September weather forecast
Manchester, NY

Weather in September

September, the first month of the autumn in Manchester, is still a pleasant month, with an average temperature fluctuating between 71.4°F (21.9°C) and 53.2°F (11.8°C).

Temperature

In September, the average high-temperature marginally drops from a warm 78.1°F (25.6°C) in August to an agreeable 71.4°F (21.9°C). The average low-temperature, in September, is 53.2°F (11.8°C).

Humidity

In Manchester, the average relative humidity in September is 78%.

Rainfall

In September, in Manchester, New York, the rain falls for 10.5 days. Throughout September, 0.75" (19mm) of precipitation is accumulated. Throughout the year, there are 123.3 rainfall days, and 11.54" (293mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September in Manchester is 12h and 29min.
On the first day of September in Manchester, New York, sunrise is at 6:33 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:52 pm EDT.

Sunshine

In Manchester, the average sunshine in September is 8.9h.

UV index

In September, the average daily maximum UV index in Manchester is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 3 in September interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the 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.
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FAQ

What is the temperature in September in Manchester?

In September, in Manchester, New York, the average high-temperature is 71.4°F (21.9°C), and the average low-temperature is 53.2°F (11.8°C).

What is the average humidity in September in Manchester?

In September, the average relative humidity is 78%.

How many days does it rain in September in Manchester?

In Manchester, in September, during 10.5 rainfall days, 0.75" (19mm) of precipitation is typically accumulated.

When it does not snow in Manchester?

June through September are months without snowfall in Manchester.

Does it snow in Manchester in September?

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

How many hours of daylight does Manchester have in September?

The average day length in September in Manchester is 12h and 29min.

What time are sunrise and sunset in September in Manchester?

On the first day of September in Manchester, sunrise is at 6:33 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:52 pm EDT.

How long on average sun shines in September in Manchester?

In September, the average sunshine duration in Manchester is 8.9h.

What is the UV index reading in September in Manchester?

In September, the average daily maximum UV index in Manchester, New York, is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Manchester, NY

Average temperature in September - Manchester, NY
  • Average high temperature in September: 71.4°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in September: 53.2°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

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Average pressure in September
Manchester, NY

Average pressure in September - Manchester, 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).

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Average wind speed in September
Manchester, NY

Average wind speed in September - Manchester, NY
  • Average wind speed in September: 6.6mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).

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Average humidity in September
Manchester, NY

Average humidity in September - Manchester, NY
  • Average humidity in September: 78%

The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is April (77%).

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Average rainfall in September
Manchester, NY

Average rainfall in September - Manchester, NY
  • Average rainfall in September: 0.75"

The wettest month (with the highest rainfall) is October (1.38").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days in September
Manchester, NY

Average rainfall days in September - Manchester, NY
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is May (13.9 days).
The months with the least rainy days are January and February (5.1 days).

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Average snowfall in September
Manchester, NY

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

The month with the highest snowfall is February (2.4").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Manchester, NY

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

The month with the highest number of snowfall days is January (14.8 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
Manchester, NY

Average daylight in September / Average sunshine in September - Manchester, NY
  • Average daylight in September: 12h and 29min

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 4min).

  • Average sunshine in September: 8h and 54min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 2h and 36min).

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Average sunshine days in September
Manchester, NY

Average sunshine days in September - Manchester, NY
  • Average sunshine days in September: 16.9 days

The month with the most sunshine days is September (16.9 days).
The month with the least sunshine days is April (12 days).

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Average UV index in September
Manchester, NY

Average UV index in September - Manchester, 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).

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Average cloud cover in September
Manchester, NY

Average cloud cover in September - Manchester, NY
  • Average cloud cover in September: 36

The month with the most cloud cover is January (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 32).

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Average visibility in September
Manchester, NY

Average visibility in September - Manchester, NY
  • Average visibility in September: 6mi

The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).

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