September weather forecast
Pattersonville, NY

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Weather in September

September, the first month of the autumn in Pattersonville, is also an agreeable month, with an average temperature varying between 51.1°F (10.6°C) and 71.4°F (21.9°C).

Temperature

September reveals a small adjustment in temperature, transitioning from an average high of a moderately hot 78.4°F (25.8°C) in August to a pleasant 71.4°F (21.9°C). Throughout September, Pattersonville encounters an average temperature drop to a fresh 51.1°F (10.6°C).

Humidity

The average relative humidity in September is 78%.

Rainfall

In Pattersonville, during September, the rain falls for 9.2 days and regularly aggregates up to 1.26" (32mm) of precipitation. In Pattersonville, during the entire year, the rain falls for 122.4 days and collects up to 18.78" (477mm) of precipitation.

Snowfall

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

Daylight

In Pattersonville, the average length of the day in September is 12h and 29min.
On the first day of September, sunrise is at 6:21 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:38 pm EDT.

Sunshine

The average sunshine in September is 9h.

UV index

The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: An average maximum UV index of 3 in September leads to these recommendations:
Undertake precautions - Guarding against sun damage is counselled. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

The average high-temperature, in September, in Pattersonville, is 71.4°F (21.9°C), while the average low-temperature is 51.1°F (10.6°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in July is calculated to be 84.2°F (29°C).

What is the average humidity in September?

The average relative humidity in September is 78%.

How much does it rain in September?

In Pattersonville, in September, during 9.2 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

What is the average length of the day in September?

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

When is the sunrise / sunset in September in Pattersonville?

On the first day of September, sunrise is at 6:21 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:38 pm EDT.

How many hours of sunshine does Pattersonville have in September?

The average sunshine duration in September is 9h.

What is the UV index reading in September in Pattersonville?

In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health risk 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
Pattersonville, NY

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

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in September: 51.1°F

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

Average pressure in September
Pattersonville, NY

Average pressure in September - Pattersonville, NY
  • Average pressure in September: 30.06"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
Pattersonville, NY

Average wind speed in September - Pattersonville, NY
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in September
Pattersonville, NY

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

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (74%).

Average rainfall in September
Pattersonville, NY

Average rainfall in September - Pattersonville, NY
  • Average rainfall in September: 1.26"

The wettest months (with the highest rainfall) are May and October (2.01").
The driest month (with the least rainfall) is March (1.14").

Average rainfall days in September
Pattersonville, NY

Average rainfall days in September - Pattersonville, NY
  • Average rainfall days in September: 9.2 days

The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (4.7 days).

Average snowfall in September
Pattersonville, NY

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

The month with the highest snowfall is January (4.57").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Pattersonville, NY

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

The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Pattersonville, 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: 9h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).

Average sunshine days in September
Pattersonville, NY

Average sunshine days in September - Pattersonville, NY
  • Average sunshine days in September: 18.9 days

The month with the most sunshine days is November (19.8 days).
The months with the least sunshine days are April, May and July (14.3 days).

Average UV index in September
Pattersonville, NY

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

Average cloud cover in September
Pattersonville, NY

Average cloud cover in September - Pattersonville, NY
  • Average cloud cover in September: 35

The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 33).

Average visibility in September
Pattersonville, NY

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

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

Pattersonville, New York, USA

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