January weather forecast
Trexlertown, PA

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Weather in January

January, the same as December, is another cold winter month in Trexlertown, Pennsylvania, with an average temperature varying between 34.3°F (1.3°C) and 21.6°F (-5.8°C).

Temperature

The month of January, characterized by an average high of 34.3°F (1.3°C) and a low of 21.6°F (-5.8°C), is recognized as the coldest.

Humidity

In Trexlertown, the average relative humidity in January is 78%.

Rainfall

In Trexlertown, in January, it is raining for 8.5 days, with typically 2.36" (60mm) of accumulated precipitation. Throughout the year, there are 155.8 rainfall days, and 30.75" (781mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Trexlertown. In January, it is snowing for 8.8 days. Throughout January, 4.17" (106mm) of snow is accumulated. Throughout the year, there are 29.4 snowfall days, and 15.87" (403mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 40min.
On the first day of January, sunrise is at 7:25 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:18 pm EST.

Sunshine

The average sunshine in January is 4.6h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A typical high UV index of 2 in January suggests the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

In Trexlertown, the lowest temperatures are generally noted in January, averaging a high of 34.3°F (1.3°C) and a low of 21.6°F (-5.8°C).

How cold is January?

The average high-temperature and low-temperature during January are 34.3°F (1.3°C) and 21.6°F (-5.8°C) respectively.

What is the average humidity in January?

In January, the average relative humidity is 78%.

How many days does it rain in January?

In January, the rain falls for 8.5 days. Throughout January, 2.36" (60mm) of precipitation is accumulated.

How many days does it snow in January?

In January, in Trexlertown, it is snowing for 8.8 days. Throughout January, 4.17" (106mm) of snow is accumulated.

What is the average length of the day in January?

In Trexlertown, the average day length in January is 9h and 40min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:25 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:18 pm EST.

How long on average sun shines in January in Trexlertown?

The average sunshine duration in January is 4.6h.

What is the month with the lowest UV index?

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

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 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
Trexlertown, PA

Average temperature in January - Trexlertown, PA
  • Average high temperature in January: 34.3°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in January: 21.6°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in January
Trexlertown, PA

Average pressure in January - Trexlertown, 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).

Average wind speed in January
Trexlertown, PA

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

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in January
Trexlertown, PA

Average humidity in January - Trexlertown, PA
  • Average humidity in January: 78%

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April and July (76%).

Average rainfall in January
Trexlertown, PA

Average rainfall in January - Trexlertown, PA
  • Average rainfall in January: 2.36"

The wettest month (with the highest rainfall) is April (2.99").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in January
Trexlertown, PA

Average rainfall days in January - Trexlertown, PA
  • Average rainfall days in January: 8.5 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (8.5 days).

Average snowfall in January
Trexlertown, PA

Average snowfall in January - Trexlertown, PA
  • Average snowfall in January: 4.17"

The month with the highest snowfall is March (4.29").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Trexlertown, PA

Average snowfall days in January - Trexlertown, PA
  • Average snowfall days in January: 8.8 days

The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Trexlertown, 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 18min).

  • Average sunshine in January: 4h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

Average sunshine days in January
Trexlertown, PA

Average sunshine days in January - Trexlertown, PA
  • Average sunshine days in January: 17 days

The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is April (11.2 days).

Average UV index in January
Trexlertown, PA

Average UV index in January - Trexlertown, PA
  • Average UV index in January: 2

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in January
Trexlertown, PA

Average cloud cover in January - Trexlertown, PA
  • Average cloud cover in January: 49

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in January
Trexlertown, PA

Average visibility in January - Trexlertown, PA
  • Average visibility in January: 5mi

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

Trexlertown, Pennsylvania, USA

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