January weather forecast
York, PA

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This courthouse of the York County, Pennsylvania, stands tall in the bright evening sunlight rays
This courthouse of the York County, Pennsylvania, stands tall in the bright evening sunlight rays

Weather in January

York, Pennsylvania, greets the New Year with chilly temperatures and a smattering of snowfall. January exhibits winter's coldest temperatures, which rise slightly from an average low of 22.6°F (-5.2°C) to an average high of 35.4°F (1.9°C). The month's cloudy skies reflect its high humidity, holding 77% on average, which aids in creating the frosty conditions often seen at this time. The city also experiences a reduction in sunlight hours and increased snowfall compared to the later months, making the landscape a picturesque winter wonderland. By the month’s end, the first signs of a weather transition become noticeable as the coldest month of the year gives way to February’s marginally milder conditions.

Temperature

During the coldest month, January, temperatures average a high of 35.4°F (1.9°C) and a low of 22.6°F (-5.2°C).

Humidity

The average relative humidity in January is 77%.

Rainfall

January is the month with the least rainfall. Rain falls for 6 days and accumulates 1.06" (27mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 6.8 days and typically aggregates up to 2.4" (61mm) of snow.

Daylight

In January, the average length of the day is 9h and 43min.
On the first day of January in York, sunrise is at 7:28 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 5:24 pm EST.

Sunshine

In January, the average sunshine is 4.8h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.

Frequently asked questions

What month is the coldest?

January, recording an average high temperature of 35.4°F (1.9°C) and a low temperature of 22.6°F (-5.2°C), is York's coldest month.

How cold is January?

In York, 35.4°F (1.9°C) is the average high-temperature and 22.6°F (-5.2°C) is the average low-temperature during January.

What is the average humidity in January?

In York, the average relative humidity in January is 77%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 6 days and accumulates 1.06" (27mm) of precipitation.

How much does it rain in January?

In York, in January, during 6 rainfall days, 1.06" (27mm) of precipitation is typically accumulated.

When does it snow the most?

January is the month with the most snowfall in York. Snow falls for 6.8 days and accumulates 2.4" (61mm) of snow.

How much does it snow in January?

In York, during January, snow falls for 6.8 days and regularly aggregates up to 2.4" (61mm) of snow.

What is the average length of the day in January?

In January, the average day length is 9h and 43min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:28 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 5:24 pm EST.

How long on average sun shines in January?

In January, the average sunshine duration is 4.8h.

What is the month with the lowest UV index?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in January?

In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
York, PA

Average temperature in January - York, PA
  • Average high temperature in January: 35.4°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in January: 22.6°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

Average pressure in January
York, PA

Average pressure in January - York, PA
  • Average pressure in January: 30.1"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).

Average wind speed in January
York, PA

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

The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in January
York, PA

Average humidity in January - York, PA
  • Average humidity in January: 77%

The months with the highest relative humidity are February, May and October (80%).
The months with the lowest relative humidity are March and April (76%).

Average rainfall in January
York, PA

Average rainfall in January - York, PA
  • Average rainfall in January: 1.06"

The wettest months (with the highest rainfall) are July and August (2.01").
The driest month (with the least rainfall) is January (1.06").

Average rainfall days in January
York, PA

Average rainfall days in January - York, PA
  • Average rainfall days in January: 6 days

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is January (6 days).

Average snowfall in January
York, PA

Average snowfall in January - York, PA
  • Average snowfall in January: 2.4"

The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
York, PA

Average snowfall days in January - York, PA
  • Average snowfall days in January: 6.8 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - York, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in January
York, PA

Average sunshine days in January - York, PA
  • Average sunshine days in January: 19.3 days

The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is May (12.8 days).

Average UV index in January
York, PA

Average UV index in January - York, 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, November and December (UV index 2).

Average cloud cover in January
York, PA

Average cloud cover in January - York, PA
  • Average cloud cover in January: 48

The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in January
York, PA

Average visibility in January - York, 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).

York, Pennsylvania, USA

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