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
In Saint Bethlehem, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's hot 86.5°F (30.3°C) to a moderately hot 81°F (27.2°C). Saint Bethlehem encounters a steady low-temperature average of 61.5°F (16.4°C) throughout the month of September.Heat index
The heat index for September is estimated at a hot 86°F (30°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.Understand that the heat index values take into account shaded locations and mild winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
In September, the average relative humidity is 75%.Rainfall
September is the month with the least rainfall in Saint Bethlehem. Rain falls for 13.6 days and accumulates 1.93" (49mm) of precipitation.Snowfall
May through September are months without snowfall in Saint Bethlehem, Tennessee.Daylight
In September, the average length of the day in Saint Bethlehem is 12h and 24min.On the first day of the month, sunrise is at 6:21 am and sunset at 7:16 pm. On the last day of September, sunrise is at 6:44 am and sunset at 6:33 pm CDT.
Sunshine
The average sunshine in September in Saint Bethlehem is 8.8h.UV index
The average daily maximum UV index in September in Saint Bethlehem is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 5 during September translates into these guidelines:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Frequently asked questions
What are September temperatures in Saint Bethlehem?
What is the average humidity in September in Saint Bethlehem?
What is the driest month in Saint Bethlehem?
How many days does it rain in September in Saint Bethlehem?
When it does not snow in Saint Bethlehem?
Does it snow in Saint Bethlehem in September?
How many hours of daylight does Saint Bethlehem have in September?
When are sunrise and sunset in September in Saint Bethlehem?
How long on average sun shines in September in Saint Bethlehem?
How high is the UV index in September in Saint Bethlehem?
Average temperature in September
Saint Bethlehem, TN
- Average high temperature in September: 81°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (42.6°F).
- Average low temperature in September: 61.5°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).
Average pressure in September
Saint Bethlehem, 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
Saint Bethlehem, TN
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is February (8.7mph).
The calmest month (with the lowest average wind speed) is July (5.1mph).
Average humidity in September
Saint Bethlehem, TN
- Average humidity in September: 75%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Saint Bethlehem, TN
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is February (3.78").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Saint Bethlehem, TN
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is November (10.3 days).
Average snowfall in September
Saint Bethlehem, TN
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.02").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Saint Bethlehem, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4 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 Bethlehem, 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 5min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Saint Bethlehem, 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 (10.4 days).
Average UV index in September
Saint Bethlehem, 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 Bethlehem, TN
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in September
Saint Bethlehem, TN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Saint Bethlehem, Tennessee, USA
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