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 beginning of September records an average high-temperature of a still moderately hot 79.9°F (26.6°C), almost echoing the conditions of the previous month. Saint James experiences a significant reduction from daytime highs with an average low-temperature of 57°F (13.9°C) in September.Humidity
In Saint James, the average relative humidity in September is 75%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.9 days and typically collects 1.61" (41mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Saint James, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 7:04 am and sunset at 7:59 pm. On the last day of September, in Saint James, sunrise is at 7:26 am and sunset at 7:16 pm EDT.
Sunshine
In Saint James, the average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index 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 average person.Note: An average UV index of 5 in September transforms into this advice:
Ensure safety - Recommendations to avert sunburn are presented. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Saint James?
What is the average humidity in September in Saint James?
What is the driest month?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September in Saint James?
Average temperature in September
Saint James, TN
- Average high temperature in September: 79.9°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (43.3°F).
- Average low temperature in September: 57°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).
Average pressure in September
Saint James, 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
Saint James, TN
- Average wind speed in September: 3.9mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in September
Saint James, TN
- Average humidity in September: 75%
The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are July, August and November (74%).
Average rainfall in September
Saint James, TN
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is February (3.39").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in September
Saint James, TN
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is November (10.9 days).
Average snowfall in September
Saint James, TN
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.19").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Saint James, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.3 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
Saint James, 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 48min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Saint James, TN
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is February (9.8 days).
Average UV index in September
Saint James, 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
Saint James, TN
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in September
Saint James, TN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Saint James, Tennessee, USA
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