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
Jacksonville's October weather comes with a decrease in average high-temperatures, moving from a moderately hot 77.7°F (25.4°C) in September to a comfortable 64°F (17.8°C). Throughout the month of October, Jacksonville sees a steady low-temperature average of 47.5°F (8.6°C).Humidity
October is the least humid month in Jacksonville, 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. In Jacksonville, during the entire year, the rain falls for 148.2 days and collects up to 29.37" (746mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. October is the first month it typically snows in Jacksonville. Throughout October, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 28.3 snowfall days, and 9.76" (248mm) of snow is accumulated.Daylight
In Jacksonville, Illinois, the average length of the day in October is 11h and 8min.On the first day of the month, sunrise is at 6:57 am and sunset at 6:42 pm. On the last day of October, sunrise is at 7:29 am and sunset at 5:59 pm CDT.
Sunshine
In Jacksonville, Illinois, the average sunshine in October is 5.9h.UV index
In October, the average daily maximum UV index in Jacksonville is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 3 in October leads to these recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Enhance your sun protection with tightly woven, yet airy clothing. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
What is the usual temperature for Jacksonville in October?
What is the least humid month in Jacksonville?
What is the average humidity in October in Jacksonville?
How much does it rain in Jacksonville in October?
When does it start snowing in Jacksonville?
What is the average length of the day in October in Jacksonville?
When is the sunrise / sunset in October in Jacksonville?
How long on average sun shines in October in Jacksonville?
What is the UV index reading in October in Jacksonville?
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 1min
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 5min
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).
Jacksonville, Illinois, USA
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