September weather forecastMarble Hill, MO
September
Weather in September
The first month of the autumn, September, is still a warm month in Marble Hill, Missouri, with an average temperature varying between 80.8°F (27.1°C) and 60.6°F (15.9°C).Temperature
The start of September involves a subtle temperature drop, shifting from a tropical 86.5°F (30.3°C) in August to a warm 80.8°F (27.1°C). During September, Marble Hill observes a consistent average nighttime temperature of 60.6°F (15.9°C).Heat index
For most parts of September, the heat index is appraised at 84.2°F (29°C). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.Be aware that heat index ratings are designed for shaded locations and minor breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Humidity
In Marble Hill, the average relative humidity in September is 73%.Rainfall
The month with the least rainfall is September, when the rain falls for 11.3 days and typically collects 1.65" (42mm) of precipitation.Snowfall
In Marble Hill, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:55 am and sunset at 6:44 pm CDT.
Sunshine
In Marble Hill, the average sunshine in September is 9.6h.UV index
In Marble Hill, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 5 in September translates into these instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Marble Hill, MO
- Average high temperature in September: 80.8°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41°F).
- Average low temperature in September: 60.6°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in September
Marble Hill, 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
Marble Hill, MO
- Average wind speed in September: 6mph
The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in September
Marble Hill, MO
- Average humidity in September: 73%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Marble Hill, MO
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is April (4.37").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in September
Marble Hill, MO
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in September
Marble Hill, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Marble Hill, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Marble Hill, MO
- Average daylight in September: 12h and 24min
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 36min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 54min).
Average sunshine days in September
Marble Hill, MO
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in September
Marble Hill, 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
Marble Hill, MO
- Average cloud cover in September: 28
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in September
Marble Hill, 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).
