September weather forecast
Bonner, NE

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Bonner, Nebraska, with an average temperature varying between 76.5°F (24.7°C) and 55°F (12.8°C).

Temperature

The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from 84.7°F (29.3°C) in August to a still moderately hot 76.5°F (24.7°C). During September, Bonner's temperature falls to a steady low-temperature average of 55°F (12.8°C).

Humidity

The average relative humidity in September in Bonner, Nebraska, is 50%.

Rainfall

In September, the rain falls for 8.3 days. Throughout September, 0.87" (22mm) of precipitation is accumulated. In Bonner, Nebraska, during the entire year, the rain falls for 108.7 days and collects up to 15.79" (401mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Bonner. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 42.1 snowfall days, and 17.2" (437mm) of snow is accumulated.

Daylight

In Bonner, the average length of the day in September is 12h and 28min.
On the first day of September in Bonner, sunrise is at 6:18 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:34 pm MDT.

Sunshine

In September, the average sunshine in Bonner is 10.2h.

UV index

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index, 4 during September, leads to the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
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Frequently asked questions

What is the usual temperature for Bonner in September?

During September, Bonner experiences an average high-temperature of 76.5°F (24.7°C) and a low-temperature of 55°F (12.8°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in August is calculated to be 86°F (30°C).

What is the average humidity in September in Bonner?

The average relative humidity in September in Bonner, Nebraska, is 50%.

How much does it rain in Bonner in September?

In September, the rain falls for 8.3 days. Throughout September, 0.87" (22mm) of precipitation is accumulated.

When does it start snowing in Bonner?

September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

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

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

What time are sunrise and sunset in September in Bonner?

In September, on the first day of the month, sunrise is at 6:18 am and sunset at 7:25 pm. On the last day of the month, in Bonner, Nebraska, sunrise is at 6:48 am and sunset at 6:34 pm MDT.

How long on average sun shines in September in Bonner?

The average sunshine duration in September in Bonner is 10.2h.

How high is the UV index in September in Bonner?

In Bonner, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Bonner, NE

Average temperature in September - Bonner, NE
  • Average high temperature in September: 76.5°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is December (34.2°F).

  • Average low temperature in September: 55°F

The month with the highest average low temperature is July (64.8°F).
The coldest months (with the lowest average low temperature) are January and December (20.3°F).

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Average pressure in September
Bonner, NE

Average pressure in September - Bonner, NE
  • Average pressure in September: 29.94"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in September
Bonner, NE

Average wind speed in September - Bonner, NE
  • Average wind speed in September: 11.1mph

The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is August (10.1mph).

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Average humidity in September
Bonner, NE

Average humidity in September - Bonner, NE
  • Average humidity in September: 50%

The month with the highest relative humidity is January (73%).
The month with the lowest relative humidity is August (49%).

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Average rainfall in September
Bonner, NE

Average rainfall in September - Bonner, NE
  • Average rainfall in September: 0.87"

The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is January (0.35").

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Average rainfall days in September
Bonner, NE

Average rainfall days in September - Bonner, NE
  • Average rainfall days in September: 8.3 days

The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is December (3.1 days).

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Average snowfall in September
Bonner, NE

Average snowfall in September - Bonner, NE
  • Average snowfall in September: 0.04"

The month with the highest snowfall is February (3.27").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Bonner, NE

Average snowfall days in September - Bonner, NE
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in September /
Average sunshine in September
Bonner, NE

Average daylight in September / Average sunshine in September - Bonner, NE
  • 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: 10h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).

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Average sunshine days in September
Bonner, NE

Average sunshine days in September - Bonner, NE
  • Average sunshine days in September: 19 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (12 days).

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Average UV index in September
Bonner, NE

Average UV index in September - Bonner, NE
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 7).
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
Bonner, NE

Average cloud cover in September - Bonner, NE
  • Average cloud cover in September: 19

The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 17).

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Average visibility in September
Bonner, NE

Average visibility in September - Bonner, NE
  • Average visibility in September: 6mi

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

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Bonner, Nebraska, USA

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