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
Big Rock's temperature records reveal January as the coldest month, marked by average highs of 27.9°F (-2.3°C) and lows of 15.8°F (-9°C).Humidity
January, July and August, with an average relative humidity of 84%, are the most humid months.Rainfall
In Big Rock, in January, it is raining for 6.5 days, with typically 1.73" (44mm) of accumulated precipitation. Throughout the year, in Big Rock, there are 156.4 rainfall days, and 30.98" (787mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 13.1 days and accumulates 4.65" (118mm) of snow.Daylight
The average length of the day in January is 9h and 34min.On the first day of the month, sunrise is at 7:21 am and sunset at 4:33 pm. On the last day of January, in Big Rock, sunrise is at 7:07 am and sunset at 5:07 pm CST.
Sunshine
January has the least sunshine of the year in Big Rock, Illinois, with an average of 3.7h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.Note: During January, 1 as the daily maximum UV index converts into the following advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Boost your sun resistance with garments that are densely woven yet spacious. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Frequently asked questions
What is the coldest month in Big Rock?
How cold is January in Big Rock?
What are the most humid months in Big Rock?
What is the average humidity in January in Big Rock?
How much does it rain in Big Rock in January?
What is the snowiest month in Big Rock?
How much does it snow in Big Rock in January?
How many hours of daylight does Big Rock have in January?
When is the sunrise / sunset in January in Big Rock?
What is the month with the least sunshine in Big Rock?
How many hours of sunshine does Big Rock have in January?
When is the lowest UV index in Big Rock?
How high is the UV index in January in Big Rock?
Average temperature in January
Big Rock, IL
- Average high temperature in January: 27.9°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in January: 15.8°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in January
Big Rock, IL
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Big Rock, IL
- Average wind speed in January: 9.8mph
The windiest months (with the highest average wind speed) are January, February and April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in January
Big Rock, IL
- Average humidity in January: 84%
The months with the highest relative humidity are January, July and August (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in January
Big Rock, IL
- Average rainfall in January: 1.73"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is December (1.57").
Average rainfall days in January
Big Rock, IL
- Average rainfall days in January: 6.5 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is February (6 days).
Average snowfall in January
Big Rock, IL
- Average snowfall in January: 4.65"
The month with the highest snowfall is January (4.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Big Rock, IL
- Average snowfall days in January: 13.1 days
The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Big Rock, IL
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January: 3h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
Big Rock, IL
- Average sunshine days in January: 14.3 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is April (10.3 days).
Average UV index in January
Big Rock, IL
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Big Rock, IL
- Average cloud cover in January: 61
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility in January
Big Rock, IL
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Big Rock, Illinois, USA
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