September weather forecast
Seymour, MO

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Seymour, Missouri, with an average temperature fluctuating between 79.7°F (26.5°C) and 59.7°F (15.4°C).

Temperature

Seymour's weather subtly changes with the onset of September, barely falling from a tropical 86.2°F (30.1°C) in August to a warm 79.7°F (26.5°C). Seymour experiences an average low-temperature reading of 59.7°F (15.4°C) throughout September.

Humidity

In September, the average relative humidity in Seymour is 74%.

Rainfall

In Seymour, Missouri, during September, the rain falls for 13.4 days and regularly aggregates up to 1.97" (50mm) of precipitation. Throughout the year, in Seymour, there are 159.6 rainfall days, and 36.22" (920mm) of precipitation is accumulated.

Snowfall

June through October are months without snowfall in Seymour.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 6:42 am and sunset at 7:39 pm. On the last day of September, in Seymour, sunrise is at 7:06 am and sunset at 6:55 pm CDT.

Sunshine

In September, the average sunshine is 9.5h.

UV index

In Seymour, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: A typical high UV index of 5 in September suggests the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

What is the temperature in September in Seymour?

In Seymour, in September, the average high-temperature is 79.7°F (26.5°C), and the average low-temperature is 59.7°F (15.4°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 96.8°F (36°C).

What is the average humidity in September in Seymour?

In September, the average relative humidity is 74%.

How much does it rain in Seymour in September?

In September, in Seymour, the rain falls for 13.4 days. Throughout September, 1.97" (50mm) of precipitation is accumulated.

When it does not snow in Seymour?

In Seymour, Missouri, snow does not fall in June through October.

How many hours of daylight does Seymour have in September?

In September, the average day length in Seymour is 12h and 25min.

When are sunrise and sunset in September in Seymour?

On the first day of September in Seymour, sunrise is at 6:42 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:55 pm CDT.

How long on average sun shines in September in Seymour?

The average sunshine duration in September in Seymour, Missouri, is 9.5h.

What is the UV index reading in September in Seymour?

In September, the average daily maximum UV index in Seymour, Missouri, is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to 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
Seymour, MO

Average temperature in September - Seymour, MO
  • Average high temperature in September: 79.7°F

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (41°F).

  • Average low temperature in September: 59.7°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

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Average pressure in September
Seymour, MO

Average pressure in September - Seymour, MO
  • Average pressure in September: 30.03"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).

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Average wind speed in September
Seymour, MO

Average wind speed in September - Seymour, MO
  • Average wind speed in September: 6.5mph

The windiest months (with the highest average wind speed) are January and March (9.5mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).

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Average humidity in September
Seymour, MO

Average humidity in September - Seymour, MO
  • Average humidity in September: 74%

The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in September
Seymour, MO

Average rainfall in September - Seymour, MO
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is May (4.84").
The driest month (with the least rainfall) is January (1.77").

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Average rainfall days in September
Seymour, MO

Average rainfall days in September - Seymour, MO
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall in September
Seymour, MO

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

The month with the highest snowfall is February (3.5").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Seymour, MO

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

The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

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

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 42min).

  • Average sunshine in September: 9h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).

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Average sunshine days in September
Seymour, MO

Average sunshine days in September - Seymour, MO
  • Average sunshine days in September: 14.4 days

The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is May (10.5 days).

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Average UV index in September
Seymour, MO

Average UV index in September - Seymour, 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).

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Average cloud cover in September
Seymour, MO

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

The month with the most cloud cover is March (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 29).

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Average visibility in September
Seymour, MO

Average visibility in September - Seymour, 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).

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Seymour, Missouri, USA

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