January weather forecast
Jackson, MS

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The Capitol building and beautiful tree park in Jackson, Mississippi
The Capitol building and beautiful tree park in Jackson, Mississippi

Weather in January

January, in Jackson, Mississippi, starts off with weather conditions in the cooler range, although the area enjoys a rather moderate winter climate compared to many others. Humidity levels remain quite high, coupled with light winds and cloudiness. The mornings and nights can get particularly chilly, while the afternoons experience warmer, comfortable weather. You could experience a bit of winter rainfall, and on rare occasions, none to 0.35" (9mm) of snowfall is not unheard of. It is an ideal time for indoor activities, as the region grapples with colder temperatures from 38.5°F (3.6°C) to 54.7°F (12.6°C).

Temperature

With average temperatures fluctuating between a high of 54.7°F (12.6°C) and a low of 38.5°F (3.6°C), January stands out as the coldest month in Jackson.

Humidity

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

Rainfall

In Jackson, Mississippi, in January, it is raining for 10.4 days, with typically 2.83" (72mm) of accumulated precipitation. Throughout the year, there are 152.1 rainfall days, and 29.72" (755mm) of precipitation is accumulated.

Snowfall

January and February are months with snowfall 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.

Daylight

In January, the average length of the day in Jackson is 10h and 19min.
On the first day of the month, sunrise is at 7:01 am and sunset at 5:06 pm. On the last day of January, in Jackson, sunrise is at 6:55 am and sunset at 5:32 pm CST.

Sunshine

The average sunshine in January is 5.3h.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 3 in January interprets into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. 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. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Frequently asked questions

What is the coldest month in Jackson?

Jackson's temperature records reveal January as the coldest month, marked by average highs of 54.7°F (12.6°C) and lows of 38.5°F (3.6°C).

What are the temperatures in Jackson in January?

In January, in Jackson, 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 snow the most in Jackson?

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

When does it start to snow in Jackson?

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

How many hours of daylight does Jackson have in January?

In January, the average day length in Jackson, Mississippi, is 10h and 19min.

What time are sunrise and sunset in January in Jackson?

On the first day of January in Jackson, Mississippi, sunrise is at 7:01 am and sunset at 5:06 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 5:32 pm CST.

How long on average sun shines in January in Jackson?

The average sunshine duration in January in Jackson, Mississippi, is 5.3h.

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

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

What is the UV index reading in January in Jackson?

The average daily maximum UV index in January is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
57.2°F 14°C
54.7°F 12.6°C
59.4°F 15.2°C
Average low temperature
42.4°F 5.8°C
38.5°F 3.6°C
43°F 6.1°C
Average pressure
30.14" 766mmHg
30.17" 766mmHg
30.12" 765mmHg
Average wind speed
7.7mph 12.4km/h
8mph 12.9km/h
8mph 12.9km/h
Average max. wind speed
8.2mph 13.2km/h
8.5mph 13.7km/h
8.5mph 13.7km/h
Average wind speed gusts
12.7mph 20.4km/h
12.9mph 20.8km/h
12.9mph 20.8km/h
Average humidity
80%
77%
80%
Average rainfall
2.56" 65mm
2.83" 72mm
2.8" 71mm
Average rainfall days
11.5
10.4
11.8
Average snowfall
0" 0mm
0.35" 9mm
0.04" 1mm
Average snowfall days
0.3
1
0.4
Average daylight
10h 1min
10h 2min
11h 1min
Average sunshine
5h 0min
5h 2min
4h 5min
Average sunshine days
17.8
18.3
13.5
Average UV index
3
3
4
Average cloud cover
47%
42%
48%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Jackson, MS

Average temperature in January - Jackson, MS
  • Average high temperature in January: 54.7°F

The warmest months (with the highest average high temperature) are July and August (91.8°F).
The month with the lowest average high temperature is January (54.7°F).

  • Average low temperature in January: 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 (38.5°F).

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Average pressure in January
Jackson, MS

Average pressure in January - Jackson, MS
  • Average pressure in January: 30.17"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).

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Average wind speed in January
Jackson, MS

Average wind speed in January - Jackson, MS
  • Average wind speed in January: 8mph

The windiest months (with the highest average wind speed) are January and February (8mph).
The calmest months (with the lowest average wind speed) are July and August (5.1mph).

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Average humidity in January
Jackson, MS

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

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

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Average rainfall in January
Jackson, MS

Average rainfall in January - Jackson, MS
  • Average rainfall in January: 2.83"

The wettest month (with the highest rainfall) is April (3.46").
The driest month (with the least rainfall) is October (1.81").

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Average rainfall days in January
Jackson, MS

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 least rainy days is October (8.5 days).

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Average snowfall in January
Jackson, MS

Average snowfall in January - Jackson, MS
  • Average snowfall in January: 0.35"

The month with the highest snowfall is January (0.35").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in January
Jackson, MS

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).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in January /
Average sunshine in January
Jackson, MS

Average daylight in January / Average sunshine in January - Jackson, MS
  • Average daylight in January: 10h and 2min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in January: 5h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in January
Jackson, MS

Average sunshine days in January - Jackson, MS
  • Average sunshine days in January: 18.3 days

The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is July (11.8 days).

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Average UV index in January
Jackson, MS

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

The months with the highest UV index are 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 January
Jackson, MS

Average cloud cover in January - Jackson, MS
  • Average cloud cover in January: 42

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 28).

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Average visibility in January
Jackson, MS

Average visibility in January - Jackson, MS
  • Average visibility in January: 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).

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Jackson, Mississippi, USA

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