September weather forecast
Farmington, MO

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Weather in September

The first month of the autumn, September, is still a warm month in Farmington, Missouri, with an average temperature fluctuating between 59°F (15°C) and 79.9°F (26.6°C).

Temperature

September's onset brings a negligible change in high-temperatures, falling from a tropical 86.5°F (30.3°C) in August to a warm 79.9°F (26.6°C). September witnesses an average nighttime temperature of 59°F (15°C) in Farmington.

Humidity

The average relative humidity in September in Farmington is 75%.

Rainfall

September is the month with the least rainfall in Farmington. Rain falls for 12.6 days and accumulates 1.77" (45mm) of precipitation.

Snowfall

In Farmington, snow does not fall in April through October.

Daylight

In September, the average length of the day in Farmington is 12h and 25min.
On the first day of the month, sunrise is at 6:32 am and sunset at 7:30 pm. On the last day of September, in Farmington, sunrise is at 6:57 am and sunset at 6:45 pm CDT.

Sunshine

The average sunshine in September in Farmington is 9.4h.

UV index

In Farmington, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
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Frequently asked questions

What are the temperatures in Farmington in September?

September temperatures in Farmington, Missouri, vary between a high-temperature of 79.9°F (26.6°C) and a low-temperature of 59°F (15°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 98.6°F (37°C).

What is the average humidity in September in Farmington?

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

What is the driest month in Farmington?

September is the month with the least rainfall in Farmington, Missouri. Rain falls for 12.6 days and accumulates 1.77" (45mm) of precipitation.

How many days does it rain in September in Farmington?

In Farmington, in September, it is raining for 12.6 days, with typically 1.77" (45mm) of accumulated precipitation.

When it does not snow in Farmington?

In Farmington, snow does not fall in April through October.

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

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

When is the sunrise / sunset in September in Farmington?

In September, on the first day of the month, sunrise is at 6:32 am and sunset at 7:30 pm. On the last day of the month, in Farmington, sunrise is at 6:57 am and sunset at 6:45 pm CDT.

How long on average sun shines in September in Farmington?

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

What is the UV index reading in September in Farmington?

The average daily maximum UV index in September in Farmington is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Farmington, MO

Average temperature in September - Farmington, MO
  • Average high temperature in September: 79.9°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 (39.6°F).

  • Average low temperature in September: 59°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

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Average pressure in September
Farmington, MO

Average pressure in September - Farmington, 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
Farmington, MO

Average wind speed in September - Farmington, MO
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in September
Farmington, MO

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

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in September
Farmington, MO

Average rainfall in September - Farmington, MO
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days in September
Farmington, MO

Average rainfall days in September - Farmington, MO
  • Average rainfall days in September: 12.6 days

The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in September
Farmington, MO

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

The month with the highest snowfall is February (2.56").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Farmington, MO

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

The month with the highest number of snowfall days is January (5.1 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
Farmington, MO

Average daylight in September / Average sunshine in September - Farmington, 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 36min).

  • Average sunshine in September: 9h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 48min).

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Average sunshine days in September
Farmington, MO

Average sunshine days in September - Farmington, MO
  • Average sunshine days in September: 15.3 days

The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is July (11.4 days).

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Average UV index in September
Farmington, MO

Average UV index in September - Farmington, 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, November and December (UV index 2).

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Average cloud cover in September
Farmington, MO

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

The months with the most cloud cover are January, February and March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 29).

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Average visibility in September
Farmington, MO

Average visibility in September - Farmington, MO
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are May, July and August (5mi).

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Farmington, Missouri, USA

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