: 10.1h).

  • Average sunshine in January: 5.3h

The month with most sunshine is June (Average sunshine: 10.6h).
The month with least sunshine is February (Average sunshine: 4.9h).

Average UV index in January - Jackson, MS
  • Average UV index in January: 3

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