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, with its high-temperature average of 33.6°F (0.9°C) and a low-temperature average of 21°F (-6.1°C), is the coldest month.Humidity
In January, the average relative humidity in Philadelphia is 78%.Rainfall
The month with the least rainfall in Philadelphia is January, when the rain falls for 5.4 days and typically collects 1.3" (33mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. The month with the most snowfall is January, when snow falls for 7.3 days and typically aggregates up to 3.7" (94mm) of snow.Daylight
In January, the average length of the day is 9h and 44min.On the first day of the month, sunrise is at 7:28 am and sunset at 4:52 pm. On the last day of January, in Philadelphia, sunrise is at 7:16 am and sunset at 5:24 pm CST.
Sunshine
The month with the least sunshine in Philadelphia is January, with an average of 4.5h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The daily maximum UV index of 2 in January interprets into the following advice:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. It's recommended to limit sun exposure when its radiation is at its peak during midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. 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
What month is the coldest in Philadelphia?
How cold is January in Philadelphia?
What is the average humidity in January in Philadelphia?
What is the driest month in Philadelphia?
How much does it rain in Philadelphia in January?
What is the snowiest month in Philadelphia?
How much does it snow in Philadelphia in January?
How many hours of daylight does Philadelphia have in January?
What time are sunrise and sunset in January in Philadelphia?
What is the month with the least sunshine in Philadelphia?
How many hours of sunshine does Philadelphia have in January?
When is the lowest UV index in Philadelphia?
What is the UV index reading in January in Philadelphia?
Average temperature in January
Philadelphia, MO
- Average high temperature in January: 33.6°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 (33.6°F).
- Average low temperature in January: 21°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in January
Philadelphia, MO
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Philadelphia, MO
- Average wind speed in January: 10.1mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity in January
Philadelphia, MO
- Average humidity in January: 78%
The months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in January
Philadelphia, MO
- Average rainfall in January: 1.3"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is January (1.3").
Average rainfall days in January
Philadelphia, MO
- Average rainfall days in January: 5.4 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in January
Philadelphia, MO
- Average snowfall in January: 3.7"
The month with the highest snowfall is January (3.7").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Philadelphia, MO
- Average snowfall days in January: 7.3 days
The month with the highest number of snowfall days is January (7.3 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, MO
- 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in January
Philadelphia, MO
- Average sunshine days in January: 19.4 days
The months with the most sunshine days are January and December (19.4 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in January
Philadelphia, MO
- Average UV index in January: 2
The months with the highest UV index are 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
Philadelphia, MO
- Average cloud cover in January: 51
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in January
Philadelphia, MO
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Philadelphia, Missouri, USA
Weather forecast for your location
2. Allow the app to use your location