September weather forecast
Omaha, NE

Holiday lights light up the city of Omaha, Nebraska
Holiday lights light up the city of Omaha, Nebraska

Weather in September

September, the first month of the autumn in Omaha, is still a warm month, with an average temperature fluctuating between 76.6°F (24.8°C) and 57°F (13.9°C).

Temperature

In September, the average high-temperature slightly decreases from 82.6°F (28.1°C) in August to a still warm 76.6°F (24.8°C). In September, in Omaha, the average low-temperature is 57°F (13.9°C).

Humidity

The average relative humidity in September is 72%.

Rainfall

In Omaha, during 12 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. Throughout the year, there are 122.5 rainfall days, and 22.52" (572mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Omaha.

Daylight

In Omaha, the average length of the day in September is 12h and 28min.
On the first day of September in Omaha, sunrise is at 6:50 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:07 pm CDT.

Sunshine

The average sunshine in September in Omaha is 9h.

UV index

In Omaha, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the average humidity in September in Omaha?

The average relative humidity in September in Omaha, Nebraska, is 72%.

How much does it rain in Omaha in September?

In Omaha, in September, during 12 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

When it does not snow in Omaha?

In Omaha, Nebraska, snow does not fall in June through September.

Does it snow in Omaha in September?

In Omaha, in September, it doesn't snow. In October, it regularly snows.

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

The average day length in September in Omaha, Nebraska, is 12h and 28min.

When is the sunrise / sunset in September in Omaha?

On the first day of September in Omaha, sunrise is at 6:50 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:07 pm CDT.

How many hours of sunshine does Omaha have in September?

In Omaha, Nebraska, the average sunshine duration in September is 9h.

How high is the UV index in September in Omaha?

In September, the average daily maximum UV index in Omaha, Nebraska, is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Omaha, NE

Average temperature in September - Omaha, NE
  • Average high temperature in September: 76.6°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 (30°F).

  • Average low temperature in September: 57°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 (16.3°F).

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Average pressure in September
Omaha, NE

Average pressure in September - Omaha, NE
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in September
Omaha, NE

Average wind speed in September - Omaha, NE
  • Average wind speed in September: 8.3mph

The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest month (with the lowest average wind speed) is July (7mph).

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Average humidity in September
Omaha, NE

Average humidity in September - Omaha, NE
  • Average humidity in September: 72%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is October (66%).

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Average rainfall in September
Omaha, NE

Average rainfall in September - Omaha, NE
  • Average rainfall in September: 2.09"

The wettest month (with the highest rainfall) is June (3.86").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days in September
Omaha, NE

Average rainfall days in September - Omaha, NE
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (3 days).

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Average snowfall in September
Omaha, NE

Average snowfall in September - Omaha, NE
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.56").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Omaha, NE

Average snowfall days in September - Omaha, NE
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.8 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
Omaha, NE

Average daylight in September / Average sunshine in September - Omaha, NE
  • Average daylight in September: 12h and 28min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 16min).

  • Average sunshine in September: 9h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

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Average sunshine days in September
Omaha, NE

Average sunshine days in September - Omaha, NE
  • Average sunshine days in September: 16.6 days

The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (10.9 days).

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Average UV index in September
Omaha, NE

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

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, October, November and December (UV index 2).

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Average cloud cover in September
Omaha, NE

Average cloud cover in September - Omaha, NE
  • Average cloud cover in September: 28

The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in September
Omaha, NE

Average visibility in September - Omaha, 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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