January weather forecast
Forest Heights, MD

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Weather in January

January, like December, in Forest Heights, Maryland, is a wintry winter month, with an average temperature fluctuating between 27.7°F (-2.4°C) and 40.6°F (4.8°C).

Temperature

Forest Heights experiences its lowest temperatures in January, with an average peak of 40.6°F (4.8°C) and a low of 27.7°F (-2.4°C).

Humidity

The average relative humidity in January is 72%.

Rainfall

In Forest Heights, during January, the rain falls for 9.9 days and regularly aggregates up to 2.05" (52mm) of precipitation. In Forest Heights, during the entire year, the rain falls for 158.2 days and collects up to 30.67" (779mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. The month with the most snowfall is January, when snow falls for 4.5 days and typically aggregates up to 2.48" (63mm) of snow.

Daylight

The average length of the day in January is 9h and 49min.
On the first day of January, sunrise is at 7:26 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:27 pm EST.

Sunshine

The average sunshine in January is 5.2h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 2 during January translates into the following directions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.

Frequently asked questions

What are the coldest months?

With average high temperatures of 40.6°F (4.8°C) and lows of 27.7°F (-2.4°C), January is the coldest month in Forest Heights.

Is it cold during January?

The average high-temperature, in January, in Forest Heights, is 40.6°F (4.8°C), while the average low-temperature is 27.7°F (-2.4°C).

What is the average humidity in January?

The average relative humidity in January is 72%.

How much does it rain in January?

In January, the rain falls for 9.9 days. Throughout January, 2.05" (52mm) of precipitation is accumulated.

When does it snow the most?

January is the month with the most snowfall. Snow falls for 4.5 days and accumulates 2.48" (63mm) of snow.

How many days does it snow in January?

In Forest Heights, during January, snow falls for 4.5 days and regularly aggregates up to 2.48" (63mm) of snow.

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

The average day length in January is 9h and 49min.

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 4:56 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:27 pm EST.

How long on average sun shines in January?

In Forest Heights, the average sunshine duration in January is 5.2h.

What are the months with the lowest UV index in Forest Heights?

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 January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from 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
Forest Heights, MD

Average temperature in January - Forest Heights, MD
  • Average high temperature in January: 40.6°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (40.6°F).

  • Average low temperature in January: 27.7°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).

Average pressure in January
Forest Heights, MD

Average pressure in January - Forest Heights, 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
Forest Heights, MD

Average wind speed in January - Forest Heights, MD
  • Average wind speed in January: 7.5mph

The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in January
Forest Heights, MD

Average humidity in January - Forest Heights, 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
Forest Heights, MD

Average rainfall in January - Forest Heights, MD
  • Average rainfall in January: 2.05"

The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in January
Forest Heights, MD

Average rainfall days in January - Forest Heights, MD
  • Average rainfall days in January: 9.9 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is November (8.5 days).

Average snowfall in January
Forest Heights, MD

Average snowfall in January - Forest Heights, MD
  • Average snowfall in January: 2.48"

The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Forest Heights, MD

Average snowfall days in January - Forest Heights, MD
  • Average snowfall days in January: 4.5 days

The month with the highest number of snowfall days is January (4.5 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
Forest Heights, MD

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

The month with the longest days is June (Average daylight: 14h and 48min).
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 6min).

Average sunshine days in January
Forest Heights, MD

Average sunshine days in January - Forest Heights, MD
  • Average sunshine days in January: 17.6 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in January
Forest Heights, MD

Average UV index in January - Forest Heights, 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
Forest Heights, MD

Average cloud cover in January - Forest Heights, 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 30).

Average visibility in January
Forest Heights, MD

Average visibility in January - Forest Heights, 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).

Forest Heights, Maryland, USA

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