September weather forecast
Gradyville, PA

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Weather in September

The first month of the autumn, September, is still a warm month in Gradyville, Pennsylvania, with an average temperature fluctuating between 76.3°F (24.6°C) and 60.1°F (15.6°C).

Temperature

The start of September signals a gentle decrease in the average high-temperature, transitioning from a warm 83.1°F (28.4°C) in August to a still moderately hot 76.3°F (24.6°C). Throughout the month of September, Gradyville witnesses an average temperature of 60.1°F (15.6°C).

Humidity

In Gradyville, the average relative humidity in September is 76%.

Rainfall

In Gradyville, during September, the rain falls for 13.6 days and regularly aggregates up to 2.44" (62mm) of precipitation. In Gradyville, during the entire year, the rain falls for 166.6 days and collects up to 35.59" (904mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Gradyville, the average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 6:30 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:45 pm EDT.

Sunshine

In Gradyville, the average sunshine in September is 8.7h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: A typical high UV index of 5 in September suggests the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

Frequently asked questions

What are the temperatures in September?

The average high-temperature, in September, in Gradyville, is 76.3°F (24.6°C), while the average low-temperature is 60.1°F (15.6°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in August is computed to be 89.6°F (32°C).

What is the average humidity in September?

In September, the average relative humidity is 76%.

How much does it rain in September?

In September, the rain falls for 13.6 days. Throughout September, 2.44" (62mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Gradyville have in September?

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

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:30 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:45 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.7h.

What is the UV index reading in September?

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

Average temperature in September - Gradyville, PA
  • Average high temperature in September: 76.3°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in September: 60.1°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

Average pressure in September
Gradyville, PA

Average pressure in September - Gradyville, 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 (29.94"Hg).

Average wind speed in September
Gradyville, PA

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

The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in September
Gradyville, PA

Average humidity in September - Gradyville, PA
  • Average humidity in September: 76%

The months with the highest relative humidity are February and October (78%).
The month with the lowest relative humidity is April (72%).

Average rainfall in September
Gradyville, PA

Average rainfall in September - Gradyville, PA
  • Average rainfall in September: 2.44"

The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (2.36").

Average rainfall days in September
Gradyville, PA

Average rainfall days in September - Gradyville, PA
  • Average rainfall days in September: 13.6 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (8.6 days).

Average snowfall in September
Gradyville, PA

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

The month with the highest snowfall is February (3.19").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Gradyville, PA

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

The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Gradyville, 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 48min).

Average sunshine days in September
Gradyville, PA

Average sunshine days in September - Gradyville, PA
  • Average sunshine days in September: 14.1 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (10 days).

Average UV index in September
Gradyville, PA

Average UV index in September - Gradyville, 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, November and December (UV index 2).

Average cloud cover in September
Gradyville, PA

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

The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in September
Gradyville, PA

Average visibility in September - Gradyville, 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).

Gradyville, Pennsylvania, USA

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