September weather forecast
Barto, PA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Barto, Pennsylvania, with temperature in the range of an average low of 56.7°F (13.7°C) and an average high of 75.7°F (24.3°C).

Temperature

Transitioning from August to September involves a subtle drop in average high-temperatures, descending from 82.2°F (27.9°C) to a still moderately hot 75.7°F (24.3°C). During September, Barto experiences a consistent low-temperature average of 56.7°F (13.7°C).

Humidity

The average relative humidity in September is 78%.

Rainfall

September is the month with the least rainfall. Rain falls for 12 days and accumulates 1.65" (42mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:30 am and sunset at 7:33 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:45 pm EDT.

Sunshine

The average sunshine in September is 8.7h.

UV index

In Barto, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 4 during September leads to these instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.

Frequently asked questions

What is the average September temperature?

In September, the average high-temperature and low-temperature are 75.7°F (24.3°C) and 56.7°F (13.7°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is estimated at 87.8°F (31°C).

What is the average humidity in September?

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

What is the driest month?

September is the month with the least rainfall. Rain falls for 12 days and accumulates 1.65" (42mm) of precipitation.

How many days does it rain in September?

In Barto, in September, it is raining for 12 days, with typically 1.65" (42mm) of accumulated precipitation.

When it does not snow?

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

Does it snow in September?

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

How many hours of daylight does Barto have in September?

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 6:30 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:45 pm EDT.

How many hours of sunshine does Barto have in September?

In Barto, the average sunshine duration in September is 8.7h.

How high is the UV index in September in Barto?

In Barto, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Barto, PA

Average temperature in September - Barto, PA
  • Average high temperature in September: 75.7°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in September: 56.7°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in September
Barto, PA

Average pressure in September - Barto, PA
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Barto, PA

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

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Barto, PA

Average humidity in September - Barto, PA
  • Average humidity in September: 78%

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (75%).

Average rainfall in September
Barto, PA

Average rainfall in September - Barto, PA
  • Average rainfall in September: 1.65"

The wettest month (with the highest rainfall) is July (2.83").
The driest month (with the least rainfall) is September (1.65").

Average rainfall days in September
Barto, PA

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

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (8 days).

Average snowfall in September
Barto, PA

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

The month with the highest snowfall is March (3.86").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Barto, PA

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

The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Barto, PA

Average daylight in September / Average sunshine in September - Barto, PA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in September
Barto, PA

Average sunshine days in September - Barto, PA
  • Average sunshine days in September: 16 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is April (12 days).

Average UV index in September
Barto, PA

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

The months with the highest UV index are May, 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
Barto, PA

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

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in September
Barto, PA

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

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

Barto, Pennsylvania, USA

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