Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
During the transition into October, Peru observes a decrease in the average high-temperature, falling from a moderately hot 74.5°F (23.6°C) in September to a comfortable 61.7°F (16.5°C). Peru experiences an average temperature drop to a frosty 45.7°F (7.6°C) during October nights.Humidity
With an average relative humidity of 72%, October is the least humid month in Peru, Illinois.Rainfall
In Peru, during October, the rain falls for 12.5 days and regularly aggregates up to 2.83" (72mm) of precipitation. In Peru, during the entire year, the rain falls for 151.4 days and collects up to 30.67" (779mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. October is the first month it typically snows in Peru. Throughout October, in the average 0.4 snowfall days, it receives 0.43" (11mm) of snow. In Peru, Illinois, during the entire year, snow falls for 40.5 days and aggregates up to 15.16" (385mm) of snow.Daylight
In Peru, the average length of the day in October is 11h and 5min.On the first day of October in Peru, sunrise is at 6:54 am and sunset at 6:37 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:52 pm CDT.
Sunshine
The average sunshine in October is 5.7h.UV index
In Peru, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In October, the maximum UV index of 3 suggests this advice:
Guard yourself - An obligation to protect skin and eyes from harm exists. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
What is the average October temperature in Peru?
What is the least humid month in Peru?
What is the average humidity in October in Peru?
How much does it rain in Peru in October?
When does it start to snow in Peru?
How many hours of daylight does Peru have in October?
When is the sunrise / sunset in October in Peru?
How many hours of sunshine does Peru have in October?
What is the UV index intensity in October in Peru?
Average temperature in October
Peru, IL
- Average high temperature in October: 61.7°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 October: 45.7°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 October
Peru, IL
- Average pressure in October: 30.01"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 October
Peru, IL
- Average wind speed in October: 9.2mph
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 October
Peru, IL
- Average humidity in October: 72%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in October
Peru, IL
- Average rainfall in October: 2.83"
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 October
Peru, IL
- Average rainfall days in October: 12.5 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 October
Peru, IL
- Average snowfall in October: 0.43"
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 October
Peru, IL
- Average snowfall days in October: 0.4 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 October /
Average sunshine in October
Peru, IL
- Average daylight in October: 11h and 1min
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 October: 5h and 4min
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 October
Peru, IL
- Average sunshine days in October: 16.1 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 October
Peru, IL
- Average UV index in October: 3
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 October
Peru, IL
- Average cloud cover in October: 40
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 October
Peru, IL
- Average visibility in October: 6mi
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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