October weather forecastDorchester, IL
October
Weather in October
October, the same as September, is another refreshing autumn month in Dorchester, Illinois, with an average temperature fluctuating between 48.4°F (9.1°C) and 65.3°F (18.5°C).Temperature
A change in temperatures is noted as September gives way to October, with average highs reducing from a warm 77.9°F (25.5°C) to a refreshing 65.3°F (18.5°C). During the nights in October, Dorchester experiences a consistent average temperature of 48.4°F (9.1°C).Humidity
October is the least humid month, with an average relative humidity of 71%.Rainfall
In Dorchester, in October, it is raining for 8.5 days, with typically 1.1" (28mm) of accumulated precipitation. Throughout the year, in Dorchester, there are 121.4 rainfall days, and 14.72" (374mm) of precipitation is accumulated.Snowfall
In Dorchester, snow does not fall in April through October.Daylight
In October, the average length of the day is 11h and 10min.On the first day of October in Dorchester, sunrise is at 6:56 am and sunset at 6:41 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:59 pm CDT.
Sunshine
The average sunshine in October in Dorchester is 6.2h.UV index
In Dorchester, Illinois, the average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 3 in October translates into the following instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Dorchester, IL
- Average high temperature in October: 65.3°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in October: 48.4°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in October
Dorchester, 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
Dorchester, IL
- Average wind speed in October: 8.5mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in October
Dorchester, IL
- Average humidity in October: 71%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in October
Dorchester, IL
- Average rainfall in October: 1.1"
The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in October
Dorchester, IL
- Average rainfall days in October: 8.5 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in October
Dorchester, IL
- Average snowfall in October: 0"
The month with the highest snowfall is December (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in October
Dorchester, 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
Dorchester, IL
- Average daylight in October: 11h and 12min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in October: 6h and 12min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in October
Dorchester, IL
- Average sunshine days in October: 19.7 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is July (12.5 days).
Average UV index in October
Dorchester, 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
Dorchester, IL
- Average cloud cover in October: 33
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).
Average visibility in October
Dorchester, 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).





