January weather forecast
Manassas, GA

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Weather in January

January, like December, is another mild winter month in Manassas, Georgia, with an average temperature fluctuating between 57.2°F (14°C) and 40.6°F (4.8°C).

Temperature

With average temperatures fluctuating between a high of 57.2°F (14°C) and a low of 40.6°F (4.8°C), January stands out as the coldest month.

Humidity

The least humid month in Manassas, Georgia, is January, with an average relative humidity of 71%.

Rainfall

In Manassas, in January, it is raining for 9.3 days, with typically 1.26" (32mm) of accumulated precipitation. Throughout the year, in Manassas, there are 149.6 rainfall days, and 22.52" (572mm) of precipitation is accumulated.

Snowfall

January and December are months with snowfall. January is the month with the most snowfall. Snow falls for 0.1 days and accumulates 0.08" (2mm) of snow.

Daylight

In January, the average length of the day in Manassas is 10h and 20min.
On the first day of the month, sunrise is at 7:28 am and sunset at 5:34 pm. On the last day of January, in Manassas, sunrise is at 7:22 am and sunset at 6:00 pm EST.

Sunshine

In January, the average sunshine is 5.8h.

UV index

January is the month with the lowest UV index in Manassas, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: An average UV index of 3 in January transforms into this advice:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month in Manassas?

With an average high-temperature of 57.2°F (14°C) and an average low-temperature of 40.6°F (4.8°C), January is the coldest month in Manassas.

What is the average January temperature in Manassas?

Manassas in January has an average high-temperature of 57.2°F (14°C) and an average low-temperature of 40.6°F (4.8°C).

What is the least humid month in Manassas?

The least humid month in Manassas, Georgia, is January, with an average relative humidity of 71%.

What is the average humidity in January in Manassas?

The average relative humidity in January is 71%.

How many days does it rain in January in Manassas?

In Manassas, in January, during 9.3 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.

When does it snow the most in Manassas?

January is the month with the most snowfall in Manassas. Snow falls for 0.1 days and accumulates 0.08" (2mm) of snow.

What is the last month it snows in Manassas?

January is the last month it regularly snows. During 0.1 snowfall days, in January, Manassas aggregates 0.08" (2mm) of snow.

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

In January, the average day length in Manassas is 10h and 20min.

When is the sunrise / sunset in January in Manassas?

In January, on the first day of the month, sunrise is at 7:28 am and sunset at 5:34 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 6:00 pm EST.

How long on average sun shines in January in Manassas?

The average sunshine duration in January in Manassas is 5.8h.

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

January is the month with the lowest UV index in Manassas, Georgia, with an average maximum UV index of 3.

What is the UV index reading in January in Manassas?

In January, the average daily maximum UV index in Manassas, Georgia, is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Manassas, GA

Average temperature in January - Manassas, GA
  • Average high temperature in January: 57.2°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 (57.2°F).

  • Average low temperature in January: 40.6°F

The months with the highest average low temperature are July and August (73.2°F).
The coldest month (with the lowest average low temperature) is January (40.6°F).

Average pressure in January
Manassas, GA

Average pressure in January - Manassas, GA
  • Average pressure in January: 30.15"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in January
Manassas, GA

Average wind speed in January - Manassas, GA
  • Average wind speed in January: 7mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in January
Manassas, GA

Average humidity in January - Manassas, GA
  • Average humidity in January: 71%

The months with the highest relative humidity are August, September and December (77%).
The month with the lowest relative humidity is January (71%).

Average rainfall in January
Manassas, GA

Average rainfall in January - Manassas, GA
  • Average rainfall in January: 1.26"

The wettest month (with the highest rainfall) is August (2.8").
The driest month (with the least rainfall) is November (1.14").

Average rainfall days in January
Manassas, GA

Average rainfall days in January - Manassas, GA
  • Average rainfall days in January: 9.3 days

The month with the highest number of rainy days is August (18.3 days).
The month with the least rainy days is November (7.1 days).

Average snowfall in January
Manassas, GA

Average snowfall in January - Manassas, GA
  • Average snowfall in January: 0.08"

The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in January
Manassas, GA

Average snowfall days in January - Manassas, GA
  • Average snowfall days in January: 0.1 days

The months with the highest number of snowfall days are February and March (0.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in January /
Average sunshine in January
Manassas, GA

Average daylight in January / Average sunshine in January - Manassas, GA
  • 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in January
Manassas, GA

Average sunshine days in January - Manassas, GA
  • Average sunshine days in January: 20 days

The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is July (9.7 days).

Average UV index in January
Manassas, GA

Average UV index in January - Manassas, GA
  • Average UV index in January: 3

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).

Average cloud cover in January
Manassas, GA

Average cloud cover in January - Manassas, GA
  • Average cloud cover in January: 37

The month with the most cloud cover is December (Cloud cover 42).
The months with the least cloud cover are July and October (Cloud cover 30).

Average visibility in January
Manassas, GA

Average visibility in January - Manassas, GA
  • 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).

Manassas, Georgia, USA

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