September weather forecast
Trumbull, NE

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Weather in September

September, the first month of the autumn in Trumbull, is still a warm month, with an average temperature fluctuating between 78.4°F (25.8°C) and 57.2°F (14°C).

Temperature

September is marked by a subtle drop in average high-temperatures, transitioning from 85.6°F (29.8°C) in August to a still moderately hot 78.4°F (25.8°C). In Trumbull, an average temperature of 57.2°F (14°C) is noted during September nights.

Humidity

In Trumbull, Nebraska, the average relative humidity in September is 65%.

Rainfall

In Trumbull, during September, the rain falls for 12.5 days and regularly aggregates up to 1.5" (38mm) of precipitation. Throughout the year, there are 123 rainfall days, and 21.89" (556mm) of precipitation is accumulated.

Snowfall

In Trumbull, snow does not fall in June through September.

Daylight

In September, the average length of the day in Trumbull is 12h and 27min.
On the first day of September, sunrise is at 7:00 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:16 pm CDT.

Sunshine

The average sunshine in September in Trumbull is 8.5h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 5 in September translates into these instructions:
Exercise prevention - Precautions against solar damage are endorsed. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Trumbull in September?

In Trumbull, in September, the average high-temperature is 78.4°F (25.8°C), and the average low-temperature is 57.2°F (14°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 93.2°F (34°C).

What is the average humidity in September in Trumbull?

The average relative humidity in September in Trumbull, Nebraska, is 65%.

How much does it rain in Trumbull in September?

In Trumbull, in September, during 12.5 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

When it does not snow in Trumbull?

In Trumbull, snow does not fall in June through September.

Does it snow in Trumbull in September?

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

How many hours of daylight does Trumbull have in September?

The average day length in September in Trumbull is 12h and 27min.

When are sunrise and sunset in September in Trumbull?

On the first day of September in Trumbull, sunrise is at 7:00 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 7:16 pm CDT.

How long on average sun shines in September in Trumbull?

The average sunshine duration in September is 8.5h.

What is the UV index intensity in September in Trumbull?

The average daily maximum UV index in September in Trumbull, Nebraska, is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
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
Trumbull, NE

Average temperature in September - Trumbull, NE
  • Average high temperature in September: 78.4°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (34.5°F).

  • Average low temperature in September: 57.2°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).

Average pressure in September
Trumbull, NE

Average pressure in September - Trumbull, NE
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in September
Trumbull, NE

Average wind speed in September - Trumbull, NE
  • Average wind speed in September: 9.8mph

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is July (8.4mph).

Average humidity in September
Trumbull, NE

Average humidity in September - Trumbull, NE
  • Average humidity in September: 65%

The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is October (61%).

Average rainfall in September
Trumbull, NE

Average rainfall in September - Trumbull, NE
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is May (3.58").
The driest months (with the least rainfall) are January and February (0.71").

Average rainfall days in September
Trumbull, NE

Average rainfall days in September - Trumbull, NE
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (16.8 days).
The months with the least rainy days are January and February (3.8 days).

Average snowfall in September
Trumbull, NE

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

The month with the highest snowfall is January (3.07").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Trumbull, NE

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

The month with the highest number of snowfall days is February (8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Trumbull, NE

Average daylight in September / Average sunshine in September - Trumbull, NE
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in September
Trumbull, NE

Average sunshine days in September - Trumbull, NE
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is November (22.4 days).
The month with the least sunshine days is June (10.9 days).

Average UV index in September
Trumbull, NE

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

Average cloud cover in September
Trumbull, NE

Average cloud cover in September - Trumbull, NE
  • Average cloud cover in September: 27

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in September
Trumbull, NE

Average visibility in September - Trumbull, 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).

Trumbull, Nebraska, USA

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