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
During the shift to September, a minor reduction in average high-temperature is observed, shifting from a moderately hot 77.9°F (25.5°C) in August to an agreeable 71.2°F (21.8°C). During September, the average low-temperature is a cool 52.7°F (11.5°C).Humidity
The average relative humidity in September is 79%.Rainfall
In Seneca Castle, in September, during 13.8 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, there are 157.9 rainfall days, and 22.48" (571mm) of precipitation is accumulated.Snowfall
In Seneca Castle, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 29min.On the first day of September in Seneca Castle, sunrise is at 6:33 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:50 pm EDT.
Sunshine
The average sunshine in September is 9h.UV index
In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index, 3 during September, leads to the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Seneca Castle in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Seneca Castle have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Seneca Castle, NY
- Average high temperature in September: 71.2°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in September
Seneca Castle, NY
- Average pressure in September: 30.05"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
Seneca Castle, NY
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in September
Seneca Castle, NY
- Average humidity in September: 79%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Seneca Castle, NY
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is October (2.64").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in September
Seneca Castle, NY
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in September
Seneca Castle, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Seneca Castle, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Seneca Castle, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).
Average sunshine days in September
Seneca Castle, NY
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is September (13.9 days).
The month with the least sunshine days is February (6.5 days).
Average UV index in September
Seneca Castle, NY
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Seneca Castle, NY
- Average cloud cover in September: 35
The months with the most cloud cover are January and February (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in September
Seneca Castle, 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).
Seneca Castle, New York, USA
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