September weather forecast
Andalusia, PA

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Weather in September

September, the first month of the autumn in Andalusia, is still a warm month, with an average temperature fluctuating between 77°F (25°C) and 60.3°F (15.7°C).

Temperature

With the onset of September, Andalusia's climate undergoes a slight change as the average high-temperature moves from a moderately hot 84.2°F (29°C) in August to a still warm 77°F (25°C). Andalusia, during September nights, observes an average temperature of 60.3°F (15.7°C).

Humidity

In September, the average relative humidity in Andalusia is 74%.

Rainfall

In September, the rain falls for 12.8 days. Throughout September, 2.01" (51mm) of precipitation is accumulated. In Andalusia, Pennsylvania, during the entire year, the rain falls for 153.8 days and collects up to 30.94" (786mm) of precipitation.

Snowfall

June through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of September in Andalusia, Pennsylvania, sunrise is at 6:28 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:43 pm EDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index in Andalusia is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Make use of precautions - It is urged to ward off sun damage. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in Andalusia?

The high-temperature during September is 77°F (25°C) and the low-temperature is 60.3°F (15.7°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is appraised at 91.4°F (33°C).

What is the average humidity in September in Andalusia?

In September, the average relative humidity in Andalusia is 74%.

How much does it rain in Andalusia in September?

In Andalusia, in September, it is raining for 12.8 days, with typically 2.01" (51mm) of accumulated precipitation.

When it does not snow in Andalusia?

June through October are months without snowfall in Andalusia, Pennsylvania.

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

In Andalusia, Pennsylvania, the average day length in September is 12h and 26min.

When are sunrise and sunset in September in Andalusia?

In September, on the first day of the month, sunrise is at 6:28 am and sunset at 7:31 pm. On the last day of the month, in Andalusia, sunrise is at 6:55 am and sunset at 6:43 pm EDT.

How many hours of sunshine does Andalusia have in September?

In September, the average sunshine duration in Andalusia, Pennsylvania, is 8.6h.

How high is the UV index in September in Andalusia?

The average daily maximum UV index in September in Andalusia, Pennsylvania, is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe 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
Andalusia, PA

Average temperature in September - Andalusia, PA
  • Average high temperature in September: 77°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in September: 60.3°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

Average pressure in September
Andalusia, PA

Average pressure in September - Andalusia, PA
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Andalusia, PA

Average wind speed in September - Andalusia, PA
  • Average wind speed in September: 6mph

The windiest months (with the highest average wind speed) are March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in September
Andalusia, PA

Average humidity in September - Andalusia, PA
  • Average humidity in September: 74%

The months with the highest relative humidity are February and October (77%).
The months with the lowest relative humidity are April, July and August (71%).

Average rainfall in September
Andalusia, PA

Average rainfall in September - Andalusia, PA
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is January (1.89").

Average rainfall days in September
Andalusia, PA

Average rainfall days in September - Andalusia, PA
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is November (7.5 days).

Average snowfall in September
Andalusia, PA

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

The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in September
Andalusia, PA

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

The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Andalusia, 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 24min).

  • 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 42min).

Average sunshine days in September
Andalusia, PA

Average sunshine days in September - Andalusia, PA
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (10.4 days).

Average UV index in September
Andalusia, PA

Average UV index in September - Andalusia, PA
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (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
Andalusia, PA

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

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in September
Andalusia, PA

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

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

Andalusia, Pennsylvania, USA

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