September weather forecast
Youngsville, NY

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Weather in September

September, the first month of the autumn in Youngsville, is still a pleasant month, with an average temperature fluctuating between 49.1°F (9.5°C) and 69.3°F (20.7°C).

Temperature

Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a moderately hot 76.1°F (24.5°C) to an agreeable 69.3°F (20.7°C). Nightly temperatures drop to an average low of 49.1°F (9.5°C) in September.

Humidity

The average relative humidity in September is 81%.

Rainfall

September is the month with the least rainfall in Youngsville, New York. Rain falls for 13.4 days and accumulates 2.52" (64mm) of precipitation.

Snowfall

In Youngsville, New York, snow does not fall in June through September.

Daylight

The average length of the day in September in Youngsville is 12h and 28min.
On the first day of the month, sunrise is at 6:26 am and sunset at 7:32 pm. On the last day of September, sunrise is at 6:56 am and sunset at 6:42 pm EDT.

Sunshine

The average sunshine in September in Youngsville is 8.2h.

UV index

In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 3 suggests these recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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Frequently asked questions

What is the usual temperature for Youngsville in September?

The high-temperature, in September, in Youngsville, records 69.3°F (20.7°C), while the low-temperature is 49.1°F (9.5°C).

What is the average humidity in September in Youngsville?

In Youngsville, New York, the average relative humidity in September is 81%.

What is the driest month in Youngsville?

The month with the least rainfall in Youngsville, New York, is September, when the rain falls for 13.4 days and typically collects 2.52" (64mm) of precipitation.

How much does it rain in Youngsville in September?

In Youngsville, New York, in September, during 13.4 rainfall days, 2.52" (64mm) of precipitation is typically accumulated.

When it does not snow in Youngsville?

In Youngsville, New York, snow does not fall in June through September.

Does it snow in Youngsville in September?

In Youngsville, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Youngsville have in September?

The average day length in September is 12h and 28min.

What time are sunrise and sunset in September in Youngsville?

On the first day of September in Youngsville, sunrise is at 6:26 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:42 pm EDT.

How many hours of sunshine does Youngsville have in September?

In Youngsville, New York, the average sunshine duration in September is 8.2h.

What is the UV index reading in September in Youngsville?

In Youngsville, New York, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Youngsville, NY

Average temperature in September - Youngsville, NY
  • Average high temperature in September: 69.3°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in September: 49.1°F

The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

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Average pressure in September
Youngsville, NY

Average pressure in September - Youngsville, NY
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Youngsville, NY

Average wind speed in September - Youngsville, NY
  • Average wind speed in September: 5.4mph

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in September
Youngsville, NY

Average humidity in September - Youngsville, NY
  • Average humidity in September: 81%

The months with the highest relative humidity are February and December (87%).
The month with the lowest relative humidity is July (79%).

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Average rainfall in September
Youngsville, NY

Average rainfall in September - Youngsville, NY
  • Average rainfall in September: 2.52"

The wettest month (with the highest rainfall) is April (3.46").
The driest month (with the least rainfall) is September (2.52").

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Average rainfall days in September
Youngsville, NY

Average rainfall days in September - Youngsville, NY
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (8.3 days).

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Average snowfall in September
Youngsville, NY

Average snowfall in September - Youngsville, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is February (10").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Youngsville, NY

Average snowfall days in September - Youngsville, NY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Youngsville, NY

Average daylight in September / Average sunshine in September - Youngsville, 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 12min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).

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Average sunshine days in September
Youngsville, NY

Average sunshine days in September - Youngsville, NY
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (7 days).

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Average UV index in September
Youngsville, NY

Average UV index in September - Youngsville, 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 February, November and December (UV index 1).

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Average cloud cover in September
Youngsville, NY

Average cloud cover in September - Youngsville, NY
  • Average cloud cover in September: 46

The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 41).

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Average visibility in September
Youngsville, NY

Average visibility in September - Youngsville, NY
  • Average visibility in September: 4mi

The months with the highest visibility are April, June and July (5mi).
The months with the lowest visibility are January, February, March, May, August, September, October, November and December (4mi).

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Youngsville, New York, USA

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