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
October brings a decrease in the average high-temperature, shifting from a moderately hot 75.6°F (24.2°C) in September to a comfortable 61.5°F (16.4°C). Rio records a mean low-temperature of 45.7°F (7.6°C) in October.Humidity
The least humid month in Rio is October, with an average relative humidity of 72%.Rainfall
In Rio, Illinois, in October, it is raining for 8.8 days, with typically 0.98" (25mm) of accumulated precipitation. Throughout the year, there are 109.9 rainfall days, and 11.14" (283mm) of precipitation is accumulated.Snowfall
Months with snowfall in Rio are January through April, October through December. October is the first month it typically snows. Throughout October, in the average 0.3 snowfall days, it receives 0.28" (7mm) of snow. Throughout the year, in Rio, there are 28 snowfall days, and 4.53" (115mm) of snow is accumulated.Daylight
In Rio, the average length of the day in October is 11h and 5min.On the first day of the month, sunrise is at 6:59 am and sunset at 6:42 pm. On the last day of October, sunrise is at 7:32 am and sunset at 5:58 pm CDT.
Sunshine
The average sunshine in October is 5.6h.UV index
In Rio, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 3 in October translates into these instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October in Rio?
What is the least humid month in Rio?
What is the average humidity in October in Rio?
How much does it rain in Rio in October?
When does it start to snow in Rio?
How many hours of daylight does Rio have in October?
What time are sunrise and sunset in October in Rio?
How many hours of sunshine does Rio have in October?
What is the UV index reading in October in Rio?
Average temperature in October
Rio, IL
- Average high temperature in October: 61.5°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in October: 45.7°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in October
Rio, IL
- Average pressure in October: 30.01"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in October
Rio, IL
- Average wind speed in October: 9.5mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in October
Rio, IL
- Average humidity in October: 72%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in October
Rio, IL
- Average rainfall in October: 0.98"
The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are January and December (0.47").
Average rainfall days in October
Rio, IL
- Average rainfall days in October: 8.8 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in October
Rio, IL
- Average snowfall in October: 0.28"
The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Rio, IL
- Average snowfall days in October: 0.3 days
The month with the highest number of snowfall days is January (8.8 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
Rio, 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: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in October
Rio, IL
- Average sunshine days in October: 19.9 days
The month with the most sunshine days is December (21.6 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in October
Rio, IL
- Average UV index in October: 3
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in October
Rio, IL
- Average cloud cover in October: 38
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in October
Rio, IL
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Rio, Illinois, USA
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