September weather forecastHarbour, TN
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Harbour, Tennessee, with temperature in the range of an average low of 56.5°F (13.6°C) and an average high of 80.2°F (26.8°C).Temperature
Harbour, Tennessee, experiences a minor change to a still moderately hot 80.2°F (26.8°C) in average high-temperature during September, closely reflecting August. Nighttime temperatures throughout September in Harbour register a significant deviation from the day's highs, averaging at a mild 56.5°F (13.6°C).Humidity
In September, the average relative humidity is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 11.4 days and accumulates 1.02" (26mm) of precipitation.Snowfall
In Harbour, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 7:02 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:15 pm EDT.
Sunshine
In Harbour, the average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum UV index of 5 in September translates into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Harbour, TN
- Average high temperature in September: 80.2°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (42.4°F).
- Average low temperature in September: 56.5°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure in September
Harbour, 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
Harbour, TN
- Average wind speed in September: 4.1mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in September
Harbour, TN
- Average humidity in September: 75%
The months with the highest relative humidity are February and December (79%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in September
Harbour, TN
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is February (3.15").
The driest month (with the least rainfall) is September (1.02").
Average rainfall days in September
Harbour, TN
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in September
Harbour, TN
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Harbour, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.9 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
Harbour, 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 42min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in September
Harbour, TN
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in September
Harbour, TN
- 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
Harbour, TN
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Harbour, TN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and May (5mi).
