January weather forecastMendenhall, PA
January
Weather in January
January, the same as December, is an icy winter month in Mendenhall, Pennsylvania, with temperature in the range of an average low of 24.8°F (-4°C) and an average high of 36.9°F (2.7°C).Temperature
The coldest time of the year is January, with temperatures averaging a high of 36.9°F (2.7°C) and a low of 24.8°F (-4°C).Humidity
The average relative humidity in January is 76%.Rainfall
In Mendenhall, in January, during 6.6 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. In Mendenhall, during the entire year, the rain falls for 135 days and collects up to 17.76" (451mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In Mendenhall, during January, snow falls for 5.2 days and regularly aggregates up to 1.38" (35mm) of snow. In Mendenhall, during the entire year, snow falls for 16.6 days and aggregates up to 5.47" (139mm) of snow.Daylight
In Mendenhall, the average length of the day in January is 9h and 44min.On the first day of January, sunrise is at 7:23 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:20 pm EST.
Sunshine
In Mendenhall, the average sunshine in January is 5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Mendenhall, PA
- Average high temperature in January: 36.9°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in January: 24.8°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in January
Mendenhall, PA
- Average pressure in January: 30.09"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Mendenhall, PA
- Average wind speed in January: 8.6mph
The windiest months (with the highest average wind speed) are January, February and March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in January
Mendenhall, PA
- Average humidity in January: 76%
The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is April (74%).
Average rainfall in January
Mendenhall, PA
- Average rainfall in January: 1.1"
The wettest month (with the highest rainfall) is August (2.36").
The driest month (with the least rainfall) is November (1.06").
Average rainfall days in January
Mendenhall, PA
- Average rainfall days in January: 6.6 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in January
Mendenhall, PA
- Average snowfall in January: 1.38"
The month with the highest snowfall is March (1.5").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Mendenhall, PA
- Average snowfall days in January: 5.2 days
The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Mendenhall, 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 24min).
- Average sunshine in January: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in January
Mendenhall, PA
- Average sunshine days in January: 19.8 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in January
Mendenhall, PA
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Mendenhall, PA
- Average cloud cover in January: 45
The months with the most cloud cover are February, March and May (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in January
Mendenhall, PA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).





