September weather forecast
Chadron, NE

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Weather in September

September marks the beginning of fall in Chadron, with a noticeable dip in temperature. The month witnesses a decreased rainfall from 1.18" (30mm) to 0.87" (22mm), indicative of the drier autumn season. While the daylight hours are noticeably shorter compared to August, adequate sunshine remains, casting a beautiful hue on the city. The cooler winds bring the smell of autumn leaves and the anticipation of the upcoming fall celebrations. Transitioning into October, temperatures keep falling, and citizens prepare for a significant increase in rainfall.

Temperature

September's arrival comes with a decrease in the average high-temperature, moving from a tropical 86.5°F (30.3°C) in August to a warm 77.5°F (25.3°C). Chadron observes an average low-temperature of 56.7°F (13.7°C) during September nights.

Humidity

The average relative humidity in September is 47%.

Rainfall

In September, the rain falls for 7.3 days. Throughout September, 0.87" (22mm) of precipitation is accumulated. Throughout the year, in Chadron, there are 111.7 rainfall days, and 14.41" (366mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Chadron, Nebraska, are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Chadron, during the entire year, snow falls for 48.2 days and aggregates up to 21.54" (547mm) of snow.

Daylight

In September, the average length of the day in Chadron is 12h and 29min.
On the first day of September, sunrise is at 6:17 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:34 pm MDT.

Sunshine

In Chadron, Nebraska, the average sunshine in September is 10.4h.

UV index

In Chadron, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. When the Sun is at its strongest around midday, find shade and limit exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Frequently asked questions

What is the average September temperature in Chadron?

During September, Chadron experiences an average high-temperature of 77.5°F (25.3°C) and a low-temperature of 56.7°F (13.7°C). The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in August is evaluated at 87.8°F (31°C).

What is the average humidity in September in Chadron?

The average relative humidity in September is 47%.

How many days does it rain in September in Chadron?

In Chadron, Nebraska, in September, it is raining for 7.3 days, with typically 0.87" (22mm) of accumulated precipitation.

When does it start snowing in Chadron?

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

How many hours of daylight does Chadron have in September?

In Chadron, Nebraska, the average day length in September is 12h and 29min.

When are sunrise and sunset in September in Chadron?

On the first day of September, sunrise is at 6:17 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:34 pm MDT.

How many hours of sunshine does Chadron have in September?

In Chadron, the average sunshine duration in September is 10.4h.

How high is the UV index in September in Chadron?

The average daily maximum UV index in September in Chadron is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Chadron, NE

Average temperature in September - Chadron, NE
  • Average high temperature in September: 77.5°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The months with the lowest average high temperature are January and December (33.4°F).

  • Average low temperature in September: 56.7°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).

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Average pressure in September
Chadron, NE

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in September
Chadron, NE

Average wind speed in September - Chadron, NE
  • Average wind speed in September: 10.6mph

The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is August (9.4mph).

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Average humidity in September
Chadron, NE

Average humidity in September - Chadron, NE
  • Average humidity in September: 47%

The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (46%).

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Average rainfall in September
Chadron, NE

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

The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in September
Chadron, NE

Average rainfall days in September - Chadron, NE
  • Average rainfall days in September: 7.3 days

The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is December (3.7 days).

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Average snowfall in September
Chadron, NE

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

The month with the highest snowfall is February (4.25").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Chadron, NE

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

The month with the highest number of snowfall days is February (10.6 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
Chadron, NE

Average daylight in September / Average sunshine in September - Chadron, 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: 10h and 2min

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

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Average sunshine days in September
Chadron, NE

Average sunshine days in September - Chadron, NE
  • Average sunshine days in September: 19.8 days

The months with the most sunshine days are September and December (19.8 days).
The month with the least sunshine days is April (11.6 days).

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Average UV index in September
Chadron, NE

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

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
Chadron, NE

Average cloud cover in September - Chadron, NE
  • Average cloud cover in September: 18

The month with the most cloud cover is February (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 15).

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Average visibility in September
Chadron, NE

Average visibility in September - Chadron, 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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Chadron, Nebraska, USA

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