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
A mild shift in the average high-temperature occurs in September, reducing from a hot 88.3°F (31.3°C) in August to a moderately hot 82.4°F (28°C). The average temperature during September nights dips to a refreshing 62.6°F (17°C).Heat index
Throughout September, the heat index is computed to be a tropical 87.8°F (31°C). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.Realize that the values for the heat index are set for shaded places and light winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
In Holladay, the average relative humidity in September is 74%.Rainfall
The month with the least rainfall in Holladay, Tennessee, is September, when the rain falls for 10.1 days and typically collects 0.75" (19mm) of precipitation.Snowfall
April through October are months without snowfall in Holladay.Daylight
The average length of the day in September is 12h and 23min.On the first day of September in Holladay, sunrise is at 6:25 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:37 pm CDT.
Sunshine
The average sunshine in September in Holladay is 9h.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 ordinary individuals.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Holladay during September?
What is the average humidity in September in Holladay?
What is the driest month in Holladay?
How much does it rain in Holladay in September?
When it does not snow in Holladay?
How many hours of daylight does Holladay have in September?
When are sunrise and sunset in September in Holladay?
How many hours of sunshine does Holladay have in September?
How high is the UV index in September in Holladay?
Average temperature in September
Holladay, TN
- Average high temperature in September: 82.4°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 (44.6°F).
- Average low temperature in September: 62.6°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure in September
Holladay, 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
Holladay, TN
- Average wind speed in September: 5.5mph
The windiest months (with the highest average wind speed) are February and April (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in September
Holladay, 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 (72%).
Average rainfall in September
Holladay, TN
- Average rainfall in September: 0.75"
The wettest month (with the highest rainfall) is May (2.17").
The driest month (with the least rainfall) is September (0.75").
Average rainfall days in September
Holladay, TN
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Holladay, TN
- Average snowfall in September: 0"
The month with the highest snowfall is March (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Holladay, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.3 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Holladay, 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: 9h and 0min
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
Holladay, TN
- Average sunshine days in September: 18.5 days
The months with the most sunshine days are January and October (20.3 days).
The month with the least sunshine days is May (14.3 days).
Average UV index in September
Holladay, 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 February and December (UV index 2).
Average cloud cover in September
Holladay, TN
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in September
Holladay, 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).
Holladay, Tennessee, USA
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