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
September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's hot 88.3°F (31.3°C) to a moderately hot 82.4°F (28°C). In Cliffside, in September, the average low-temperature is an enjoyable 61.7°F (16.5°C).Heat index
The heat index value during September is appraised at a tropical 87.8°F (31°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.The heat index's values are generally associated with conditions in shade and light breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humidity
In September, the average relative humidity in Cliffside is 73%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.5 days and typically collects 2.01" (51mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day in Cliffside is 12h and 23min.On the first day of the month, sunrise is at 7:00 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:21 am and sunset at 7:11 pm EDT.
Sunshine
In Cliffside, North Carolina, the average sunshine in September is 8.5h.UV index
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 radiation for average individuals.Note: A typical high UV index of 5 in September suggests the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Cliffside have in September?
What is the UV index reading in September?
Average temperature in September
Cliffside, NC
- Average high temperature in September: 82.4°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (47.8°F).
- Average low temperature in September: 61.7°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).
Average pressure in September
Cliffside, NC
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Cliffside, NC
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in September
Cliffside, NC
- Average humidity in September: 73%
The months with the highest relative humidity are May and December (76%).
The month with the lowest relative humidity is July (69%).
Average rainfall in September
Cliffside, NC
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is December (3.5").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in September
Cliffside, NC
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is November (9.8 days).
Average snowfall in September
Cliffside, NC
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.36").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Cliffside, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Cliffside, 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: 8h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Cliffside, NC
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is October (19.7 days).
The month with the least sunshine days is July (10.4 days).
Average UV index in September
Cliffside, NC
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Cliffside, NC
- Average cloud cover in September: 32
The months with the most cloud cover are February, March and December (Cloud cover 41).
The months with the least cloud cover are June and July (Cloud cover 28).
Average visibility in September
Cliffside, 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).
Cliffside, North Carolina, USA
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