September weather forecast
Gilbert, PA

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Weather in September

September, the first month of the autumn in Gilbert, is still a pleasant month, with an average temperature fluctuating between 72.3°F (22.4°C) and 53.1°F (11.7°C).

Temperature

With the onset of September, Gilbert's average high-temperature slightly adjusts, moderately receding from August's moderately hot 78.8°F (26°C) to an agreeable 72.3°F (22.4°C). Nighttime temperatures hover around an average low of 53.1°F (11.7°C) in September.

Humidity

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

Rainfall

September is the month with the least rainfall. Rain falls for 11.4 days and accumulates 1.46" (37mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September in Gilbert is 12h and 27min.
On the first day of September, sunrise is at 6:29 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:44 pm EDT.

Sunshine

In September, the average sunshine is 8.3h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 4 in September suggests the following recommendations:
Be vigilant - Preventing sunburn is recommended. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Updated: Jun 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

The average high-temperature and low-temperature during September are 72.3°F (22.4°C) and 53.1°F (11.7°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in July is calculated to be 86°F (30°C).

What is the average humidity in September?

The average relative humidity in September is 80%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 11.4 days and typically collects 1.46" (37mm) of precipitation.

How many days does it rain in September?

In Gilbert, during September, the rain falls for 11.4 days and regularly aggregates up to 1.46" (37mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

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

The average day length in September in Gilbert is 12h and 27min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:29 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:44 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.3h.

How high is the UV index in September?

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from 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
Gilbert, PA

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

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in September: 53.1°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in September
Gilbert, PA

Average pressure in September - Gilbert, 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
Gilbert, PA

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

The windiest months (with the highest average wind speed) are January, February and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in September
Gilbert, PA

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

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

Average rainfall in September
Gilbert, PA

Average rainfall in September - Gilbert, PA
  • Average rainfall in September: 1.46"

The wettest month (with the highest rainfall) is July (2.83").
The driest month (with the least rainfall) is September (1.46").

Average rainfall days in September
Gilbert, PA

Average rainfall days in September - Gilbert, PA
  • Average rainfall days in September: 11.4 days

The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is January (6.3 days).

Average snowfall in September
Gilbert, PA

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

The month with the highest snowfall is January (4.06").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Gilbert, PA

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

The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Gilbert, 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 2min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

Average sunshine days in September
Gilbert, PA

Average sunshine days in September - Gilbert, PA
  • Average sunshine days in September: 16.7 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.9 days).

Average UV index in September
Gilbert, PA

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

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).

Average cloud cover in September
Gilbert, PA

Average cloud cover in September - Gilbert, PA
  • Average cloud cover in September: 44

The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 38).

Average visibility in September
Gilbert, PA

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

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

Gilbert, Pennsylvania, USA

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