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
The start of September comes with a small reduction in the average high-temperature, subtly receding from a tropical 87.4°F (30.8°C) in August to a warm 81.3°F (27.4°C). Jamestown throughout September, records an average low-temperature of 62.1°F (16.7°C).Heat index
The average heat index in September is estimated at a tropical 86°F (30°C). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.One should consider that heat index numbers are for shaded settings and light wind. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
In Jamestown, the average relative humidity in September is 74%.Rainfall
In Jamestown, during September, the rain falls for 13.4 days and regularly aggregates up to 2.17" (55mm) of precipitation. In Jamestown, during the entire year, the rain falls for 150.5 days and collects up to 28.82" (732mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Jamestown, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:52 am and sunset at 7:46 pm. On the last day of September, in Jamestown, sunrise is at 7:14 am and sunset at 7:04 pm EDT.
Sunshine
In Jamestown, North Carolina, the average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index in Jamestown is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 5 in September translates into these instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Jamestown in September?
What is the average humidity in September in Jamestown?
How many days does it rain in September in Jamestown?
When it does not snow in Jamestown?
How many hours of daylight does Jamestown have in September?
What time are sunrise and sunset in September in Jamestown?
How long on average sun shines in September in Jamestown?
What is the UV index reading in September in Jamestown?
Average temperature in September
Jamestown, NC
- Average high temperature in September: 81.3°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (46.2°F).
- Average low temperature in September: 62.1°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure in September
Jamestown, NC
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Jamestown, NC
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Jamestown, NC
- Average humidity in September: 74%
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
Jamestown, NC
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is October (1.73").
Average rainfall days in September
Jamestown, NC
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is November (8.4 days).
Average snowfall in September
Jamestown, NC
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.81").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Jamestown, NC
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Jamestown, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in September
Jamestown, NC
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is October (20.4 days).
The month with the least sunshine days is May (12.7 days).
Average UV index in September
Jamestown, 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, February and December (UV index 2).
Average cloud cover in September
Jamestown, NC
- Average cloud cover in September: 38
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility in September
Jamestown, 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).
Jamestown, North Carolina, USA
Weather forecast for your location
2. Allow the app to use your location