Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Temperature records mark January as the coldest month, with highs averaging 30.2°F (-1°C) and lows at 18°F (-7.8°C).Humidity
In January, the average relative humidity is 82%.Rainfall
January is the month with the least rainfall. Rain falls for 7 days and accumulates 1.77" (45mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In January, it is snowing for 12 days. Throughout January, 4.76" (121mm) of snow is accumulated. In Marcy, during the entire year, snow falls for 47.2 days and aggregates up to 22.68" (576mm) of snow.Daylight
In Marcy, Pennsylvania, the average length of the day in January is 9h and 34min.On the first day of the month, sunrise is at 7:30 am and sunset at 4:43 pm. On the last day of January, sunrise is at 7:16 am and sunset at 5:17 pm EST.
Sunshine
January has the least sunshine of the year, with an average of 3.4h of sunshine.UV index
In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 2 in January converts into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Direct Sun exposure should be minimized especially during midday when radiation is most intense. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold is January?
What is the average humidity in January?
What is the driest month?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Marcy have in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Marcy have in January?
How high is the UV index in January?
Average temperature in January
Marcy, PA
- Average high temperature in January: 30.2°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in January: 18°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in January
Marcy, 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
Marcy, PA
- Average wind speed in January: 8mph
The windiest months (with the highest average wind speed) are January, February, March and April (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in January
Marcy, PA
- Average humidity in January: 82%
The months with the highest relative humidity are February and December (84%).
The months with the lowest relative humidity are April, June and July (78%).
Average rainfall in January
Marcy, PA
- Average rainfall in January: 1.77"
The wettest month (with the highest rainfall) is July (3.03").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days in January
Marcy, PA
- Average rainfall days in January: 7 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is January (7 days).
Average snowfall in January
Marcy, PA
- Average snowfall in January: 4.76"
The month with the highest snowfall is February (6.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Marcy, PA
- Average snowfall days in January: 12 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Marcy, PA
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in January
Marcy, PA
- Average sunshine days in January: 14.9 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in January
Marcy, PA
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Marcy, PA
- Average cloud cover in January: 65
The months with the most cloud cover are January, February and December (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in January
Marcy, 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).
Marcy, Pennsylvania, USA
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