October weather forecastCairo, IL
October
Weather in October
October heralds in an agreeable autumn spell in Cairo, Illinois. While temperatures significantly drop in comparison to September, they remain comfortably warm during the day. This month's weather, therefore, offers a pleasant balance between clear, sunny skies and cooler temperatures. A visible shift in foliage color to autumn hues is observable, adding to the scenic beauty of the region.Temperature
Cairo in October experiences a subtle temperature decline, with average high-temperatures reducing from a warm 81.5°F (27.5°C) in September to an agreeable 68.9°F (20.5°C). During October in Cairo, the average low-temperature is recorded at a cool 51.1°F (10.6°C).Humidity
With an average relative humidity of 69%, October is the least humid month.Rainfall
In Cairo, in October, during 11.3 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, in Cairo, Illinois, there are 156.3 rainfall days, and 36.65" (931mm) of precipitation is accumulated.Snowfall
Months with snowfall in Cairo are January through April, October through December. October is the first month it typically snows in Cairo. Throughout October, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 11.5 snowfall days, and 4.88" (124mm) of snow is accumulated.Daylight
In October, the average length of the day in Cairo, Illinois, is 11h and 14min.On the first day of October in Cairo, sunrise is at 6:52 am and sunset at 6:39 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 6:00 pm CDT.
Sunshine
In October, the average sunshine in Cairo is 6.6h.UV index
In Cairo, the average daily maximum UV index in October is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In October, a regular UV index of 4 translates into these guidelines:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Cairo, IL
- Average high temperature in October: 68.9°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41.2°F).
- Average low temperature in October: 51.1°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in October
Cairo, IL
- Average pressure in October: 30.05"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in October
Cairo, IL
- Average wind speed in October: 7.6mph
The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in October
Cairo, IL
- Average humidity in October: 69%
The months with the highest relative humidity are February, March, May and December (78%).
The month with the lowest relative humidity is October (69%).
Average rainfall in October
Cairo, IL
- Average rainfall in October: 2.68"
The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in October
Cairo, IL
- Average rainfall days in October: 11.3 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in October
Cairo, IL
- Average snowfall in October: 0.08"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Cairo, IL
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is February (3.8 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
Cairo, IL
- Average daylight in October: 11h and 12min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in October: 6h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in October
Cairo, IL
- Average sunshine days in October: 18.5 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in October
Cairo, IL
- Average UV index in October: 4
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 and December (UV index 2).
Average cloud cover in October
Cairo, IL
- Average cloud cover in October: 31
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in October
Cairo, 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).





