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
January is the coldest month of the year, registering average temperatures as high as 45°F (7.2°C) and as low as 30°F (-1.1°C).Humidity
In January, the average relative humidity is 76%.Rainfall
In January, the rain falls for 13.8 days. Throughout January, 2.48" (63mm) of precipitation is accumulated. In Philadelphia, during the entire year, the rain falls for 171.1 days and collects up to 32.24" (819mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In January, it is snowing for 4.7 days. Throughout January, 0.75" (19mm) of snow is accumulated. Throughout the year, there are 15 snowfall days, and 2.52" (64mm) of snow is accumulated.Daylight
The average length of the day in January is 10h and 4min.On the first day of the month, sunrise is at 7:47 am and sunset at 5:34 pm. On the last day of January, sunrise is at 7:38 am and sunset at 6:03 pm EST.
Sunshine
January has the least sunshine of the year, with an average of 5.1h of sunshine.UV index
The months with the lowest UV index are January, February 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 the ordinary person.Note: The average daily UV index of 2 in January transforms into the following instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
What is the temperature in January?
What is the average humidity in January?
How many days does it rain in January?
How many days does it snow in January?
How many hours of daylight does Philadelphia have in January?
When are sunrise and sunset in January in Philadelphia?
What is the month with the least sunshine?
How many hours of sunshine does Philadelphia have in January?
What are the months with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Philadelphia, TN
- Average high temperature in January: 45°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (45°F).
- Average low temperature in January: 30°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 (30°F).
Average pressure in January
Philadelphia, TN
- Average pressure in January: 30.16"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in January
Philadelphia, TN
- Average wind speed in January: 5.7mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in January
Philadelphia, TN
- Average humidity in January: 76%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (74%).
Average rainfall in January
Philadelphia, TN
- Average rainfall in January: 2.48"
The wettest month (with the highest rainfall) is July (3.7").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in January
Philadelphia, TN
- Average rainfall days in January: 13.8 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (9.6 days).
Average snowfall in January
Philadelphia, TN
- Average snowfall in January: 0.75"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Philadelphia, TN
- Average snowfall days in January: 4.7 days
The month with the highest number of snowfall days is January (4.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Philadelphia, TN
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in January
Philadelphia, TN
- Average sunshine days in January: 14.2 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (10.5 days).
Average UV index in January
Philadelphia, TN
- 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 and December (UV index 2).
Average cloud cover in January
Philadelphia, TN
- Average cloud cover in January: 47
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in January
Philadelphia, TN
- Average visibility in January: 5mi
The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and March (5mi).
Philadelphia, Tennessee, USA
Weather forecast for your location
2. Allow the app to use your location