September weather forecast
Belmont, PA

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Weather in September

The first month of the autumn, September, is also an agreeable month in Belmont, Pennsylvania, with an average temperature varying between 52.7°F (11.5°C) and 72.1°F (22.3°C).

Temperature

Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a moderately hot 77.9°F (25.5°C) to an agreeable 72.1°F (22.3°C). Belmont experiences a consistent average temperature of 52.7°F (11.5°C) throughout the nights in September.

Humidity

The average relative humidity in September is 80%.

Rainfall

In Belmont, during September, the rain falls for 13.5 days and regularly aggregates up to 1.46" (37mm) of precipitation. In Belmont, during the entire year, the rain falls for 152.7 days and collects up to 21.1" (536mm) of precipitation.

Snowfall

In Belmont, snow does not fall in June through September.

Daylight

The average length of the day in September is 12h and 27min.
On the first day of September, sunrise is at 6:43 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:58 pm EDT.

Sunshine

In Belmont, Pennsylvania, the average sunshine in September is 8.2h.

UV index

In Belmont, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: In September, the average maximum UV index of 3 translates into the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The solar radiation around mid-day is intense; avoid the Sun and stay safe. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

In Belmont, in September, the average high-temperature is 72.1°F (22.3°C), and the average low-temperature is 52.7°F (11.5°C).

What is the average humidity in September?

The average relative humidity in September is 80%.

How many days does it rain in September?

In September, the rain falls for 13.5 days. Throughout September, 1.46" (37mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall.

Does it snow in Belmont in September?

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

What is the average length of the day in September?

In Belmont, the average day length in September is 12h and 27min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:43 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 6:58 pm EDT.

How many hours of sunshine does Belmont have in September?

In Belmont, Pennsylvania, the average sunshine duration in September is 8.2h.

How high is the UV index in September?

In Belmont, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Belmont, PA

Average temperature in September - Belmont, PA
  • Average high temperature in September: 72.1°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in September: 52.7°F

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in September
Belmont, PA

Average pressure in September - Belmont, PA
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
Belmont, PA

Average wind speed in September - Belmont, PA
  • Average wind speed in September: 5.9mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in September
Belmont, PA

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

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is July (78%).

Average rainfall in September
Belmont, PA

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

The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is November (1.1").

Average rainfall days in September
Belmont, PA

Average rainfall days in September - Belmont, PA
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is January (6.8 days).

Average snowfall in September
Belmont, PA

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

The month with the highest snowfall is March (4.21").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Belmont, PA

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

The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Belmont, 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 1min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in September
Belmont, PA

Average sunshine days in September - Belmont, PA
  • Average sunshine days in September: 13.9 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is May (9 days).

Average UV index in September
Belmont, PA

Average UV index in September - Belmont, 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).

Average cloud cover in September
Belmont, PA

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

The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 39).

Average visibility in September
Belmont, PA

Average visibility in September - Belmont, 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).

Belmont, Pennsylvania, USA

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