September weather forecast
Suffield, OH

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Suffield, Ohio, with an average temperature ranging between max 74.1°F (23.4°C) and min 55°F (12.8°C).

Temperature

Suffield's September weather shows a modest shift in high-temperatures, falling from August's moderately hot 80.8°F (27.1°C) to a still warm 74.1°F (23.4°C). In the month of September, the average low-temperature usually rests at a fresh 55°F (12.8°C).

Humidity

The average relative humidity in September is 78%.

Rainfall

The month with the least rainfall is September, when the rain falls for 15.5 days and typically collects 2.01" (51mm) of precipitation.

Snowfall

June through September are months without snowfall in Suffield.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of September, sunrise is at 6:52 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:08 pm EDT.

Sunshine

In September, the average sunshine is 8.2h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 4 suggests this advice:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Frequently asked questions

What is the average September temperature?

The high-temperature, in September, in Suffield, is 74.1°F (23.4°C), while the low-temperature averages to 55°F (12.8°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 86°F (30°C).

What is the average humidity in September?

The average relative humidity in September is 78%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 15.5 days and accumulates 2.01" (51mm) of precipitation.

How much does it rain in September?

In Suffield, during September, the rain falls for 15.5 days and regularly aggregates up to 2.01" (51mm) of precipitation.

When it does not snow?

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

Does it snow in September?

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

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

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:52 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:08 pm EDT.

How many hours of sunshine does Suffield have in September?

In September, the average sunshine duration is 8.2h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes 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
Suffield, OH

Average temperature in September - Suffield, OH
  • Average high temperature in September: 74.1°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in September: 55°F

The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average pressure in September
Suffield, OH

Average pressure in September - Suffield, 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 (29.94"Hg).

Average wind speed in September
Suffield, OH

Average wind speed in September - Suffield, OH
  • Average wind speed in September: 5.9mph

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is July (5.3mph).

Average humidity in September
Suffield, OH

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

The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are July and August (76%).

Average rainfall in September
Suffield, OH

Average rainfall in September - Suffield, OH
  • Average rainfall in September: 2.01"

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

Average rainfall days in September
Suffield, OH

Average rainfall days in September - Suffield, OH
  • Average rainfall days in September: 15.5 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (8.6 days).

Average snowfall in September
Suffield, OH

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

The month with the highest snowfall is January (6.85").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Suffield, OH

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

The month with the highest number of snowfall days is January (18.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Suffield, 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: 8h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).

Average sunshine days in September
Suffield, OH

Average sunshine days in September - Suffield, OH
  • Average sunshine days in September: 12.4 days

The month with the most sunshine days is November (13.1 days).
The month with the least sunshine days is February (7.6 days).

Average UV index in September
Suffield, OH

Average UV index in September - Suffield, 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
Suffield, OH

Average cloud cover in September - Suffield, OH
  • Average cloud cover in September: 39

The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in September
Suffield, OH

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

The months with the highest visibility are April, June, July and August (6mi).
The months with the lowest visibility are January and February (4mi).

Suffield, Ohio, USA

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