| < September >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Number of Wet Days (probability of rain on a day)
|Average Sunlight per day
|Average Daylight per day
|Sunny (Cloudy) Daylight Hours
|Sun altitude at solar noon on the 21st day.
- The average temperature in Cairo, Illinois in September is really warm at 22.5 °C (72.5 °F).
- Afternoons can be very hot with average high temperatures reaching 28 °C (82.4 °F).
- Overnight temperatures are generally very mild with an average low of 17 °C (62.6 °F).
- The average daily temperature range/ variation in September is 11 °C (19.8 °F).
- The weather in September is somewhat dry with sporadic rain. Just 76mm (3in) of water is transfered during on average 7 days.
- In September the heavens above Cairo, Illinois are sunny with on balance a sizable 9:03 of glaring solar radiation per day.
- The shortest day is 11:47 long and the longest day is 12:57 long with an average length of 12:22.
- There are approximately 3:09 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
- It is sunny approximately 74.2% of daylight hours and cloudy 25.8% of daylight hours.
Check the distance to and compare the Cairo, Illinois September averages with somewhere beginning with:
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Weather Trend Graph for September in Cairo, Illinois, Usa
Navigate to September Weather in Locations Surrounding Cairo, Illinois:
- Mcleansboro, Il, Usa - 133.7 kms (83.1 miles) NNE
- Evansville/ Regional, In, Usa - 185.4 kms (115.2 miles) NE
- Mt Vernon, Il, Usa - 112.2 kms (69.7 miles) N
- Duquoin, Il, Usa - 112.2 kms (69.7 miles) N
- Princeton, In, Usa - 151.5 kms (94.2 miles) NE
- Harrisburg, Il, Usa - 112.2 kms (69.7 miles) N
- Hopkinsville, Ky, Usa - 149.9 kms (93.1 miles) E
- Dickson, Tn, Usa - 189.2 kms (117.6 miles) ESE
- Dover, Tn, Usa - 152.4 kms (94.7 miles) SE
- Jackson, Tn, Usa - 157.3 kms (97.7 miles) SSE