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 an average high of 28.9°F (-1.7°C) and a low of 16.9°F (-8.4°C), signifies the coldest month of the year.Humidity
In Peru, the average relative humidity in January is 83%.Rainfall
In Peru, Illinois, in January, during 5.5 rainfall days, 1.65" (42mm) of precipitation is typically accumulated. In Peru, Illinois, during the entire year, the rain falls for 151.4 days and collects up to 30.67" (779mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 12.1 days and typically aggregates up to 4.37" (111mm) of snow.Daylight
In Peru, the average length of the day in January is 9h and 36min.On the first day of January in Peru, sunrise is at 7:22 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:10 pm CST.
Sunshine
With an average of 3.9h of sunshine, January has the least sunshine of the year in Peru.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Peru. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 1 during January translates into these guidelines:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
What are the coldest months in Peru?
How cold is January in Peru?
What is the average humidity in January in Peru?
How much does it rain in Peru in January?
What is the snowiest month in Peru?
How many days does it snow in January in Peru?
What is the average length of the day in January in Peru?
When are sunrise and sunset in January in Peru?
What is the month with the least sunshine in Peru?
How many hours of sunshine does Peru have in January?
What are the months with the lowest UV index in Peru?
How high is the UV index in January in Peru?
Average temperature in January
Peru, IL
- Average high temperature in January: 28.9°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 (28.9°F).
- Average low temperature in January: 16.9°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in January
Peru, IL
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Peru, IL
- Average wind speed in January: 10.3mph
The windiest months (with the highest average wind speed) are January and April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in January
Peru, IL
- Average humidity in January: 83%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Peru, IL
- Average rainfall in January: 1.65"
The wettest month (with the highest rainfall) is May (4.65").
The driest month (with the least rainfall) is February (1.57").
Average rainfall days in January
Peru, IL
- Average rainfall days in January: 5.5 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in January
Peru, IL
- Average snowfall in January: 4.37"
The month with the highest snowfall is January (4.37").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Peru, IL
- Average snowfall days in January: 12.1 days
The month with the highest number of snowfall days is January (12.1 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
Peru, 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 18min).
- Average sunshine in January: 3h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in January
Peru, IL
- Average sunshine days in January: 13.8 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in January
Peru, IL
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Peru, IL
- Average cloud cover in January: 59
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in January
Peru, IL
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Peru, Illinois, USA
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