September weather forecast
Edwardsville, PA

Share

Weather in September

The first month of the autumn, September, is still a pleasant month in Edwardsville, Pennsylvania, with temperature in the range of an average high of 71.4°F (21.9°C) and an average low of 51.6°F (10.9°C).

Temperature

September reveals a small adjustment in temperature, transitioning from an average high of a moderately hot 78.3°F (25.7°C) in August to a pleasant 71.4°F (21.9°C). Edwardsville, in September, observes a steady average low-temperature of 51.6°F (10.9°C).

Humidity

The average relative humidity in September is 80%.

Rainfall

September is the month with the least rainfall. Rain falls for 9.9 days and accumulates 0.71" (18mm) of precipitation.

Snowfall

June through September are months without snowfall in Edwardsville.

Daylight

The average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:30 am and sunset at 7:36 pm. On the last day of September, in Edwardsville, sunrise is at 7:00 am and sunset at 6:46 pm EDT.

Sunshine

In Edwardsville, the average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: In September, the UV index of 3 transforms into the following advice:
Take necessary precautions - Suggestions to elude sunburn are provided. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
[Resources]

Frequently asked questions

What is the usual temperature for Edwardsville in September?

In September, the average high-temperature and low-temperature are 71.4°F (21.9°C) and 51.6°F (10.9°C) respectively. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in July is appraised at 86°F (30°C).

What is the average humidity in September in Edwardsville?

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

What is the driest month in Edwardsville?

September is the month with the least rainfall. Rain falls for 9.9 days and accumulates 0.71" (18mm) of precipitation.

How much does it rain in Edwardsville in September?

In Edwardsville, Pennsylvania, during September, the rain falls for 9.9 days and regularly aggregates up to 0.71" (18mm) of precipitation.

When it does not snow in Edwardsville?

June through September are months without snowfall.

Does it snow in Edwardsville in September?

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

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

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

When is the sunrise / sunset in September in Edwardsville?

On the first day of September in Edwardsville, sunrise is at 6:30 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:46 pm EDT.

How long on average sun shines in September in Edwardsville?

The average sunshine duration in September in Edwardsville, Pennsylvania, is 8.6h.

How high is the UV index in September in Edwardsville?

In September, the average daily maximum UV index is 3. A UV Index reading 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
Edwardsville, PA

Average temperature in September - Edwardsville, PA
  • Average high temperature in September: 71.4°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in September: 51.6°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 (18.7°F).

[Resources]

Average pressure in September
Edwardsville, PA

Average pressure in September - Edwardsville, PA
  • Average pressure in September: 30.07"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).

[Resources]

Average wind speed in September
Edwardsville, PA

Average wind speed in September - Edwardsville, PA
  • Average wind speed in September: 5.8mph

The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

[Resources]

Average humidity in September
Edwardsville, PA

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

The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is April (77%).

[Resources]

Average rainfall in September
Edwardsville, PA

Average rainfall in September - Edwardsville, PA
  • Average rainfall in September: 0.71"

The wettest month (with the highest rainfall) is July (1.5").
The driest month (with the least rainfall) is September (0.71").

[Resources]

Average rainfall days in September
Edwardsville, PA

Average rainfall days in September - Edwardsville, PA
  • Average rainfall days in September: 9.9 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (8.3 days).

[Resources]

Average snowfall in September
Edwardsville, PA

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

The month with the highest snowfall is February (2.83").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in September
Edwardsville, PA

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

The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

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

Average daylight in September / Average sunshine in September - Edwardsville, 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 12min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).

[Resources]

Average sunshine days in September
Edwardsville, PA

Average sunshine days in September - Edwardsville, PA
  • Average sunshine days in September: 16.8 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is February (11.6 days).

[Resources]

Average UV index in September
Edwardsville, PA

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

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

[Resources]

Average cloud cover in September
Edwardsville, PA

Average cloud cover in September - Edwardsville, PA
  • Average cloud cover in September: 42

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 36).

[Resources]

Average visibility in September
Edwardsville, PA

Average visibility in September - Edwardsville, 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).

[Resources]

Edwardsville, Pennsylvania, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location