September weather forecast
Granville, NY

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Weather in September

September, the first month of the autumn in Granville, is also an agreeable month, with an average temperature fluctuating between 49.5°F (9.7°C) and 69.6°F (20.9°C).

Temperature

The shift from August to September includes a small decrease in the average high-temperature, from a warm 77.5°F (25.3°C) to an agreeable 69.6°F (20.9°C). During September, Granville witnesses a consistent average low-temperature of 49.5°F (9.7°C).

Humidity

In September, the average relative humidity is 79%.

Rainfall

In Granville, during September, the rain falls for 12.5 days and regularly aggregates up to 1.93" (49mm) of precipitation. Throughout the year, in Granville, there are 153.4 rainfall days, and 27.8" (706mm) of precipitation is accumulated.

Snowfall

In Granville, snow does not fall in June through September.

Daylight

In September, the average length of the day in Granville is 12h and 29min.
On the first day of September in Granville, sunrise is at 6:17 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:35 pm EDT.

Sunshine

In September, the average sunshine in Granville, New York, is 8.5h.

UV index

The average daily maximum UV index in September in Granville, New York, 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 the average person.
Note: A maximum daily UV index of 3 during September morphs into the following directions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Frequently asked questions

What are the temperatures in Granville in September?

During September, Granville experiences an average high-temperature of 69.6°F (20.9°C) and a low-temperature of 49.5°F (9.7°C).

What is the average humidity in September in Granville?

In September, the average relative humidity is 79%.

How much does it rain in Granville in September?

In Granville, during September, the rain falls for 12.5 days and regularly aggregates up to 1.93" (49mm) of precipitation.

When it does not snow in Granville?

June through September are months without snowfall.

Does it snow in Granville in September?

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

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

The average day length in September in Granville, New York, is 12h and 29min.

What time are sunrise and sunset in September in Granville?

On the first day of September in Granville, sunrise is at 6:17 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:35 pm EDT.

How long on average sun shines in September in Granville?

In September, the average sunshine duration is 8.5h.

What is the UV index reading in September in Granville?

The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
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
Granville, NY

Average temperature in September - Granville, NY
  • Average high temperature in September: 69.6°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (25.3°F).

  • Average low temperature in September: 49.5°F

The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (14.2°F).

Average pressure in September
Granville, NY

Average pressure in September - Granville, NY
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in September
Granville, NY

Average wind speed in September - Granville, NY
  • Average wind speed in September: 5.3mph

The windiest months (with the highest average wind speed) are January and April (7.2mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in September
Granville, NY

Average humidity in September - Granville, NY
  • Average humidity in September: 79%

The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is April (74%).

Average rainfall in September
Granville, NY

Average rainfall in September - Granville, NY
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January, February and March (1.89").

Average rainfall days in September
Granville, NY

Average rainfall days in September - Granville, NY
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (6.2 days).

Average snowfall in September
Granville, NY

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

The month with the highest snowfall is February (8.35").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Granville, NY

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

The month with the highest number of snowfall days is February (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Granville, NY
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).

Average sunshine days in September
Granville, NY

Average sunshine days in September - Granville, NY
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (10.9 days).

Average UV index in September
Granville, NY

Average UV index in September - Granville, 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 and December (UV index 1).

Average cloud cover in September
Granville, NY

Average cloud cover in September - Granville, NY
  • Average cloud cover in September: 38

The month with the most cloud cover is February (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 36).

Average visibility in September
Granville, NY

Average visibility in September - Granville, NY
  • Average visibility in September: 5mi

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

Granville, New York, USA

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