September weather forecast
Fairfield, ME

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Weather in September

The first month of the autumn, September, is also an agreeable month in Fairfield, Maine, with an average temperature fluctuating between 48.9°F (9.4°C) and 68.9°F (20.5°C).

Temperature

A moderate decline in average high-temperatures is noted in September, moving from a moderately hot 76.5°F (24.7°C) in August to a pleasant 68.9°F (20.5°C). Throughout the month of September, Fairfield sees a steady low-temperature average of 48.9°F (9.4°C).

Humidity

In September, the average relative humidity in Fairfield is 80%.

Rainfall

September is the month with the least rainfall in Fairfield. Rain falls for 9.7 days and accumulates 1.54" (39mm) of precipitation.

Snowfall

In Fairfield, snow does not fall in June through September.

Daylight

The average length of the day in September in Fairfield is 12h and 31min.
On the first day of September in Fairfield, Maine, sunrise is at 6:01 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 6:20 pm EDT.

Sunshine

In September, the average sunshine in Fairfield is 8.1h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 4 in September translates into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What are the temperatures in Fairfield in September?

In Fairfield, in September, the average high-temperature is 68.9°F (20.5°C), and the average low-temperature is 48.9°F (9.4°C).

What is the average humidity in September in Fairfield?

In Fairfield, Maine, the average relative humidity in September is 80%.

What is the driest month in Fairfield?

The month with the least rainfall is September, when the rain falls for 9.7 days and typically collects 1.54" (39mm) of precipitation.

How many days does it rain in September in Fairfield?

In Fairfield, during September, the rain falls for 9.7 days and regularly aggregates up to 1.54" (39mm) of precipitation.

When it does not snow in Fairfield?

June through September are months without snowfall in Fairfield.

Does it snow in Fairfield in September?

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

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

In Fairfield, Maine, the average day length in September is 12h and 31min.

What time are sunrise and sunset in September in Fairfield?

On the first day of September in Fairfield, Maine, sunrise is at 6:01 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 6:20 pm EDT.

How many hours of sunshine does Fairfield have in September?

In Fairfield, Maine, the average sunshine duration in September is 8.1h.

How high is the UV index in September in Fairfield?

The average daily maximum UV index in September in Fairfield, Maine, is 4. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Fairfield, ME

Average temperature in September - Fairfield, ME
  • Average high temperature in September: 68.9°F

The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (25.3°F).

  • Average low temperature in September: 48.9°F

The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).

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Average pressure in September
Fairfield, ME

Average pressure in September - Fairfield, ME
  • Average pressure in September: 30.04"Hg

The months with the highest atmospheric pressure are September and November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in September
Fairfield, ME

Average wind speed in September - Fairfield, ME
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in September
Fairfield, ME

Average humidity in September - Fairfield, ME
  • Average humidity in September: 80%

The months with the highest relative humidity are February and March (85%).
The months with the lowest relative humidity are April and November (78%).

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Average rainfall in September
Fairfield, ME

Average rainfall in September - Fairfield, ME
  • Average rainfall in September: 1.54"

The wettest month (with the highest rainfall) is April (3.03").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days in September
Fairfield, ME

Average rainfall days in September - Fairfield, ME
  • Average rainfall days in September: 9.7 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (5.6 days).

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Average snowfall in September
Fairfield, ME

Average snowfall in September - Fairfield, ME
  • Average snowfall in September: 0"

The month with the highest snowfall is January (8.07").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Fairfield, ME

Average snowfall days in September - Fairfield, ME
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Fairfield, ME

Average daylight in September / Average sunshine in September - Fairfield, ME
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

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Average sunshine days in September
Fairfield, ME

Average sunshine days in September - Fairfield, ME
  • Average sunshine days in September: 17.7 days

The month with the most sunshine days is September (17.7 days).
The month with the least sunshine days is April (11.5 days).

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Average UV index in September
Fairfield, ME

Average UV index in September - Fairfield, ME
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in September
Fairfield, ME

Average cloud cover in September - Fairfield, ME
  • Average cloud cover in September: 40

The months with the most cloud cover are February, March and April (Cloud cover 54).
The months with the least cloud cover are August and September (Cloud cover 40).

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Average visibility in September
Fairfield, ME

Average visibility in September - Fairfield, ME
  • Average visibility in September: 5mi

The months with the highest visibility are November and December (6mi).
The month with the lowest visibility is August (4mi).

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Fairfield, Maine, USA

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