September weather forecast
Farmington, MS

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Weather in September

September, the first month of the autumn in Farmington, is still a warm month, with temperature in the range of an average low of 63.7°F (17.6°C) and an average high of 84°F (28.9°C).

Temperature

The onset of September brings an average high-temperature of a warm 84°F (28.9°C), nearly matching the August temperature. In September, Farmington reports a consistent average low-temperature of 63.7°F (17.6°C) during the nights.

Heat index

For most parts of September, the heat index is computed to be a tropical 91.4°F (33°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.

Humidity

In September, the average relative humidity is 74%.

Rainfall

September is the month with the least rainfall. Rain falls for 13.5 days and accumulates 2.01" (51mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Farmington, the average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 6:27 am and sunset at 7:20 pm. On the last day of September, sunrise is at 6:48 am and sunset at 6:38 pm CDT.

Sunshine

The average sunshine in September is 9h.

UV index

In September, the average daily maximum UV index in Farmington is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in Farmington in September?

The high-temperature during September is 84°F (28.9°C) and the low-temperature is 63.7°F (17.6°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in September is computed to be 91.4°F (33°C).

What is the average humidity in September in Farmington?

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

What is the driest month in Farmington?

The month with the least rainfall in Farmington is September, when the rain falls for 13.5 days and typically collects 2.01" (51mm) of precipitation.

How many days does it rain in September in Farmington?

In Farmington, Mississippi, in September, during 13.5 rainfall days, 2.01" (51mm) of precipitation is typically accumulated.

When it does not snow in Farmington?

April through October are months without snowfall in Farmington.

How many hours of daylight does Farmington have in September?

The average day length in September is 12h and 23min.

When is the sunrise / sunset in September in Farmington?

In September, on the first day of the month, sunrise is at 6:27 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:38 pm CDT.

How many hours of sunshine does Farmington have in September?

The average sunshine duration in September in Farmington, Mississippi, is 9h.

What is the UV index reading in September in Farmington?

In September, the average daily maximum UV index in Farmington is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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
Farmington, MS

Average temperature in September - Farmington, MS
  • Average high temperature in September: 84°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (47.5°F).

  • Average low temperature in September: 63.7°F

The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).

Average pressure in September
Farmington, MS

Average pressure in September - Farmington, MS
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in September
Farmington, MS

Average wind speed in September - Farmington, MS
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

Average humidity in September
Farmington, MS

Average humidity in September - Farmington, MS
  • Average humidity in September: 74%

The months with the highest relative humidity are March and December (80%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Farmington, MS

Average rainfall in September - Farmington, MS
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is February (4.69").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in September
Farmington, MS

Average rainfall days in September - Farmington, MS
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (10.2 days).

Average snowfall in September
Farmington, MS

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

The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Farmington, MS

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

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Farmington, MS

Average daylight in September / Average sunshine in September - Farmington, MS
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 9h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in September
Farmington, MS

Average sunshine days in September - Farmington, MS
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in September
Farmington, MS

Average UV index in September - Farmington, MS
  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in September
Farmington, MS

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

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June, August and September (Cloud cover 30).

Average visibility in September
Farmington, MS

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

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

Farmington, Mississippi, USA

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