September weather forecast
Pattersonville, PA

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Weather in September

September, the first month of the autumn in Pattersonville, is also an agreeable month, with temperature in the range of an average high of 72.7°F (22.6°C) and an average low of 53.8°F (12.1°C).

Temperature

September ushers in a minor alteration in Pattersonville's climate, with the average high-temperature moving from August's moderately hot 78.4°F (25.8°C) to a pleasant 72.7°F (22.6°C). Throughout September, the nighttime temperature averages to a fresh 53.8°F (12.1°C).

Humidity

The average relative humidity in September is 80%.

Rainfall

The month with the least rainfall is September, when the rain falls for 12 days and typically collects 1.77" (45mm) of precipitation.

Snowfall

June through September are months without snowfall in Pattersonville.

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of the month, sunrise is at 6:32 am and sunset at 7:36 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:48 pm EDT.

Sunshine

The average sunshine in September is 8.7h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 4 translates into these guidelines:
Undertake precautions - Obligation exists to protect against skin and eye damage. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Updated: Jul 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

Pattersonville in September has an average high-temperature of 72.7°F (22.6°C) and an average low-temperature of 53.8°F (12.1°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in July is evaluated at 86°F (30°C).

What is the average humidity in September?

The average relative humidity in September is 80%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 12 days and accumulates 1.77" (45mm) of precipitation.

How much does it rain in Pattersonville in September?

In Pattersonville, in September, it is raining for 12 days, with typically 1.77" (45mm) of accumulated precipitation.

When it does not snow?

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

Does it snow in September?

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

How many hours of daylight does Pattersonville have in September?

In Pattersonville, the average day length in September is 12h and 27min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:32 am and sunset at 7:36 pm. On the last day of the month, in Pattersonville, sunrise is at 7:01 am and sunset at 6:48 pm EDT.

How many hours of sunshine does Pattersonville have in September?

In September, the average sunshine duration is 8.7h.

What is the UV index reading in September?

In Pattersonville, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health risk 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
Pattersonville, PA

Average temperature in September - Pattersonville, PA
  • Average high temperature in September: 72.7°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.8°F).

  • Average low temperature in September: 53.8°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in September
Pattersonville, PA

Average pressure in September - Pattersonville, PA
  • Average pressure in September: 30.07"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Pattersonville, PA

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

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in September
Pattersonville, PA

Average humidity in September - Pattersonville, PA
  • Average humidity in September: 80%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).

Average rainfall in September
Pattersonville, PA

Average rainfall in September - Pattersonville, PA
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in September
Pattersonville, PA

Average rainfall days in September - Pattersonville, PA
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (8.9 days).

Average snowfall in September
Pattersonville, PA

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

The month with the highest snowfall is January (5.98").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Pattersonville, PA

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

The month with the highest number of snowfall days is January (12.8 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, PA

Average daylight in September / Average sunshine in September - Pattersonville, PA
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

Average sunshine days in September
Pattersonville, PA

Average sunshine days in September - Pattersonville, PA
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (10.3 days).

Average UV index in September
Pattersonville, PA

Average UV index in September - Pattersonville, PA
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in September
Pattersonville, PA

Average cloud cover in September - Pattersonville, PA
  • Average cloud cover in September: 39

The months with the most cloud cover are February and December (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in September
Pattersonville, PA

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

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

Pattersonville, Pennsylvania, USA

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