January weather forecast
Byrnsville, PA

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Weather in January

January, the same as December, in Byrnsville, Pennsylvania, is another subzero cold winter month, with an average temperature varying between 19.8°F (-6.8°C) and 31.8°F (-0.1°C).

Temperature

January, with its high-temperature average of 31.8°F (-0.1°C) and a low-temperature average of 19.8°F (-6.8°C), is the coldest month.

Humidity

In Byrnsville, the average relative humidity in January is 80%.

Rainfall

In January, in Byrnsville, Pennsylvania, the rain falls for 8.9 days. Throughout January, 2.2" (56mm) of precipitation is accumulated. In Byrnsville, during the entire year, the rain falls for 159.6 days and collects up to 29.41" (747mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 12.8 days and typically aggregates up to 5.98" (152mm) of snow.

Daylight

In Byrnsville, the average length of the day in January is 9h and 38min.
On the first day of January, sunrise is at 7:29 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 5:20 pm EST.

Sunshine

The average sunshine in January is 4.3h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In January, a daily UV index of 2 turns into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. It's recommended to limit sun exposure when its radiation is at its peak during midday. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What month is the coldest in Byrnsville?

Byrnsville's coldest month, January, registers temperatures that range from a high of 31.8°F (-0.1°C) to a low of 19.8°F (-6.8°C).

How cold is January in Byrnsville?

During January, Byrnsville experiences an average high-temperature of 31.8°F (-0.1°C) and a low-temperature of 19.8°F (-6.8°C).

What is the average humidity in January in Byrnsville?

In January, the average relative humidity is 80%.

How much does it rain in Byrnsville in January?

In Byrnsville, Pennsylvania, during January, the rain falls for 8.9 days and regularly aggregates up to 2.2" (56mm) of precipitation.

When does it snow the most in Byrnsville?

The month with the most snowfall is January, when snow falls for 12.8 days and typically aggregates up to 5.98" (152mm) of snow.

How many days does it snow in January in Byrnsville?

In Byrnsville, in January, during 12.8 snowfall days, 5.98" (152mm) of snow is typically accumulated.

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

In January, the average day length is 9h and 38min.

When is the sunrise / sunset in January in Byrnsville?

In January, on the first day of the month, sunrise is at 7:29 am and sunset at 4:48 pm. On the last day of the month, in Byrnsville, Pennsylvania, sunrise is at 7:16 am and sunset at 5:20 pm EST.

How long on average sun shines in January in Byrnsville?

In January, the average sunshine duration in Byrnsville, Pennsylvania, is 4.3h.

When is the lowest UV index in Byrnsville?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Byrnsville.

How high is the UV index in January in Byrnsville?

In Byrnsville, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents 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
Byrnsville, PA

Average temperature in January - Byrnsville, PA
  • Average high temperature in January: 31.8°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.8°F).

  • Average low temperature in January: 19.8°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in January
Byrnsville, PA

Average pressure in January - Byrnsville, PA
  • Average pressure in January: 30.09"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
Byrnsville, PA

Average wind speed in January - Byrnsville, PA
  • Average wind speed in January: 8.1mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in January
Byrnsville, PA

Average humidity in January - Byrnsville, PA
  • Average humidity in January: 80%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).

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Average rainfall in January
Byrnsville, PA

Average rainfall in January - Byrnsville, PA
  • Average rainfall in January: 2.2"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days in January
Byrnsville, PA

Average rainfall days in January - Byrnsville, PA
  • Average rainfall days in January: 8.9 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (8.9 days).

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Average snowfall in January
Byrnsville, PA

Average snowfall in January - Byrnsville, PA
  • Average snowfall in January: 5.98"

The month with the highest snowfall is January (5.98").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Byrnsville, PA

Average snowfall days in January - Byrnsville, PA
  • Average snowfall days in January: 12.8 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Byrnsville, PA

Average daylight in January / Average sunshine in January - Byrnsville, PA
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in January: 4h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

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Average sunshine days in January
Byrnsville, PA

Average sunshine days in January - Byrnsville, PA
  • Average sunshine days in January: 13.9 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (10.3 days).

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Average UV index in January
Byrnsville, PA

Average UV index in January - Byrnsville, PA
  • Average UV index in January: 2

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in January
Byrnsville, PA

Average cloud cover in January - Byrnsville, PA
  • Average cloud cover in January: 53

The months with the most cloud cover are February and December (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in January
Byrnsville, PA

Average visibility in January - Byrnsville, PA
  • Average visibility in January: 5mi

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).

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Byrnsville, Pennsylvania, USA

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