October weather forecastMonticello, IL
October
Weather in October
October, the same as September, is another refreshing autumn month in Monticello, Illinois, with temperature in the range of an average low of 48°F (8.9°C) and an average high of 63.5°F (17.5°C).Temperature
Monticello's average high-temperature decreases in October, falling from a warm 76.6°F (24.8°C) in September to an enjoyable 63.5°F (17.5°C). In October, Monticello experiences a temperature dip to an average of 48°F (8.9°C) at night.Humidity
With an average relative humidity of 70%, October is the least humid month.Rainfall
In Monticello, in October, it is raining for 9.6 days, with typically 1.18" (30mm) of accumulated precipitation. Throughout the year, there are 127.9 rainfall days, and 16.61" (422mm) of precipitation is accumulated.Snowfall
In Monticello, snow does not fall in May through October.Daylight
In October, the average length of the day is 11h and 8min.On the first day of October, sunrise is at 6:51 am and sunset at 6:36 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:52 pm CDT.
Sunshine
In October, the average sunshine is 6.1h.UV index
In October, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The average daily UV index of 3 in October transforms into the following instructions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Monticello, IL
- Average high temperature in October: 63.5°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (32.4°F).
- Average low temperature in October: 48°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in October
Monticello, 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 (29.92"Hg).
Average wind speed in October
Monticello, IL
- Average wind speed in October: 9.6mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in October
Monticello, IL
- Average humidity in October: 70%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).
Average rainfall in October
Monticello, IL
- Average rainfall in October: 1.18"
The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is December (0.91").
Average rainfall days in October
Monticello, IL
- Average rainfall days in October: 9.6 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in October
Monticello, IL
- Average snowfall in October: 0"
The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Monticello, IL
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
Monticello, IL
- Average daylight in October: 11h and 6min
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 24min).
- Average sunshine in October: 6h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in October
Monticello, IL
- Average sunshine days in October: 19.5 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in October
Monticello, 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
Monticello, IL
- Average cloud cover in October: 37
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are June, August and September (Cloud cover 32).
Average visibility in October
Monticello, 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).
