January weather forecast
Dellwood, MD

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Weather in January

January, like December, in Dellwood, Maryland, is another cold winter month, with an average temperature ranging between max 40.3°F (4.6°C) and min 29.8°F (-1.2°C).

Temperature

Dellwood, Maryland, experiences its lowest average temperatures in January, reaching a peak of 40.3°F (4.6°C) and a minimum of 29.8°F (-1.2°C).

Humidity

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

Rainfall

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.

Snowfall

January through March, November and December are months with snowfall. 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.

Daylight

In January, the average length of the day is 9h and 48min.
On the first day of January, 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.

Sunshine

The average sunshine in January is 5.3h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 2 in January translates into this advice:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

Frequently asked questions

What month is the coldest?

Temperature readings reach their annual highs in January, averaging 40.3°F (4.6°C) and a minimum average of 29.8°F (-1.2°C).

Is it cold during January?

The high-temperature during January is 40.3°F (4.6°C) and the low-temperature is 29.8°F (-1.2°C).

What is the least humid month?

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

What is the average humidity in January?

The average relative humidity in January is 72%.

What is the driest month?

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

How much does it rain in January?

In Dellwood, in January, it is raining for 6 days, with typically 0.47" (12mm) of accumulated precipitation.

What is the snowiest month 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 January, it is snowing for 2.3 days. Throughout January, 0.67" (17mm) of snow is accumulated.

How many hours of daylight does Dellwood have in January?

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

When is the sunrise / sunset in January?

On the first day of January, 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 many hours of sunshine does Dellwood have in January?

In January, the average sunshine duration is 5.3h.

What are the months with the lowest UV index?

January, February 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 of 2, and less, symbolizes 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
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Dellwood, Maryland, USA

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