September weather forecast
Smithfield, OH

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Weather in September

September, the first month of the autumn in Smithfield, is also a moderately hot month, with an average temperature varying between 55°F (12.8°C) and 75.2°F (24°C).

Temperature

Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a moderately hot 81.5°F (27.5°C) to a still warm 75.2°F (24°C). Smithfield records an average low of 55°F (12.8°C) throughout the nights in September.

Humidity

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

Rainfall

In Smithfield, Ohio, in September, it is raining for 12.4 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, in Smithfield, there are 147 rainfall days, and 19.57" (497mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In Smithfield, Ohio, the average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:51 am and sunset at 7:54 pm. On the last day of September, in Smithfield, Ohio, sunrise is at 7:19 am and sunset at 7:06 pm EDT.

Sunshine

The average sunshine in September in Smithfield is 8.4h.

UV index

In September, the average daily maximum UV index in Smithfield is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

What are September temperatures in Smithfield?

In Smithfield, in September, the average high-temperature is 75.2°F (24°C), and the average low-temperature is 55°F (12.8°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is estimated at 87.8°F (31°C).

What is the average humidity in September in Smithfield?

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

How many days does it rain in September in Smithfield?

In Smithfield, in September, during 12.4 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

When it does not snow in Smithfield?

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

Does it snow in Smithfield in September?

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

How many hours of daylight does Smithfield have in September?

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

When are sunrise and sunset in September in Smithfield?

On the first day of September in Smithfield, sunrise is at 6:51 am and sunset at 7:54 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 Smithfield have in September?

In September, the average sunshine duration in Smithfield, Ohio, is 8.4h.

How high is the UV index in September in Smithfield?

In Smithfield, the average daily maximum UV index in September 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
Smithfield, OH

Average temperature in September - Smithfield, OH
  • Average high temperature in September: 75.2°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in September: 55°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

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Average pressure in September
Smithfield, OH

Average pressure in September - Smithfield, OH
  • Average pressure in September: 30.05"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).

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Average wind speed in September
Smithfield, OH

Average wind speed in September - Smithfield, OH
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).

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Average humidity in September
Smithfield, OH

Average humidity in September - Smithfield, OH
  • Average humidity in September: 79%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (77%).

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Average rainfall in September
Smithfield, OH

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

The wettest month (with the highest rainfall) is May (2.17").
The driest month (with the least rainfall) is January (1.02").

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Average rainfall days in September
Smithfield, OH

Average rainfall days in September - Smithfield, OH
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (6.7 days).

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Average snowfall in September
Smithfield, OH

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

The months with the highest snowfall are February and March (2.48").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Smithfield, OH

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

The month with the highest number of snowfall days is January (9.3 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
Smithfield, OH

Average daylight in September / Average sunshine in September - Smithfield, 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 2min

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

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Average sunshine days in September
Smithfield, OH

Average sunshine days in September - Smithfield, OH
  • Average sunshine days in September: 15.1 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (9.9 days).

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Average UV index in September
Smithfield, OH

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

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

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Average cloud cover in September
Smithfield, OH

Average cloud cover in September - Smithfield, OH
  • Average cloud cover in September: 40

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in September
Smithfield, OH

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

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

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Smithfield, Ohio, USA

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