January weather forecast
Granville Summit, PA

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Weather in January

January, like December, is a freezing cold winter month in Granville Summit, Pennsylvania, with an average temperature varying between 28.8°F (-1.8°C) and 17.4°F (-8.1°C).

Temperature

Granville Summit's coldest temperatures are experienced in January, with average high temperatures of 28.8°F (-1.8°C) and lows of 17.4°F (-8.1°C).

Humidity

In January, the average relative humidity in Granville Summit is 83%.

Rainfall

January and November are months with the least rain when the rain falls for 8.7 days and typically aggregates up to 1.77" (45mm) of rain.

Snowfall

Months with snowfall are January through May, October through December. In Granville Summit, in January, snow falls for 18.3 days, with typically accumulated 6.06" (154mm) of snow. Throughout the year, there are 74.9 snowfall days, and 30.08" (764mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 34min.
On the first day of the month, sunrise is at 7:34 am and sunset at 4:46 pm. On the last day of January, sunrise is at 7:20 am and sunset at 5:20 pm EST.

Sunshine

In Granville Summit, the average sunshine in January is 3.3h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In January, the maximum UV index of 1 translates into these guidelines:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

January, noted for its average high-temperature of 28.8°F (-1.8°C) and an average low-temperature of 17.4°F (-8.1°C), is considered the coldest month.

How cold is it in Granville Summit in January?

An average high-temperature, in January, in Granville Summit, is 28.8°F (-1.8°C) and the average low-temperature is 17.4°F (-8.1°C).

What is the average humidity in January?

The average relative humidity in January is 83%.

What is the driest month?

January and November are months with the least rain when the rain falls for 8.7 days and typically aggregates up to 1.77" (45mm) of rain.

How much does it rain in January?

In Granville Summit, Pennsylvania, during January, the rain falls for 8.7 days and regularly aggregates up to 1.77" (45mm) of precipitation.

How much does it snow in January?

In January, it is snowing for 18.3 days. Throughout January, 6.06" (154mm) of snow is accumulated.

How many hours of daylight does Granville Summit have in January?

In January, the average day length in Granville Summit, Pennsylvania, is 9h and 34min.

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 7:34 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:20 pm EST.

How long on average sun shines in January?

The average sunshine duration in January is 3.3h.

What is the month with the lowest UV index?

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

What is the UV index reading in January?

In Granville Summit, the average daily maximum UV index in January is 1. 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
Granville Summit, PA

Average temperature in January - Granville Summit, PA
  • Average high temperature in January: 28.8°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in January: 17.4°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

Average pressure in January
Granville Summit, PA

Average pressure in January - Granville Summit, PA
  • Average pressure in January: 30.08"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).

Average wind speed in January
Granville Summit, PA

Average wind speed in January - Granville Summit, PA
  • Average wind speed in January: 8.6mph

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in January
Granville Summit, PA

Average humidity in January - Granville Summit, PA
  • Average humidity in January: 83%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is July (78%).

Average rainfall in January
Granville Summit, PA

Average rainfall in January - Granville Summit, PA
  • Average rainfall in January: 1.77"

The wettest months (with the highest rainfall) are April and July (2.91").
The driest months (with the least rainfall) are January and November (1.77").

Average rainfall days in January
Granville Summit, PA

Average rainfall days in January - Granville Summit, PA
  • Average rainfall days in January: 8.7 days

The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (8.6 days).

Average snowfall in January
Granville Summit, PA

Average snowfall in January - Granville Summit, PA
  • Average snowfall in January: 6.06"

The month with the highest snowfall is February (7.2").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Granville Summit, PA

Average snowfall days in January - Granville Summit, PA
  • Average snowfall days in January: 18.3 days

The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Granville Summit, PA

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

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in January: 3h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The months with the least sunshine are February and December (Average sunshine: 3h and 12min).

Average sunshine days in January
Granville Summit, PA

Average sunshine days in January - Granville Summit, PA
  • Average sunshine days in January: 9.6 days

The month with the most sunshine days is September (14 days).
The month with the least sunshine days is February (7.7 days).

Average UV index in January
Granville Summit, PA

Average UV index in January - Granville Summit, 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).

Average cloud cover in January
Granville Summit, PA

Average cloud cover in January - Granville Summit, PA
  • Average cloud cover in January: 67

The months with the most cloud cover are January, February and December (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 39).

Average visibility in January
Granville Summit, PA

Average visibility in January - Granville Summit, PA
  • Average visibility in January: 5mi

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

Granville Summit, Pennsylvania, USA

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