September weather forecast
Adams, ME

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Weather in September

September, the first month of the autumn in Adams, is also an agreeable month, with an average temperature varying between 48.7°F (9.3°C) and 68.4°F (20.2°C).

Temperature

Adams experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a warm 75.9°F (24.4°C) in August to a pleasant 68.4°F (20.2°C). In September, the average low-temperature in Adams records at a chilly 48.7°F (9.3°C) during the nights.

Humidity

In September, the average relative humidity is 78%.

Rainfall

In Adams, in September, it is raining for 10.9 days, with typically 2.32" (59mm) of accumulated precipitation. In Adams, during the entire year, the rain falls for 146.2 days and collects up to 27.17" (690mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 31min.
On the first day of September, sunrise is at 5:58 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 6:17 pm EDT.

Sunshine

The average sunshine in September is 8h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Updated: Jun 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

Adams in September has an average high-temperature of 68.4°F (20.2°C) and an average low-temperature of 48.7°F (9.3°C).

What is the average humidity in September?

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

How much does it rain in September?

In Adams, in September, during 10.9 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 Adams, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September?

The average day length in September in Adams is 12h and 31min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 5:58 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 6:17 pm EDT.

How long on average sun shines in September?

In Adams, the average sunshine duration in September is 8h.

What is the UV index reading in September?

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Adams, ME

Average temperature in September - Adams, ME
  • Average high temperature in September: 68.4°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 (24.3°F).

  • Average low temperature in September: 48.7°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 (11.1°F).

Average pressure in September
Adams, ME

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

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

Average wind speed in September
Adams, ME

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

The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in September
Adams, ME

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

The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is May (75%).

Average rainfall in September
Adams, ME

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

The wettest month (with the highest rainfall) is April (2.91").
The driest month (with the least rainfall) is July (1.57").

Average rainfall days in September
Adams, ME

Average rainfall days in September - Adams, ME
  • Average rainfall days in September: 10.9 days

The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is February (6.9 days).

Average snowfall in September
Adams, ME

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

The month with the highest snowfall is February (8.35").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Adams, ME

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

The month with the highest number of snowfall days is February (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Adams, 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 0min

The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).

Average sunshine days in September
Adams, ME

Average sunshine days in September - Adams, ME
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is April (10.7 days).

Average UV index in September
Adams, ME

Average UV index in September - Adams, 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).

Average cloud cover in September
Adams, ME

Average cloud cover in September - Adams, ME
  • Average cloud cover in September: 41

The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 40).

Average visibility in September
Adams, ME

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

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

Adams, Maine, USA

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