September weather forecast and climate
Liberty, NY

The first month of the autumn, September, is still a pleasant month in Liberty, New York, with average temperature ranging between min 49.1°F (9.5°C) and max 69.3°F (20.7°C).

Temperature

In September, the average high-temperature slightly decreases, from a warm 76.1°F (24.5°C) in August, to a pleasant 69.3°F (20.7°C). In September, the average low-temperature is 49.1°F (9.5°C).

Humidity

The average relative humidity in September is 81%.

Rainfall

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

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day in Liberty is 12.5h.

Sunshine

In September, the average sunshine in Liberty 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 health hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 3 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Liberty?

In Liberty, New York, in September, the average high-temperature is 69.3°F (20.7°C), and the average low-temperature is 49.1°F (9.5°C).

What is the average humidity in September in Liberty?

The average relative humidity in September is 81%.

How many days does it rain in September in Liberty?

In September, in Liberty, New York, the rain falls for 13.4 days. Throughout September, 2.52" (64mm) of precipitation is accumulated.

What is the driest month in Liberty?

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

Does it snow in Liberty in September?

In Liberty, New York, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Liberty?

June through September are months without snowfall in Liberty, New York.

What is the average length of the day in September in Liberty?

The average length of the day in September is 12.5h.

How long on average sun shines in September in Liberty?

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

What is the UV index intensity in September in Liberty?

The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV radiation.
Average temperature in September - Liberty, NY
  • Average high temperature in September: 20.7°C

The warmest month (with the highest average high temperature) is July (25.8°C).
The month with the lowest average high temperature is January (-2.2°C).

  • Average low temperature in September: 9.5°C

The month with the highest average low temperature is July (13.8°C).
The coldest month (with the lowest average low temperature) is January (-9.3°C).

Average pressure in September - Liberty, NY
  • Average pressure in September: 1018mbar

The month with the highest atmospheric pressure is November (1019.5mbar).
The month with the lowest atmospheric pressure is June (1013.6mbar).

Average wind speed in September - Liberty, NY
  • Average wind speed in September: 8.7km/h

The windiest month (with the highest average wind speed) is February (13.3km/h).
The calmest month (with the lowest average wind speed) is August (8.1km/h).

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

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

Average rainfall in September - Liberty, NY
  • Average rainfall in September: 64mm

The wettest month (with the highest rainfall) is April (88mm).
The driest month (with the least rainfall) is September (64mm).

Average rainfall days in September - Liberty, 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).

Average snowfall in September - Liberty, NY
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (254mm).
Months with the least snowfall are June, July, August and September (0mm).

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

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

Average daylight in September / Average sunshine in September - Liberty, NY
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in September: 8.2h

The month with the most sunshine is July (Average sunshine: 9.8h).
The month with the least sunshine is February (Average sunshine: 3.3h).

Average sunshine days in September - Liberty, 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).

Average UV index in September - Liberty, NY
  • Average UV index in September: 3

Months with the highest UV index are May, June, July and August (UV index 5).
Months with the lowest UV index are February, November and December (UV index 1).

Average cloud cover in September - Liberty, 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).

Average visibility in September - Liberty, NY
  • Average visibility in September: 7km

Months with the highest visibility are April, June and July (8km).
Months with the lowest visibility are January, February, March, May, August, September, October, November and December (7km).