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
The coldest temperatures occur during January, when averages reach a peak of 35.2°F (1.8°C) and a low of 22.8°F (-5.1°C).Humidity
In January, the average relative humidity is 77%.Rainfall
January is the month with the least rainfall. Rain falls for 5.7 days and accumulates 0.87" (22mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. In Sumneytown, in January, during 4.8 snowfall days, 1.06" (27mm) of snow is typically accumulated. In Sumneytown, Pennsylvania, during the entire year, snow falls for 17 days and aggregates up to 5.43" (138mm) of snow.Daylight
In January, the average length of the day is 9h and 41min.On the first day of January in Sumneytown, sunrise is at 7:24 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:18 pm EST.
Sunshine
In Sumneytown, the average sunshine in January is 4.7h.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 value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high UV index of 2 in January translates into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Consider this! The reflection from 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
What is the coldest month?
How cold is it in January?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
How much does it snow in January?
How many hours of daylight does Sumneytown have in January?
When are sunrise and sunset in January?
How many hours of sunshine does Sumneytown have in January?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Sumneytown, PA
- Average high temperature in January: 35.2°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in January: 22.8°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in January
Sumneytown, 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
Sumneytown, PA
- Average wind speed in January: 7.9mph
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
Sumneytown, PA
- Average humidity in January: 77%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in January
Sumneytown, PA
- Average rainfall in January: 0.87"
The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in January
Sumneytown, PA
- Average rainfall days in January: 5.7 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is January (5.7 days).
Average snowfall in January
Sumneytown, PA
- Average snowfall in January: 1.06"
The month with the highest snowfall is March (1.46").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in January
Sumneytown, PA
- Average snowfall days in January: 4.8 days
The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Sumneytown, PA
- Average daylight in January: 9h and 4min
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 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in January
Sumneytown, PA
- Average sunshine days in January: 20.7 days
The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in January
Sumneytown, 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
Sumneytown, PA
- Average cloud cover in January: 47
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in January
Sumneytown, 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).
Sumneytown, Pennsylvania, USA
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