January weather forecast
Stoney Brook, MD

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Weather in January

January, the same as December, is a wintry winter month in Stoney Brook, Maryland, with an average temperature varying between 39°F (3.9°C) and 26.2°F (-3.2°C).

Temperature

The coldest period tends to be January, when average temperatures fluctuate between a high of 39°F (3.9°C) and a low of 26.2°F (-3.2°C).

Humidity

The average relative humidity in January is 73%.

Rainfall

January is the month with the least rainfall. Rain falls for 9.3 days and accumulates 2.17" (55mm) of precipitation.

Snowfall

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

Daylight

In January, the average length of the day is 9h and 48min.
On the first day of the month, sunrise is at 7:27 am and sunset at 4:56 pm. On the last day of January, sunrise is at 7:15 am and sunset at 5:27 pm EST.

Sunshine

In Stoney Brook, the average sunshine in January is 5.1h.

UV index

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 2 in January leads to these recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Boost your sun resistance with garments that are densely woven yet spacious. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.

Frequently asked questions

What is the coldest month in Stoney Brook?

The month of January sees the average lowest temperatures, reaching 39°F (3.9°C) at the peak and 26.2°F (-3.2°C) at the low.

How cold is it in Stoney Brook in January?

Stoney Brook in January has an average high-temperature of 39°F (3.9°C) and an average low-temperature of 26.2°F (-3.2°C).

What is the average humidity in January in Stoney Brook?

In January, the average relative humidity is 73%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 9.3 days and accumulates 2.17" (55mm) of precipitation.

How much does it rain in January?

In Stoney Brook, in January, it is raining for 9.3 days, with typically 2.17" (55mm) of accumulated precipitation.

When does it snow the most?

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

What is the average length of the day in January?

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 7:27 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.

How many hours of sunshine does Stoney Brook have in January?

The average sunshine duration in January is 5.1h.

What is the month with the lowest UV index?

January, 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 January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health threat from unsafe 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
Stoney Brook, MD

Average temperature in January - Stoney Brook, 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
Stoney Brook, MD

Average pressure in January - Stoney Brook, 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
Stoney Brook, MD

Average wind speed in January - Stoney Brook, 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
Stoney Brook, MD

Average humidity in January - Stoney Brook, 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
Stoney Brook, MD

Average rainfall in January - Stoney Brook, 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
Stoney Brook, MD

Average rainfall days in January - Stoney Brook, 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
Stoney Brook, MD

Average snowfall in January - Stoney Brook, 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
Stoney Brook, MD

Average snowfall days in January - Stoney Brook, 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
Stoney Brook, MD

Average daylight in January / Average sunshine in January - Stoney Brook, 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 December (Average sunshine: 4h and 54min).

Average sunshine days in January
Stoney Brook, MD

Average sunshine days in January - Stoney Brook, MD
  • Average sunshine days in January: 18.1 days

The month with the most sunshine days is November (19.5 days).
The months with the least sunshine days are May and July (11 days).

Average UV index in January
Stoney Brook, MD

Average UV index in January - Stoney Brook, 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
Stoney Brook, MD

Average cloud cover in January - Stoney Brook, 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
Stoney Brook, MD

Average visibility in January - Stoney Brook, 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).

Stoney Brook, Maryland, USA

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