Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's warm 83.5°F (28.6°C) to a still moderately hot 76.8°F (24.9°C). An average low-temperature of 56.7°F (13.7°C) is anticipated throughout the nights during September.Humidity
In September, the average relative humidity is 69%.Rainfall
In Shelby, in September, it is raining for 11.5 days, with typically 1.54" (39mm) of accumulated precipitation. Throughout the year, there are 112.4 rainfall days, and 18.62" (473mm) of precipitation is accumulated.Snowfall
In Shelby, snow does not fall in June through September.Daylight
In Shelby, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:57 am and sunset at 8:01 pm. On the last day of September, sunrise is at 7:26 am and sunset at 7:12 pm CDT.
Sunshine
In Shelby, the average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In September, the UV index of 5 transforms into the following advice:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Shelby, NE
- Average high temperature in September: 76.8°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in September: 56.7°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 (17.1°F).
Average pressure in September
Shelby, 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
Shelby, NE
- Average wind speed in September: 9mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in September
Shelby, NE
- Average humidity in September: 69%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is October (64%).
Average rainfall in September
Shelby, NE
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in September
Shelby, NE
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in September
Shelby, NE
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.68").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Shelby, NE
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Shelby, 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 18min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Shelby, NE
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is November (23.2 days).
The month with the least sunshine days is June (12.6 days).
Average UV index in September
Shelby, 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
Shelby, NE
- Average cloud cover in September: 27
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in September
Shelby, 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).
Shelby, Nebraska, USA
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