January weather forecastSchaefferstown, PA
January
Weather in January
January, like December, in Schaefferstown, Pennsylvania, is a wintry winter month, with an average temperature varying between 21.7°F (-5.7°C) and 33.6°F (0.9°C).Temperature
Schaefferstown witnesses the coldest weather in January, with temperatures averaging a high of 33.6°F (0.9°C) and a low of 21.7°F (-5.7°C).Humidity
In January, the average relative humidity is 78%.Rainfall
In Schaefferstown, Pennsylvania, during January, the rain falls for 9.3 days and regularly aggregates up to 2.52" (64mm) of precipitation. In Schaefferstown, during the entire year, the rain falls for 168.8 days and collects up to 33.27" (845mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Schaefferstown, during January, snow falls for 9.2 days and regularly aggregates up to 3.98" (101mm) of snow. In Schaefferstown, during the entire year, snow falls for 29.6 days and aggregates up to 15.59" (396mm) of snow.Daylight
The average length of the day in January is 9h and 41min.On the first day of January, sunrise is at 7:27 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:21 pm EST.
Sunshine
In Schaefferstown, the average sunshine in January is 4.6h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 2 during January translates into these guidelines:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Take to heart! Snow reflection can almost magnify 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
Schaefferstown, PA
- Average high temperature in January: 33.6°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in January: 21.7°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in January
Schaefferstown, 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
Schaefferstown, PA
- Average wind speed in January: 8.5mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in January
Schaefferstown, PA
- Average humidity in January: 78%
The months with the highest relative humidity are February, May and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in January
Schaefferstown, PA
- Average rainfall in January: 2.52"
The wettest month (with the highest rainfall) is August (3.39").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days in January
Schaefferstown, PA
- Average rainfall days in January: 9.3 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in January
Schaefferstown, PA
- Average snowfall in January: 3.98"
The month with the highest snowfall is March (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Schaefferstown, PA
- Average snowfall days in January: 9.2 days
The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Schaefferstown, 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: 4h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in January
Schaefferstown, PA
- Average sunshine days in January: 15.4 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (10.2 days).
Average UV index in January
Schaefferstown, PA
- Average UV index in January: 2
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in January
Schaefferstown, PA
- Average cloud cover in January: 49
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in January
Schaefferstown, PA
- Average visibility in January: 6mi
The months with the highest visibility are January, March, April, June, July, November and December (6mi).
The months with the lowest visibility are February, May, August, September and October (5mi).
