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 suggests a modest reduction in the average high-temperature, shifting from a moderately hot 74.7°F (23.7°C) in September to a refreshing 61.7°F (16.5°C). Throughout October, Spring Valley witnesses a consistent average low-temperature of 45.7°F (7.6°C).Humidity
October is the least humid month, with an average relative humidity of 72%.Rainfall
In Spring Valley, during October, the rain falls for 13.2 days and regularly aggregates up to 2.87" (73mm) of precipitation. Throughout the year, there are 152.7 rainfall days, and 30.79" (782mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.43" (11mm) of snow. Throughout the year, there are 39.5 snowfall days, and 15.31" (389mm) of snow is accumulated.Daylight
The average length of the day in October is 11h and 5min.On the first day of the month, sunrise is at 6:54 am and sunset at 6:38 pm. On the last day of October, sunrise is at 7:27 am and sunset at 5:52 pm CDT.
Sunshine
The average sunshine in October in Spring Valley is 5.7h.UV index
The average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 3 during October translates into the following guidance:
Be vigilant - A duty to shield skin and eyes from injury exists. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October?
What is the least humid month?
What is the average humidity in October?
How much does it rain in October?
When does it start to snow?
What is the average length of the day in October?
What time are sunrise and sunset in October?
How many hours of sunshine does Spring Valley have in October?
What is the UV index intensity in October?
Average temperature in October
Spring Valley, IL
- Average high temperature in October: 61.7°F
The warmest month (with the highest average high temperature) is July (80.8°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
Spring Valley, 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
Spring Valley, IL
- Average wind speed in October: 9.2mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in October
Spring Valley, 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
Spring Valley, IL
- Average rainfall in October: 2.87"
The wettest month (with the highest rainfall) is May (4.69").
The driest months (with the least rainfall) are January and December (1.61").
Average rainfall days in October
Spring Valley, IL
- Average rainfall days in October: 13.2 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in October
Spring Valley, IL
- Average snowfall in October: 0.43"
The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Spring Valley, IL
- Average snowfall days in October: 0.5 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Spring Valley, 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 months with the most sunshine are June, July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in October
Spring Valley, IL
- Average sunshine days in October: 15.5 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is April (10.2 days).
Average UV index in October
Spring Valley, IL
- Average UV index in October: 3
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 October
Spring Valley, IL
- Average cloud cover in October: 39
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in October
Spring Valley, 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).
Spring Valley, Illinois, USA
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