September weather forecastVulcan, MO
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Vulcan, Missouri, with an average temperature fluctuating between 60.1°F (15.6°C) and 81.3°F (27.4°C).Temperature
Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a hot 87.8°F (31°C) to a warm 81.3°F (27.4°C). Nighttime temperature lowers to an average of 60.1°F (15.6°C) in September.Heat index
September's average heat index is appraised at a hot 86°F (30°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.Evaluating the heat index requires understanding its values in the shade and with gentle winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
The average relative humidity in September is 74%.Rainfall
September and December are months with the least rain when the rain falls for 10.2 days and typically aggregates up to 1.26" (32mm) of rain.Snowfall
In Vulcan, Missouri, 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 September, sunrise is at 6:33 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:46 pm CDT.
Sunshine
In Vulcan, the average sunshine in September is 9.6h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Vulcan, 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
Vulcan, 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
Vulcan, 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
Vulcan, 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
Vulcan, 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
Vulcan, 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
Vulcan, 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
Vulcan, 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
Vulcan, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Vulcan, 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
Vulcan, 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
Vulcan, 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
Vulcan, 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).
