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
Grand Valley reaches its lowest average temperatures in January, measuring 29.5°F (-1.4°C) at the peak and 18°F (-7.8°C) at the lowest.Humidity
In January, the average relative humidity is 89%.Rainfall
In Grand Valley, in January, during 8.3 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. Throughout the year, there are 160.2 rainfall days, and 23.43" (595mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. January is the month with the most snowfall. Snow falls for 21.8 days and accumulates 7.28" (185mm) of snow.Daylight
In January, the average length of the day is 9h and 34min.On the first day of January, sunrise is at 7:45 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:31 pm EST.
Sunshine
With an average of 2.2h of sunshine, January has the least sunshine of the year.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 1 in January, converts into the following recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold is it in January?
What is the average humidity in January?
How much does it rain in January?
What is the snowiest month?
How much does it snow in January?
How many hours of daylight does Grand Valley have in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
What are the months with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Grand Valley, PA
- Average high temperature in January: 29.5°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in January: 18°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in January
Grand Valley, PA
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Grand Valley, PA
- Average wind speed in January: 8.8mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is July (5.4mph).
Average humidity in January
Grand Valley, PA
- Average humidity in January: 89%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (79%).
Average rainfall in January
Grand Valley, PA
- Average rainfall in January: 2.05"
The wettest month (with the highest rainfall) is April (2.32").
The driest month (with the least rainfall) is November (1.57").
Average rainfall days in January
Grand Valley, PA
- Average rainfall days in January: 8.3 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (7.5 days).
Average snowfall in January
Grand Valley, PA
- Average snowfall in January: 7.28"
The month with the highest snowfall is January (7.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Grand Valley, PA
- Average snowfall days in January: 21.8 days
The month with the highest number of snowfall days is January (21.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Grand Valley, PA
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 2h and 1min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 12min).
Average sunshine days in January
Grand Valley, PA
- Average sunshine days in January: 5.3 days
The month with the most sunshine days is October (13.3 days).
The month with the least sunshine days is January (5.3 days).
Average UV index in January
Grand Valley, PA
- Average UV index in January: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in January
Grand Valley, PA
- Average cloud cover in January: 78
The month with the most cloud cover is January (Cloud cover 78).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in January
Grand Valley, PA
- Average visibility in January: 4mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).
Grand Valley, Pennsylvania, USA
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