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
The beginning of October marks a decrease in the average high-temperature, transitioning from a warm 80.4°F (26.9°C) in September to a comfortable 67.5°F (19.7°C). The average temperature in Grand Tower drops to a chilly 49.3°F (9.6°C) during the night in the month of October.Humidity
October is the least humid month, with an average relative humidity of 71%.Rainfall
In October, the rain falls for 10.8 days. Throughout October, 2.76" (70mm) of precipitation is accumulated. In Grand Tower, Illinois, during the entire year, the rain falls for 158.6 days and collects up to 34.69" (881mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. October is the first month it typically snows in Grand Tower. Throughout October, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow. In Grand Tower, during the entire year, snow falls for 15.9 days and aggregates up to 5.71" (145mm) of snow.Daylight
In October, the average length of the day is 11h and 13min.On the first day of October, sunrise is at 6:54 am and sunset at 6:40 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 6:00 pm CDT.
Sunshine
In October, the average sunshine in Grand Tower is 6.5h.UV index
In Grand Tower, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In October, the average maximum UV index of 3 translates into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
What are the temperatures in Grand Tower in October?
What is the least humid month in Grand Tower?
What is the average humidity in October in Grand Tower?
How much does it rain in Grand Tower in October?
When does it start to snow in Grand Tower?
What is the average length of the day in October in Grand Tower?
When is the sunrise / sunset in October in Grand Tower?
How many hours of sunshine does Grand Tower have in October?
How high is the UV index in October in Grand Tower?
Average temperature in October
Grand Tower, IL
- Average high temperature in October: 67.5°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in October: 49.3°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in October
Grand Tower, IL
- Average pressure in October: 30.04"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in October
Grand Tower, IL
- Average wind speed in October: 7.8mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in October
Grand Tower, IL
- Average humidity in October: 71%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in October
Grand Tower, IL
- Average rainfall in October: 2.76"
The wettest month (with the highest rainfall) is April (4.49").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in October
Grand Tower, IL
- Average rainfall days in October: 10.8 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in October
Grand Tower, IL
- Average snowfall in October: 0.08"
The month with the highest snowfall is February (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Grand Tower, IL
- Average snowfall days in October: 0.1 days
The months with the highest number of snowfall days are January and February (4.8 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
Grand Tower, IL
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in October: 6h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in October
Grand Tower, IL
- Average sunshine days in October: 18.5 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in October
Grand Tower, IL
- Average UV index in October: 3
The months with the highest UV index are May, 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
Grand Tower, IL
- Average cloud cover in October: 32
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 27).
Average visibility in October
Grand Tower, 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).
Grand Tower, Illinois, USA
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