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
Unicoi marks the start of September with an average high-temperature of a still moderately hot 76.1°F (24.5°C), hinting at a slight fluctuation from August's 81°F (27.2°C). In September, the nighttime temperature in Unicoi plummets remarkably from the daily apex to a steady average of 54°F (12.2°C).Humidity
The average relative humidity in September is 79%.Rainfall
September is the month with the least rainfall in Unicoi. Rain falls for 14.8 days and accumulates 1.69" (43mm) of precipitation.Snowfall
In Unicoi, snow does not fall in May through September.Daylight
In Unicoi, Tennessee, the average length of the day in September is 12h and 24min.On the first day of September, 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 7:14 pm EDT.
Sunshine
In September, the average sunshine in Unicoi is 8.5h.UV index
In Unicoi, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Heed the precautions - Suggestions to avoid sunburn are made. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Frequently asked questions
What is the average September temperature in Unicoi?
What is the average humidity in September in Unicoi?
What is the driest month in Unicoi?
How many days does it rain in September in Unicoi?
When it does not snow in Unicoi?
Does it snow in Unicoi in September?
How many hours of daylight does Unicoi have in September?
When are sunrise and sunset in September in Unicoi?
How long on average sun shines in September in Unicoi?
What is the UV index intensity in September in Unicoi?
Average temperature in September
Unicoi, TN
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (41.7°F).
- Average low temperature in September: 54°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in September
Unicoi, TN
- 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
Unicoi, TN
- Average wind speed in September: 3.9mph
The windiest months (with the highest average wind speed) are January, February and April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in September
Unicoi, TN
- Average humidity in September: 79%
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
Unicoi, TN
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in September
Unicoi, TN
- Average rainfall days in September: 14.8 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in September
Unicoi, TN
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.7").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Unicoi, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Unicoi, TN
- 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 42min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Unicoi, TN
- Average sunshine days in September: 12.7 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is July (8.3 days).
Average UV index in September
Unicoi, TN
- Average UV index in September: 4
The months with the highest UV index are June 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
Unicoi, TN
- Average cloud cover in September: 37
The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are June and August (Cloud cover 34).
Average visibility in September
Unicoi, TN
- Average visibility in September: 5mi
The month with the highest visibility is November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October and December (5mi).
Unicoi, Tennessee, USA
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