October weather forecastJacksonville, IL
October
Weather in October
October, the same as September, is another comfortable autumn month in Jacksonville, Illinois, with an average temperature fluctuating between 47.5°F (8.6°C) and 64°F (17.8°C).Temperature
October is characterized by a reduction in the average high-temperature, from a moderately hot 77.7°F (25.4°C) in September to a comfortable 64°F (17.8°C). During October, Jacksonville witnesses a consistent average low-temperature of 47.5°F (8.6°C).Humidity
October is the least humid month, with an average relative humidity of 71%.Rainfall
In Jacksonville, during October, the rain falls for 11.8 days and regularly aggregates up to 2.72" (69mm) of precipitation. Throughout the year, in Jacksonville, there are 148.2 rainfall days, and 29.37" (746mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow. In Jacksonville, during the entire year, snow falls for 28.3 days and aggregates up to 9.76" (248mm) of snow.Daylight
In October, the average length of the day is 11h and 8min.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 7:29 am and sunset at 5:59 pm CDT.
Sunshine
The average sunshine in October is 5.9h.UV index
The average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In October, a daily UV index of 3 turns into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Jacksonville, IL
- Average high temperature in October: 64°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in October: 47.5°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in October
Jacksonville, IL
- Average pressure in October: 30.02"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in October
Jacksonville, IL
- Average wind speed in October: 8.8mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in October
Jacksonville, IL
- Average humidity in October: 71%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in October
Jacksonville, IL
- Average rainfall in October: 2.72"
The wettest month (with the highest rainfall) is June (3.58").
The driest month (with the least rainfall) is December (1.54").
Average rainfall days in October
Jacksonville, IL
- Average rainfall days in October: 11.8 days
The month with the highest number of rainy days is May (18 days).
The months with the least rainy days are January and February (7.1 days).
Average snowfall in October
Jacksonville, IL
- Average snowfall in October: 0.08"
The month with the highest snowfall is January (3.58").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Jacksonville, IL
- Average snowfall days in October: 0.2 days
The month with the highest number of snowfall days is January (9.6 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
Jacksonville, IL
- Average daylight in October: 11h and 6min
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 24min).
- Average sunshine in October: 5h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in October
Jacksonville, IL
- Average sunshine days in October: 17.3 days
The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in October
Jacksonville, 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
Jacksonville, IL
- Average cloud cover in October: 34
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).
Average visibility in October
Jacksonville, 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).
