September weather forecast
Ashtabula, OH

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Weather in September

September in Ashtabula, Ohio, signifies the onset of Autumn, with temperatures receding noticeably and the arrival of Fall foliage. A decrease in sunshine hours and shorter days serve as unmistakable autumnal signals. Rainfall levels increase, paving the way for the lush, vibrant colors that the season is renowned for displaying. The highest temperature drops to 70.7°F (21.5°C) from August's 75.9°F (24.4°C), indicating the start of cooler days. Gradually, the weather evokes a peaceful and contemplative mood, reflected in the slower pace of life.

Temperature

September's average high-temperature is a pleasant 70.7°F (21.5°C), maintaining a close comparison with August's 75.9°F (24.4°C). During September, Ashtabula sees a mean low-temperature of 58.6°F (14.8°C).

Humidity

The months with the lowest humidity in Ashtabula, Ohio, are July through September, with an average relative humidity of 78%.

Rainfall

In Ashtabula, during September, the rain falls for 16.7 days and regularly aggregates up to 2.64" (67mm) of precipitation. Throughout the year, in Ashtabula, there are 181 rainfall days, and 36.34" (923mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Ashtabula, Ohio.

Ocean temperature

In September, the average ocean temperature is 70.3°F (21.3°C).
Note: Most people do not find swimming enjoyable in water of 70.3°F (21.3°C). The task of controlling breathing becomes tougher as the temperature drops from 69.8°F (21°C) to 59°F (15°C).

Daylight

The average length of the day in September is 12h and 28min.
On the first day of September, sunrise is at 6:49 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:06 pm EDT.

Sunshine

In Ashtabula, the average sunshine in September is 8.7h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: In September, a daily UV index of 4 turns into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be on guard! The reflective nature of sand and water boosts UV exposure.
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Frequently asked questions

What is the average September temperature in Ashtabula?

The high-temperature, in September, in Ashtabula, records 70.7°F (21.5°C), while the low-temperature is 58.6°F (14.8°C).

What is the least humid month in Ashtabula?

July through September, with an average relative humidity of 78%, are the least humid months in Ashtabula, Ohio.

What is the average humidity in September in Ashtabula?

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

How many days does it rain in September in Ashtabula?

In Ashtabula, Ohio, in September, it is raining for 16.7 days, with typically 2.64" (67mm) of accumulated precipitation.

When it does not snow in Ashtabula?

June through September are months without snowfall in Ashtabula.

Does it snow in Ashtabula in September?

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

How cold is the water in September in Ashtabula?

In Ashtabula, in September, the average water temperature is 70.3°F (21.3°C). For most, swimming in 70.3°F (21.3°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

What is the average length of the day in September in Ashtabula?

In Ashtabula, Ohio, the average day length in September is 12h and 28min.

When is the sunrise / sunset in September in Ashtabula?

On the first day of September in Ashtabula, sunrise is at 6:49 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:06 pm EDT.

How many hours of sunshine does Ashtabula have in September?

In September, the average sunshine duration is 8.7h.

What is the UV index reading in September in Ashtabula?

The average daily maximum UV index in September in Ashtabula, Ohio, is 4. A UV Index estimate of 3 to 5 represents a medium health risk 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
Ashtabula, OH

Average temperature in September - Ashtabula, OH
  • Average high temperature in September: 70.7°F

The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in September: 58.6°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (21°F).

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Average pressure in September
Ashtabula, OH

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

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Ashtabula, OH

Average wind speed in September - Ashtabula, OH
  • Average wind speed in September: 8.5mph

The windiest month (with the highest average wind speed) is January (11.4mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

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Average humidity in September
Ashtabula, OH

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

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are July, August and September (78%).

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Average rainfall in September
Ashtabula, OH

Average rainfall in September - Ashtabula, OH
  • Average rainfall in September: 2.64"

The wettest month (with the highest rainfall) is June (3.94").
The driest months (with the least rainfall) are February and November (2.4").

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Average rainfall days in September
Ashtabula, OH

Average rainfall days in September - Ashtabula, OH
  • Average rainfall days in September: 16.7 days

The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is January (7.9 days).

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Average snowfall in September
Ashtabula, OH

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

The month with the highest snowfall is January (6.69").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Ashtabula, OH

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

The month with the highest number of snowfall days is January (18.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in September
Ashtabula, OH

Average sea temperature in September - Ashtabula, OH
  • Average sea temperature in September: 70.3°F

The best month for swimming (with the highest average sea temperature) is August (75.7°F).
The coldest month (with the lowest average sea temperature) is February (32.7°F).

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

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

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

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Average sunshine days in September
Ashtabula, OH

Average sunshine days in September - Ashtabula, OH
  • Average sunshine days in September: 11 days

The month with the most sunshine days is September (11 days).
The month with the least sunshine days is January (5.9 days).

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Average UV index in September
Ashtabula, OH

Average UV index in September - Ashtabula, 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).

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Average cloud cover in September
Ashtabula, OH

Average cloud cover in September - Ashtabula, OH
  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in September
Ashtabula, OH

Average visibility in September - Ashtabula, OH
  • Average visibility in September: 6mi

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

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Ashtabula, Ohio, USA

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