September weather forecast
Port Clinton, PA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Port Clinton, Pennsylvania, with temperature in the range of an average high of 73.8°F (23.2°C) and an average low of 54.7°F (12.6°C).

Temperature

The arrival of September corresponds with a light shift in temperature, down from a warm 80.2°F (26.8°C) in August to a still moderately hot 73.8°F (23.2°C). Throughout the month of September, the average temperature in Port Clinton dips to a fresh 54.7°F (12.6°C) at night.

Humidity

In Port Clinton, the average relative humidity in September is 79%.

Rainfall

The month with the least rainfall in Port Clinton is September, when the rain falls for 11.2 days and typically collects 1.61" (41mm) of precipitation.

Snowfall

In Port Clinton, snow does not fall in June through September.

Daylight

In September, the average length of the day in Port Clinton, Pennsylvania, is 12h and 27min.
On the first day of the month, sunrise is at 6:31 am and sunset at 7:35 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:47 pm EDT.

Sunshine

In Port Clinton, Pennsylvania, the average sunshine in September is 8.7h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Guard yourself - Avoiding sunburn is suggested. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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Frequently asked questions

What is the average September temperature in Port Clinton?

The high-temperature, in September, in Port Clinton, is 73.8°F (23.2°C), while the low-temperature averages to 54.7°F (12.6°C). In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 89.6°F (32°C).

What is the average humidity in September in Port Clinton?

In September, the average relative humidity in Port Clinton is 79%.

What is the driest month in Port Clinton?

The month with the least rainfall in Port Clinton, Pennsylvania, is September, when the rain falls for 11.2 days and typically collects 1.61" (41mm) of precipitation.

How many days does it rain in September in Port Clinton?

In Port Clinton, in September, during 11.2 rainfall days, 1.61" (41mm) of precipitation is typically accumulated.

When it does not snow in Port Clinton?

June through September are months without snowfall in Port Clinton.

Does it snow in Port Clinton in September?

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

How many hours of daylight does Port Clinton have in September?

In Port Clinton, Pennsylvania, the average day length in September is 12h and 27min.

When are sunrise and sunset in September in Port Clinton?

In September, on the first day of the month, sunrise is at 6:31 am and sunset at 7:35 pm. On the last day of the month, in Port Clinton, sunrise is at 7:00 am and sunset at 6:47 pm EDT.

How many hours of sunshine does Port Clinton have in September?

In September, the average sunshine duration is 8.7h.

What is the UV index reading in September in Port Clinton?

In September, the average daily maximum UV index in Port Clinton, Pennsylvania, is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
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
Port Clinton, PA

Average temperature in September - Port Clinton, PA
  • Average high temperature in September: 73.8°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.6°F).

  • Average low temperature in September: 54.7°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in September
Port Clinton, PA

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

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Port Clinton, PA

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

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in September
Port Clinton, PA

Average humidity in September - Port Clinton, PA
  • Average humidity in September: 79%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in September
Port Clinton, PA

Average rainfall in September - Port Clinton, PA
  • Average rainfall in September: 1.61"

The wettest month (with the highest rainfall) is August (2.87").
The driest month (with the least rainfall) is September (1.61").

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Average rainfall days in September
Port Clinton, PA

Average rainfall days in September - Port Clinton, PA
  • Average rainfall days in September: 11.2 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (7.7 days).

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Average snowfall in September
Port Clinton, PA

Average snowfall in September - Port Clinton, 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").

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Average snowfall days in September
Port Clinton, PA

Average snowfall days in September - Port Clinton, PA
  • Average snowfall days in September: 0 days

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

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Average daylight in September /
Average sunshine in September
Port Clinton, PA

Average daylight in September / Average sunshine in September - Port Clinton, PA
  • Average daylight in September: 12h and 3min

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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days in September
Port Clinton, PA

Average sunshine days in September - Port Clinton, PA
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is May (10.8 days).

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Average UV index in September
Port Clinton, PA

Average UV index in September - Port Clinton, PA
  • Average UV index in September: 4

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in September
Port Clinton, PA

Average cloud cover in September - Port Clinton, PA
  • Average cloud cover in September: 38

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in September
Port Clinton, PA

Average visibility in September - Port Clinton, PA
  • Average visibility in September: 5mi

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

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Port Clinton, Pennsylvania, USA

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