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
A modest decline in the average high-temperature is seen during September, decreasing from a tropical 86.2°F (30.1°C) in August to a moderately hot 78.6°F (25.9°C). Sumner receives a consistent average low-temperature of 56.1°F (13.4°C) in September, a substantial dip from the day's heat.Humidity
In Sumner, Nebraska, the average relative humidity in September is 61%.Rainfall
In Sumner, in September, it is raining for 9.8 days, with typically 0.94" (24mm) of accumulated precipitation. Throughout the year, in Sumner, Nebraska, there are 117 rainfall days, and 18.35" (466mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Sumner, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 7:05 am and sunset at 8:09 pm. On the last day of September, in Sumner, sunrise is at 7:34 am and sunset at 7:21 pm CDT.
Sunshine
In September, the average sunshine in Sumner is 9h.UV index
In Sumner, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Frequently asked questions
What are the temperatures in Sumner in September?
What is the average humidity in September in Sumner?
How many days does it rain in September in Sumner?
When it does not snow in Sumner?
Does it snow in Sumner in September?
How many hours of daylight does Sumner have in September?
What time are sunrise and sunset in September in Sumner?
How long on average sun shines in September in Sumner?
How high is the UV index in September in Sumner?
Average temperature in September
Sumner, NE
- Average high temperature in September: 78.6°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (35.8°F).
- Average low temperature in September: 56.1°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in September
Sumner, NE
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Sumner, 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 July (8.8mph).
Average humidity in September
Sumner, NE
- Average humidity in September: 61%
The month with the highest relative humidity is January (75%).
The month with the lowest relative humidity is October (58%).
Average rainfall in September
Sumner, NE
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in September
Sumner, NE
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in September
Sumner, NE
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.62").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Sumner, NE
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sumner, 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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in September
Sumner, NE
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in September
Sumner, 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
Sumner, NE
- Average cloud cover in September: 22
The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 22).
Average visibility in September
Sumner, 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).
Sumner, Nebraska, USA
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