September weather forecastMonroe, NC
September
Weather in September
September in Monroe brings in the beautiful fall season. The average high temperatures drop to a comfortable 82.4°F (28°C). This cooling pattern signifies the withdrawal of the summer heat, making outdoor activities even more enjoyable. The days start getting shorter, yet sufficient daylight remains to appreciate the vibrant fall foliage. With significantly reduced rainfall, clear skies dominate, revealing a beautiful canvas of sunset hues towards the end of the day.Temperature
In September, the meteorological conditions change slightly, with the average high-temperature moving from a hot 88°F (31.1°C) in August to a warm 82.4°F (28°C). The average low-temperature during September nights is a refreshing 64°F (17.8°C).Heat index
Throughout September, the heat index is appraised at a hot 87.8°F (31°C). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
In September, the average relative humidity is 74%.Rainfall
In Monroe, in September, during 10.5 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, in Monroe, there are 133.5 rainfall days, and 17.05" (433mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:55 am and sunset at 7:48 pm. On the last day of September, in Monroe, sunrise is at 7:16 am and sunset at 7:07 pm EDT.
Sunshine
In September, the average sunshine in Monroe is 8.7h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Monroe, NC
- Average high temperature in September: 82.4°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (49.6°F).
- Average low temperature in September: 64°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).
Average pressure in September
Monroe, 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).
Average wind speed in September
Monroe, NC
- Average wind speed in September: 5.6mph
The windiest months (with the highest average wind speed) are February and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Monroe, NC
- Average humidity in September: 74%
The months with the highest relative humidity are May and December (75%).
The months with the lowest relative humidity are June, July and November (71%).
Average rainfall in September
Monroe, NC
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is August (2.36").
The driest month (with the least rainfall) is October (0.98").
Average rainfall days in September
Monroe, NC
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is October (6.9 days).
Average snowfall in September
Monroe, NC
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Monroe, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1 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
Monroe, NC
- Average daylight in September: 12h and 24min
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 54min).
- Average sunshine in September: 8h and 42min
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 18min).
Average sunshine days in September
Monroe, NC
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is October (23.2 days).
The months with the least sunshine days are July and August (13.6 days).
Average UV index in September
Monroe, 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).
Average cloud cover in September
Monroe, NC
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Monroe, 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).
