September weather forecast
Idaho, OH

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Weather in September

September, the first month of the autumn in Idaho, is still a warm month, with an average temperature fluctuating between 56.5°F (13.6°C) and 77.9°F (25.5°C).

Temperature

The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a moderately hot 84°F (28.9°C) in August to a still warm 77.9°F (25.5°C). Idaho, in September, witnesses an average low-temperature of 56.5°F (13.6°C).

Humidity

April, August through November, with an average relative humidity of 76%, are the least humid months in Idaho.

Rainfall

The month with the least rainfall in Idaho is September, when the rain falls for 11.9 days and typically collects 1.38" (35mm) of precipitation.

Snowfall

In Idaho, snow does not fall in May through October.

Daylight

In Idaho, the average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 7:01 am and sunset at 8:02 pm. On the last day of September, sunrise is at 7:28 am and sunset at 7:16 pm EDT.

Sunshine

In Idaho, Ohio, the average sunshine in September is 8.1h.

UV index

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

What is the temperature in September in Idaho?

The average high-temperature, in September, in Idaho, is 77.9°F (25.5°C), while the average low-temperature is 56.5°F (13.6°C). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in August is evaluated at 93.2°F (34°C).

What are the least humid months in Idaho?

The months with the lowest humidity in Idaho are April, August through November, with an average relative humidity of 76%.

What is the average humidity in September in Idaho?

In Idaho, the average relative humidity in September is 76%.

What is the driest month in Idaho?

The month with the least rainfall is September, when the rain falls for 11.9 days and typically collects 1.38" (35mm) of precipitation.

How much does it rain in Idaho in September?

In Idaho, during September, the rain falls for 11.9 days and regularly aggregates up to 1.38" (35mm) of precipitation.

When it does not snow in Idaho?

In Idaho, Ohio, snow does not fall in May through October.

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

In Idaho, Ohio, the average day length in September is 12h and 26min.

When is the sunrise / sunset in September in Idaho?

On the first day of September, sunrise is at 7:01 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:16 pm EDT.

How long on average sun shines in September in Idaho?

In September, the average sunshine duration in Idaho is 8.1h.

What is the UV index reading in September in Idaho?

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Idaho, OH

Average temperature in September - Idaho, OH
  • Average high temperature in September: 77.9°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in September: 56.5°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

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Average pressure in September
Idaho, OH

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

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in September
Idaho, OH

Average wind speed in September - Idaho, OH
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in September
Idaho, OH

Average humidity in September - Idaho, OH
  • Average humidity in September: 76%

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April, August, September, October and November (76%).

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Average rainfall in September
Idaho, OH

Average rainfall in September - Idaho, OH
  • Average rainfall in September: 1.38"

The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is September (1.38").

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Average rainfall days in September
Idaho, OH

Average rainfall days in September - Idaho, OH
  • Average rainfall days in September: 11.9 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (8 days).

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Average snowfall in September
Idaho, OH

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

The month with the highest snowfall is February (2.2").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Idaho, OH

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

The month with the highest number of snowfall days is January (7.5 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
Idaho, OH

Average daylight in September / Average sunshine in September - Idaho, OH
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in September
Idaho, OH

Average sunshine days in September - Idaho, OH
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is May (11.7 days).

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Average UV index in September
Idaho, OH

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

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in September
Idaho, OH

Average cloud cover in September - Idaho, OH
  • Average cloud cover in September: 35

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in September
Idaho, OH

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

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

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Idaho, Ohio, USA

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