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
A shift in Riverwoods's weather is observed as September turns into October, with the average high temperature reducing from a pleasant 72.5°F (22.5°C) to a refreshing 59.5°F (15.3°C). October brings Riverwoods a consistent average low-temperature of 47.1°F (8.4°C).Humidity
October is the least humid month in Riverwoods, with an average relative humidity of 73%.Rainfall
In October, the rain falls for 12.2 days. Throughout October, 2.01" (51mm) of precipitation is accumulated. Throughout the year, there are 143.1 rainfall days, and 26.97" (685mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Riverwoods. October is the first month it typically snows in Riverwoods, Illinois. Throughout October, in the average 0.4 snowfall days, it receives 0.2" (5mm) of snow. In Riverwoods, during the entire year, snow falls for 48.6 days and aggregates up to 18.78" (477mm) of snow.Daylight
The average length of the day in October is 11h and 3min.On the first day of October, sunrise is at 6:49 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:46 pm CDT.
Sunshine
In Riverwoods, Illinois, the average sunshine in October is 5.6h.UV index
In October, the average daily maximum UV index in Riverwoods is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In October, the maximum UV index of 2 suggests this advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. To guard against the harmful effects of the Sun, minimize exposure during midday. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Riverwoods in October?
What is the least humid month in Riverwoods?
What is the average humidity in October in Riverwoods?
How much does it rain in Riverwoods in October?
When does it start snowing in Riverwoods?
How many hours of daylight does Riverwoods have in October?
What time are sunrise and sunset in October in Riverwoods?
How many hours of sunshine does Riverwoods have in October?
What is the UV index intensity in October in Riverwoods?
Average temperature in October
Riverwoods, IL
- Average high temperature in October: 59.5°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in October: 47.1°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in October
Riverwoods, IL
- Average pressure in October: 30"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in October
Riverwoods, IL
- Average wind speed in October: 9.7mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in October
Riverwoods, IL
- Average humidity in October: 73%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall in October
Riverwoods, IL
- Average rainfall in October: 2.01"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is November (1.5").
Average rainfall days in October
Riverwoods, IL
- Average rainfall days in October: 12.2 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in October
Riverwoods, IL
- Average snowfall in October: 0.2"
The months with the highest snowfall are January and February (5.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Riverwoods, IL
- Average snowfall days in October: 0.4 days
The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Riverwoods, IL
- Average daylight in October: 11h and 1min
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 October: 5h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in October
Riverwoods, IL
- Average sunshine days in October: 17.3 days
The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is February (10.4 days).
Average UV index in October
Riverwoods, IL
- Average UV index in October: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in October
Riverwoods, IL
- Average cloud cover in October: 42
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in October
Riverwoods, IL
- Average visibility in October: 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).
Riverwoods, Illinois, USA
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