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 ushers in a slight temperature change, with average high-temperatures reducing from September's moderately hot 79.3°F (26.3°C) to a comfortable 66.2°F (19°C). Throughout the October nights, Granite City encounters a low-temperature of 49.3°F (9.6°C).Humidity
With an average relative humidity of 71%, October is the least humid month in Granite City.Rainfall
In October, the rain falls for 11.2 days. Throughout October, 2.83" (72mm) of precipitation is accumulated. In Granite City, during the entire year, the rain falls for 159.5 days and collects up to 36.06" (916mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in October is 11h and 10min.On the first day of the month, sunrise is at 6:57 am and sunset at 6:42 pm. On the last day of October, sunrise is at 7:27 am and sunset at 6:01 pm CDT.
Sunshine
In October, the average sunshine is 6.2h.UV index
The average daily maximum UV index in October in Granite City is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 3 during October leads to these advisories:
Ensure safety - Sun damage prevention is strongly urged. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
What are the temperatures in Granite City in October?
What is the least humid month in Granite City?
What is the average humidity in October in Granite City?
How much does it rain in Granite City in October?
When it does not snow in Granite City?
Does it snow in Granite City in October?
What is the average length of the day in October in Granite City?
When is the sunrise / sunset in October in Granite City?
How long on average sun shines in October in Granite City?
What is the UV index reading in October in Granite City?
Average temperature in October
Granite City, IL
- Average high temperature in October: 66.2°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in October: 49.3°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in October
Granite City, IL
- Average pressure in October: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in October
Granite City, IL
- Average wind speed in October: 7.9mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity in October
Granite City, IL
- Average humidity in October: 71%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in October
Granite City, IL
- Average rainfall in October: 2.83"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is February (1.93").
Average rainfall days in October
Granite City, IL
- Average rainfall days in October: 11.2 days
The months with the highest number of rainy days are May and July (17.8 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in October
Granite City, IL
- Average snowfall in October: 0"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in October
Granite City, IL
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is January (6.3 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
Granite City, IL
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in October: 6h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in October
Granite City, IL
- Average sunshine days in October: 17.6 days
The month with the most sunshine days is December (18 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in October
Granite City, 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
Granite City, IL
- Average cloud cover in October: 32
The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in October
Granite City, 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).
Granite City, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location
