January weather forecast
Wheaton Forest, MD

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Weather in January

January, the same as December, is an icy winter month in Wheaton Forest, Maryland, with an average temperature varying between 39°F (3.9°C) and 26.2°F (-3.2°C).

Temperature

January is the month when Wheaton Forest sees the lowest average temperatures, with a high of 39°F (3.9°C) and a low of 26.2°F (-3.2°C).

Humidity

In Wheaton Forest, the average relative humidity in January is 73%.

Rainfall

January is the month with the least rainfall. Rain falls for 9.3 days and accumulates 2.17" (55mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. The months with the most snowfall are January and March, with an average 3.03" (77mm) of accumulated snow.

Daylight

In January, the average length of the day is 9h and 48min.
On the first day of January, sunrise is at 7:27 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:27 pm EST.

Sunshine

The average sunshine in January is 5.1h.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In January, the average maximum UV index of 2 translates into the following recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.

Frequently asked questions

What are the coldest months in Wheaton Forest?

Wheaton Forest's coldest month, January, registers temperatures that range from a high of 39°F (3.9°C) to a low of 26.2°F (-3.2°C).

Is January cold?

The high-temperature, in January, in Wheaton Forest, is 39°F (3.9°C), while the low-temperature averages to 26.2°F (-3.2°C).

What is the average humidity in January?

In Wheaton Forest, the average relative humidity in January is 73%.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 9.3 days and typically collects 2.17" (55mm) of precipitation.

How many days does it rain in January?

In Wheaton Forest, in January, during 9.3 rainfall days, 2.17" (55mm) of precipitation is typically accumulated.

What is the snowiest month?

The months with the most snowfall are January and March, with an average 3.03" (77mm) of accumulated snow.

How much does it snow in January?

In Wheaton Forest, in January, during 5.1 snowfall days, 3.03" (77mm) of snow is typically accumulated.

How many hours of daylight does Wheaton Forest have in January?

In Wheaton Forest, the average day length in January is 9h and 48min.

When are sunrise and sunset in January in Wheaton Forest?

On the first day of January, sunrise is at 7:27 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:27 pm EST.

How many hours of sunshine does Wheaton Forest have in January?

The average sunshine duration in January is 5.1h.

When is the lowest UV index in Wheaton Forest?

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

What is the UV index reading in January?

In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Wheaton Forest, MD

Average temperature in January - Wheaton Forest, MD
  • Average high temperature in January: 39°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in January: 26.2°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in January
Wheaton Forest, MD

Average pressure in January - Wheaton Forest, 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 (29.95"Hg).

Average wind speed in January
Wheaton Forest, MD

Average wind speed in January - Wheaton Forest, MD
  • Average wind speed in January: 7.8mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in January
Wheaton Forest, MD

Average humidity in January - Wheaton Forest, MD
  • Average humidity in January: 73%

The months with the highest relative humidity are May, October and December (76%).
The month with the lowest relative humidity is July (70%).

Average rainfall in January
Wheaton Forest, MD

Average rainfall in January - Wheaton Forest, MD
  • Average rainfall in January: 2.17"

The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (2.17").

Average rainfall days in January
Wheaton Forest, MD

Average rainfall days in January - Wheaton Forest, MD
  • Average rainfall days in January: 9.3 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in January
Wheaton Forest, MD

Average snowfall in January - Wheaton Forest, MD
  • Average snowfall in January: 3.03"

The months with the highest snowfall are January and March (3.03").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Wheaton Forest, MD

Average snowfall days in January - Wheaton Forest, MD
  • Average snowfall days in January: 5.1 days

The months with the highest number of snowfall days are January and February (5.1 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
Wheaton Forest, MD

Average daylight in January / Average sunshine in January - Wheaton Forest, 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 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in January
Wheaton Forest, MD

Average sunshine days in January - Wheaton Forest, MD
  • Average sunshine days in January: 18.1 days

The month with the most sunshine days is November (19.4 days).
The months with the least sunshine days are May and July (11 days).

Average UV index in January
Wheaton Forest, MD

Average UV index in January - Wheaton Forest, 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, November and December (UV index 2).

Average cloud cover in January
Wheaton Forest, MD

Average cloud cover in January - Wheaton Forest, MD
  • Average cloud cover in January: 45

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in January
Wheaton Forest, MD

Average visibility in January - Wheaton Forest, MD
  • Average visibility in January: 6mi

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

Wheaton Forest, Maryland, USA

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