September weather forecast
Hillegass, PA

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Weather in September

The first month of the autumn, September, is still a warm month in Hillegass, Pennsylvania, with an average temperature fluctuating between 56.7°F (13.7°C) and 75.7°F (24.3°C).

Temperature

September is characterized by a mild reduction in the average high-temperature, from 82.2°F (27.9°C) in August to a still warm 75.7°F (24.3°C). During September nights, Hillegass records an average temperature of 56.7°F (13.7°C).

Humidity

In Hillegass, the average relative humidity in September is 78%.

Rainfall

The month with the least rainfall is September, when the rain falls for 12 days and typically collects 1.65" (42mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of September, sunrise is at 6:30 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:45 pm EDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

In Hillegass, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: A daily maximum UV index of 4 in September translates into the following instructions:
Ensure safety - Sun damage prevention is strongly urged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

Hillegass in September has an average high-temperature of 75.7°F (24.3°C) and an average low-temperature of 56.7°F (13.7°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is computed to be 87.8°F (31°C).

What is the average humidity in September in Hillegass?

In September, the average relative humidity is 78%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 12 days and typically collects 1.65" (42mm) of precipitation.

How many days does it rain in September?

In Hillegass, during September, the rain falls for 12 days and regularly aggregates up to 1.65" (42mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Hillegass have in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:30 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:45 pm EDT.

How long on average sun shines in September?

In Hillegass, the average sunshine duration in September is 8.7h.

What is the UV index reading in September?

The average daily maximum UV index in September is 4. 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
Hillegass, PA

Average temperature in September - Hillegass, PA
  • Average high temperature in September: 75.7°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in September: 56.7°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in September
Hillegass, PA

Average pressure in September - Hillegass, 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
Hillegass, PA

Average wind speed in September - Hillegass, PA
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Hillegass, PA

Average humidity in September - Hillegass, PA
  • Average humidity in September: 78%

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (75%).

Average rainfall in September
Hillegass, PA

Average rainfall in September - Hillegass, PA
  • Average rainfall in September: 1.65"

The wettest month (with the highest rainfall) is July (2.83").
The driest month (with the least rainfall) is September (1.65").

Average rainfall days in September
Hillegass, PA

Average rainfall days in September - Hillegass, PA
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (8 days).

Average snowfall in September
Hillegass, PA

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

The month with the highest snowfall is March (3.86").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Hillegass, PA

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

The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Hillegass, 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 18min).

  • 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 30min).

Average sunshine days in September
Hillegass, PA

Average sunshine days in September - Hillegass, PA
  • Average sunshine days in September: 16 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is April (12 days).

Average UV index in September
Hillegass, PA

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

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

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

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in September
Hillegass, PA

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

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

Hillegass, Pennsylvania, USA

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