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
Transitioning from August to September involves a subtle drop in average high-temperatures, descending from 85.5°F (29.7°C) to a still warm 80.1°F (26.7°C). Hartsville Junction observes an average low-temperature of 61.3°F (16.3°C) during September.Humidity
In September, the average relative humidity is 77%.Rainfall
In September, the rain falls for 14.6 days. Throughout September, 2.56" (65mm) of precipitation is accumulated. In Hartsville Junction, Tennessee, during the entire year, the rain falls for 176.5 days and collects up to 41.22" (1047mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Hartsville Junction, the average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:17 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:29 pm CDT.
Sunshine
The average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 5 in September leads to these recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Hartsville Junction have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Hartsville Junction, TN
- Average high temperature in September: 80.1°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (42.8°F).
- Average low temperature in September: 61.3°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).
Average pressure in September
Hartsville Junction, TN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Hartsville Junction, TN
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is February (8.2mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).
Average humidity in September
Hartsville Junction, TN
- Average humidity in September: 77%
The months with the highest relative humidity are February, March, May, July and December (79%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Hartsville Junction, TN
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is July (5.2").
The driest month (with the least rainfall) is November (2.28").
Average rainfall days in September
Hartsville Junction, TN
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (10.3 days).
Average snowfall in September
Hartsville Junction, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Hartsville Junction, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.2 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
Hartsville Junction, 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 2min
The months with the most sunshine are June and August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in September
Hartsville Junction, TN
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in September
Hartsville Junction, 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
Hartsville Junction, TN
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 56).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in September
Hartsville Junction, TN
- Average visibility in September: 6mi
The months with the highest visibility are February, April, June, September, October, November and December (6mi).
The months with the lowest visibility are January, March, May, July and August (5mi).
Hartsville Junction, Tennessee, USA
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