September weather forecastSpencer, NE

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in Spencer, Nebraska, with an average temperature varying between 55.4°F (13°C) and 76.3°F (24.6°C).

Temperature

Spencer in September undergoes a slight reduction in the average high-temperature, shifting from August's moderately hot 85.1°F (29.5°C) to a still warm 76.3°F (24.6°C). In the month of September, the nighttime temperature in Spencer dips to a steady average of 55.4°F (13°C).

Humidity

In September, the average relative humidity is 63%.

Rainfall

In Spencer, in September, during 9.4 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. Throughout the year, there are 104.1 rainfall days, and 14.29" (363mm) of precipitation is accumulated.

Snowfall

In Spencer, snow does not fall in May through September.

Daylight

In Spencer, the average length of the day in September is 12h and 29min.
On the first day of September, sunrise is at 7:00 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:17 pm CDT.

Sunshine

In Spencer, Nebraska, the average sunshine in September is 8.9h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Put precautions into practice - Guidance to elude sunburn is provided. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Updated: Jun 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In September, in Spencer, the average high-temperature is 76.3°F (24.6°C), and the average low-temperature is 55.4°F (13°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is appraised at 91.4°F (33°C).

The average relative humidity in September is 63%.

In Spencer, in September, during 9.4 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

May through September are months without snowfall.

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

The average day length in September is 12h and 29min.

In September, on the first day of the month, sunrise is at 7:00 am and sunset at 8:08 pm. On the last day of the month, in Spencer, Nebraska, sunrise is at 7:31 am and sunset at 7:17 pm CDT.

In September, the average sunshine duration in Spencer is 8.9h.

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Spencer, NE

  • Average high temperature in September: 76.3°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in September: 55.4°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 (13.6°F).

Average pressure in September
Spencer, NE

  • Average pressure in September: 29.96"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
Spencer, NE

  • Average wind speed in September: 9.4mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).

Average humidity in September
Spencer, NE

  • Average humidity in September: 63%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (62%).

Average rainfall in September
Spencer, NE

  • Average rainfall in September: 1.02"

The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is February (0.31").

Average rainfall days in September
Spencer, NE

  • Average rainfall days in September: 9.4 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (2.9 days).

Average snowfall in September
Spencer, NE

  • Average snowfall in September: 0"

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

Average snowfall days in September
Spencer, NE

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

  • Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 8h and 54min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in September
Spencer, NE

  • Average sunshine days in September: 18.4 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is June (12.3 days).

Average UV index in September
Spencer, 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
Spencer, NE

  • Average cloud cover in September: 24

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 23).

Average visibility in September
Spencer, 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).