January weather forecastCoraopolis, PA
January
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 9h and 42min
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 54min
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: 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: 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: 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: 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).





