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
As September transitions into October, Monticello sees a drop in the average high-temperature, transitioning from a warm 76.6°F (24.8°C) to an enjoyable 63.5°F (17.5°C). During the month of October, Monticello anticipates a mean low-temperature of 48°F (8.9°C).Humidity
The least humid month is October, with an average relative humidity of 70%.Rainfall
In Monticello, Illinois, during October, the rain falls for 9.6 days and regularly aggregates up to 1.18" (30mm) of 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 Monticello, the average length of the day in October 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
The average sunshine in October is 6.1h.UV index
The average daily maximum UV index in October in Monticello is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: An average maximum UV index of 3 in October leads to these recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Frequently asked questions
What is the average October temperature in Monticello?
What is the least humid month in Monticello?
What is the average humidity in October in Monticello?
How many days does it rain in October in Monticello?
When it does not snow in Monticello?
Does it snow in Monticello in October?
How many hours of daylight does Monticello have in October?
When are sunrise and sunset in October in Monticello?
How many hours of sunshine does Monticello have in October?
What is the UV index intensity in October in Monticello?
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 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 24min).
- Average sunshine in October: 6h and 1min
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).
Monticello, Illinois, USA
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