September weather forecast
Sheff, IN

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Weather in September

The first month of the autumn, September, is still a warm month in Sheff, Indiana, with an average temperature varying between 75°F (23.9°C) and 56.8°F (13.8°C).

Temperature

Sheff records a slight change with September's average high-temperatures adjusting to a still warm 75°F (23.9°C) from August's 79.5°F (26.4°C). Sheff, during September, witnesses an average low-temperature of 56.8°F (13.8°C).

Humidity

The average relative humidity in September is 78%.

Rainfall

In September, in Sheff, the rain falls for 11.3 days. Throughout September, 1.1" (28mm) of precipitation is accumulated. In Sheff, during the entire year, the rain falls for 140.3 days and collects up to 17.56" (446mm) of precipitation.

Snowfall

May through October are months without snowfall in Sheff.

Daylight

The average length of the day in September is 12h and 27min.
On the first day of September in Sheff, sunrise is at 7:17 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 7:33 pm EDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

In Sheff, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
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Frequently asked questions

What are September temperatures in Sheff?

Sheff in September has an average high-temperature of 75°F (23.9°C) and an average low-temperature of 56.8°F (13.8°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What is the average humidity in September in Sheff?

The average relative humidity in September is 78%.

How many days does it rain in September in Sheff?

In September, in Sheff, Indiana, the rain falls for 11.3 days. Throughout September, 1.1" (28mm) of precipitation is accumulated.

When it does not snow in Sheff?

May through October are months without snowfall.

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

In September, the average day length in Sheff, Indiana, is 12h and 27min.

When is the sunrise / sunset in September in Sheff?

On the first day of September in Sheff, Indiana, sunrise is at 7:17 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 7:33 pm EDT.

How long on average sun shines in September in Sheff?

The average sunshine duration in September in Sheff is 8.5h.

What is the UV index intensity in September in Sheff?

The average daily maximum UV index in September in Sheff, Indiana, is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's 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
Sheff, IN

Average temperature in September - Sheff, IN
  • Average high temperature in September: 75°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in September: 56.8°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 (18.9°F).

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Average pressure in September
Sheff, IN

Average pressure in September - Sheff, IN
  • Average pressure in September: 30.03"Hg

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

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Average wind speed in September
Sheff, IN

Average wind speed in September - Sheff, IN
  • Average wind speed in September: 7.1mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in September
Sheff, IN

Average humidity in September - Sheff, IN
  • Average humidity in September: 78%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in September
Sheff, IN

Average rainfall in September - Sheff, IN
  • Average rainfall in September: 1.1"

The wettest month (with the highest rainfall) is May (2.64").
The driest months (with the least rainfall) are January and February (0.79").

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Average rainfall days in September
Sheff, IN

Average rainfall days in September - Sheff, IN
  • Average rainfall days in September: 11.3 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (4.9 days).

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Average snowfall in September
Sheff, IN

Average snowfall in September - Sheff, IN
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Sheff, IN

Average snowfall days in September - Sheff, IN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Sheff, IN

Average daylight in September / Average sunshine in September - Sheff, IN
  • Average daylight in September: 12h and 3min

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 18min).

  • Average sunshine in September: 8h and 3min

The months with the most sunshine are June and July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in September
Sheff, IN

Average sunshine days in September - Sheff, IN
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (9.4 days).

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Average UV index in September
Sheff, IN

Average UV index in September - Sheff, IN
  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in September
Sheff, IN

Average cloud cover in September - Sheff, IN
  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July, August and September (Cloud cover 34).

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Average visibility in September
Sheff, IN

Average visibility in September - Sheff, IN
  • Average visibility in September: 6mi

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

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Sheff, Indiana, USA

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