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 stands out as Castle Junction's coldest month, with an average high-temperature of 28.2°F (-2.1°C) and a low-temperature of 16.2°F (-8.8°C).Humidity
The months with the highest humidity are January and July, with an average relative humidity of 83%.Rainfall
In Castle Junction, during January, the rain falls for 4.2 days and regularly aggregates up to 0.79" (20mm) of precipitation. In Castle Junction, during the entire year, the rain falls for 128 days and collects up to 19.29" (490mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Castle Junction, during January, snow falls for 10.3 days and regularly aggregates up to 2.28" (58mm) of snow. In Castle Junction, during the entire year, snow falls for 35.4 days and aggregates up to 8.35" (212mm) of snow.Daylight
In January, the average length of the day is 9h and 35min.On the first day of the month, sunrise is at 7:28 am and sunset at 4:43 pm. On the last day of January, sunrise is at 7:14 am and sunset at 5:16 pm CST.
Sunshine
January has the least sunshine of the year, with an average of 4h of sunshine.UV index
With an average maximum UV index of 1, January is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The average daily UV index of 1 in January transforms into the following instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
How cold is January?
What are the most humid months?
What is the average humidity in January?
How many days does it rain in January in Castle Junction?
How much does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
What is the month with the lowest UV index?
How high is the UV index in January?
Average temperature in January
Castle Junction, IL
- Average high temperature in January: 28.2°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in January: 16.2°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in January
Castle Junction, IL
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in January
Castle Junction, IL
- Average wind speed in January: 10.4mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in January
Castle Junction, IL
- Average humidity in January: 83%
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in January
Castle Junction, IL
- Average rainfall in January: 0.79"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days in January
Castle Junction, IL
- Average rainfall days in January: 4.2 days
The month with the highest number of rainy days is June (17 days).
The month with the least rainy days is January (4.2 days).
Average snowfall in January
Castle Junction, IL
- Average snowfall in January: 2.28"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Castle Junction, IL
- Average snowfall days in January: 10.3 days
The month with the highest number of snowfall days is January (10.3 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
Castle Junction, IL
- 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 12min).
- Average sunshine in January: 4h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in January
Castle Junction, IL
- Average sunshine days in January: 17.8 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in January
Castle Junction, IL
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in January
Castle Junction, IL
- Average cloud cover in January: 57
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in January
Castle Junction, IL
- 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).
Castle Junction, Illinois, USA
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