September weather forecast
Excello, MO

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Excello, Missouri, with an average temperature fluctuating between 77.4°F (25.2°C) and 57.7°F (14.3°C).

Temperature

The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a moderately hot 83.1°F (28.4°C) in August to a still warm 77.4°F (25.2°C). Excello records a steady low-temperature average of 57.7°F (14.3°C) during September.

Humidity

The average relative humidity in September is 75%.

Rainfall

In Excello, in September, it is raining for 11.5 days, with typically 2.56" (65mm) of accumulated precipitation. Throughout the year, there are 136.5 rainfall days, and 27.36" (695mm) of precipitation is accumulated.

Snowfall

In Excello, snow does not fall in May through September.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:38 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:53 pm CDT.

Sunshine

In Excello, the average sunshine in September is 9.3h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Exercise prevention - Precautions against solar damage are endorsed. To guard against the harmful effects of the Sun, minimize exposure during midday. Experience reduced UV exposure by about half when donning a wide-brim hat. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

What is the temperature in September?

September temperatures vary between a high-temperature of 77.4°F (25.2°C) and a low-temperature of 57.7°F (14.3°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, is appraised at 91.4°F (33°C).

What is the average humidity in September?

In September, the average relative humidity is 75%.

How many days does it rain in September?

In Excello, during September, the rain falls for 11.5 days and regularly aggregates up to 2.56" (65mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Excello have in September?

In September, the average day length is 12h and 26min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:38 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:53 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 9.3h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Excello, MO

Average temperature in September - Excello, MO
  • Average high temperature in September: 77.4°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in September: 57.7°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

Average pressure in September
Excello, MO

Average pressure in September - Excello, 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 (29.9"Hg).

Average wind speed in September
Excello, MO

Average wind speed in September - Excello, MO
  • Average wind speed in September: 7.3mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in September
Excello, MO

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

The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Excello, MO

Average rainfall in September - Excello, MO
  • Average rainfall in September: 2.56"

The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is January (1.26").

Average rainfall days in September
Excello, MO

Average rainfall days in September - Excello, MO
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is January (5.3 days).

Average snowfall in September
Excello, MO

Average snowfall in September - Excello, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is January (4.06").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Excello, MO

Average snowfall days in September - Excello, MO
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are May, June, July and August (0 days).

Average daylight in September /
Average sunshine in September
Excello, MO

Average daylight in September / Average sunshine in September - Excello, MO
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in September
Excello, MO

Average sunshine days in September - Excello, MO
  • Average sunshine days in September: 16.7 days

The month with the most sunshine days is December (19.9 days).
The month with the least sunshine days is June (11.1 days).

Average UV index in September
Excello, MO

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

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

Average cloud cover in September
Excello, MO

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

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in September
Excello, MO

Average visibility in September - Excello, 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).

Excello, Missouri, USA

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