September weather forecast
Longtown, MO

Weather in September

September, the first month of the autumn in Longtown, is still a warm month, with temperature in the range of an average low of 59.9°F (15.5°C) and an average high of 80.1°F (26.7°C).

Temperature

In Longtown, the average high-temperature in September marginally drops from a tropical 86.2°F (30.1°C) in August to a moderately hot 80.1°F (26.7°C). In Longtown, the average low-temperature is 59.9°F (15.5°C).

Humidity

The average relative humidity in September is 74%.

Rainfall

The month with the least rainfall is September, when the rain falls for 8.6 days and typically collects 0.43" (11mm) of precipitation.

Snowfall

In Longtown, snow does not fall in April through September.

Daylight

The average length of the day in September in Longtown, Missouri, is 12h and 25min.
On the first day of September, sunrise is at 6:29 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:44 pm CDT.

Sunshine

The average sunshine in September in Longtown is 9.4h.

UV index

In September, the average daily maximum UV index in Longtown is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Longtown?

The average high-temperature, in September, is 80.1°F (26.7°C), while the average low-temperature is 59.9°F (15.5°C). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in August is estimated at 98.6°F (37°C).

What is the average humidity in September in Longtown?

The average relative humidity in September in Longtown is 74%.

What is the driest month in Longtown?

September is the month with the least rainfall in Longtown, Missouri. Rain falls for 8.6 days and accumulates 0.43" (11mm) of precipitation.

How many days does it rain in September in Longtown?

In Longtown, Missouri, in September, during 8.6 rainfall days, 0.43" (11mm) of precipitation is typically accumulated.

When it does not snow in Longtown?

April through September are months without snowfall in Longtown, Missouri.

Does it snow in Longtown in September?

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

How many hours of daylight does Longtown have in September?

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

When is the sunrise / sunset in September in Longtown?

In September, on the first day of the month, sunrise is at 6:29 am and sunset at 7:28 pm. On the last day of the month, in Longtown, sunrise is at 6:53 am and sunset at 6:44 pm CDT.

How long on average sun shines in September in Longtown?

In September, the average sunshine duration in Longtown is 9.4h.

What is the UV index intensity in September in Longtown?

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

Average temperature in September
Longtown, MO

Average temperature in September - Longtown, MO
  • Average high temperature in September: 80.1°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 (39.4°F).

  • Average low temperature in September: 59.9°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 (26.1°F).

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Average pressure in September
Longtown, MO

Average pressure in September - Longtown, 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 (29.93"Hg).

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Average wind speed in September
Longtown, MO

Average wind speed in September - Longtown, MO
  • Average wind speed in September: 5.9mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in September
Longtown, MO

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

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in September
Longtown, MO

Average rainfall in September - Longtown, MO
  • Average rainfall in September: 0.43"

The wettest months (with the highest rainfall) are April and May (1.22").
The driest month (with the least rainfall) is September (0.43").

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Average rainfall days in September
Longtown, MO

Average rainfall days in September - Longtown, MO
  • Average rainfall days in September: 8.6 days

The month with the highest number of rainy days is July (13.4 days).
The month with the least rainy days is January (5.9 days).

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Average snowfall in September
Longtown, MO

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

The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August and September (0").

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Average snowfall days in September
Longtown, MO

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

The month with the highest number of snowfall days is January (3.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Longtown, MO
  • Average daylight in September: 12h and 25min

The month with the longest days is June (Average daylight: 14h and 44min).
The month with the shortest days is December (Average daylight: 9h and 37min).

  • Average sunshine in September: 9h and 24min

The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 48min).

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Average sunshine days in September
Longtown, MO

Average sunshine days in September - Longtown, MO
  • Average sunshine days in September: 18.7 days

The month with the most sunshine days is October (21.9 days).
The month with the least sunshine days is July (13.5 days).

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Average UV index in September
Longtown, MO

Average UV index in September - Longtown, 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).

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Average cloud cover in September
Longtown, MO

Average cloud cover in September - Longtown, MO
  • Average cloud cover in September: 28

The months with the most cloud cover are January and February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 27).

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Average visibility in September
Longtown, MO

Average visibility in September - Longtown, 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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