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
September signals a slight drop in average high-temperature, sliding from August's tropical 88.5°F (31.4°C) to a moderately hot 83.1°F (28.4°C). During the month of September, Red Walnut experiences a steady low-temperature average of 62.8°F (17.1°C).Heat index
During September, the heat index is estimated at a hot 89.6°F (32°C). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.Keep in mind the heat index values are meant for areas in shade and with light wind. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. 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 are especially vital to children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Humidity
The average relative humidity in September in Red Walnut, Tennessee, is 74%.Rainfall
September is the month with the least rainfall. Rain falls for 10 days and accumulates 0.94" (24mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 6:25 am and sunset at 7:19 pm. On the last day of September, in Red Walnut, sunrise is at 6:47 am and sunset at 6:37 pm CDT.
Sunshine
In September, the average sunshine in Red Walnut is 9.1h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a regular UV index of 5 translates into these guidelines:
Undertake precautions - It is suggested to shield oneself from sunburn. Around midday, solar radiation is most harmful; hence, exposure should be limited. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
How hot is September in Red Walnut?
What is the average humidity in September in Red Walnut?
What is the driest month in Red Walnut?
How many days does it rain in September in Red Walnut?
When it does not snow in Red Walnut?
What is the average length of the day in September in Red Walnut?
What time are sunrise and sunset in September in Red Walnut?
How long on average sun shines in September in Red Walnut?
How high is the UV index in September in Red Walnut?
Average temperature in September
Red Walnut, TN
- Average high temperature in September: 83.1°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (45.5°F).
- Average low temperature in September: 62.8°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).
Average pressure in September
Red Walnut, TN
- Average pressure in September: 30.02"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
Red Walnut, TN
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is February (8.2mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in September
Red Walnut, TN
- Average humidity in September: 74%
The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Red Walnut, TN
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is February (1.97").
The driest month (with the least rainfall) is September (0.94").
Average rainfall days in September
Red Walnut, TN
- Average rainfall days in September: 10 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (7.7 days).
Average snowfall in September
Red Walnut, TN
- Average snowfall in September: 0"
The month with the highest snowfall is November (0.35").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Red Walnut, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.3 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
Red Walnut, TN
- Average daylight in September: 12h and 2min
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: 9h and 1min
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 36min).
Average sunshine days in September
Red Walnut, TN
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in September
Red Walnut, TN
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Red Walnut, TN
- Average cloud cover in September: 30
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in September
Red Walnut, TN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are May, July and August (5mi).
Red Walnut, Tennessee, USA
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