September weather forecast
Plymouth, OH

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Weather in September

September, the first month of the autumn in Plymouth, is still a pleasant month, with temperature in the range of an average high of 73°F (22.8°C) and an average low of 55.4°F (13°C).

Temperature

The advent of September brings an average high-temperature of an agreeable 73°F (22.8°C), almost identical to the preceding month. Throughout September, an average low-temperature of 55.4°F (13°C) is expected.

Humidity

In September, the average relative humidity is 80%.

Rainfall

In Plymouth, during September, the rain falls for 15.2 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, there are 171.1 rainfall days, and 30.75" (781mm) of precipitation is accumulated.

Snowfall

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

Daylight

In September, the average length of the day in Plymouth is 12h and 27min.
On the first day of September, sunrise is at 6:58 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 7:13 pm EDT.

Sunshine

In September, the average sunshine is 7.9h.

UV index

In Plymouth, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: The UV index of 4 during September leads to these advisories:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

Plymouth in September has an average high-temperature of 73°F (22.8°C) and an average low-temperature of 55.4°F (13°C).

What is the average humidity in September in Plymouth?

The average relative humidity in September is 80%.

How much does it rain in September?

In Plymouth, in September, it is raining for 15.2 days, with typically 2.13" (54mm) of accumulated precipitation.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

What is the average length of the day in September?

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

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:58 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 7:13 pm EDT.

How long on average sun shines in September?

The average sunshine duration in September is 7.9h.

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 health risk 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
Plymouth, OH

Average temperature in September - Plymouth, OH
  • Average high temperature in September: 73°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in September: 55.4°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

Average pressure in September
Plymouth, OH

Average pressure in September - Plymouth, OH
  • Average pressure in September: 30.04"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Plymouth, OH

Average wind speed in September - Plymouth, OH
  • Average wind speed in September: 6.8mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).

Average humidity in September
Plymouth, OH

Average humidity in September - Plymouth, OH
  • Average humidity in September: 80%

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, October and November (77%).

Average rainfall in September
Plymouth, OH

Average rainfall in September - Plymouth, OH
  • Average rainfall in September: 2.13"

The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is February (2.01").

Average rainfall days in September
Plymouth, OH

Average rainfall days in September - Plymouth, OH
  • Average rainfall days in September: 15.2 days

The months with the highest number of rainy days are May and July (18.7 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in September
Plymouth, OH

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

The month with the highest snowfall is February (5.35").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Plymouth, OH

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

The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Plymouth, OH
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 7h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in September
Plymouth, OH

Average sunshine days in September - Plymouth, OH
  • Average sunshine days in September: 13 days

The month with the most sunshine days is November (14.5 days).
The month with the least sunshine days is February (9.3 days).

Average UV index in September
Plymouth, OH

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in September
Plymouth, OH

Average cloud cover in September - Plymouth, OH
  • Average cloud cover in September: 37

The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 32).

Average visibility in September
Plymouth, OH

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

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

Plymouth, Ohio, USA

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