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 month that records the lowest temperatures, with averages ranging from a high of 33.3°F (0.7°C) to a low of 20.3°F (-6.5°C).Humidity
January and February, with an average relative humidity of 85%, are the most humid months.Rainfall
In Thornwood, in January, during 9.8 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, in Thornwood, there are 185.4 rainfall days, and 34.02" (864mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Thornwood. January is the month with the most snowfall in Thornwood. Snow falls for 17.3 days and accumulates 7.09" (180mm) of snow.Daylight
In January, the average length of the day is 9h and 43min.On the first day of the month, sunrise is at 7:40 am and sunset at 5:03 pm. On the last day of January, sunrise is at 7:28 am and sunset at 5:35 pm EST.
Sunshine
With an average of 3h of sunshine, January has the least sunshine of the year in Thornwood.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Thornwood. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In January, the average maximum UV index of 2 translates into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be attentive! The reflective property of snow can nearly double 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 Thornwood?
How cold is January in Thornwood?
What are the most humid months in Thornwood?
What is the average humidity in January in Thornwood?
How much does it rain in Thornwood in January?
What is the snowiest month in Thornwood?
How many days does it snow in January in Thornwood?
What is the average length of the day in January in Thornwood?
What time are sunrise and sunset in January in Thornwood?
What is the month with the least sunshine in Thornwood?
How many hours of sunshine does Thornwood have in January?
When is the lowest UV index in Thornwood?
How high is the UV index in January in Thornwood?
Average temperature in January
Thornwood, PA
- Average high temperature in January: 33.3°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in January: 20.3°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in January
Thornwood, PA
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in January
Thornwood, PA
- Average wind speed in January: 8.5mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in January
Thornwood, PA
- Average humidity in January: 85%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in January
Thornwood, PA
- Average rainfall in January: 2.68"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is November (2.01").
Average rainfall days in January
Thornwood, PA
- Average rainfall days in January: 9.8 days
The month with the highest number of rainy days is May (22 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in January
Thornwood, PA
- Average snowfall in January: 7.09"
The month with the highest snowfall is January (7.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Thornwood, PA
- Average snowfall days in January: 17.3 days
The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Thornwood, 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: 3h
The month with the most sunshine is August (Average sunshine: 10h).
The month with the least sunshine is January (Average sunshine: 3h).
Average sunshine days in January
Thornwood, PA
- Average sunshine days in January: 6.5 days
The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is January (6.5 days).
Average UV index in January
Thornwood, PA
- Average UV index in January: 2
The month with the highest UV index is July (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
Thornwood, PA
- Average cloud cover in January: 69
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in January
Thornwood, PA
- Average visibility in January: 4mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Thornwood, Pennsylvania, USA
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