January weather forecast
McComb, MS

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Weather in January

The chilly month of January brings a mild winter season to McComb, Mississippi, while the moderate rainfall results in wet conditions. There's a noticeable dip in daylight hours, compared to the preceding months, resulting in shorter days and longer nights. This combines with an increase in humidity to foster a cool, damp environment. The month experiences both the lowest daylight hours at 10.4 and longest hours of darkness. Despite this, a fair bit of sunshine still manages to peep through the clouds, offering a respite to the residents.

Temperature

January proves to be the coldest month, recording an average maximum temperature of 56.7°F (13.7°C) and a minimum temperature of 39.7°F (4.3°C).

Humidity

In January, the average relative humidity is 79%.

Rainfall

In McComb, in January, it is raining for 9.3 days, with typically 1.18" (30mm) of accumulated precipitation. Throughout the year, there are 151.2 rainfall days, and 17.8" (452mm) of precipitation is accumulated.

Snowfall

Months with snowfall in McComb are January, March and December. The months with the most snowfall are January and December, with an average 0.12" (3mm) of accumulated snow.

Daylight

The average length of the day in January in McComb is 10h and 23min.
On the first day of January in McComb, sunrise is at 7:00 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 5:35 pm CST.

Sunshine

In McComb, the average sunshine in January is 5.2h.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index in McComb, Mississippi. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average UV index of 3 in January transforms into this advice:
Prioritize safety - Suggestions to prevent sun damage are offered. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What are the coldest months in McComb?

McComb experiences its average lowest temperatures in January, reaching a peak of 56.7°F (13.7°C) and a minimum of 39.7°F (4.3°C).

What is the temperature in January in McComb?

An average high-temperature, in January, in McComb, is 56.7°F (13.7°C) and the average low-temperature is 39.7°F (4.3°C).

What is the average humidity in January in McComb?

In McComb, Mississippi, the average relative humidity in January is 79%.

How much does it rain in McComb in January?

In January, in McComb, the rain falls for 9.3 days. Throughout January, 1.18" (30mm) of precipitation is accumulated.

When does it snow the most in McComb?

The months with the most snowfall are January and December, with an average 0.12" (3mm) of accumulated snow.

What is the last month it snows in McComb?

January is the last month it regularly snows in McComb, Mississippi. During 0.3 snowfall days, in January, McComb aggregates 0.12" (3mm) of snow.

How many hours of daylight does McComb have in January?

The average day length in January in McComb is 10h and 23min.

When are sunrise and sunset in January in McComb?

In January, on the first day of the month, sunrise is at 7:00 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 5:35 pm CST.

How long on average sun shines in January in McComb?

The average sunshine duration in January in McComb, Mississippi, is 5.2h.

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

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

How high is the UV index in January in McComb?

The average daily maximum UV index in January in McComb is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
59°F 15°C
56.7°F 13.7°C
61.2°F 16.2°C
Average low temperature
43.7°F 6.5°C
39.7°F 4.3°C
44.4°F 6.9°C
Average pressure
30.14" 766mmHg
30.17" 766mmHg
30.12" 765mmHg
Average wind speed
6.5mph 10.5km/h
6.7mph 10.8km/h
6.8mph 10.9km/h
Average max. wind speed
7mph 11.3km/h
7.1mph 11.4km/h
7.2mph 11.6km/h
Average wind speed gusts
10.8mph 17.4km/h
10.9mph 17.5km/h
11mph 17.7km/h
Average humidity
82%
79%
82%
Average rainfall
1.26" 32mm
1.18" 30mm
1.1" 28mm
Average rainfall days
10.7
9.3
10.2
Average snowfall
0.12" 3mm
0.12" 3mm
0" 0mm
Average snowfall days
0.3
0.3
0.2
Average daylight
10h 1min
10h 2min
11h 1min
Average sunshine
4h 5min
5h 1min
4h 5min
Average sunshine days
17.4
19.5
15.3
Average UV index
3
3
4
Average cloud cover
51%
44%
51%
Average visibility
5mi 8km
5mi 8km
5mi 8km

Average temperature in January
McComb, MS

Average temperature in January - McComb, MS
  • Average high temperature in January: 56.7°F

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (56.7°F).

  • Average low temperature in January: 39.7°F

The months with the highest average low temperature are July and August (72.1°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).

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Average pressure in January
McComb, MS

Average pressure in January - McComb, MS
  • Average pressure in January: 30.17"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).

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Average wind speed in January
McComb, MS

Average wind speed in January - McComb, MS
  • Average wind speed in January: 6.7mph

The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).

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Average humidity in January
McComb, MS

Average humidity in January - McComb, MS
  • Average humidity in January: 79%

The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in January
McComb, MS

Average rainfall in January - McComb, MS
  • Average rainfall in January: 1.18"

The wettest month (with the highest rainfall) is August (2.6").
The driest month (with the least rainfall) is November (0.79").

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Average rainfall days in January
McComb, MS

Average rainfall days in January - McComb, MS
  • Average rainfall days in January: 9.3 days

The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (6.9 days).

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Average snowfall in January
McComb, MS

Average snowfall in January - McComb, MS
  • Average snowfall in January: 0.12"

The months with the highest snowfall are January and December (0.12").
The months with the least snowfall are February, April, May, June, July, August, September, October and November (0").

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Average snowfall days in January
McComb, MS

Average snowfall days in January - McComb, MS
  • Average snowfall days in January: 0.3 days

The months with the highest number of snowfall days are January and December (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

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

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

  • Average sunshine in January: 5h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

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Average sunshine days in January
McComb, MS

Average sunshine days in January - McComb, MS
  • Average sunshine days in January: 19.5 days

The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is July (8.9 days).

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Average UV index in January
McComb, MS

Average UV index in January - McComb, 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
McComb, MS

Average cloud cover in January - McComb, MS
  • Average cloud cover in January: 44

The months with the most cloud cover are February and December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 30).

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Average visibility in January
McComb, MS

Average visibility in January - McComb, MS
  • Average visibility in January: 5mi

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

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McComb, Mississippi, USA

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