September weather forecast
Unityville, PA

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Weather in September

September, the first month of the autumn in Unityville, is also an agreeable month, with temperature in the range of an average low of 51.8°F (11°C) and an average high of 72.3°F (22.4°C).

Temperature

In Unityville, the average high-temperature in September gently drops from a warm 79°F (26.1°C) in August to a pleasant 72.3°F (22.4°C). Throughout September, Unityville registers a consistent average low-temperature of 51.8°F (11°C).

Humidity

In September, the average relative humidity is 80%.

Rainfall

In Unityville, during September, the rain falls for 13.2 days and regularly aggregates up to 2.09" (53mm) of precipitation. Throughout the year, there are 168 rainfall days, and 27.32" (694mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of the month, sunrise is at 6:33 am and sunset at 7:38 pm. On the last day of September, sunrise is at 7:02 am and sunset at 6:49 pm EDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A daily high UV index of 3 in September leads to these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.

Frequently asked questions

What is the average September temperature?

September temperatures vary between a high-temperature of 72.3°F (22.4°C) and a low-temperature of 51.8°F (11°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is estimated at 87.8°F (31°C).

What is the average humidity in September?

In Unityville, the average relative humidity in September is 80%.

How many days does it rain in September?

In Unityville, in September, it is raining for 13.2 days, with typically 2.09" (53mm) of accumulated precipitation.

When it does not snow?

June through September are months without snowfall.

Does it snow in Unityville in September?

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

How many hours of daylight does Unityville have in September?

In September, the average day length is 12h and 28min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:33 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:49 pm EDT.

How many hours of sunshine does Unityville have in September?

In September, the average sunshine duration is 8.7h.

How high is the UV index in September?

In Unityville, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Unityville, PA

Average temperature in September - Unityville, PA
  • Average high temperature in September: 72.3°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (30.9°F).

  • Average low temperature in September: 51.8°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average pressure in September
Unityville, PA

Average pressure in September - Unityville, 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
Unityville, PA

Average wind speed in September - Unityville, PA
  • Average wind speed in September: 5.4mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in September
Unityville, PA

Average humidity in September - Unityville, 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
Unityville, PA

Average rainfall in September - Unityville, PA
  • Average rainfall in September: 2.09"

The wettest month (with the highest rainfall) is April (2.83").
The driest month (with the least rainfall) is November (1.77").

Average rainfall days in September
Unityville, PA

Average rainfall days in September - Unityville, PA
  • Average rainfall days in September: 13.2 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (9.7 days).

Average snowfall in September
Unityville, PA

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

The month with the highest snowfall is February (5.43").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Unityville, PA

Average snowfall days in September - Unityville, 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
Unityville, PA

Average daylight in September / Average sunshine in September - Unityville, 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 18min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).

Average sunshine days in September
Unityville, PA

Average sunshine days in September - Unityville, PA
  • Average sunshine days in September: 14.2 days

The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is February (10 days).

Average UV index in September
Unityville, PA

Average UV index in September - Unityville, PA
  • Average UV index in September: 3

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

Average cloud cover in September
Unityville, PA

Average cloud cover in September - Unityville, PA
  • Average cloud cover in September: 40

The months with the most cloud cover are January, February and December (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in September
Unityville, PA

Average visibility in September - Unityville, 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).

Unityville, Pennsylvania, USA

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