September weather forecast
Fairbury, NE

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Weather in September

September marks the onset of autumn in Fairbury, bringing in cooler temperatures and increasingly shorter days. The temperature takes a steep turn from the August high of 85.5°F (29.7°C) to a more moderate range of 58.3°F (14.6°C) to 78.3°F (25.7°C), making the atmosphere more comfortable. However, the rainfall sees a slight decrease, soothing the transition from summer to fall. The wind starts picking up its pace again, signifying skies preparing to welcome October's chill. The decrease in UV index points towards leaner sunlight hours and fewer scorching hot days.

Temperature

With the onset of September, the average high-temperature subtly recedes from August's warm 85.5°F (29.7°C) to a still moderately hot 78.3°F (25.7°C). In the month of September, an average of 58.3°F (14.6°C) marks the low-temperature.

Humidity

In September, the average relative humidity is 69%.

Rainfall

In Fairbury, in September, it is raining for 11.5 days, with typically 1.93" (49mm) of accumulated precipitation. Throughout the year, there are 114.7 rainfall days, and 19.65" (499mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Fairbury, Nebraska, the average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:57 am and sunset at 7:59 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:12 pm CDT.

Sunshine

In September, the average sunshine is 8.8h.

UV index

In Fairbury, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Undertake precautions - It is suggested to shield oneself from sunburn. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.

Frequently asked questions

What is the average September temperature?

The high-temperature, in September, in Fairbury, is 78.3°F (25.7°C), while the low-temperature averages to 58.3°F (14.6°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 95°F (35°C).

What is the average humidity in September?

In September, the average relative humidity is 69%.

How many days does it rain in September?

In Fairbury, during September, the rain falls for 11.5 days and regularly aggregates up to 1.93" (49mm) of precipitation.

When it does not snow?

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

Does it snow in September?

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

How many hours of daylight does Fairbury have in September?

In September, the average day length in Fairbury is 12h and 26min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:57 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:12 pm CDT.

How many hours of sunshine does Fairbury have in September?

In Fairbury, the average sunshine duration in September is 8.8h.

What is the UV index reading in September?

In Fairbury, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
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
Fairbury, NE

Average temperature in September - Fairbury, NE
  • Average high temperature in September: 78.3°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in September: 58.3°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

Average pressure in September
Fairbury, NE

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in September
Fairbury, NE

Average wind speed in September - Fairbury, NE
  • Average wind speed in September: 9.3mph

The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest months (with the lowest average wind speed) are July and August (8mph).

Average humidity in September
Fairbury, NE

Average humidity in September - Fairbury, NE
  • Average humidity in September: 69%

The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is October (63%).

Average rainfall in September
Fairbury, NE

Average rainfall in September - Fairbury, NE
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is February (0.51").

Average rainfall days in September
Fairbury, NE

Average rainfall days in September - Fairbury, NE
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is February (3.2 days).

Average snowfall in September
Fairbury, NE

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

The month with the highest snowfall is January (1.93").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Fairbury, NE

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

The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Fairbury, 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 24min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).

Average sunshine days in September
Fairbury, NE

Average sunshine days in September - Fairbury, NE
  • Average sunshine days in September: 15.9 days

The month with the most sunshine days is November (22.9 days).
The month with the least sunshine days is May (12.8 days).

Average UV index in September
Fairbury, NE

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

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Fairbury, NE

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

The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is July (Cloud cover 24).

Average visibility in September
Fairbury, NE

Average visibility in September - Fairbury, 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).

Fairbury, Nebraska, USA

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