September weather forecastWatauga, TN
September
Weather in September
September, the first month of the autumn in Watauga, is still a warm month, with temperature in the range of an average high of 76.5°F (24.7°C) and an average low of 53.8°F (12.1°C).Temperature
The transition into September shows a subtle variation to a still warm 76.5°F (24.7°C) from August's 81.7°F (27.6°C) in the average high-temperature. Watauga witnesses a consistent, sharp contrast from the daytime highs, with an average low-temperature of 53.8°F (12.1°C) throughout September.Humidity
In Watauga, Tennessee, the average relative humidity in September is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 15.1 days and typically collects 1.5" (38mm) of precipitation.Snowfall
In Watauga, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 24min.On the first day of September in Watauga, sunrise is at 7:01 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:13 pm EDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Act with care - Obligation to protect against skin and eye damage is highlighted. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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
Average temperature in September
Watauga, TN
- Average high temperature in September: 76.5°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in September: 53.8°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in September
Watauga, TN
- 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
Watauga, TN
- Average wind speed in September: 4.3mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in September
Watauga, TN
- Average humidity in September: 78%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
Watauga, TN
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is February (3.46").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in September
Watauga, TN
- Average rainfall days in September: 15.1 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (11.5 days).
Average snowfall in September
Watauga, TN
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.92").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Watauga, TN
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Watauga, TN
- Average daylight in September: 12h and 24min
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 42min).
- Average sunshine in September: 8h and 30min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in September
Watauga, TN
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in September
Watauga, TN
- Average UV index in September: 4
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Watauga, TN
- Average cloud cover in September: 36
The month with the most cloud cover is February (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Watauga, TN
- 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).





