January weather forecast
Slate Run, PA

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Weather in January

January, the same as December, in Slate Run, Pennsylvania, is another subzero cold winter month, with an average temperature ranging between max 29.3°F (-1.5°C) and min 17.1°F (-8.3°C).

Temperature

The coldest period tends to be January, when average temperatures fluctuate between a high of 29.3°F (-1.5°C) and a low of 17.1°F (-8.3°C).

Humidity

The average relative humidity in January is 83%.

Rainfall

In Slate Run, in January, during 8.7 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. Throughout the year, there are 168.8 rainfall days, and 32.56" (827mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In January, it is snowing for 17.1 days. Throughout January, 8.19" (208mm) of snow is accumulated. In Slate Run, during the entire year, snow falls for 71.6 days and aggregates up to 35.47" (901mm) of snow.

Daylight

In January, the average length of the day in Slate Run is 9h and 35min.
On the first day of the month, sunrise is at 7:36 am and sunset at 4:50 pm. On the last day of January, sunrise is at 7:22 am and sunset at 5:24 pm EST.

Sunshine

January and December, with an average of 3h of sunshine, are months with the least sunshine in Slate Run.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 1 during January translates into the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Enhance your sun protection with tightly woven, yet airy clothing. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

What part of the year is the coldest in Slate Run?

Slate Run reaches its average lowest temperatures in January, measuring 29.3°F (-1.5°C) at the peak and 17.1°F (-8.3°C) at the lowest.

How cold is it in Slate Run in January?

In January, in Slate Run, the average high-temperature is 29.3°F (-1.5°C), and the average low-temperature is 17.1°F (-8.3°C).

What is the average humidity in January in Slate Run?

In January, the average relative humidity is 83%.

How much does it rain in Slate Run in January?

In January, the rain falls for 8.7 days. Throughout January, 2.28" (58mm) of precipitation is accumulated.

How much does it snow in Slate Run in January?

In Slate Run, in January, during 17.1 snowfall days, 8.19" (208mm) of snow is typically accumulated.

How many hours of daylight does Slate Run have in January?

In January, the average day length in Slate Run, Pennsylvania, is 9h and 35min.

What time are sunrise and sunset in January in Slate Run?

In January, on the first day of the month, sunrise is at 7:36 am and sunset at 4:50 pm. On the last day of the month, in Slate Run, sunrise is at 7:22 am and sunset at 5:24 pm EST.

What are the months with the least sunshine in Slate Run?

January and December, with an average of 3h of sunshine, are months with the least sunshine.

How long on average sun shines in January in Slate Run?

The average sunshine duration in January in Slate Run is 3h.

When is the lowest UV index in Slate Run?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

How high is the UV index in January in Slate Run?

In Slate Run, Pennsylvania, the average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Slate Run, PA

Average temperature in January - Slate Run, PA
  • Average high temperature in January: 29.3°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in January: 17.1°F

The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

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Average pressure in January
Slate Run, PA

Average pressure in January - Slate Run, PA
  • Average pressure in January: 30.09"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in January
Slate Run, PA

Average wind speed in January - Slate Run, PA
  • Average wind speed in January: 8mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in January
Slate Run, PA

Average humidity in January - Slate Run, PA
  • Average humidity in January: 83%

The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is July (77%).

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Average rainfall in January
Slate Run, PA

Average rainfall in January - Slate Run, PA
  • Average rainfall in January: 2.28"

The wettest month (with the highest rainfall) is April (3.7").
The driest month (with the least rainfall) is November (2.13").

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Average rainfall days in January
Slate Run, PA

Average rainfall days in January - Slate Run, PA
  • Average rainfall days in January: 8.7 days

The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (8.4 days).

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Average snowfall in January
Slate Run, PA

Average snowfall in January - Slate Run, PA
  • Average snowfall in January: 8.19"

The month with the highest snowfall is February (9.84").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Slate Run, PA

Average snowfall days in January - Slate Run, PA
  • Average snowfall days in January: 17.1 days

The month with the highest number of snowfall days is January (17.1 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
Slate Run, PA

Average daylight in January / Average sunshine in January - Slate Run, 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 12min).

  • Average sunshine in January: 3h and 0min

The month with the most sunshine is July (Average sunshine: 9h and 30min).
The months with the least sunshine are January and December (Average sunshine: 3h and 0min).

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Average sunshine days in January
Slate Run, PA

Average sunshine days in January - Slate Run, PA
  • Average sunshine days in January: 9.8 days

The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (7.9 days).

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Average UV index in January
Slate Run, PA

Average UV index in January - Slate Run, PA
  • Average UV index in January: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in January
Slate Run, PA

Average cloud cover in January - Slate Run, PA
  • Average cloud cover in January: 70

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 41).

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Average visibility in January
Slate Run, PA

Average visibility in January - Slate Run, PA
  • Average visibility in January: 4mi

The months with the highest visibility are March, April, May, June, July and November (5mi).
The months with the lowest visibility are January, February, August, September, October and December (4mi).

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Slate Run, Pennsylvania, USA

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