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 transition into September subtly indicates a reduction in the average high-temperature, down to an agreeable 70°F (21.1°C) from August's warm 76.3°F (24.6°C). In Valley Mills, the average low-temperature during the month of September is a fresh 51.1°F (10.6°C).Humidity
In Valley Mills, the average relative humidity in September is 80%.Rainfall
September is the month with the least rainfall. Rain falls for 13.4 days and accumulates 2.01" (51mm) of precipitation.Snowfall
In Valley Mills, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 29min.On the first day of September, sunrise is at 6:27 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:44 pm EDT.
Sunshine
The average sunshine in September is 8.9h.UV index
In Valley Mills, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 3 during September translates into the following directions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Valley Mills in September?
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?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September in Valley Mills?
What is the UV index reading in September?
Average temperature in September
Valley Mills, NY
- Average high temperature in September: 70°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in September: 51.1°F
The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (16°F).
Average pressure in September
Valley Mills, 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 (29.92"Hg).
Average wind speed in September
Valley Mills, NY
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in September
Valley Mills, NY
- Average humidity in September: 80%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (78%).
Average rainfall in September
Valley Mills, NY
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in September
Valley Mills, NY
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is February (9 days).
Average snowfall in September
Valley Mills, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (7.95").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Valley Mills, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (20.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Valley Mills, 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: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in September
Valley Mills, NY
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is February (4.8 days).
Average UV index in September
Valley Mills, 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 and December (UV index 1).
Average cloud cover in September
Valley Mills, NY
- Average cloud cover in September: 36
The months with the most cloud cover are January and February (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Valley Mills, NY
- Average visibility in September: 5mi
The months with the highest visibility are April and October (6mi).
The months with the lowest visibility are January and February (4mi).
Valley Mills, New York, USA
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