September weather forecastCairo, OH
September
Weather in September
September, the first month of the autumn in Cairo, is also a moderately hot month, with an average temperature fluctuating between 74.1°F (23.4°C) and 55.6°F (13.1°C).Temperature
With the arrival of September, Cairo's average high-temperature registers at a still moderately hot 74.1°F (23.4°C), indicating a subtle variation from the previous month. Cairo, during the nights of September, experiences an average temperature drop to a refreshing 55.6°F (13.1°C).Humidity
In September, the average relative humidity in Cairo is 79%.Rainfall
In September, in Cairo, the rain falls for 12.8 days. Throughout September, 1.57" (40mm) of precipitation is accumulated. Throughout the year, there are 149.3 rainfall days, and 23.35" (593mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Cairo, the average length of the day in September is 12h and 27min.On the first day of September in Cairo, Ohio, sunrise is at 7:03 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:19 pm EDT.
Sunshine
In Cairo, the average sunshine in September is 7.8h.UV index
The average daily maximum UV index in September in Cairo is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Ensure safety - Sun damage prevention is strongly urged. Avoiding the Sun during its peak radiation time around midday is a healthy practice. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cairo, OH
- Average high temperature in September: 74.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in September: 55.6°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Cairo, OH
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Cairo, OH
- Average wind speed in September: 6.7mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in September
Cairo, OH
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Cairo, OH
- Average rainfall in September: 1.57"
The wettest months (with the highest rainfall) are May and June (2.83").
The driest month (with the least rainfall) is December (1.34").
Average rainfall days in September
Cairo, OH
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in September
Cairo, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Cairo, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Cairo, OH
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Cairo, OH
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is June (9.9 days).
Average UV index in September
Cairo, OH
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Cairo, OH
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in September
Cairo, OH
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are August and September (5mi).
