September weather forecast and climate
Brownlee, NE

Weather in September

The first month of the autumn, September, is also a moderately hot month in Brownlee, Nebraska, with average temperature ranging between max 75.2°F (24°C) and min 55.6°F (13.1°C).

Temperature

In September, the average high-temperature marginally drops, from 84°F (28.9°C) in August, to a still moderately hot 75.2°F (24°C). The average low-temperature, in Brownlee, is 55.6°F (13.1°C).

Humidity

September is the least humid month, with an average relative humidity of 59%.

Rainfall

In Brownlee, in September, it is raining for 10.4 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 103.2 rainfall days, and 17.44" (443mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Brownlee are January through May, September through December. September is the first month it typically snows in Brownlee. Throughout September, in the average 0.1 snowfall days, it receives 0.24" (6mm) of snow. Throughout the year, there are 39.8 snowfall days, and 13.94" (354mm) of snow is accumulated.

Daylight

In September, the average length of the day is 12.5h.

Sunshine

In Brownlee, the average sunshine in September is 8.9h.

UV index

The average daily maximum UV index in Brownlee is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in September in Brownlee?

The average high-temperature, in September, in Brownlee, Nebraska, is 75.2°F (24°C), while the average low-temperature is 55.6°F (13.1°C).

What is the least humid month in Brownlee?

The least humid month in Brownlee, Nebraska, is September, with an average relative humidity of 59%.

What is the average humidity in September in Brownlee?

In Brownlee, Nebraska, the average relative humidity in September is 59%.

How many days does it rain in September in Brownlee?

In Brownlee, during September, the rain falls for 10.4 days and regularly aggregates up to 1.46" (37mm) of precipitation.

When does it start snowing in Brownlee?

September is the first month it typically snows in Brownlee, Nebraska. Throughout September, in the average 0.1 snowfall days, it receives 0.24" (6mm) of snow.

How many hours of daylight does Brownlee have in September?

In September, the average length of the day in Brownlee is 12.5h.

How many hours of sunshine does Brownlee have in September?

In Brownlee, the average sunshine in September is 8.9h.

What is the UV index reading in September in Brownlee?

The average daily maximum UV index in September in Brownlee, Nebraska, is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV radiation.

Average temperature in September
Brownlee, NE

Average temperature in September - Brownlee, NE
  • Average high temperature in September: 75.2°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (31.1°F).

  • Average low temperature in September: 55.6°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in September
Brownlee, NE

Average pressure in September - Brownlee, NE
  • Average pressure in September: 29.96"

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

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Average wind speed in September
Brownlee, NE

Average wind speed in September - Brownlee, NE
  • Average wind speed in September: 11.7mph

The windiest month (with the highest average wind speed) is April (13.3mph).
The calmest months (with the lowest average wind speed) are July and August (10.7mph).

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Average humidity in September
Brownlee, NE

Average humidity in September - Brownlee, NE
  • Average humidity in September: 59%

The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is September (59%).

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Average rainfall in September
Brownlee, NE

Average rainfall in September - Brownlee, NE
  • Average rainfall in September: 1.46"

The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.43").

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Average rainfall days in September
Brownlee, NE

Average rainfall days in September - Brownlee, NE
  • Average rainfall days in September: 10.4 days

The month with the highest number of rainy days is May (14.8 days).
Months with the least rainy days are February and December (2.3 days).

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Average snowfall in September
Brownlee, NE

Average snowfall in September - Brownlee, NE
  • Average snowfall in September: 0.24"

The month with the highest snowfall is December (2.99").
Months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Brownlee, NE

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

The month with the highest number of snowfall days is January (9.6 days).
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
Brownlee, NE

Average daylight in September / Average sunshine in September - Brownlee, NE
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in September: 8.9h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is January (Average sunshine: 5.2h).

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Average sunshine days in September
Brownlee, NE

Average sunshine days in September - Brownlee, NE
  • Average sunshine days in September: 16.8 days

The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is June (11.8 days).

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Average UV index in September
Brownlee, NE

Average UV index in September - Brownlee, NE
  • Average UV index in September: 5

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

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Average cloud cover in September
Brownlee, NE

Average cloud cover in September - Brownlee, NE
  • Average cloud cover in September: 23

Months with the most cloud cover are January and February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 22).

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Average visibility in September
Brownlee, NE

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

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

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