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 when Arlington Heights sees the lowest average temperatures, with a high of 32.5°F (0.3°C) and a low of 19.9°F (-6.7°C).Humidity
The average relative humidity in January is 80%.Rainfall
In January, the rain falls for 8.8 days. Throughout January, 2.4" (61mm) of precipitation is accumulated. In Arlington Heights, during the entire year, the rain falls for 161.8 days and collects up to 32.24" (819mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In January, it is snowing for 10.6 days. Throughout January, 4.41" (112mm) of snow is accumulated. Throughout the year, there are 38.6 snowfall days, and 19.76" (502mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 38min.On the first day of January, sunrise is at 7:25 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:16 pm EST.
Sunshine
In January, the average sunshine is 4.5h.UV index
In Arlington Heights, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: An average maximum UV index of 2 in January leads to these recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Boost your sun resistance with garments that are densely woven yet spacious. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is January?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
How many hours of daylight does Arlington Heights have in January?
What time are sunrise and sunset in January?
How long on average sun shines in January?
How high is the UV index in January?
Average temperature in January
Arlington Heights, PA
- Average high temperature in January: 32.5°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in January: 19.9°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in January
Arlington Heights, PA
- Average pressure in January: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in January
Arlington Heights, PA
- Average wind speed in January: 8mph
The windiest months (with the highest average wind speed) are January and March (8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in January
Arlington Heights, PA
- Average humidity in January: 80%
The months with the highest relative humidity are February, October and December (82%).
The months with the lowest relative humidity are April and July (77%).
Average rainfall in January
Arlington Heights, PA
- Average rainfall in January: 2.4"
The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in January
Arlington Heights, PA
- Average rainfall days in January: 8.8 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in January
Arlington Heights, PA
- Average snowfall in January: 4.41"
The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Arlington Heights, PA
- Average snowfall days in January: 10.6 days
The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Arlington Heights, PA
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 4h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in January
Arlington Heights, PA
- Average sunshine days in January: 15.3 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is April (11.1 days).
Average UV index in January
Arlington Heights, PA
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Arlington Heights, PA
- Average cloud cover in January: 52
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in January
Arlington Heights, PA
- Average visibility in January: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Arlington Heights, Pennsylvania, USA
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