January weather forecast
New Carrollton, MD

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Weather in January

January in New Carrollton, Maryland ushers in the winter season with below freezing temperatures and a characteristic chill in the air. This makes for a weather pattern predominantly marked by cold spells followed by brief periods of respite. Snowfall can also start to become a fixture in the weather landscape, with depths reaching an average of 2.6" (66mm). Compared to the following month, January proves to be slightly harsher with a lower daylight duration. Stepping outside may require strategic layering as the weather can often be in flux.

Temperature

January brings the lowest temperatures, with an average high of 39.9°F (4.4°C) and an average low of 27.7°F (-2.4°C).

Humidity

The average relative humidity in January is 72%.

Rainfall

The month with the least rainfall is January, when the rain falls for 9.3 days and typically collects 2.01" (51mm) of precipitation.

Snowfall

Months with snowfall are January through April and December. January is the month with the most snowfall. Snow falls for 4.1 days and accumulates 2.6" (66mm) of snow.

Daylight

In January, the average length of the day is 9h and 48min.
On the first day of January, sunrise is at 7:26 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:26 pm EST.

Sunshine

In January, the average sunshine in New Carrollton is 5.1h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 2 during January morphs into the following directions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Enhance your sun protection with tightly woven, yet airy clothing. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.

Frequently asked questions

What is the coldest time of year?

In New Carrollton, January is the coldest month, with temperatures averaging a high of 39.9°F (4.4°C) and a low of 27.7°F (-2.4°C).

How cold does it get in January?

The high-temperature, in January, in New Carrollton, is 39.9°F (4.4°C), while the low-temperature averages to 27.7°F (-2.4°C).

What is the average humidity in January in New Carrollton?

In New Carrollton, the average relative humidity in January is 72%.

What is the driest month?

The month with the least rainfall in New Carrollton is January, when the rain falls for 9.3 days and typically collects 2.01" (51mm) of precipitation.

How much does it rain in January?

In New Carrollton, in January, it is raining for 9.3 days, with typically 2.01" (51mm) of accumulated precipitation.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 4.1 days and typically aggregates up to 2.6" (66mm) of snow.

How many days does it snow in January?

In New Carrollton, during January, snow falls for 4.1 days and regularly aggregates up to 2.6" (66mm) of snow.

What is the average length of the day in January?

The average day length in January is 9h and 48min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:26 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:26 pm EST.

How many hours of sunshine does New Carrollton have in January?

In New Carrollton, the average sunshine duration in January is 5.1h.

What is the month with the lowest UV index?

The months with the lowest UV index are January and December, with an average maximum UV index of 2.

What is the UV index reading in January?

In New Carrollton, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
New Carrollton, MD

Average temperature in January - New Carrollton, MD
  • Average high temperature in January: 39.9°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in January: 27.7°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

Average pressure in January
New Carrollton, MD

Average pressure in January - New Carrollton, MD
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in January
New Carrollton, MD

Average wind speed in January - New Carrollton, MD
  • Average wind speed in January: 7.9mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in January
New Carrollton, MD

Average humidity in January - New Carrollton, MD
  • Average humidity in January: 72%

The months with the highest relative humidity are May, October and December (76%).
The months with the lowest relative humidity are April and July (71%).

Average rainfall in January
New Carrollton, MD

Average rainfall in January - New Carrollton, MD
  • Average rainfall in January: 2.01"

The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is January (2.01").

Average rainfall days in January
New Carrollton, MD

Average rainfall days in January - New Carrollton, MD
  • Average rainfall days in January: 9.3 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is November (9 days).

Average snowfall in January
New Carrollton, MD

Average snowfall in January - New Carrollton, MD
  • Average snowfall in January: 2.6"

The month with the highest snowfall is January (2.6").
The months with the least snowfall are May, June, July, August, September, October and November (0").

Average snowfall days in January
New Carrollton, MD

Average snowfall days in January - New Carrollton, MD
  • Average snowfall days in January: 4.1 days

The month with the highest number of snowfall days is January (4.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
New Carrollton, MD

Average daylight in January / Average sunshine in January - New Carrollton, MD
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in January: 5h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in January
New Carrollton, MD

Average sunshine days in January - New Carrollton, MD
  • Average sunshine days in January: 18.6 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).

Average UV index in January
New Carrollton, MD

Average UV index in January - New Carrollton, MD
  • Average UV index in January: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in January
New Carrollton, MD

Average cloud cover in January - New Carrollton, MD
  • Average cloud cover in January: 43

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in January
New Carrollton, MD

Average visibility in January - New Carrollton, MD
  • 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).

New Carrollton, Maryland, USA

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