Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The onset of September entails a subtle temperature shift, as the average high-temperature eases from a moderately hot 78.4°F (25.8°C) in August to a pleasant 71.4°F (21.9°C). Cairo sees an average low-temperature of 51.4°F (10.8°C) during September.Humidity
In September, the average relative humidity is 79%.Rainfall
September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 1.97" (50mm) of precipitation.Snowfall
In Cairo, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:22 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:38 pm EDT.
Sunshine
In Cairo, the average sunshine in September is 9.1h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, an average UV index of 3 transforms into the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Cairo have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Cairo have in September?
How high is the UV index in September?
Average temperature in September
Cairo, NY
- Average high temperature in September: 71.4°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in September: 51.4°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in September
Cairo, NY
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Cairo, NY
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Cairo, NY
- Average humidity in September: 79%
The months with the highest relative humidity are February and December (83%).
The months with the lowest relative humidity are April, June and July (76%).
Average rainfall in September
Cairo, NY
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is July (3.46").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in September
Cairo, NY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is February (10 days).
Average snowfall in September
Cairo, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (11.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Cairo, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (15.8 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, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in September
Cairo, NY
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is April (9.8 days).
Average UV index in September
Cairo, NY
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in September
Cairo, NY
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Cairo, NY
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Cairo, New York, USA
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