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 registers an average high-temperature of a still moderately hot 73.8°F (23.2°C), closely aligning with the temperature of the previous month. September's average low-temperature reading settles at a fresh 53.8°F (12.1°C).Humidity
The months with the highest humidity are February, March, May, September and December, with an average relative humidity of 80%.Rainfall
In Grandfather, during September, the rain falls for 14.1 days and regularly aggregates up to 1.81" (46mm) of precipitation. Throughout the year, in Grandfather, North Carolina, there are 178.4 rainfall days, and 25.39" (645mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Grandfather, the average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:59 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
In September, the average sunshine is 8.2h.UV index
In Grandfather, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the UV index of 4 transforms into the following advice:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Frequently asked questions
What is the usual temperature for Grandfather in September?
What is the most humid month in Grandfather?
What is the average humidity in September in Grandfather?
How much does it rain in Grandfather in September?
When it does not snow in Grandfather?
Does it snow in Grandfather in September?
How many hours of daylight does Grandfather have in September?
When are sunrise and sunset in September in Grandfather?
How many hours of sunshine does Grandfather have in September?
What is the UV index reading in September in Grandfather?
Average temperature in September
Grandfather, NC
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in September: 53.8°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in September
Grandfather, NC
- Average pressure in September: 30.06"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
Grandfather, NC
- Average wind speed in September: 4mph
The windiest months (with the highest average wind speed) are January and February (7.1mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in September
Grandfather, NC
- Average humidity in September: 80%
The months with the highest relative humidity are February, March, May, September and December (80%).
The months with the lowest relative humidity are June and November (77%).
Average rainfall in September
Grandfather, NC
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is November (1.5").
Average rainfall days in September
Grandfather, NC
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is November (10.6 days).
Average snowfall in September
Grandfather, NC
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Grandfather, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Grandfather, NC
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 8h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in September
Grandfather, NC
- Average sunshine days in September: 12.9 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is July (9 days).
Average UV index in September
Grandfather, NC
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Grandfather, NC
- Average cloud cover in September: 41
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 35).
Average visibility in September
Grandfather, NC
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Grandfather, North Carolina, USA
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