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 advent of September brings a slight shift in average high-temperature, moving from a moderately hot 75.7°F (24.3°C) in August to a pleasant 69.3°F (20.7°C). During September, Clark Mills consistently records a temperature low averaging a fresh 50.5°F (10.3°C).Humidity
In September, the average relative humidity is 80%.Rainfall
The month with the least rainfall is September, when the rain falls for 14.1 days and typically collects 2.6" (66mm) of precipitation.Snowfall
In Clark Mills, 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, sunrise is at 6:26 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:43 pm EDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
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?
What is the average length of the day 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
Clark Mills, NY
- Average high temperature in September: 69.3°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (26.4°F).
- Average low temperature in September: 50.5°F
The month with the highest average low temperature is July (57.9°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in September
Clark 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
Clark Mills, NY
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in September
Clark Mills, NY
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are April and May (78%).
Average rainfall in September
Clark Mills, NY
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is April (3.82").
The driest month (with the least rainfall) is September (2.6").
Average rainfall days in September
Clark Mills, NY
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in September
Clark Mills, NY
- Average snowfall in September: 0"
The month with the highest snowfall is January (11.22").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Clark Mills, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (20.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Clark 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 6min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).
Average sunshine days in September
Clark Mills, NY
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is September (13.4 days).
The month with the least sunshine days is February (4.4 days).
Average UV index in September
Clark Mills, 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
Clark Mills, NY
- Average cloud cover in September: 37
The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in September
Clark Mills, NY
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
Clark Mills, New York, USA
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