September weather forecast
Potsdam, OH

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Weather in September

The first month of the autumn, September, is still a warm month in Potsdam, Ohio, with temperature in the range of an average high of 74.7°F (23.7°C) and an average low of 56.7°F (13.7°C).

Temperature

Potsdam experiences an average high-temperature of a still warm 74.7°F (23.7°C) in September, marking an insignificant shift from 79.5°F (26.4°C) in August. Potsdam encounters a steady low-temperature average of 56.7°F (13.7°C) throughout the month of September.

Humidity

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

Rainfall

In Potsdam, in September, it is raining for 12.5 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 148.7 rainfall days, and 22.32" (567mm) of precipitation is accumulated.

Snowfall

In Potsdam, snow does not fall in May through September.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 7:06 am and sunset at 8:08 pm. On the last day of September, sunrise is at 7:33 am and sunset at 7:21 pm EDT.

Sunshine

In September, the average sunshine is 8h.

UV index

In Potsdam, Ohio, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: In September, a regular UV index of 4 translates into these guidelines:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Updated: Jun 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

September temperatures vary between a high-temperature of 74.7°F (23.7°C) and a low-temperature of 56.7°F (13.7°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in July is appraised at 86°F (30°C).

What is the average humidity in September?

The average relative humidity in September in Potsdam is 78%.

How many days does it rain in September?

In Potsdam, in September, it is raining for 12.5 days, with typically 1.46" (37mm) of accumulated precipitation.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Potsdam have in September?

The average day length in September in Potsdam is 12h and 26min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 7:06 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 7:21 pm EDT.

How long on average sun shines in September?

The average sunshine duration in September is 8h.

How high is the UV index in September?

In Potsdam, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health threat 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
Potsdam, OH

Average temperature in September - Potsdam, OH
  • Average high temperature in September: 74.7°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (32.4°F).

  • Average low temperature in September: 56.7°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

Average pressure in September
Potsdam, OH

Average pressure in September - Potsdam, OH
  • Average pressure in September: 30.03"Hg

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Potsdam, OH

Average wind speed in September - Potsdam, OH
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in September
Potsdam, OH

Average humidity in September - Potsdam, OH
  • Average humidity in September: 78%

The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are October and November (75%).

Average rainfall in September
Potsdam, OH

Average rainfall in September - Potsdam, OH
  • Average rainfall in September: 1.46"

The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is February (1.3").

Average rainfall days in September
Potsdam, OH

Average rainfall days in September - Potsdam, OH
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (6.5 days).

Average snowfall in September
Potsdam, OH

Average snowfall in September - Potsdam, OH
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.73").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Potsdam, OH

Average snowfall days in September - Potsdam, OH
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Potsdam, OH

Average daylight in September / Average sunshine in September - Potsdam, OH
  • 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 0min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in September
Potsdam, OH

Average sunshine days in September - Potsdam, OH
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (10 days).

Average UV index in September
Potsdam, OH

Average UV index in September - Potsdam, OH
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in September
Potsdam, OH

Average cloud cover in September - Potsdam, OH
  • Average cloud cover in September: 35

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in September
Potsdam, OH

Average visibility in September - Potsdam, OH
  • Average visibility in September: 5mi

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

Potsdam, Ohio, USA

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