September weather forecastScottsbluff, NE
September
Weather in September
By September, Scottsbluff begins to cool down, thus indicating the approaching autumn season. Daily sunshine hours slowly decrease, while rainfall continues its steady descent. Interestingly, this month registers a minimum snowfall of 0.08" (2mm), pointing towards the shift in weather. Meanwhile, humidity levels remain relatively constant in anticipation of the following fall month. Scottsbluff residents can witness daytime temperatures falling appreciably from the highs of summer, while evenings become noticeably cooler.Temperature
The beginning of September in Scottsbluff brings a minor change in the average high-temperature, shifting from 85.5°F (29.7°C) in August to a still moderately hot 77.5°F (25.3°C). Scottsbluff encounters a significant temperature differential, with an average low-temperature of 54.1°F (12.3°C) during September nights.Humidity
The months with the lowest humidity in Scottsbluff are August and September, with an average relative humidity of 47%.Rainfall
In Scottsbluff, in September, it is raining for 8.6 days, with typically 0.83" (21mm) of accumulated precipitation. Throughout the year, there are 110.2 rainfall days, and 14.8" (376mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, in Scottsbluff, there are 39.7 snowfall days, and 17.36" (441mm) of snow is accumulated.Daylight
In Scottsbluff, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:21 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:51 am and sunset at 6:37 pm MDT.
Sunshine
The average sunshine in September in Scottsbluff is 10.5h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 4 during September leads to these instructions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Scottsbluff, NE
- Average high temperature in September: 77.5°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is December (35.8°F).
- Average low temperature in September: 54.1°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).
Average pressure in September
Scottsbluff, NE
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Scottsbluff, NE
- Average wind speed in September: 9.9mph
The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).
Average humidity in September
Scottsbluff, NE
- Average humidity in September: 47%
The month with the highest relative humidity is January (69%).
The months with the lowest relative humidity are August and September (47%).
Average rainfall in September
Scottsbluff, NE
- Average rainfall in September: 0.83"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
Scottsbluff, NE
- Average rainfall days in September: 8.6 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is December (3.5 days).
Average snowfall in September
Scottsbluff, NE
- Average snowfall in September: 0.08"
The month with the highest snowfall is February (2.99").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Scottsbluff, NE
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Scottsbluff, NE
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 10h and 30min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).
Average sunshine days in September
Scottsbluff, NE
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in September
Scottsbluff, NE
- Average UV index in September: 4
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
Scottsbluff, NE
- Average cloud cover in September: 18
The month with the most cloud cover is February (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in September
Scottsbluff, 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).
