January weather forecastPottstown, PA
January
Weather in January
January, the same as December, is another cold winter month in Pottstown, Pennsylvania, with an average temperature fluctuating between 23.2°F (-4.9°C) and 35.4°F (1.9°C).Temperature
Pottstown's January weather reaches an average high of 35.4°F (1.9°C) and an average low of 23.2°F (-4.9°C), making it the coldest month.Humidity
In January, the average relative humidity is 77%.Rainfall
In Pottstown, in January, it is raining for 7.3 days, with typically 1.85" (47mm) of accumulated precipitation. In Pottstown, during the entire year, the rain falls for 146.5 days and collects up to 27.87" (708mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Pottstown, during January, snow falls for 5.8 days and regularly aggregates up to 2.64" (67mm) of snow. Throughout the year, there are 19.1 snowfall days, and 11.54" (293mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 41min.On the first day of the month, sunrise is at 7:25 am and sunset at 4:46 pm. On the last day of January, sunrise is at 7:12 am and sunset at 5:19 pm EST.
Sunshine
In Pottstown, the average sunshine in January is 4.8h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 2 in January translates into these instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Consider carefully! The reflective quality of snow 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
Average temperature in January
Pottstown, PA
- Average high temperature in January: 35.4°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in January: 23.2°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in January
Pottstown, PA
- Average pressure in January: 30.09"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
Pottstown, PA
- Average wind speed in January: 8mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in January
Pottstown, PA
- Average humidity in January: 77%
The months with the highest relative humidity are February and October (80%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in January
Pottstown, PA
- Average rainfall in January: 1.85"
The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in January
Pottstown, PA
- Average rainfall days in January: 7.3 days
The months with the highest number of rainy days are May and July (17 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in January
Pottstown, PA
- Average snowfall in January: 2.64"
The month with the highest snowfall is March (3.7").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Pottstown, PA
- Average snowfall days in January: 5.8 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Pottstown, 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 48min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in January
Pottstown, PA
- Average sunshine days in January: 18.7 days
The month with the most sunshine days is November (21 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in January
Pottstown, 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, March, November and December (UV index 2).
Average cloud cover in January
Pottstown, PA
- Average cloud cover in January: 46
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in January
Pottstown, 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).
