January weather forecast
Slatington, PA

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Weather in January

January, the same as December, is another cold winter month in Slatington, Pennsylvania, with temperature in the range of an average high of 32.5°F (0.3°C) and an average low of 20.3°F (-6.5°C).

Temperature

In Slatington, Pennsylvania, January is the coldest month, with temperatures averaging a high of 32.5°F (0.3°C) and a low of 20.3°F (-6.5°C).

Humidity

The average relative humidity in January is 80%.

Rainfall

In January, the rain falls for 7.6 days. Throughout January, 2.17" (55mm) of precipitation is accumulated. In Slatington, during the entire year, the rain falls for 155.1 days and collects up to 29.45" (748mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. The months with the most snowfall are January and March, with an average 4.41" (112mm) of accumulated snow.

Daylight

The average length of the day in January is 9h and 39min.
On the first day of January, sunrise is at 7:26 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

In Slatington, Pennsylvania, the average sunshine in January is 4.5h.

UV index

In Slatington, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 2 during January leads to these advisories:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

The coldest period is January, when temperatures fluctuate between an average high of 32.5°F (0.3°C) and a low of 20.3°F (-6.5°C).

How cold is it in January?

January temperatures vary between a high-temperature of 32.5°F (0.3°C) and a low-temperature of 20.3°F (-6.5°C).

What is the average humidity in January in Slatington?

In Slatington, the average relative humidity in January is 80%.

How many days does it rain in January?

In January, the rain falls for 7.6 days. Throughout January, 2.17" (55mm) of precipitation is accumulated.

What is the snowiest month?

The months with the most snowfall are January and March, with an average 4.41" (112mm) of accumulated snow.

How much does it snow in January?

In January, in Slatington, it is snowing for 9.3 days. Throughout January, 4.41" (112mm) of snow is accumulated.

How many hours of daylight does Slatington have in January?

In January, the average day length is 9h and 39min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:26 am and sunset at 4:45 pm. On the last day of the month, in Slatington, sunrise is at 7:13 am and sunset at 5:18 pm EST.

How long on average sun shines in January?

In Slatington, the average sunshine duration in January is 4.5h.

How high is the UV index in January?

In Slatington, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Slatington, PA

Average temperature in January - Slatington, PA
  • Average high temperature in January: 32.5°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in January: 20.3°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in January
Slatington, PA

Average pressure in January - Slatington, 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
Slatington, PA

Average wind speed in January - Slatington, 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 (5mph).

Average humidity in January
Slatington, PA

Average humidity in January - Slatington, PA
  • Average humidity in January: 80%

The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are April and July (77%).

Average rainfall in January
Slatington, PA

Average rainfall in January - Slatington, PA
  • Average rainfall in January: 2.17"

The wettest month (with the highest rainfall) is July (3.03").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in January
Slatington, PA

Average rainfall days in January - Slatington, PA
  • Average rainfall days in January: 7.6 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.6 days).

Average snowfall in January
Slatington, PA

Average snowfall in January - Slatington, PA
  • Average snowfall in January: 4.41"

The months with the highest snowfall are January and March (4.41").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Slatington, PA

Average snowfall days in January - Slatington, PA
  • Average snowfall days in January: 9.3 days

The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Slatington, 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

Average sunshine days in January
Slatington, PA

Average sunshine days in January - Slatington, PA
  • Average sunshine days in January: 17.2 days

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in January
Slatington, PA

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in January
Slatington, PA

Average cloud cover in January - Slatington, PA
  • Average cloud cover in January: 51

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 35).

Average visibility in January
Slatington, PA

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

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

Slatington, Pennsylvania, USA

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