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 is characterized by a slight reduction in average high-temperature, easing from a tropical 87.8°F (31°C) in August to a warm 81.3°F (27.4°C). During September, an average low-temperature of 60.1°F (15.6°C) is observed.Heat index
During September, the heat index is calculated to be a tropical 86°F (30°C). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.When assessing, remember that heat index measurements are for light winds and shaded spots. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', quantifies the warmth felt when relative humidity is considered. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Humidity
In Piedmont, the average relative humidity in September is 74%.Rainfall
The months with the least rainfall are September and December Rain falls for 10.2 days and accumulates 1.26" (32mm) of rain.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:31 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:47 pm CDT.
Sunshine
The average sunshine in September is 9.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum UV index of 5 in September translates into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
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 in Piedmont?
What is the driest month?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Piedmont have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Piedmont have in September?
How high is the UV index in September?
Average temperature in September
Piedmont, MO
- Average high temperature in September: 81.3°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in September: 60.1°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure in September
Piedmont, 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 (29.93"Hg).
Average wind speed in September
Piedmont, MO
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Piedmont, 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 (72%).
Average rainfall in September
Piedmont, MO
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is April (3.03").
The driest months (with the least rainfall) are September and December (1.26").
Average rainfall days in September
Piedmont, MO
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is July (15.7 days).
The months with the least rainy days are January and December (8.1 days).
Average snowfall in September
Piedmont, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.65").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Piedmont, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.8 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
Piedmont, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 4min
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 54min).
Average sunshine days in September
Piedmont, MO
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is July (12 days).
Average UV index in September
Piedmont, 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
Piedmont, MO
- Average cloud cover in September: 30
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in September
Piedmont, MO
- 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).
Piedmont, Missouri, USA
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