January weather forecast
Poolesville, MD

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Weather in January

January, the same as December, is another cold winter month in Poolesville, Maryland, with an average temperature fluctuating between 25.2°F (-3.8°C) and 38.8°F (3.8°C).

Temperature

In Poolesville, the month of January registers the lowest temperatures, averaging 38.8°F (3.8°C) at the peak and 25.2°F (-3.8°C) at the lowest.

Humidity

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

Rainfall

In January, in Poolesville, the rain falls for 6.1 days. Throughout January, 0.59" (15mm) of precipitation is accumulated. Throughout the year, in Poolesville, Maryland, there are 115.4 rainfall days, and 10.59" (269mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Poolesville are January through April, November and December. The month with the most snowfall is January, when snow falls for 3.7 days and typically aggregates up to 0.75" (19mm) of snow.

Daylight

In January, the average length of the day is 9h and 47min.
On the first day of the month, sunrise is at 7:28 am and sunset at 4:57 pm. On the last day of January, in Poolesville, Maryland, sunrise is at 7:17 am and sunset at 5:28 pm EST.

Sunshine

January and February, with an average of 5h of sunshine, are months with the least sunshine in Poolesville.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Poolesville. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 2 during January translates into the following directions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

What is the coldest month in Poolesville?

Poolesville, Maryland, records the coldest temperatures in January, averaging a high of 38.8°F (3.8°C) and a low of 25.2°F (-3.8°C).

How cold does it get in Poolesville in January?

In Poolesville, 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 Poolesville?

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

How many days does it rain in January in Poolesville?

In Poolesville, Maryland, during January, the rain falls for 6.1 days and regularly aggregates up to 0.59" (15mm) of precipitation.

What is the snowiest month in Poolesville?

January is the month with the most snowfall in Poolesville. Snow falls for 3.7 days and accumulates 0.75" (19mm) of snow.

How much does it snow in Poolesville in January?

In Poolesville, Maryland, in January, during 3.7 snowfall days, 0.75" (19mm) of snow is typically accumulated.

How many hours of daylight does Poolesville have in January?

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

When is the sunrise / sunset in January in Poolesville?

In January, on the first day of the month, sunrise is at 7:28 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:28 pm EST.

What are the months with the least sunshine in Poolesville?

January and February, with an average of 5h of sunshine, are months with the least sunshine in Poolesville.

How long on average sun shines in January in Poolesville?

The average sunshine duration in January in Poolesville is 5h.

When is the lowest UV index in Poolesville?

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 in Poolesville?

The average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health threat 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
Poolesville, MD

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

The warmest month (with the highest average high temperature) is July (86.7°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 (66.7°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

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Average pressure in January
Poolesville, MD

Average pressure in January - Poolesville, 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).

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Average wind speed in January
Poolesville, MD

Average wind speed in January - Poolesville, MD
  • Average wind speed in January: 7.3mph

The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

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Average humidity in January
Poolesville, MD

Average humidity in January - Poolesville, 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%).

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Average rainfall in January
Poolesville, MD

Average rainfall in January - Poolesville, MD
  • Average rainfall in January: 0.59"

The wettest month (with the highest rainfall) is August (1.5").
The driest month (with the least rainfall) is September (0.51").

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Average rainfall days in January
Poolesville, MD

Average rainfall days in January - Poolesville, MD
  • Average rainfall days in January: 6.1 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (6.1 days).

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Average snowfall in January
Poolesville, MD

Average snowfall in January - Poolesville, MD
  • Average snowfall in January: 0.75"

The month with the highest snowfall is January (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Poolesville, MD

Average snowfall days in January - Poolesville, MD
  • Average snowfall days in January: 3.7 days

The month with the highest number of snowfall days is February (4.1 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Poolesville, 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 48min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).

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Average sunshine days in January
Poolesville, MD

Average sunshine days in January - Poolesville, MD
  • Average sunshine days in January: 21.9 days

The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is May (14.6 days).

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Average UV index in January
Poolesville, MD

Average UV index in January - Poolesville, 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).

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Average cloud cover in January
Poolesville, MD

Average cloud cover in January - Poolesville, 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 30).

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Average visibility in January
Poolesville, MD

Average visibility in January - Poolesville, 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).

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Poolesville, Maryland, USA

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