September weather forecastBonner, NE
September
Weather in September
September, the first month of the autumn in Bonner, is also a moderately hot month, with an average temperature fluctuating between 76.5°F (24.7°C) and 55°F (12.8°C).Temperature
The onset of September results in a small decrease in the average high-temperature, moderately receding from a warm 84.7°F (29.3°C) in August to a still moderately hot 76.5°F (24.7°C). In Bonner, the average low-temperature during the month of September is a fresh 55°F (12.8°C).Humidity
The average relative humidity in September is 50%.Rainfall
In Bonner, in September, it is raining for 8.3 days, with typically 0.87" (22mm) of accumulated precipitation. In Bonner, during the entire year, the rain falls for 108.7 days and collects up to 15.79" (401mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows in Bonner, Nebraska. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 42.1 snowfall days, and 17.2" (437mm) of snow is accumulated.Daylight
The average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:18 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:34 pm MDT.
Sunshine
In Bonner, Nebraska, the average sunshine in September is 10.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 4 during September translates into the following directions:
Undertake precautions - Obligation exists to protect against skin and eye damage. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Enhance your sun protection with tightly woven, yet airy clothing. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bonner, NE
- Average high temperature in September: 76.5°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is December (34.2°F).
- Average low temperature in September: 55°F
The month with the highest average low temperature is July (64.8°F).
The coldest months (with the lowest average low temperature) are January and December (20.3°F).
Average pressure in September
Bonner, 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
Bonner, NE
- Average wind speed in September: 11.1mph
The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is August (10.1mph).
Average humidity in September
Bonner, NE
- Average humidity in September: 50%
The month with the highest relative humidity is January (73%).
The month with the lowest relative humidity is August (49%).
Average rainfall in September
Bonner, NE
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
Bonner, NE
- Average rainfall days in September: 8.3 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is December (3.1 days).
Average snowfall in September
Bonner, NE
- Average snowfall in September: 0.04"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Bonner, 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
Bonner, 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 12min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).
Average sunshine days in September
Bonner, NE
- Average sunshine days in September: 19 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (12 days).
Average UV index in September
Bonner, NE
- Average UV index in September: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Bonner, NE
- Average cloud cover in September: 19
The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in September
Bonner, 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).
