January weather forecastSlate Valley, PA
January
Weather in January
January, like December, in Slate Valley, Pennsylvania, is another cold winter month, with temperature in the range of an average low of 20.3°F (-6.5°C) and an average high of 32.5°F (0.3°C).Temperature
Slate Valley reaches its lowest average temperatures in January, measuring 32.5°F (0.3°C) at the peak and 20.3°F (-6.5°C) at the lowest.Humidity
In January, the average relative humidity is 80%.Rainfall
In Slate Valley, in January, during 7.6 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. Throughout the year, there are 155.1 rainfall days, and 29.45" (748mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. The months with the most snowfall are January and March, with an average 4.41" (112mm) of accumulated snow.Daylight
The average length of the day in January is 9h and 39min.On the first day of January, sunrise is at 7:26 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:17 pm EST.
Sunshine
In January, the average sunshine is 4.5h.UV index
The average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 2 in January transforms into this advice:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. 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. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Slate Valley, PA
- Average high temperature in January: 32.5°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32.5°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
Slate Valley, 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
Slate Valley, PA
- Average wind speed in January: 8.1mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in January
Slate Valley, PA
- Average humidity in January: 80%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are April and July (77%).
Average rainfall in January
Slate Valley, PA
- Average rainfall in January: 2.17"
The wettest month (with the highest rainfall) is July (3.03").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in January
Slate Valley, PA
- Average rainfall days in January: 7.6 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in January
Slate Valley, PA
- Average snowfall in January: 4.41"
The months with the highest snowfall are January and March (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Slate Valley, PA
- Average snowfall days in January: 9.3 days
The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Slate Valley, PA
- Average daylight in January: 9h and 36min
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 30min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in January
Slate Valley, PA
- Average sunshine days in January: 17.2 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in January
Slate Valley, PA
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Slate Valley, PA
- Average cloud cover in January: 51
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in January
Slate Valley, 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).
