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 Morristown, the average high-temperature in September gently drops from a warm 85.5°F (29.7°C) in August to a still moderately hot 79.9°F (26.6°C). From significant daily highs, Morristown's nights in September cool down to an average low-temperature of 57.9°F (14.4°C).Humidity
In September, the average relative humidity in Morristown, Tennessee, is 75%.Rainfall
September is the month with the least rainfall in Morristown. Rain falls for 13.3 days and accumulates 1.73" (44mm) of precipitation.Snowfall
In Morristown, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 24min.On the first day of September in Morristown, Tennessee, sunrise is at 7:05 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:17 pm EDT.
Sunshine
In September, the average sunshine in Morristown is 8.8h.UV index
In September, the average daily maximum UV index in Morristown is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Morristown?
What is the average humidity in September in Morristown?
What is the driest month in Morristown?
How much does it rain in Morristown in September?
When it does not snow in Morristown?
Does it snow in Morristown in September?
What is the average length of the day in September in Morristown?
When is the sunrise / sunset in September in Morristown?
How long on average sun shines in September in Morristown?
What is the UV index intensity in September in Morristown?
Average temperature in September
Morristown, TN
- Average high temperature in September: 79.9°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (43.2°F).
- Average low temperature in September: 57.9°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).
Average pressure in September
Morristown, TN
- Average pressure in September: 30.05"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Morristown, TN
- Average wind speed in September: 3.9mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in September
Morristown, TN
- Average humidity in September: 75%
The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Morristown, TN
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is February (3.66").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in September
Morristown, TN
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is November (10.6 days).
Average snowfall in September
Morristown, TN
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.83").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Morristown, 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
Morristown, 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 months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Morristown, TN
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in September
Morristown, 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
Morristown, TN
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 27).
Average visibility in September
Morristown, TN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Morristown, Tennessee, USA
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