September weather forecastSpencer, TN
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Spencer, Tennessee, with temperature in the range of an average high of 79.3°F (26.3°C) and an average low of 59°F (15°C).Temperature
September ushers in a minor alteration in Spencer's climate, with the average high-temperature moving from August's moderately hot 84.7°F (29.3°C) to a still warm 79.3°F (26.3°C). In Spencer, September nights witness a steady temperature drop to a mild 59°F (15°C).Humidity
In Spencer, the average relative humidity in September is 78%.Rainfall
In Spencer, Tennessee, during September, the rain falls for 14.8 days and regularly aggregates up to 2.52" (64mm) of precipitation. Throughout the year, there are 183.1 rainfall days, and 37.68" (957mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Spencer.Daylight
In Spencer, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:14 am and sunset at 7:08 pm. On the last day of September, sunrise is at 6:36 am and sunset at 6:26 pm CDT.
Sunshine
In September, the average sunshine in Spencer, Tennessee, is 8.1h.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 unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 5 during September translates into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Spencer, TN
- Average high temperature in September: 79.3°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: 59°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).
Average pressure in September
Spencer, TN
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Spencer, TN
- Average wind speed in September: 4.2mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest months (with the lowest average wind speed) are July and August (4mph).
Average humidity in September
Spencer, TN
- Average humidity in September: 78%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are October and November (77%).
Average rainfall in September
Spencer, TN
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is July (4.45").
The driest month (with the least rainfall) is November (2.01").
Average rainfall days in September
Spencer, TN
- Average rainfall days in September: 14.8 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in September
Spencer, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Spencer, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.7 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
Spencer, TN
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Spencer, TN
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (8.7 days).
Average UV index in September
Spencer, 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 and December (UV index 2).
Average cloud cover in September
Spencer, TN
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility in September
Spencer, TN
- Average visibility in September: 5mi
The months with the highest visibility are June and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October and December (5mi).
