October weather forecastGranite City, IL
October
Weather in October
October, like September, in Granite City, Illinois, is another comfortable autumn month, with temperature in the range of an average high of 66.2°F (19°C) and an average low of 49.3°F (9.6°C).Temperature
October weather is marked by a drop in the average high-temperature, falling from a warm 79.3°F (26.3°C) in September to an enjoyable 66.2°F (19°C). Granite City records a steady low-temperature average of 49.3°F (9.6°C) during October.Humidity
October is the least humid month, with an average relative humidity of 71%.Rainfall
In Granite City, during October, the rain falls for 11.2 days and regularly aggregates up to 2.83" (72mm) of precipitation. In Granite City, during the entire year, the rain falls for 159.5 days and collects up to 36.06" (916mm) of precipitation.Snowfall
In Granite City, snow does not fall in April through October.Daylight
In Granite City, the average length of the day in October is 11h and 10min.On the first day of October, sunrise is at 6:57 am and sunset at 6:42 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 6:01 pm CDT.
Sunshine
The average sunshine in October is 6.2h.UV index
In October, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 3 during October leads to these advisories:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 12min
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 12min
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).
