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
With the arrival of September, Valles Mines experiences a modest decline in average high-temperatures, transitioning from a hot 86.5°F (30.3°C) in August to a warm 80.1°F (26.7°C). Throughout September nights, Valles Mines registers an average low-temperature of 59.5°F (15.3°C).Humidity
In September, the average relative humidity in Valles Mines is 74%.Rainfall
In September, the rain falls for 10.3 days. Throughout September, 1.02" (26mm) of precipitation is accumulated. In Valles Mines, during the entire year, the rain falls for 124.5 days and collects up to 16.26" (413mm) of precipitation.Snowfall
In Valles Mines, snow does not fall in April through October.Daylight
In Valles Mines, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:31 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:46 pm CDT.
Sunshine
In September, the average sunshine in Valles Mines is 9.5h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Take precautions - Protection against sunburn is recommended. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Valles Mines have in September?
What time are sunrise and sunset in September in Valles Mines?
How many hours of sunshine does Valles Mines have in September?
What is the UV index intensity in September?
Average temperature in September
Valles Mines, MO
- Average high temperature in September: 80.1°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in September: 59.5°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in September
Valles Mines, 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 (29.92"Hg).
Average wind speed in September
Valles Mines, MO
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Valles Mines, MO
- Average humidity in September: 74%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Valles Mines, MO
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is February (0.75").
Average rainfall days in September
Valles Mines, MO
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in September
Valles Mines, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Valles Mines, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.6 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
Valles Mines, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in September
Valles Mines, MO
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is December (21.6 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in September
Valles Mines, MO
- 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
Valles Mines, MO
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in September
Valles Mines, 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).
Valles Mines, Missouri, USA
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