January weather forecast
Tullytown, PA

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Weather in January

January, like December, in Tullytown, Pennsylvania, is another cold winter month, with temperature in the range of an average low of 25.2°F (-3.8°C) and an average high of 37°F (2.8°C).

Temperature

January, with its high-temperature average of 37°F (2.8°C) and a low-temperature average of 25.2°F (-3.8°C), is the coldest month.

Humidity

In Tullytown, the average relative humidity in January is 75%.

Rainfall

The month with the least rainfall in Tullytown is January, when the rain falls for 8 days and typically collects 1.89" (48mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In Tullytown, in January, snow falls for 4.8 days, with typically accumulated 1.57" (40mm) of snow. In Tullytown, during the entire year, snow falls for 15.9 days and aggregates up to 8.5" (216mm) of snow.

Daylight

The average length of the day in January is 9h and 42min.
On the first day of the month, sunrise is at 7:21 am and sunset at 4:43 pm. On the last day of January, sunrise is at 7:09 am and sunset at 5:16 pm EST.

Sunshine

In January, the average sunshine is 5.1h.

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 minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In January, the maximum UV index of 2 transforms into these recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.

Frequently asked questions

What is the coldest month?

January, with average temperatures reaching a high of 37°F (2.8°C) and a low of 25.2°F (-3.8°C), is the coldest month.

How cold is it in January?

The high-temperature, in January, in Tullytown, records 37°F (2.8°C), while the low-temperature is 25.2°F (-3.8°C).

What is the average humidity in January?

The average relative humidity in January is 75%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 8 days and accumulates 1.89" (48mm) of precipitation.

How many days does it rain in January?

In Tullytown, during January, the rain falls for 8 days and regularly aggregates up to 1.89" (48mm) of precipitation.

How much does it snow in January?

In Tullytown, in January, snow falls for 4.8 days, with typically accumulated 1.57" (40mm) of snow.

How many hours of daylight does Tullytown have in January?

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

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:21 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:16 pm EST.

How many hours of sunshine does Tullytown have in January?

In January, the average sunshine duration is 5.1h.

What are the months 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 intensity in January?

In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health threat 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
Tullytown, PA

Average temperature in January - Tullytown, PA
  • Average high temperature in January: 37°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in January: 25.2°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

Average pressure in January
Tullytown, PA

Average pressure in January - Tullytown, PA
  • Average pressure in January: 30.08"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
Tullytown, PA

Average wind speed in January - Tullytown, PA
  • Average wind speed in January: 8.3mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in January
Tullytown, PA

Average humidity in January - Tullytown, PA
  • Average humidity in January: 75%

The months with the highest relative humidity are February and October (78%).
The month with the lowest relative humidity is April (72%).

Average rainfall in January
Tullytown, PA

Average rainfall in January - Tullytown, PA
  • Average rainfall in January: 1.89"

The wettest month (with the highest rainfall) is July (3.66").
The driest month (with the least rainfall) is January (1.89").

Average rainfall days in January
Tullytown, PA

Average rainfall days in January - Tullytown, PA
  • Average rainfall days in January: 8 days

The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is January (8 days).

Average snowfall in January
Tullytown, PA

Average snowfall in January - Tullytown, PA
  • Average snowfall in January: 1.57"

The month with the highest snowfall is March (2.99").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in January
Tullytown, PA

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

The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Tullytown, 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: 5h and 1min

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 48min).

Average sunshine days in January
Tullytown, PA

Average sunshine days in January - Tullytown, PA
  • Average sunshine days in January: 19.8 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (9.9 days).

Average UV index in January
Tullytown, PA

Average UV index in January - Tullytown, 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
Tullytown, PA

Average cloud cover in January - Tullytown, PA
  • Average cloud cover in January: 44

The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in January
Tullytown, PA

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

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

Tullytown, Pennsylvania, USA

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