January weather forecast
Gwynn Oak, MD

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Weather in January

January, like December, in Gwynn Oak, Maryland, is a wintry winter month, with an average temperature fluctuating between 26.1°F (-3.3°C) and 37.9°F (3.3°C).

Temperature

January, known for its average high temperature of 37.9°F (3.3°C) and an average low temperature of 26.1°F (-3.3°C), is the coldest month.

Humidity

In January, the average relative humidity is 74%.

Rainfall

The months with the least rainfall are January and February Rain falls for 9.1 days and accumulates 2.01" (51mm) of rain.

Snowfall

January through April, November and December are months with snowfall. In January, it is snowing for 5.3 days. Throughout January, 2.24" (57mm) of snow is accumulated. In Gwynn Oak, during the entire year, snow falls for 18.7 days and aggregates up to 8.54" (217mm) of snow.

Daylight

In Gwynn Oak, the average length of the day in January is 9h and 46min.
On the first day of the month, sunrise is at 7:26 am and sunset at 4:53 pm. On the last day of January, in Gwynn Oak, sunrise is at 7:14 am and sunset at 5:25 pm EST.

Sunshine

In Gwynn Oak, Maryland, the average sunshine in January is 5.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Gwynn Oak. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: The daily high UV index of 2 during January translates into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

What are the coldest months in Gwynn Oak?

Gwynn Oak, Maryland, reaches its average lowest temperatures in January, measuring 37.9°F (3.3°C) at the peak and 26.1°F (-3.3°C) at the lowest.

How cold does it get in Gwynn Oak in January?

January temperatures in Gwynn Oak, Maryland, vary between a high-temperature of 37.9°F (3.3°C) and a low-temperature of 26.1°F (-3.3°C).

What is the average humidity in January in Gwynn Oak?

The average relative humidity in January in Gwynn Oak, Maryland, is 74%.

What is the driest month in Gwynn Oak?

The months with the least rainfall are January and February Rain falls for 9.1 days and accumulates 2.01" (51mm) of rain.

How much does it rain in Gwynn Oak in January?

In Gwynn Oak, during January, the rain falls for 9.1 days and regularly aggregates up to 2.01" (51mm) of precipitation.

How much does it snow in Gwynn Oak in January?

In Gwynn Oak, Maryland, during January, snow falls for 5.3 days and regularly aggregates up to 2.24" (57mm) of snow.

How many hours of daylight does Gwynn Oak have in January?

The average day length in January is 9h and 46min.

When are sunrise and sunset in January in Gwynn Oak?

In January, on the first day of the month, sunrise is at 7:26 am and sunset at 4:53 pm. On the last day of the month, in Gwynn Oak, sunrise is at 7:14 am and sunset at 5:25 pm EST.

How long on average sun shines in January in Gwynn Oak?

The average sunshine duration in January is 5.1h.

What is the month with the lowest UV index in Gwynn Oak?

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

What is the UV index reading in January in Gwynn Oak?

In Gwynn Oak, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health risk 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
Gwynn Oak, MD

Average temperature in January - Gwynn Oak, MD
  • Average high temperature in January: 37.9°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in January: 26.1°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

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Average pressure in January
Gwynn Oak, MD

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

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in January
Gwynn Oak, MD

Average wind speed in January - Gwynn Oak, MD
  • Average wind speed in January: 8.8mph

The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in January
Gwynn Oak, MD

Average humidity in January - Gwynn Oak, MD
  • Average humidity in January: 74%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is July (72%).

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Average rainfall in January
Gwynn Oak, MD

Average rainfall in January - Gwynn Oak, MD
  • Average rainfall in January: 2.01"

The wettest month (with the highest rainfall) is August (3.94").
The driest months (with the least rainfall) are January and February (2.01").

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Average rainfall days in January
Gwynn Oak, MD

Average rainfall days in January - Gwynn Oak, MD
  • Average rainfall days in January: 9.1 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (8.8 days).

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Average snowfall in January
Gwynn Oak, MD

Average snowfall in January - Gwynn Oak, MD
  • Average snowfall in January: 2.24"

The month with the highest snowfall is March (2.72").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Gwynn Oak, MD

Average snowfall days in January - Gwynn Oak, MD
  • Average snowfall days in January: 5.3 days

The months with the highest number of snowfall days are January and February (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Gwynn Oak, MD

Average daylight in January / Average sunshine in January - Gwynn Oak, 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).

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Average sunshine days in January
Gwynn Oak, MD

Average sunshine days in January - Gwynn Oak, MD
  • Average sunshine days in January: 17.8 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (10.7 days).

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Average UV index in January
Gwynn Oak, MD

Average UV index in January - Gwynn Oak, 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
Gwynn Oak, MD

Average cloud cover in January - Gwynn Oak, MD
  • Average cloud cover in January: 44

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in January
Gwynn Oak, MD

Average visibility in January - Gwynn Oak, 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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Gwynn Oak, Maryland, USA

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