January weather forecast
Yerkes, PA

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Weather in January

January, like December, in Yerkes, Pennsylvania, is an icy winter month, with an average temperature varying between 36°F (2.2°C) and 23.9°F (-4.5°C).

Temperature

January stands out as Yerkes's coldest month, with temperatures ranging between an average high of 36°F (2.2°C) and a low of 23.9°F (-4.5°C).

Humidity

In Yerkes, the average relative humidity in January is 76%.

Rainfall

In January, in Yerkes, the rain falls for 6.9 days. Throughout January, 0.87" (22mm) of precipitation is accumulated. Throughout the year, there are 132.3 rainfall days, and 13.98" (355mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Yerkes are January through March, November and December. The months with the most snowfall are January and February, with an average 0.59" (15mm) of accumulated snow.

Daylight

In January, the average length of the day is 9h and 42min.
On the first day of the month, sunrise is at 7:24 am and sunset at 4:46 pm. On the last day of January, in Yerkes, sunrise is at 7:11 am and sunset at 5:18 pm EST.

Sunshine

In Yerkes, the average sunshine in January is 4.8h.

UV index

The months with the lowest UV index in Yerkes are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In January, a daily maximum UV index of 2 leads to the following instructions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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Frequently asked questions

What are the coldest months in Yerkes?

In Yerkes, Pennsylvania, the average lowest temperatures are observed in January, with a high of 36°F (2.2°C) and a low of 23.9°F (-4.5°C).

How cold is January in Yerkes?

Yerkes in January has an average high-temperature of 36°F (2.2°C) and an average low-temperature of 23.9°F (-4.5°C).

What is the average humidity in January in Yerkes?

In January, the average relative humidity in Yerkes, Pennsylvania, is 76%.

How much does it rain in Yerkes in January?

In Yerkes, Pennsylvania, during January, the rain falls for 6.9 days and regularly aggregates up to 0.87" (22mm) of precipitation.

What is the snowiest month in Yerkes?

The months with the most snowfall in Yerkes are January and February, with an average 0.59" (15mm) of accumulated snow.

How much does it snow in Yerkes in January?

In Yerkes, Pennsylvania, in January, snow falls for 4.8 days, with typically accumulated 0.59" (15mm) of snow.

How many hours of daylight does Yerkes have in January?

The average day length in January is 9h and 42min.

When is the sunrise / sunset in January in Yerkes?

In January, on the first day of the month, sunrise is at 7:24 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:18 pm EST.

How many hours of sunshine does Yerkes have in January?

In January, the average sunshine duration in Yerkes is 4.8h.

When is the lowest UV index in Yerkes?

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

What is the UV index intensity in January in Yerkes?

In Yerkes, Pennsylvania, the average daily maximum UV index in January 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
Yerkes, PA

Average temperature in January - Yerkes, PA
  • Average high temperature in January: 36°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in January: 23.9°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

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Average pressure in January
Yerkes, PA

Average pressure in January - Yerkes, 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
Yerkes, PA

Average wind speed in January - Yerkes, 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 (5.2mph).

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Average humidity in January
Yerkes, PA

Average humidity in January - Yerkes, PA
  • Average humidity in January: 76%

The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are April and July (74%).

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Average rainfall in January
Yerkes, PA

Average rainfall in January - Yerkes, PA
  • Average rainfall in January: 0.87"

The wettest month (with the highest rainfall) is August (1.77").
The driest month (with the least rainfall) is February (0.75").

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Average rainfall days in January
Yerkes, PA

Average rainfall days in January - Yerkes, PA
  • Average rainfall days in January: 6.9 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (6.9 days).

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Average snowfall in January
Yerkes, PA

Average snowfall in January - Yerkes, PA
  • Average snowfall in January: 0.59"

The months with the highest snowfall are January and February (0.59").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in January
Yerkes, PA

Average snowfall days in January - Yerkes, PA
  • Average snowfall days in January: 4.8 days

The month with the highest number of snowfall days is February (4.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in January: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in January
Yerkes, PA

Average sunshine days in January - Yerkes, PA
  • Average sunshine days in January: 20.7 days

The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is June (12.8 days).

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Average UV index in January
Yerkes, PA

Average UV index in January - Yerkes, PA
  • 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, March, November and December (UV index 2).

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Average cloud cover in January
Yerkes, PA

Average cloud cover in January - Yerkes, PA
  • Average cloud cover in January: 46

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in January
Yerkes, PA

Average visibility in January - Yerkes, PA
  • Average visibility in January: 6mi

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

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Yerkes, Pennsylvania, USA

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