January weather forecast
Germantown, MD

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Weather in January

January delivers the coldest air of the year to Germantown with temperatures plunging to a low of 25.2°F (-3.8°C). The chilly weather is often accompanied by a fair bit of rainfall, contributing to high levels of relative humidity. Despite the generally overcast skies, the city enjoys nearly 10 hours of daylight. Wintry gusts are typical with the wind speed peaking at 12.3mph (19.8km/h). Conditions can sometimes turn harsh with snowfall making a frequent appearance.

Temperature

Germantown witnesses the coldest weather in January, with temperatures averaging a high of 38.8°F (3.8°C) and a low of 25.2°F (-3.8°C).

Humidity

In January, the average relative humidity is 74%.

Rainfall

January and February are months with the least rain when the rain falls for 9.5 days and typically aggregates up to 1.97" (50mm) of rain.

Snowfall

Months with snowfall are January through May, November and December. In Germantown, in January, during 5.8 snowfall days, 2.68" (68mm) of snow is typically accumulated. Throughout the year, there are 19.1 snowfall days, and 10.04" (255mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 47min.
On the first day of January, sunrise is at 7:28 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 5:28 pm EST.

Sunshine

January has the least sunshine of the year, with an average of 5h of sunshine.

UV index

January, February, November 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 minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 2 in January translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

During the coldest month in Germantown, January, temperatures average a high of 38.8°F (3.8°C) and a low of 25.2°F (-3.8°C).

Is it cold during January?

In Germantown, in January, the average high-temperature is 38.8°F (3.8°C), and the average low-temperature is 25.2°F (-3.8°C).

What is the average humidity in January?

In Germantown, the average relative humidity in January is 74%.

What is the driest month?

January and February are months with the least rain when the rain falls for 9.5 days and typically aggregates up to 1.97" (50mm) of rain.

How much does it rain in January?

In Germantown, Maryland, in January, during 9.5 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

How much does it snow in January?

In January, it is snowing for 5.8 days. Throughout January, 2.68" (68mm) of snow is accumulated.

What is the average length of the day in January?

In Germantown, the average day length in January is 9h and 47min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:28 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 5:28 pm EST.

What is the month with the least sunshine?

With an average of 5h of sunshine, January has the least sunshine of the year in Germantown.

How long on average sun shines in January?

The average sunshine duration in January is 5h.

What are the months with the lowest UV index?

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

What is the UV index intensity in January?

The average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
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
Germantown, MD

Average temperature in January - Germantown, MD
  • Average high temperature in January: 38.8°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in January: 25.2°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

Average pressure in January
Germantown, MD

Average pressure in January - Germantown, 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
Germantown, MD

Average wind speed in January - Germantown, MD
  • Average wind speed in January: 7.6mph

The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in January
Germantown, MD

Average humidity in January - Germantown, MD
  • Average humidity in January: 74%

The months with the highest relative humidity are October and December (78%).
The month with the lowest relative humidity is July (72%).

Average rainfall in January
Germantown, MD

Average rainfall in January - Germantown, MD
  • Average rainfall in January: 1.97"

The wettest month (with the highest rainfall) is August (3.78").
The driest months (with the least rainfall) are January and February (1.97").

Average rainfall days in January
Germantown, MD

Average rainfall days in January - Germantown, MD
  • Average rainfall days in January: 9.5 days

The month with the highest number of rainy days is May (17.5 days).
The months with the least rainy days are January and November (9.5 days).

Average snowfall in January
Germantown, MD

Average snowfall in January - Germantown, MD
  • Average snowfall in January: 2.68"

The month with the highest snowfall is March (2.83").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in January
Germantown, MD

Average snowfall days in January - Germantown, MD
  • Average snowfall days in January: 5.8 days

The months with the highest number of snowfall days are January and February (5.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
Germantown, MD

Average daylight in January / Average sunshine in January - Germantown, 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 0min

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

Average sunshine days in January
Germantown, MD

Average sunshine days in January - Germantown, MD
  • Average sunshine days in January: 17.7 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in January
Germantown, MD

Average UV index in January - Germantown, 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, February, November and December (UV index 2).

Average cloud cover in January
Germantown, MD

Average cloud cover in January - Germantown, MD
  • Average cloud cover in January: 45

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
Germantown, MD

Average visibility in January - Germantown, 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).

Germantown, Maryland, USA

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