September weather forecast and climate
Mooresville, MO

The first month of the autumn, September, is also a moderately hot month in Mooresville, Missouri, with average temperature ranging between min 57.9°F (14.4°C) and max 77.9°F (25.5°C).

Temperature

In Mooresville, the average high-temperature marginally drops, from a warm 83.7°F (28.7°C) in August, to a still moderately hot 77.9°F (25.5°C). In September, in Mooresville, the average low-temperature is 57.9°F (14.4°C).

Humidity

The average relative humidity in Mooresville is 75%.

Rainfall

In Mooresville, it is raining for 11.6 days, with typically 2.76" (70mm) of accumulated precipitation. In Mooresville, Missouri, during the entire year, the rain falls for 137.4 days and collects up to 28.82" (732mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Mooresville, the average length of the day is 12.4h.

Sunshine

In Mooresville, the average sunshine is 9.2h.

UV index

In Mooresville, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in September in Mooresville?

The average high-temperature, in September, is 77.9°F (25.5°C), while the average low-temperature is 57.9°F (14.4°C).

What is the average humidity in September in Mooresville?

In September, the average relative humidity in Mooresville is 75%.

How many days does it rain in September in Mooresville?

In Mooresville, in September, during 11.6 rainfall days, 2.76" (70mm) of precipitation is typically accumulated.

Does it snow in Mooresville in September?

In Mooresville, Missouri, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Mooresville?

In Mooresville snow does not fall in June through September.

What is the average length of the day in September in Mooresville?

In September, the average length of the day in Mooresville, Missouri, is 12.4h.

How long on average sun shines in September in Mooresville?

In September, the average sunshine is 9.2h.

How high is the UV index in September in Mooresville?

In Mooresville, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV radiation.
Average temperature in September - Mooresville, MO
  • Average high temperature in September: 25.5°C

The warmest month (with the highest average high temperature) is July (29.3°C).
The month with the lowest average high temperature is January (1°C).

  • Average low temperature in September: 14.4°C

The month with the highest average low temperature is July (19.8°C).
The coldest month (with the lowest average low temperature) is January (-6.4°C).

Average pressure in September - Mooresville, MO
  • Average pressure in September: 1016.4mbar

The month with the highest atmospheric pressure is January (1021.6mbar).
The month with the lowest atmospheric pressure is June (1012.3mbar).

Average wind speed in September - Mooresville, MO
  • Average wind speed in September: 11.5km/h

The windiest month (with the highest average wind speed) is March (15.9km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).

Average humidity in September - Mooresville, MO
  • Average humidity in September: 75%

Months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September - Mooresville, MO
  • Average rainfall in September: 70mm

The wettest month (with the highest rainfall) is May (101mm).
The driest month (with the least rainfall) is February (29mm).

Average rainfall days in September - Mooresville, MO
  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is January (5.5 days).

Average snowfall in September - Mooresville, MO
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (112mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September - Mooresville, MO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Mooresville, MO
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in September: 9.2h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 4.7h).

Average sunshine days in September - Mooresville, MO
  • Average sunshine days in September: 16.8 days

The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is June (11.6 days).

Average UV index in September - Mooresville, MO
  • Average UV index in September: 5

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September - Mooresville, MO
  • Average cloud cover in September: 30

Months with the most cloud cover are January and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in September - Mooresville, MO
  • Average visibility in September: 9km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).