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
During the shift to September, a minor reduction in average high-temperature is observed, shifting from a warm 85.6°F (29.8°C) in August to a still moderately hot 78.8°F (26°C). During September, Norman experiences a consistent low-temperature average of 57.4°F (14.1°C).Humidity
In Norman, the average relative humidity in September is 64%.Rainfall
In Norman, in September, during 10.1 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. Throughout the year, there are 105.4 rainfall days, and 18.7" (475mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 27min.On the first day of September in Norman, sunrise is at 7:03 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:18 pm CDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In Norman, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Norman in September?
What is the average humidity in September in Norman?
How much does it rain in Norman in September?
When it does not snow in Norman?
Does it snow in Norman in September?
What is the average length of the day in September in Norman?
When is the sunrise / sunset in September in Norman?
How long on average sun shines in September in Norman?
What is the UV index reading in September in Norman?
Average temperature in September
Norman, NE
- Average high temperature in September: 78.8°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in September: 57.4°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in September
Norman, NE
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Norman, NE
- Average wind speed in September: 10mph
The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is July (8.6mph).
Average humidity in September
Norman, NE
- Average humidity in September: 64%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is October (60%).
Average rainfall in September
Norman, NE
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in September
Norman, NE
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (1.4 days).
Average snowfall in September
Norman, NE
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.48").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Norman, NE
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Norman, NE
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Norman, NE
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in September
Norman, 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
Norman, NE
- Average cloud cover in September: 26
The month with the most cloud cover is February (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in September
Norman, 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).
Norman, Nebraska, USA
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