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
The onset of September results in a small decrease in the average high-temperature, moderately receding from a hot 87.8°F (31°C) in August to a warm 81°F (27.2°C). Throughout September, the temperature tends to fall to a consistent average low of 60.3°F (15.7°C).Heat index
The average heat index in September is computed to be 84.2°F (29°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.The standards for the heat index are set for locations in shade and under light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Humidity
The average relative humidity in September in Shell Knob is 73%.Rainfall
In September, the rain falls for 13.2 days. Throughout September, 2.24" (57mm) of precipitation is accumulated. In Shell Knob, Missouri, during the entire year, the rain falls for 149.2 days and collects up to 33.43" (849mm) of precipitation.Snowfall
In Shell Knob, snow does not fall in June through October.Daylight
The average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:46 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:58 pm CDT.
Sunshine
The average sunshine in September in Shell Knob 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 medium vulnerability from unsafe exposure to UV radiation for the average person.Note: In September, a regular UV index of 5 translates into these guidelines:
Heed the precautions - Suggestions to avoid sunburn are made. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
What is the usual temperature for Shell Knob in September?
What is the average humidity in September in Shell Knob?
How much does it rain in Shell Knob in September?
When it does not snow in Shell Knob?
How many hours of daylight does Shell Knob have in September?
What time are sunrise and sunset in September in Shell Knob?
How long on average sun shines in September in Shell Knob?
What is the UV index intensity in September in Shell Knob?
Average temperature in September
Shell Knob, MO
- Average high temperature in September: 81°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (43.5°F).
- Average low temperature in September: 60.3°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).
Average pressure in September
Shell Knob, MO
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Shell Knob, MO
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in September
Shell Knob, MO
- Average humidity in September: 73%
The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are July, August and October (72%).
Average rainfall in September
Shell Knob, MO
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is May (4.69").
The driest month (with the least rainfall) is February (1.69").
Average rainfall days in September
Shell Knob, MO
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is December (7.2 days).
Average snowfall in September
Shell Knob, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Shell Knob, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Shell Knob, 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 3min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Shell Knob, MO
- Average sunshine days in September: 15 days
The month with the most sunshine days is December (21.3 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in September
Shell Knob, 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
Shell Knob, MO
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are June, July and August (Cloud cover 26).
Average visibility in September
Shell Knob, 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).
Shell Knob, Missouri, USA
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