September weather forecast
Greenville Junction, ME

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Weather in September

The first month of the autumn, September, is still a refreshing month in Greenville Junction, Maine, with temperature in the range of an average low of 46°F (7.8°C) and an average high of 65.5°F (18.6°C).

Temperature

Greenville Junction observes a small decrease in the average high-temperature with the arrival of September, falling from August's agreeable 73°F (22.8°C) to an enjoyable 65.5°F (18.6°C). Greenville Junction's average low-temperature is measured at a frosty 46°F (7.8°C) during September.

Humidity

In September, the average relative humidity is 80%.

Rainfall

In Greenville Junction, in September, it is raining for 12.5 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, in Greenville Junction, there are 147.1 rainfall days, and 34.65" (880mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In Greenville Junction, Maine, the average length of the day in September is 12h and 31min.
On the first day of the month, sunrise is at 6:00 am and sunset at 7:15 pm. On the last day of September, in Greenville Junction, Maine, sunrise is at 6:36 am and sunset at 6:20 pm EDT.

Sunshine

In September, the average sunshine in Greenville Junction is 7.4h.

UV index

In Greenville Junction, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 3 in September translates into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
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Frequently asked questions

What is the usual temperature for Greenville Junction in September?

An average high-temperature, in September, in Greenville Junction, is 65.5°F (18.6°C) and the average low-temperature is 46°F (7.8°C).

What is the average humidity in September in Greenville Junction?

In September, the average relative humidity is 80%.

How much does it rain in Greenville Junction in September?

In Greenville Junction, in September, during 12.5 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.

When it does not snow in Greenville Junction?

June through September are months without snowfall in Greenville Junction.

Does it snow in Greenville Junction in September?

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

What is the average length of the day in September in Greenville Junction?

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

When is the sunrise / sunset in September in Greenville Junction?

On the first day of September in Greenville Junction, Maine, sunrise is at 6:00 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 6:20 pm EDT.

How many hours of sunshine does Greenville Junction have in September?

The average sunshine duration in September is 7.4h.

What is the UV index reading in September in Greenville Junction?

The average daily maximum UV index in September in Greenville Junction, Maine, is 3. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
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
Greenville Junction, ME

Average temperature in September - Greenville Junction, ME
  • Average high temperature in September: 65.5°F

The warmest month (with the highest average high temperature) is July (74.8°F).
The month with the lowest average high temperature is January (20.8°F).

  • Average low temperature in September: 46°F

The month with the highest average low temperature is July (54.5°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).

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Average pressure in September
Greenville Junction, ME

Average pressure in September - Greenville Junction, 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 (29.9"Hg).

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Average wind speed in September
Greenville Junction, ME

Average wind speed in September - Greenville Junction, ME
  • Average wind speed in September: 5.8mph

The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in September
Greenville Junction, ME

Average humidity in September - Greenville Junction, ME
  • Average humidity in September: 80%

The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (77%).

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Average rainfall in September
Greenville Junction, ME

Average rainfall in September - Greenville Junction, ME
  • Average rainfall in September: 2.44"

The wettest month (with the highest rainfall) is April (3.54").
The driest month (with the least rainfall) is February (2.24").

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Average rainfall days in September
Greenville Junction, ME

Average rainfall days in September - Greenville Junction, ME
  • Average rainfall days in September: 12.5 days

The months with the highest number of rainy days are July and August (17.8 days).
The month with the least rainy days is February (4.4 days).

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Average snowfall in September
Greenville Junction, ME

Average snowfall in September - Greenville Junction, ME
  • Average snowfall in September: 0"

The month with the highest snowfall is January (14.33").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Greenville Junction, ME

Average snowfall days in September - Greenville Junction, ME
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (20.6 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
Greenville Junction, ME

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

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in September: 7h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).

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Average sunshine days in September
Greenville Junction, ME

Average sunshine days in September - Greenville Junction, ME
  • Average sunshine days in September: 15.1 days

The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is February (8.1 days).

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Average UV index in September
Greenville Junction, ME

Average UV index in September - Greenville Junction, ME
  • Average UV index in September: 3

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).

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Average cloud cover in September
Greenville Junction, ME

Average cloud cover in September - Greenville Junction, ME
  • Average cloud cover in September: 46

The month with the most cloud cover is February (Cloud cover 73).
The months with the least cloud cover are July and August (Cloud cover 45).

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Average visibility in September
Greenville Junction, ME

Average visibility in September - Greenville Junction, ME
  • Average visibility in September: 4mi

The months with the highest visibility are May, July, October and November (5mi).
The months with the lowest visibility are January, February, March, April, June, August, September and December (4mi).

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Greenville Junction, Maine, USA

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