January weather forecast
Dellwood, MD

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Weather in January

January, like December, in Dellwood, Maryland, is a wintry winter month, with an average temperature varying between 40.3°F (4.6°C) and 29.8°F (-1.2°C).

Temperature

Dellwood reaches its lowest average temperatures in January, measuring 40.3°F (4.6°C) at the peak and 29.8°F (-1.2°C) at the lowest.

Humidity

January, March, April and November, with an average relative humidity of 72%, are the least humid months.

Rainfall

January is the month with the least rainfall in Dellwood. Rain falls for 6 days and accumulates 0.47" (12mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. January is the month with the most snowfall. Snow falls for 2.3 days and accumulates 0.67" (17mm) of snow.

Daylight

The average length of the day in January in Dellwood is 9h and 48min.
On the first day of the month, sunrise is at 7:24 am and sunset at 4:54 pm. On the last day of January, in Dellwood, sunrise is at 7:13 am and sunset at 5:25 pm EST.

Sunshine

The average sunshine in January is 5.3h.

UV index

The months with the lowest UV index in Dellwood, Maryland, are January, February 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 rays for ordinary individuals.
Note: The maximum daily UV index of 2 during January translates into the following directions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Frequently asked questions

What are the coldest months in Dellwood?

January is the coldest month in Dellwood, with an average high-temperature of 40.3°F (4.6°C) and an average low-temperature of 29.8°F (-1.2°C).

Is it cold in Dellwood during January?

The high-temperature, in January, in Dellwood, records 40.3°F (4.6°C), while the low-temperature is 29.8°F (-1.2°C).

What are the least humid months in Dellwood?

January, March, April and November, with an average relative humidity of 72%, are the least humid months.

What is the average humidity in January in Dellwood?

The average relative humidity in January in Dellwood is 72%.

What is the driest month in Dellwood?

The month with the least rainfall in Dellwood is January, when the rain falls for 6 days and typically collects 0.47" (12mm) of precipitation.

How many days does it rain in January in Dellwood?

In Dellwood, during January, the rain falls for 6 days and regularly aggregates up to 0.47" (12mm) of precipitation.

When does it snow the most in Dellwood?

The month with the most snowfall is January, when snow falls for 2.3 days and typically aggregates up to 0.67" (17mm) of snow.

How many days does it snow in January in Dellwood?

In Dellwood, during January, snow falls for 2.3 days and regularly aggregates up to 0.67" (17mm) of snow.

What is the average length of the day in January in Dellwood?

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

What time are sunrise and sunset in January in Dellwood?

On the first day of January in Dellwood, sunrise is at 7:24 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:25 pm EST.

How long on average sun shines in January in Dellwood?

In Dellwood, the average sunshine duration in January is 5.3h.

What are the months with the lowest UV index in Dellwood?

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

What is the UV index reading in January in Dellwood?

In January, the average daily maximum UV index in Dellwood, Maryland, is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to 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
Dellwood, MD

Average temperature in January - Dellwood, MD
  • Average high temperature in January: 40.3°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (40.3°F).

  • Average low temperature in January: 29.8°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

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Average pressure in January
Dellwood, MD

Average pressure in January - Dellwood, MD
  • Average pressure in January: 30.1"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in January
Dellwood, MD

Average wind speed in January - Dellwood, MD
  • Average wind speed in January: 10mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average humidity in January
Dellwood, MD

Average humidity in January - Dellwood, MD
  • Average humidity in January: 72%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).

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Average rainfall in January
Dellwood, MD

Average rainfall in January - Dellwood, MD
  • Average rainfall in January: 0.47"

The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in January
Dellwood, MD

Average rainfall days in January - Dellwood, MD
  • Average rainfall days in January: 6 days

The months with the highest number of rainy days are July and August (14.3 days).
The month with the least rainy days is November (5.3 days).

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Average snowfall in January
Dellwood, MD

Average snowfall in January - Dellwood, MD
  • Average snowfall in January: 0.67"

The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in January
Dellwood, MD

Average snowfall days in January - Dellwood, MD
  • Average snowfall days in January: 2.3 days

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Dellwood, 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 2min

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).

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Average sunshine days in January
Dellwood, MD

Average sunshine days in January - Dellwood, MD
  • Average sunshine days in January: 23 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is August (13.8 days).

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Average UV index in January
Dellwood, MD

Average UV index in January - Dellwood, 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 and December (UV index 2).

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Average cloud cover in January
Dellwood, MD

Average cloud cover in January - Dellwood, MD
  • Average cloud cover in January: 43

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in January
Dellwood, MD

Average visibility in January - Dellwood, 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).

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Dellwood, Maryland, USA

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