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
As September unfolds, the average high-temperature reaches a warm 81.7°F (27.6°C), hinting at a slight fluctuation from the previous month. Throughout September, an average nighttime temperature of 62.2°F (16.8°C) is experienced.Heat index
For most parts of September, the heat index is calculated to be a tropical 86°F (30°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
In September, the average relative humidity in Matthews is 72%.Rainfall
September is the month with the least rainfall. Rain falls for 11.8 days and accumulates 1.57" (40mm) of precipitation.Snowfall
In Matthews, snow does not fall in May through September.Daylight
The average length of the day in September in Matthews, Missouri, is 12h and 24min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:26 pm. On the last day of September, in Matthews, sunrise is at 6:53 am and sunset at 6:42 pm CDT.
Sunshine
In September, the average sunshine is 9.7h.UV index
In September, the average daily maximum UV index in Matthews is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 5 during September translates into the following guidance:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
What is the usual temperature for Matthews in September?
What is the average humidity in September in Matthews?
What is the driest month in Matthews?
How many days does it rain in September in Matthews?
When it does not snow in Matthews?
Does it snow in Matthews in September?
What is the average length of the day in September in Matthews?
When is the sunrise / sunset in September in Matthews?
How long on average sun shines in September in Matthews?
What is the UV index intensity in September in Matthews?
Average temperature in September
Matthews, MO
- Average high temperature in September: 81.7°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (41.9°F).
- Average low temperature in September: 62.2°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).
Average pressure in September
Matthews, 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 (29.94"Hg).
Average wind speed in September
Matthews, MO
- Average wind speed in September: 6.4mph
The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in September
Matthews, MO
- Average humidity in September: 72%
The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Matthews, MO
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is April (4.45").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in September
Matthews, MO
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in September
Matthews, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Matthews, 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 and September (0 days).
Average daylight in September /
Average sunshine in September
Matthews, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
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 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Matthews, MO
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in September
Matthews, MO
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Matthews, MO
- Average cloud cover in September: 26
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
Matthews, 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).
Matthews, Missouri, USA
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