September weather forecastGlenwood, NC
September
Weather in September
September, the first month of the autumn in Glenwood, is still a warm month, with an average temperature ranging between min 57°F (13.9°C) and max 78.6°F (25.9°C).Temperature
With the commencement of September, Glenwood records a moderate temperature decline, with the average high easing from August's 84°F (28.9°C) to a still warm 78.6°F (25.9°C). Nighttime temperature lowers to an average of 57°F (13.9°C) in September.Humidity
In Glenwood, the average relative humidity in September is 76%.Rainfall
In Glenwood, during September, the rain falls for 13.8 days and regularly aggregates up to 1.97" (50mm) of precipitation. In Glenwood, during the entire year, the rain falls for 175.4 days and collects up to 31.3" (795mm) of precipitation.Snowfall
In Glenwood, snow does not fall in May through October.Daylight
In September, the average length of the day in Glenwood is 12h and 23min.On the first day of September in Glenwood, sunrise is at 7:00 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:12 pm EDT.
Sunshine
The average sunshine in September is 8.4h.UV index
In Glenwood, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Glenwood, NC
- Average high temperature in September: 78.6°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (44.2°F).
- Average low temperature in September: 57°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in September
Glenwood, NC
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Glenwood, NC
- Average wind speed in September: 4mph
The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in September
Glenwood, NC
- Average humidity in September: 76%
The months with the highest relative humidity are May and December (77%).
The months with the lowest relative humidity are July and November (73%).
Average rainfall in September
Glenwood, NC
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is June (1.93").
Average rainfall days in September
Glenwood, NC
- Average rainfall days in September: 13.8 days
The months with the highest number of rainy days are May and July (19.3 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in September
Glenwood, NC
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.07").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Glenwood, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Glenwood, 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 48min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Glenwood, NC
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in September
Glenwood, NC
- 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 and December (UV index 2).
Average cloud cover in September
Glenwood, NC
- Average cloud cover in September: 35
The months with the most cloud cover are March and December (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in September
Glenwood, NC
- Average visibility in September: 5mi
The months with the highest visibility are February, June, July, August, October and November (6mi).
The months with the lowest visibility are January, March, April, May, September and December (5mi).





