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 comes with a drop in the average high-temperature, falling from September's moderately hot 76.5°F (24.7°C) to an enjoyable 63.1°F (17.3°C). An average low-temperature of 46.9°F (8.3°C) is observed during October nights.Humidity
With an average relative humidity of 71%, October is the least humid month.Rainfall
In October, the rain falls for 9.8 days. Throughout October, 1.61" (41mm) of precipitation is accumulated. Throughout the year, there are 131.4 rainfall days, and 20.08" (510mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Green Valley, the average length of the day in October is 11h and 7min.On the first day of October, sunrise is at 6:55 am and sunset at 6:40 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:56 pm CDT.
Sunshine
The average sunshine in October is 5.8h.UV index
The average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 3 in October interprets into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in October?
What is the least humid month?
What is the average humidity in October?
How many days does it rain in October in Green Valley?
When it does not snow?
Does it snow in October?
What is the average length of the day in October?
When are sunrise and sunset in October?
How many hours of sunshine does Green Valley have in October?
How high is the UV index in October in Green Valley?
Average temperature in October
Green Valley, IL
- Average high temperature in October: 63.1°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in October: 46.9°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in October
Green Valley, IL
- Average pressure in October: 30.02"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
Green Valley, IL
- Average wind speed in October: 9.3mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in October
Green Valley, IL
- Average humidity in October: 71%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall in October
Green Valley, IL
- Average rainfall in October: 1.61"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in October
Green Valley, IL
- Average rainfall days in October: 9.8 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in October
Green Valley, IL
- Average snowfall in October: 0"
The month with the highest snowfall is January (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Green Valley, IL
- Average snowfall days in October: 0.2 days
The month with the highest number of snowfall days is January (8.4 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
Green Valley, IL
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in October: 5h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in October
Green Valley, IL
- Average sunshine days in October: 19.4 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in October
Green 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, February, November and December (UV index 2).
Average cloud cover in October
Green Valley, IL
- Average cloud cover in October: 37
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in October
Green Valley, IL
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Green Valley, Illinois, USA
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