September weather forecast
Caribou, ME

Weather in September

September, the first month of the autumn in Caribou, is also an enjoyable month, with temperature in the range of an average low of 46°F (7.8°C) and an average high of 64.9°F (18.3°C).

Temperature

In Caribou, the average high-temperature in September marginally drops from a warm 73.6°F (23.1°C) in August to a comfortable 64.9°F (18.3°C). The average low-temperature, in Caribou, is 46°F (7.8°C).

Humidity

In September, the average relative humidity is 80%.

Rainfall

In Caribou, in September, during 13.5 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. In Caribou, during the entire year, the rain falls for 144 days and collects up to 32.95" (837mm) of precipitation.

Snowfall

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

Daylight

In Caribou, the average length of the day in September is 12h and 32min.
On the first day of September in Caribou, Maine, sunrise is at 5:51 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 6:14 pm EDT.

Sunshine

In September, the average sunshine is 7.3h.

UV index

In Caribou, Maine, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 3 in September transform into the following instructions:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Caribou?

The average high-temperature, in September, in Caribou, Maine, is 64.9°F (18.3°C), while the average low-temperature is 46°F (7.8°C).

What is the average humidity in September in Caribou?

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

How many days does it rain in September in Caribou?

In Caribou, during September, the rain falls for 13.5 days and regularly aggregates up to 2.32" (59mm) of precipitation.

When it does not snow in Caribou?

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

Does it snow in Caribou in September?

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

How many hours of daylight does Caribou have in September?

In September, the average day length in Caribou is 12h and 32min.

When is the sunrise / sunset in September in Caribou?

In September, on the first day of the month, sunrise is at 5:51 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 6:14 pm EDT.

How long on average sun shines in September in Caribou?

In September, the average sunshine duration in Caribou is 7.3h.

What is the UV index reading in September in Caribou?

In September, the average daily maximum UV index in Caribou, Maine, is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Caribou, ME

Average temperature in September - Caribou, ME
  • Average high temperature in September: 64.9°F

The warmest month (with the highest average high temperature) is July (75°F).
The month with the lowest average high temperature is January (19.4°F).

  • Average low temperature in September: 46°F

The month with the highest average low temperature is July (54.7°F).
The coldest month (with the lowest average low temperature) is January (4.3°F).

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Average pressure in September
Caribou, ME

Average pressure in September - Caribou, ME
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is September (30.02"Hg).
The months with the lowest atmospheric pressure are June and July (29.89"Hg).

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Average wind speed in September
Caribou, ME

Average wind speed in September - Caribou, ME
  • Average wind speed in September: 6.9mph

The windiest months (with the highest average wind speed) are February and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average humidity in September
Caribou, ME

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

The months with the highest relative humidity are February and March (93%).
The month with the lowest relative humidity is May (75%).

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Average rainfall in September
Caribou, ME

Average rainfall in September - Caribou, ME
  • Average rainfall in September: 2.32"

The wettest month (with the highest rainfall) is April (3.46").
The driest month (with the least rainfall) is February (2.2").

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Average rainfall days in September
Caribou, ME

Average rainfall days in September - Caribou, ME
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is June (16.9 days).
The month with the least rainy days is January (4.2 days).

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Average snowfall in September
Caribou, ME

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

The month with the highest snowfall is January (15.91").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Caribou, ME

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

The month with the highest number of snowfall days is February (21 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
Caribou, ME

Average daylight in September / Average sunshine in September - Caribou, ME
  • Average daylight in September: 12h and 32min

The month with the longest days is June (Average daylight: 15h and 49min).
The month with the shortest days is December (Average daylight: 8h and 37min).

  • Average sunshine in September: 7h and 18min

The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is February (Average sunshine: 2h and 6min).

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Average sunshine days in September
Caribou, ME

Average sunshine days in September - Caribou, ME
  • Average sunshine days in September: 14.7 days

The month with the most sunshine days is September (14.7 days).
The month with the least sunshine days is February (7.8 days).

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Average UV index in September
Caribou, ME

Average UV index in September - Caribou, ME
  • Average UV index in September: 3

The months with the highest UV index are June and 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
Caribou, ME

Average cloud cover in September - Caribou, ME
  • Average cloud cover in September: 45

The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 43).

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Average visibility in September
Caribou, ME

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

The month with the highest visibility is May (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).

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