January weather forecast
Wernersville, PA

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Weather in January

January, the same as December, is an icy winter month in Wernersville, Pennsylvania, with an average temperature fluctuating between 35.1°F (1.7°C) and 22.1°F (-5.5°C).

Temperature

January is the coldest month, with an average high-temperature of 35.1°F (1.7°C) and an average low-temperature of 22.1°F (-5.5°C).

Humidity

The average relative humidity in January is 78%.

Rainfall

In Wernersville, in January, during 7.8 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. In Wernersville, Pennsylvania, during the entire year, the rain falls for 158.3 days and collects up to 29.76" (756mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Wernersville, in January, during 8.3 snowfall days, 3.15" (80mm) of snow is typically accumulated. Throughout the year, there are 26.5 snowfall days, and 12.64" (321mm) of snow is accumulated.

Daylight

In Wernersville, the average length of the day in January is 9h and 41min.
On the first day of the month, sunrise is at 7:27 am and sunset at 4:48 pm. On the last day of January, sunrise is at 7:14 am and sunset at 5:20 pm EST.

Sunshine

In Wernersville, the average sunshine in January is 4.7h.

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 of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily maximum UV index of 2 in January translates into the following instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.

Frequently asked questions

What are the coldest months?

In Wernersville, the average lowest temperatures are observed in January, with a high of 35.1°F (1.7°C) and a low of 22.1°F (-5.5°C).

How cold is January?

In January, in Wernersville, the average high-temperature is 35.1°F (1.7°C), and the average low-temperature is 22.1°F (-5.5°C).

What is the average humidity in January?

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

How many days does it rain in January?

In Wernersville, during January, the rain falls for 7.8 days and regularly aggregates up to 2.36" (60mm) of precipitation.

How much does it snow in January?

In Wernersville, in January, during 8.3 snowfall days, 3.15" (80mm) of snow is typically accumulated.

What is the average length of the day in January?

In January, the average day length in Wernersville is 9h and 41min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:27 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:20 pm EST.

How long on average sun shines in January?

In January, the average sunshine duration is 4.7h.

When is 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.

How high is the UV index in January?

The average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health risk 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
Wernersville, PA

Average temperature in January - Wernersville, PA
  • Average high temperature in January: 35.1°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in January: 22.1°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).

Average pressure in January
Wernersville, PA

Average pressure in January - Wernersville, PA
  • Average pressure in January: 30.09"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
Wernersville, PA

Average wind speed in January - Wernersville, PA
  • Average wind speed in January: 8.4mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in January
Wernersville, PA

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

The months with the highest relative humidity are February and October (81%).
The month with the lowest relative humidity is April (76%).

Average rainfall in January
Wernersville, PA

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

The wettest month (with the highest rainfall) is August (2.95").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in January
Wernersville, PA

Average rainfall days in January - Wernersville, PA
  • Average rainfall days in January: 7.8 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in January
Wernersville, PA

Average snowfall in January - Wernersville, PA
  • Average snowfall in January: 3.15"

The month with the highest snowfall is March (3.54").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Wernersville, PA

Average snowfall days in January - Wernersville, PA
  • Average snowfall days in January: 8.3 days

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Wernersville, 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 4min

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).

Average sunshine days in January
Wernersville, PA

Average sunshine days in January - Wernersville, PA
  • Average sunshine days in January: 16.3 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is May (11.2 days).

Average UV index in January
Wernersville, PA

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

The months with the highest UV index are May, 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
Wernersville, PA

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

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in January
Wernersville, PA

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

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

Wernersville, Pennsylvania, USA

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