October weather forecastMarissa, IL
October
Weather in October
October, like September, in Marissa, Illinois, is another refreshing autumn month, with an average temperature fluctuating between 49.1°F (9.5°C) and 66.7°F (19.3°C).Temperature
The onset of October results in a decrease in the average high-temperature, receding from a moderately hot 79.3°F (26.3°C) in September to a comfortable 66.7°F (19.3°C). Throughout the month of October, Marissa witnesses an average temperature of 49.1°F (9.5°C).Humidity
The least humid month in Marissa is October, with an average relative humidity of 71%.Rainfall
In Marissa, in October, it is raining for 9.8 days, with typically 1.65" (42mm) of accumulated precipitation. In Marissa, during the entire year, the rain falls for 129.6 days and collects up to 19.09" (485mm) of precipitation.Snowfall
January through March, September through December are months with snowfall. In October, it is snowing for 0.1 days. Throughout October, 0.04" (1mm) of snow is accumulated. In Marissa, Illinois, during the entire year, snow falls for 16.2 days and aggregates up to 3.19" (81mm) of snow.Daylight
In Marissa, the average length of the day in October is 11h and 11min.On the first day of the month, sunrise is at 6:55 am and sunset at 6:41 pm. On the last day of October, sunrise is at 7:24 am and sunset at 6:00 pm CDT.
Sunshine
In Marissa, the average sunshine in October is 6.4h.UV index
The average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: During October, 3 as the daily maximum UV index converts into the following advice:
Adopt protective measures - It is advised to guard against sun damage. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Marissa, IL
- Average high temperature in October: 66.7°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.3°F).
- Average low temperature in October: 49.1°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 (25.2°F).
Average pressure in October
Marissa, IL
- Average pressure in October: 30.04"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in October
Marissa, IL
- Average wind speed in October: 7.9mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in October
Marissa, IL
- Average humidity in October: 71%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in October
Marissa, IL
- Average rainfall in October: 1.65"
The wettest month (with the highest rainfall) is May (2.48").
The driest month (with the least rainfall) is February (0.83").
Average rainfall days in October
Marissa, IL
- Average rainfall days in October: 9.8 days
The month with the highest number of rainy days is July (15.1 days).
The months with the least rainy days are January and December (6.5 days).
Average snowfall in October
Marissa, IL
- Average snowfall in October: 0.04"
The month with the highest snowfall is January (1.06").
The months with the least snowfall are April, May, June, July and August (0").
Average snowfall days in October
Marissa, IL
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Marissa, 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 36min).
- Average sunshine in October: 6h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in October
Marissa, IL
- Average sunshine days in October: 20.2 days
The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is July (13.7 days).
Average UV index in October
Marissa, 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
Marissa, IL
- Average cloud cover in October: 32
The months with the most cloud cover are January and February (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 27).
Average visibility in October
Marissa, 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).





