September weather forecast
Bow Valley Mills, NE

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Weather in September

The first month of the autumn, September, is still a warm month in Bow Valley Mills, Nebraska, with an average temperature varying between 55°F (12.8°C) and 75.9°F (24.4°C).

Temperature

September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from 82.2°F (27.9°C) in August to a still moderately hot 75.9°F (24.4°C). In September, the recorded average low-temperature is a fresh 55°F (12.8°C).

Humidity

In Bow Valley Mills, the average relative humidity in September is 68%.

Rainfall

In Bow Valley Mills, during September, the rain falls for 11.1 days and regularly aggregates up to 1.61" (41mm) of precipitation. Throughout the year, there are 118.7 rainfall days, and 20.79" (528mm) of precipitation is accumulated.

Snowfall

In Bow Valley Mills, snow does not fall in June through September.

Daylight

The average length of the day in September is 12h and 29min.
On the first day of September, sunrise is at 6:54 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:11 pm CDT.

Sunshine

In September, the average sunshine is 8.9h.

UV index

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 unsafe exposure to UV radiation for the ordinary person.
Note: In September, the UV index of 5 transforms into the following advice:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Updated: Jul 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

The high-temperature, in September, in Bow Valley Mills, is 75.9°F (24.4°C), while the low-temperature averages to 55°F (12.8°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 87.8°F (31°C).

What is the average humidity in September?

In September, the average relative humidity is 68%.

How many days does it rain in September?

In Bow Valley Mills, in September, during 11.1 rainfall days, 1.61" (41mm) of precipitation is typically accumulated.

When it does not snow in Bow Valley Mills?

June through September are months without snowfall.

Does it snow in September?

In Bow Valley Mills, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Bow Valley Mills have in September?

The average day length in September is 12h and 29min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:54 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:11 pm CDT.

How many hours of sunshine does Bow Valley Mills have in September?

In September, the average sunshine duration is 8.9h.

What is the UV index reading in September?

The average daily maximum UV index in September is 5. 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
Bow Valley Mills, NE

Average temperature in September - Bow Valley Mills, NE
  • Average high temperature in September: 75.9°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in September: 55°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

Average pressure in September
Bow Valley Mills, NE

Average pressure in September - Bow Valley Mills, NE
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in September
Bow Valley Mills, NE

Average wind speed in September - Bow Valley Mills, NE
  • Average wind speed in September: 9.4mph

The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is July (8mph).

Average humidity in September
Bow Valley Mills, NE

Average humidity in September - Bow Valley Mills, NE
  • Average humidity in September: 68%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (65%).

Average rainfall in September
Bow Valley Mills, NE

Average rainfall in September - Bow Valley Mills, NE
  • Average rainfall in September: 1.61"

The wettest month (with the highest rainfall) is June (3.27").
The driest month (with the least rainfall) is November (0.63").

Average rainfall days in September
Bow Valley Mills, NE

Average rainfall days in September - Bow Valley Mills, NE
  • Average rainfall days in September: 11.1 days

The month with the highest number of rainy days is June (17.8 days).
The months with the least rainy days are January and February (3.3 days).

Average snowfall in September
Bow Valley Mills, NE

Average snowfall in September - Bow Valley Mills, NE
  • Average snowfall in September: 0"

The month with the highest snowfall is February (3.03").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Bow Valley Mills, NE

Average snowfall days in September - Bow Valley Mills, NE
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Bow Valley Mills, NE

Average daylight in September / Average sunshine in September - Bow Valley Mills, NE
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in September
Bow Valley Mills, NE

Average sunshine days in September - Bow Valley Mills, NE
  • Average sunshine days in September: 16.3 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (10.2 days).

Average UV index in September
Bow Valley Mills, NE

Average UV index in September - Bow Valley Mills, NE
  • Average UV index in September: 5

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

Average cloud cover in September
Bow Valley Mills, NE

Average cloud cover in September - Bow Valley Mills, NE
  • Average cloud cover in September: 27

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 25).

Average visibility in September
Bow Valley Mills, NE

Average visibility in September - Bow Valley Mills, 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).

Bow Valley Mills, Nebraska, USA

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