September weather forecastLeon, NY
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Leon, New York, with temperature in the range of an average high of 69.4°F (20.8°C) and an average low of 53.6°F (12°C).Temperature
The beginning of September brings a slight decrease in the average high-temperature, transitioning from a moderately hot 74.8°F (23.8°C) in August to a pleasant 69.4°F (20.8°C). Leon in September experiences a low-temperature average of 53.6°F (12°C).Humidity
The least humid month is September, with an average relative humidity of 80%.Rainfall
In Leon, in September, during 16.9 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. In Leon, during the entire year, the rain falls for 170.3 days and collects up to 32.36" (822mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:12 am and sunset at 6:58 pm EDT.
Sunshine
The average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In September, a daily UV index of 3 turns into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. The Sun's radiation is especially intense around midday; try to stay in shade during this period. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Leon, NY
- Average high temperature in September: 69.4°F
The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in September: 53.6°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in September
Leon, NY
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Leon, NY
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is January (11.5mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
Leon, NY
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is September (80%).
Average rainfall in September
Leon, NY
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is January (1.81").
Average rainfall days in September
Leon, NY
- Average rainfall days in September: 16.9 days
The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in September
Leon, NY
- Average snowfall in September: 0"
The month with the highest snowfall is November (5.79").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Leon, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Leon, NY
- Average daylight in September: 12h and 30min
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: 8h and 42min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in September
Leon, NY
- Average sunshine days in September: 10.5 days
The month with the most sunshine days is March (14 days).
The month with the least sunshine days is May (8.4 days).
Average UV index in September
Leon, NY
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Leon, NY
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Leon, NY
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).
