January weather forecast
Coraopolis, PA

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Weather in January

January, the same as December, is another cold winter month in Coraopolis, Pennsylvania, with an average temperature varying between 20.3°F (-6.5°C) and 32.9°F (0.5°C).

Temperature

In Coraopolis, the lowest average temperatures are observed in January, with a high of 32.9°F (0.5°C) and a low of 20.3°F (-6.5°C).

Humidity

The average relative humidity in January is 84%.

Rainfall

The month with the least rainfall is January, when the rain falls for 8.1 days and typically collects 1.22" (31mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Coraopolis, during January, snow falls for 14.3 days and regularly aggregates up to 2.4" (61mm) of snow. In Coraopolis, during the entire year, snow falls for 49.9 days and aggregates up to 10.12" (257mm) of snow.

Daylight

In January, the average length of the day is 9h and 40min.
On the first day of January, sunrise is at 7:43 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:36 pm EST.

Sunshine

With an average of 2.9h of sunshine, January has the least sunshine of the year.

UV index

In Coraopolis, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 2 in January leads to these guidelines:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

With average high temperatures of 32.9°F (0.5°C) and lows of 20.3°F (-6.5°C), January is the coldest month.

How cold is January?

The high-temperature, in January, in Coraopolis, is 32.9°F (0.5°C), while the low-temperature averages to 20.3°F (-6.5°C).

What is the average humidity in January?

The average relative humidity in January is 84%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 8.1 days and accumulates 1.22" (31mm) of precipitation.

How much does it rain in January?

In Coraopolis, Pennsylvania, in January, during 8.1 rainfall days, 1.22" (31mm) of precipitation is typically accumulated.

How much does it snow in January?

In January, it is snowing for 14.3 days. Throughout January, 2.4" (61mm) of snow is accumulated.

What is the average length of the day in January?

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

What time are sunrise and sunset in January?

On the first day of January, sunrise is at 7:43 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:36 pm EST.

What is the month with the least sunshine?

With an average of 2.9h of sunshine, January has the least sunshine of the year.

How many hours of sunshine does Coraopolis have in January?

In January, the average sunshine duration in Coraopolis is 2.9h.

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 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
Coraopolis, PA

Average temperature in January - Coraopolis, PA
  • Average high temperature in January: 32.9°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (32.9°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
Coraopolis, PA

Average pressure in January - Coraopolis, PA
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in January
Coraopolis, PA

Average wind speed in January - Coraopolis, PA
  • Average wind speed in January: 8.1mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in January
Coraopolis, PA

Average humidity in January - Coraopolis, PA
  • Average humidity in January: 84%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (75%).

Average rainfall in January
Coraopolis, PA

Average rainfall in January - Coraopolis, PA
  • Average rainfall in January: 1.22"

The wettest month (with the highest rainfall) is July (2.36").
The driest month (with the least rainfall) is January (1.22").

Average rainfall days in January
Coraopolis, PA

Average rainfall days in January - Coraopolis, PA
  • Average rainfall days in January: 8.1 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (8.1 days).

Average snowfall in January
Coraopolis, PA

Average snowfall in January - Coraopolis, PA
  • Average snowfall in January: 2.4"

The month with the highest snowfall is February (2.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Coraopolis, PA

Average snowfall days in January - Coraopolis, PA
  • Average snowfall days in January: 14.3 days

The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Coraopolis, 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: 2h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

Average sunshine days in January
Coraopolis, PA

Average sunshine days in January - Coraopolis, PA
  • Average sunshine days in January: 11.8 days

The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is February (10.7 days).

Average UV index in January
Coraopolis, PA

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

The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in January
Coraopolis, PA

Average cloud cover in January - Coraopolis, PA
  • Average cloud cover in January: 70

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in January
Coraopolis, PA

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

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

Coraopolis, Pennsylvania, USA

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