September weather forecast
Fort Calhoun, NE

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Weather in September

The first month of the autumn, September, is still a warm month in Fort Calhoun, Nebraska, with an average temperature varying between 76.8°F (24.9°C) and 56.5°F (13.6°C).

Temperature

Start of September brings a slight shift in the average high-temperature, dipping a bit from August's warm 82.9°F (28.3°C) to a still moderately hot 76.8°F (24.9°C). Fort Calhoun witnesses a consistent average low-temperature of 56.5°F (13.6°C) throughout September.

Humidity

In Fort Calhoun, the average relative humidity in September is 71%.

Rainfall

In September, in Fort Calhoun, Nebraska, the rain falls for 11 days. Throughout September, 1.77" (45mm) of precipitation is accumulated. Throughout the year, in Fort Calhoun, there are 115.5 rainfall days, and 19.61" (498mm) of precipitation is accumulated.

Snowfall

In Fort Calhoun, snow does not fall in May through September.

Daylight

The average length of the day in September is 12h and 28min.
On the first day of September, sunrise is at 6:51 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:07 pm CDT.

Sunshine

The average sunshine in September in Fort Calhoun is 8.9h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In September, the maximum UV index of 4 transforms into these recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

What are September temperatures in Fort Calhoun?

Fort Calhoun in September has an average high-temperature of 76.8°F (24.9°C) and an average low-temperature of 56.5°F (13.6°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is computed to be 89.6°F (32°C).

What is the average humidity in September in Fort Calhoun?

In September, the average relative humidity in Fort Calhoun, Nebraska, is 71%.

How many days does it rain in September in Fort Calhoun?

In September, the rain falls for 11 days. Throughout September, 1.77" (45mm) of precipitation is accumulated.

When it does not snow in Fort Calhoun?

May through September are months without snowfall in Fort Calhoun.

Does it snow in Fort Calhoun in September?

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

What is the average length of the day in September in Fort Calhoun?

In Fort Calhoun, the average day length in September is 12h and 28min.

What time are sunrise and sunset in September in Fort Calhoun?

On the first day of September in Fort Calhoun, Nebraska, sunrise is at 6:51 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:07 pm CDT.

How many hours of sunshine does Fort Calhoun have in September?

The average sunshine duration in September in Fort Calhoun is 8.9h.

What is the UV index intensity in September in Fort Calhoun?

In September, the average daily maximum UV index in Fort Calhoun, Nebraska, is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to the Sun's 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
Fort Calhoun, NE

Average temperature in September - Fort Calhoun, NE
  • Average high temperature in September: 76.8°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in September: 56.5°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 (16°F).

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Average pressure in September
Fort Calhoun, NE

Average pressure in September - Fort Calhoun, 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
Fort Calhoun, NE

Average wind speed in September - Fort Calhoun, NE
  • Average wind speed in September: 8.5mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

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Average humidity in September
Fort Calhoun, NE

Average humidity in September - Fort Calhoun, NE
  • Average humidity in September: 71%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is October (66%).

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Average rainfall in September
Fort Calhoun, NE

Average rainfall in September - Fort Calhoun, NE
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is January (0.51").

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Average rainfall days in September
Fort Calhoun, NE

Average rainfall days in September - Fort Calhoun, NE
  • Average rainfall days in September: 11 days

The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is February (3.3 days).

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Average snowfall in September
Fort Calhoun, NE

Average snowfall in September - Fort Calhoun, NE
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.52").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Fort Calhoun, NE

Average snowfall days in September - Fort Calhoun, NE
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Fort Calhoun, NE

Average daylight in September / Average sunshine in September - Fort Calhoun, NE
  • Average daylight in September: 12h and 3min

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 12min).

  • Average sunshine in September: 8h and 5min

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 36min).

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Average sunshine days in September
Fort Calhoun, NE

Average sunshine days in September - Fort Calhoun, NE
  • Average sunshine days in September: 16.9 days

The month with the most sunshine days is November (21.6 days).
The month with the least sunshine days is June (11.8 days).

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Average UV index in September
Fort Calhoun, NE

Average UV index in September - Fort Calhoun, NE
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in September
Fort Calhoun, NE

Average cloud cover in September - Fort Calhoun, NE
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in September
Fort Calhoun, NE

Average visibility in September - Fort Calhoun, 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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Fort Calhoun, Nebraska, USA

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