September weather forecast
Norman, NC

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Weather in September

September, the first month of the autumn in Norman, is still a warm month, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 82.9°F (28.3°C).

Temperature

During the shift to September, Norman records a mild decrease in average high-temperature, moving from a tropical 88.3°F (31.3°C) in August to a warm 82.9°F (28.3°C). In September, Norman encounters an average low-temperature of 64°F (17.8°C) during the night.

Heat index

Throughout September, the heat index is estimated at a hot 89.6°F (32°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.

Humidity

The average relative humidity in September in Norman is 75%.

Rainfall

In Norman, during September, the rain falls for 13.5 days and regularly aggregates up to 2.68" (68mm) of precipitation. In Norman, during the entire year, the rain falls for 159.1 days and collects up to 30.47" (774mm) of precipitation.

Snowfall

In Norman, snow does not fall in April through October.

Daylight

In September, the average length of the day in Norman, North Carolina, is 12h and 23min.
On the first day of the month, sunrise is at 6:51 am and sunset at 7:45 pm. On the last day of September, in Norman, North Carolina, sunrise is at 7:13 am and sunset at 7:03 pm EDT.

Sunshine

In September, the average sunshine is 9.1h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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Frequently asked questions

Is it hot in Norman during September?

In September, in Norman, the average high-temperature is 82.9°F (28.3°C), and the average low-temperature is 64°F (17.8°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in September is estimated at 89.6°F (32°C).

What is the average humidity in September in Norman?

In September, the average relative humidity in Norman is 75%.

How many days does it rain in September in Norman?

In September, the rain falls for 13.5 days. Throughout September, 2.68" (68mm) of precipitation is accumulated.

When it does not snow in Norman?

In Norman, North Carolina, snow does not fall in April through October.

How many hours of daylight does Norman have in September?

The average day length in September is 12h and 23min.

When are sunrise and sunset in September in Norman?

In September, on the first day of the month, sunrise is at 6:51 am and sunset at 7:45 pm. On the last day of the month, in Norman, North Carolina, sunrise is at 7:13 am and sunset at 7:03 pm EDT.

How many hours of sunshine does Norman have in September?

In September, the average sunshine duration is 9.1h.

How high is the UV index in September in Norman?

In Norman, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Norman, NC

Average temperature in September - Norman, NC
  • Average high temperature in September: 82.9°F

The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (49.3°F).

  • Average low temperature in September: 64°F

The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

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Average pressure in September
Norman, NC

Average pressure in September - Norman, NC
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

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Average wind speed in September
Norman, NC

Average wind speed in September - Norman, NC
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in September
Norman, NC

Average humidity in September - Norman, NC
  • Average humidity in September: 75%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (71%).

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Average rainfall in September
Norman, NC

Average rainfall in September - Norman, NC
  • Average rainfall in September: 2.68"

The wettest month (with the highest rainfall) is August (3.27").
The driest month (with the least rainfall) is October (1.89").

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Average rainfall days in September
Norman, NC

Average rainfall days in September - Norman, NC
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (9.4 days).

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Average snowfall in September
Norman, NC

Average snowfall in September - Norman, NC
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.02").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Norman, NC

Average snowfall days in September - Norman, NC
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Norman, NC

Average daylight in September / Average sunshine in September - Norman, NC
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).

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Average sunshine days in September
Norman, NC

Average sunshine days in September - Norman, NC
  • Average sunshine days in September: 15 days

The month with the most sunshine days is October (20.1 days).
The months with the least sunshine days are July and August (11.4 days).

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Average UV index in September
Norman, NC

Average UV index in September - Norman, NC
  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).

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Average cloud cover in September
Norman, NC

Average cloud cover in September - Norman, NC
  • Average cloud cover in September: 34

The months with the most cloud cover are February, March and December (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in September
Norman, NC

Average visibility in September - Norman, NC
  • 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).

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Norman, North Carolina, USA

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