January weather forecast
Coopersburg, PA

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Weather in January

January, the same as December, is another cold winter month in Coopersburg, Pennsylvania, with temperature in the range of an average low of 22.3°F (-5.4°C) and an average high of 35.1°F (1.7°C).

Temperature

Coopersburg's January weather, marked by an average high temperature of 35.1°F (1.7°C) and an average low temperature of 22.3°F (-5.4°C), is the coldest in the year.

Humidity

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

Rainfall

In Coopersburg, during January, the rain falls for 8.3 days and regularly aggregates up to 2.28" (58mm) of precipitation. In Coopersburg, Pennsylvania, during the entire year, the rain falls for 154.1 days and collects up to 31.73" (806mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Coopersburg, Pennsylvania, during January, snow falls for 8.2 days and regularly aggregates up to 3.62" (92mm) of snow. In Coopersburg, during the entire year, snow falls for 29.3 days and aggregates up to 16.57" (421mm) of snow.

Daylight

In January, the average length of the day is 9h and 40min.
On the first day of the month, sunrise is at 7:24 am and sunset at 4:45 pm. On the last day of January, sunrise is at 7:12 am and sunset at 5:17 pm EST.

Sunshine

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

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: During January, 2 as the daily maximum UV index converts into the following advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.

Frequently asked questions

What is the coldest time of year?

The coldest period tends to be January, when average temperatures fluctuate between a high of 35.1°F (1.7°C) and a low of 22.3°F (-5.4°C).

How cold is January?

Coopersburg in January has an average high-temperature of 35.1°F (1.7°C) and an average low-temperature of 22.3°F (-5.4°C).

What is the average humidity in January?

The average relative humidity in January is 77%.

How many days does it rain in January?

In January, the rain falls for 8.3 days. Throughout January, 2.28" (58mm) of precipitation is accumulated.

How many days does it snow in January in Coopersburg?

In Coopersburg, in January, during 8.2 snowfall days, 3.62" (92mm) of snow is typically accumulated.

How many hours of daylight does Coopersburg have in January?

The average day length in January in Coopersburg is 9h and 40min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:24 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:17 pm EST.

How many hours of sunshine does Coopersburg have in January?

The average sunshine duration in January is 4.7h.

What are the months 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 intensity in January?

In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
Coopersburg, PA

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

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in January: 22.3°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

Average pressure in January
Coopersburg, PA

Average pressure in January - Coopersburg, 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
Coopersburg, PA

Average wind speed in January - Coopersburg, PA
  • Average wind speed in January: 7.9mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in January
Coopersburg, PA

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

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (75%).

Average rainfall in January
Coopersburg, PA

Average rainfall in January - Coopersburg, PA
  • Average rainfall in January: 2.28"

The wettest months (with the highest rainfall) are May and July (3.07").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in January
Coopersburg, PA

Average rainfall days in January - Coopersburg, PA
  • Average rainfall days in January: 8.3 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in January
Coopersburg, PA

Average snowfall in January - Coopersburg, PA
  • Average snowfall in January: 3.62"

The month with the highest snowfall is March (4.72").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Coopersburg, PA

Average snowfall days in January - Coopersburg, PA
  • Average snowfall days in January: 8.2 days

The month with the highest number of snowfall days is February (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
Coopersburg, PA

Average daylight in January / Average sunshine in January - Coopersburg, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in January
Coopersburg, PA

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

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (11.8 days).

Average UV index in January
Coopersburg, PA

Average UV index in January - Coopersburg, 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
Coopersburg, PA

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

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in January
Coopersburg, PA

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

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

Coopersburg, Pennsylvania, USA

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