September weather forecast
Cambridge, ME

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Weather in September

September, the first month of the autumn in Cambridge, is still a pleasant month, with temperature in the range of an average low of 48.9°F (9.4°C) and an average high of 68.9°F (20.5°C).

Temperature

September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a moderately hot 76.5°F (24.7°C) in August to an agreeable 68.9°F (20.5°C). The nights of September anticipate an average low-temperature of 48.9°F (9.4°C).

Humidity

The average relative humidity in September in Cambridge is 78%.

Rainfall

In Cambridge, during September, the rain falls for 9.1 days and regularly aggregates up to 1.06" (27mm) of precipitation. In Cambridge, during the entire year, the rain falls for 120.7 days and collects up to 15.79" (401mm) of precipitation.

Snowfall

June through September are months without snowfall in Cambridge.

Daylight

In Cambridge, 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 7:14 pm. On the last day of September, in Cambridge, sunrise is at 6:35 am and sunset at 6:19 pm EDT.

Sunshine

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

UV index

In September, the average daily maximum UV index in Cambridge is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 4 during September leads to these instructions:
Act with care - The need to guard against sun damage is communicated. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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Frequently asked questions

What is the temperature in September in Cambridge?

The high-temperature, in September, in Cambridge, is 68.9°F (20.5°C), while the low-temperature averages to 48.9°F (9.4°C).

What is the average humidity in September in Cambridge?

In September, the average relative humidity in Cambridge, Maine, is 78%.

How much does it rain in Cambridge in September?

In September, in Cambridge, Maine, the rain falls for 9.1 days. Throughout September, 1.06" (27mm) of precipitation is accumulated.

When it does not snow in Cambridge?

June through September are months without snowfall in Cambridge, Maine.

Does it snow in Cambridge in September?

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

How many hours of daylight does Cambridge have in September?

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

When is the sunrise / sunset in September in Cambridge?

On the first day of September in Cambridge, sunrise is at 6:00 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 6:19 pm EDT.

How many hours of sunshine does Cambridge have in September?

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

What is the UV index reading in September in Cambridge?

The average daily maximum UV index in September in Cambridge, Maine, is 4. A UV Index estimate of 3 to 5 represents 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
Cambridge, ME

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

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (24.8°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 (11.3°F).

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Average pressure in September
Cambridge, ME

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

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

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Average wind speed in September
Cambridge, ME

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

The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in September
Cambridge, ME

Average humidity in September - Cambridge, ME
  • Average humidity in September: 78%

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are May and November (77%).

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Average rainfall in September
Cambridge, ME

Average rainfall in September - Cambridge, ME
  • Average rainfall in September: 1.06"

The wettest months (with the highest rainfall) are April, June and October (1.73").
The driest months (with the least rainfall) are February and March (0.91").

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Average rainfall days in September
Cambridge, ME

Average rainfall days in September - Cambridge, ME
  • Average rainfall days in September: 9.1 days

The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is February (4.3 days).

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Average snowfall in September
Cambridge, ME

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

The month with the highest snowfall is February (4.09").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Cambridge, ME

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

The month with the highest number of snowfall days is February (11.1 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
Cambridge, ME

Average daylight in September / Average sunshine in September - Cambridge, 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: 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: 3h and 48min).

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Average sunshine days in September
Cambridge, ME

Average sunshine days in September - Cambridge, ME
  • Average sunshine days in September: 19 days

The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is July (12.4 days).

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Average UV index in September
Cambridge, ME

Average UV index in September - Cambridge, 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
Cambridge, ME

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

The month with the most cloud cover is February (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 40).

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Average visibility in September
Cambridge, ME

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

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

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Cambridge, Maine, USA

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