January weather forecast
Aspen Hill, MD

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Weather in January

January, like December, in Aspen Hill, Maryland, is an icy winter month, with an average temperature ranging between max 39°F (3.9°C) and min 26.2°F (-3.2°C).

Temperature

Aspen Hill experiences its lowest average temperatures in January, reaching a peak of 39°F (3.9°C) and a minimum of 26.2°F (-3.2°C).

Humidity

The average relative humidity in January in Aspen Hill is 73%.

Rainfall

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

Snowfall

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

Daylight

In Aspen Hill, the average length of the day in January is 9h and 47min.
On the first day of January in Aspen Hill, 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

In January, the average sunshine 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 reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: In January, the average maximum UV index of 2 translates into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Feb 12, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What time of the year is the coldest in Aspen Hill?

Temperature records in Aspen Hill, Maryland, mark January as the coldest month, with highs averaging 39°F (3.9°C) and lows at 26.2°F (-3.2°C).

How cold does it get in Aspen Hill in January?

The high-temperature in Aspen Hill, Maryland, during January is 39°F (3.9°C) and the low-temperature is 26.2°F (-3.2°C).

What is the average humidity in January in Aspen Hill?

In Aspen Hill, Maryland, the average relative humidity in January is 73%.

What is the driest month in Aspen Hill?

The month with the least rainfall in Aspen Hill, Maryland, 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 Aspen Hill?

In Aspen Hill, Maryland, during January, the rain falls for 9.3 days and regularly aggregates up to 2.17" (55mm) of precipitation.

When does it snow the most in Aspen Hill?

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

How many days does it snow in January in Aspen Hill?

In Aspen Hill, during January, snow falls for 5.1 days and regularly aggregates up to 3.03" (77mm) of snow.

How many hours of daylight does Aspen Hill have in January?

In Aspen Hill, Maryland, the average day length in January is 9h and 47min.

When is the sunrise / sunset in January in Aspen Hill?

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

How long on average sun shines in January in Aspen Hill?

The average sunshine duration in January in Aspen Hill, Maryland, is 5.1h.

When is the lowest UV index in Aspen Hill?

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

How high is the UV index in January in Aspen Hill?

In Aspen Hill, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
45.3°F 7.4°C
39°F 3.9°C
43.9°F 6.6°C
Average low temperature
32.9°F 0.5°C
26.2°F -3.2°C
28.8°F -1.8°C
Average pressure
30.11" 765mmHg
30.11" 765mmHg
30.07" 764mmHg
Average wind speed
7.1mph 11.4km/h
7.8mph 12.6km/h
7.9mph 12.7km/h
Average max. wind speed
7.8mph 12.6km/h
8.5mph 13.7km/h
8.5mph 13.7km/h
Average wind speed gusts
11.4mph 18.3km/h
12.3mph 19.8km/h
12.6mph 20.3km/h
Average humidity
76%
73%
75%
Average rainfall
2.76" 70mm
2.17" 55mm
2.2" 56mm
Average rainfall days
10.2
9.3
9.5
Average snowfall
1.38" 35mm
3.03" 77mm
2.32" 59mm
Average snowfall days
2.9
5.1
5.1
Average daylight
9h 3min
9h 5min
10h 5min
Average sunshine
5h 1min
5h 1min
5h 0min
Average sunshine days
17.5
18.1
14.6
Average UV index
2
2
3
Average cloud cover
45%
45%
45%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Aspen Hill, MD

Average temperature in January - Aspen Hill, 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
Aspen Hill, MD

Average pressure in January - Aspen Hill, 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
Aspen Hill, MD

Average wind speed in January - Aspen Hill, 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
Aspen Hill, MD

Average humidity in January - Aspen Hill, 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
Aspen Hill, MD

Average rainfall in January - Aspen Hill, 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
Aspen Hill, MD

Average rainfall days in January - Aspen Hill, 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
Aspen Hill, MD

Average snowfall in January - Aspen Hill, 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
Aspen Hill, MD

Average snowfall days in January - Aspen Hill, 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
Aspen Hill, MD

Average daylight in January / Average sunshine in January - Aspen Hill, 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
Aspen Hill, MD

Average sunshine days in January - Aspen Hill, 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
Aspen Hill, MD

Average UV index in January - Aspen Hill, 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
Aspen Hill, MD

Average cloud cover in January - Aspen Hill, 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
Aspen Hill, MD

Average visibility in January - Aspen Hill, 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).

Aspen Hill, Maryland, USA

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