September weather forecast
Dyer Brook, ME

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Weather in September

The first month of the autumn, September, is still a comfortable month in Dyer Brook, Maine, with an average temperature fluctuating between 66.4°F (19.1°C) and 47.1°F (8.4°C).

Temperature

A moderate decline in average high-temperatures is noted in September, moving from a warm 74.5°F (23.6°C) in August to an enjoyable 66.4°F (19.1°C). An average low-temperature of 47.1°F (8.4°C) is anticipated throughout the nights in Dyer Brook during September.

Humidity

In September, the average relative humidity is 80%.

Rainfall

In Dyer Brook, in September, during 12.6 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, there are 147.4 rainfall days, and 31.81" (808mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September is 12h and 32min.
On the first day of the month, sunrise is at 5:54 am and sunset at 7:10 pm. On the last day of September, sunrise is at 6:30 am and sunset at 6:14 pm EDT.

Sunshine

In September, the average sunshine is 7.4h.

UV index

The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average UV index of 3 in September transforms into this advice:
Heed the precautions - Suggestions to avoid sunburn are made. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

The high-temperature, in September, in Dyer Brook, records 66.4°F (19.1°C), while the low-temperature is 47.1°F (8.4°C).

What is the average humidity in September in Dyer Brook?

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

How much does it rain in September?

In Dyer Brook, in September, during 12.6 rainfall days, 2.32" (59mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Dyer Brook have in September?

The average day length in September is 12h and 32min.

When are sunrise and sunset in September?

On the first day of September in Dyer Brook, sunrise is at 5:54 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 6:14 pm EDT.

How many hours of sunshine does Dyer Brook have in September?

In Dyer Brook, the average sunshine duration in September is 7.4h.

What is the UV index reading in September?

In Dyer Brook, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe 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
Dyer Brook, ME

Average temperature in September - Dyer Brook, ME
  • Average high temperature in September: 66.4°F

The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (21.9°F).

  • Average low temperature in September: 47.1°F

The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is January (7.7°F).

Average pressure in September
Dyer Brook, ME

Average pressure in September - Dyer Brook, ME
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is September (30.03"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in September
Dyer Brook, ME

Average wind speed in September - Dyer Brook, ME
  • Average wind speed in September: 6.8mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in September
Dyer Brook, ME

Average humidity in September - Dyer Brook, ME
  • Average humidity in September: 80%

The months with the highest relative humidity are January, February and March (91%).
The month with the lowest relative humidity is May (76%).

Average rainfall in September
Dyer Brook, ME

Average rainfall in September - Dyer Brook, ME
  • Average rainfall in September: 2.32"

The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is July (2.17").

Average rainfall days in September
Dyer Brook, ME

Average rainfall days in September - Dyer Brook, ME
  • Average rainfall days in September: 12.6 days

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is February (4.3 days).

Average snowfall in September
Dyer Brook, ME

Average snowfall in September - Dyer Brook, ME
  • Average snowfall in September: 0"

The months with the highest snowfall are January and February (13.07").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Dyer Brook, ME

Average snowfall days in September - Dyer Brook, ME
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (19.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Dyer Brook, ME

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

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in September: 7h and 2min

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

Average sunshine days in September
Dyer Brook, ME

Average sunshine days in September - Dyer Brook, 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 April (8.7 days).

Average UV index in September
Dyer Brook, ME

Average UV index in September - Dyer Brook, 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).

Average cloud cover in September
Dyer Brook, ME

Average cloud cover in September - Dyer Brook, ME
  • Average cloud cover in September: 44

The month with the most cloud cover is February (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 42).

Average visibility in September
Dyer Brook, ME

Average visibility in September - Dyer Brook, ME
  • Average visibility in September: 5mi

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

Dyer Brook, Maine, USA

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