Omaha
Nebraska, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Omaha, NE

Holiday lights light up the city of Omaha, Nebraska, at night, under the clear dark sky
Holiday lights light up the city of Omaha, Nebraska, at night, under the clear dark sky
September, the first month of the autumn, in Omaha, is still a warm month, with temperature in the range of an average low of 57°F (13.9°C) and an average high of 76.6°F (24.8°C).

Temperature

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

Humidity

The average relative humidity in Omaha is 72%.

Rainfall

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

Snowfall

In Omaha snow does not fall in June through September.

Daylight

The average length of the day in Omaha is 12.5h.

Sunshine

In Omaha, the average sunshine is 9h.

UV index

The average daily maximum UV index in Omaha is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in September in Omaha?

In September, in Omaha, the average high-temperature is 76.6°F (24.8°C), and the average low-temperature is 57°F (13.9°C).

What is the average humidity in September in Omaha?

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

How many days does it rain in September in Omaha?

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

Does it snow in Omaha in September?

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

When it does not snow in Omaha?

In Omaha snow does not fall in June through September.

How many hours of daylight does Omaha have in September?

The average length of the day in September in Omaha, Nebraska, is 12.5h.

How long on average sun shines in September in Omaha?

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

What is the UV index reading in September in Omaha?

The average daily maximum UV index in September in Omaha, Nebraska, is 5. A UV Index estimate of 3 to 5 represents a medium health risk from the exposure to the Sun's UV radiation.
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).

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%).

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 lowest rainfall) is January (0.59").

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 lowest number of rainy days is February (3 days).

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

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

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).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

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

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.3h).

  • Average sunshine in September: 9h

The month with most sunshine is July (Average sunshine: 10.6h).
The month with least sunshine is January (Average sunshine: 4.7h).

Average UV index in September - Omaha, 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, October, November and December (UV index 2).