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 onset introduces a mild reduction in the average high-temperature, from a moderately hot 83.8°F (28.8°C) in August to a still warm 78.3°F (25.7°C). Huntsville's nighttime temperature during September is consistently averaged at a mild 59°F (15°C).Humidity
The average relative humidity in September is 74%.Rainfall
In Huntsville, in September, it is raining for 11.6 days, with typically 2.4" (61mm) of accumulated precipitation. Throughout the year, in Huntsville, there are 134.8 rainfall days, and 27.6" (701mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, September through December. September is the first month it typically snows in Huntsville. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Huntsville, during the entire year, snow falls for 21.2 days and aggregates up to 8.62" (219mm) of snow.Daylight
In Huntsville, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:53 pm CDT.
Sunshine
In September, the average sunshine in Huntsville is 9.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Adopt protective measures - It is advised to guard against sun damage. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How many days does it rain in September?
When does it start snowing?
How many hours of daylight does Huntsville have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Huntsville have in September?
What is the UV index intensity in September?
Average temperature in September
Huntsville, MO
- Average high temperature in September: 78.3°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in September: 59°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in September
Huntsville, MO
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Huntsville, MO
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is March (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.4mph).
Average humidity in September
Huntsville, MO
- Average humidity in September: 74%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Huntsville, MO
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days in September
Huntsville, MO
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in September
Huntsville, MO
- Average snowfall in September: 0.04"
The month with the highest snowfall is January (3.15").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in September
Huntsville, MO
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Huntsville, MO
- 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: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in September
Huntsville, MO
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is December (20.9 days).
The months with the least sunshine days are May and June (12.8 days).
Average UV index in September
Huntsville, MO
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Huntsville, MO
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in September
Huntsville, MO
- 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).
Huntsville, Missouri, USA
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