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, the same as December, in Jackson, Mississippi, is a moderate winter month, with average temperature varying between 56.1°F (13.4°C) and 35.2°F (1.8°C).

Temperature

January is the coldest month, with an average high-temperature of 56.1°F (13.4°C) and an average low-temperature of 35.2°F (1.8°C).

Humidity

In January, the average relative humidity is 76.2%.

Rainfall

In Jackson, in January, during 9.8 rainfall days, 5" (126.2mm) of precipitation is typically accumulated. Throughout the year, in Jackson, there are 108.6 rainfall days, and 54.1" (1375.2mm) of precipitation is accumulated.

Daylight

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

Sunshine

In January, the average sunshine in Jackson is 5h.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for the ordinary person.
Note: In January, the average maximum UV index of 3 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the coldest month in Jackson?

With an average high-temperature of 56.1°F (13.4°C) and an average low-temperature of 35.2°F (1.8°C), January is the coldest month.

What is the temperature in January in Jackson?

The average high-temperature, in January, in Jackson, is 56.1°F (13.4°C), while the average low-temperature is 35.2°F (1.8°C).

What is the average humidity in January in Jackson?

In Jackson, the average relative humidity in January is 76.2%.

How much does it rain in Jackson in January?

In Jackson, in January, during 9.8 rainfall days, 5" (126.2mm) of precipitation is typically accumulated.

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 long on average sun shines in January in Jackson?

The average sunshine in January in Jackson, Mississippi, is 5h.

What are the months with the lowest UV index in Jackson?

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

What is the UV index reading in January in Jackson?

In Jackson, Mississippi, the average daily maximum UV index in January is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV rays.
Average temperature in January - Jackson, MS
  • Average high temperature in January: 56.1°F

Warmest months (with the highest average high temperature) are July and August (91.6°F).
The month with the lowest average high temperature is January (56.1°F).

  • Average low temperature in January: 35.3°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (35.3°F).

Average humidity in January - Jackson, MS
  • Average humidity in January: 76.2%

The month with the highest relative humidity is September (77.3%).
The month with the lowest relative humidity is March (71.1%).

Average rainfall in January - Jackson, MS
  • Average rainfall in January: 5"

The wettest month (with the highest rainfall) is December (5.2").
The driest month (with the lowest rainfall) is September (3").

Average rainfall days in January - Jackson, MS
  • Average rainfall days in January: 9.8 days

The month with the highest number of rainy days is July (10.7 days).
The month with the lowest number of rainy days is September (7 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: 5h

The month with most sunshine is June (Average sunshine: 10h).
The month with least sunshine is December (Average sunshine: 4.9h).

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

Months with the highest UV index are May, June, July and August (UV index 10).
Months with the lowest UV index are January and December (UV index 3).