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's climate shows a minor adjustment in average high-temperatures to a still moderately hot 75.6°F (24.2°C) from August's 80.6°F (27°C). Morristown experiences an average low-temperature of 57.9°F (14.4°C) in the month of September.Humidity
In Morristown, the average relative humidity in September is 77%.Rainfall
In September, in Morristown, the rain falls for 12.9 days. Throughout September, 1.85" (47mm) of precipitation is accumulated. In Morristown, during the entire year, the rain falls for 153.4 days and collects up to 26.81" (681mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September in Morristown is 12h and 26min.On the first day of September, sunrise is at 7:11 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 7:26 pm EDT.
Sunshine
In September, the average sunshine in Morristown is 8.3h.UV index
In Morristown, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 4 during September leads to these advisories:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Morristown?
What is the average humidity in September in Morristown?
How much does it rain in Morristown in September?
When it does not snow in Morristown?
How many hours of daylight does Morristown have in September?
When are sunrise and sunset in September in Morristown?
How many hours of sunshine does Morristown have in September?
What is the UV index intensity in September in Morristown?
Average temperature in September
Morristown, IN
- Average high temperature in September: 75.6°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in September: 57.9°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in September
Morristown, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Morristown, IN
- Average wind speed in September: 6.4mph
The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in September
Morristown, IN
- Average humidity in September: 77%
The months with the highest relative humidity are January, July and December (82%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Morristown, IN
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is February (1.69").
Average rainfall days in September
Morristown, IN
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (8 days).
Average snowfall in September
Morristown, IN
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Morristown, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.8 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, IN
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Morristown, IN
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in September
Morristown, IN
- Average UV index in September: 4
The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Morristown, IN
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Morristown, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Morristown, Indiana, USA
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