September weather forecast
Whittenton, MA

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Weather in September

The first month of the autumn, September, is also an agreeable month in Whittenton, Massachusetts, with an average temperature fluctuating between 57.7°F (14.3°C) and 72.9°F (22.7°C).

Temperature

Whittenton's progression into September involves a gentle drop in the average high-temperature, from a warm 80.2°F (26.8°C) in August to a pleasant 72.9°F (22.7°C). September in Whittenton witnesses an average low-temperature hovering around a mild 57.7°F (14.3°C).

Humidity

The months with the highest humidity are June, July and September, with an average relative humidity of 78%.

Rainfall

September is the month with the least rainfall. Rain falls for 11.5 days and accumulates 1.34" (34mm) of precipitation.

Snowfall

In Whittenton, snow does not fall in June through October.

Daylight

In Whittenton, the average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:10 am and sunset at 7:17 pm. On the last day of September, in Whittenton, sunrise is at 6:40 am and sunset at 6:27 pm EDT.

Sunshine

In Whittenton, the average sunshine in September is 8.4h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 4 during September leads to these instructions:
Ensure safety - Recommendations to avert sunburn are presented. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Whittenton in September?

Whittenton in September has an average high-temperature of 72.9°F (22.7°C) and an average low-temperature of 57.7°F (14.3°C). In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 86°F (30°C).

What are the most humid months?

The months with the highest humidity are June, July and September, with an average relative humidity of 78%.

What is the average humidity in September?

In September, the average relative humidity is 78%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 11.5 days and typically collects 1.34" (34mm) of precipitation.

How much does it rain in September?

In September, the rain falls for 11.5 days. Throughout September, 1.34" (34mm) of precipitation is accumulated.

When it does not snow in Whittenton?

In Whittenton, snow does not fall in June through October.

What is the average length of the day in September?

In September, the average day length is 12h and 28min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:10 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:27 pm EDT.

How many hours of sunshine does Whittenton have in September?

In September, the average sunshine duration is 8.4h.

What is the UV index intensity in September?

In Whittenton, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Whittenton, MA

Average temperature in September - Whittenton, MA
  • Average high temperature in September: 72.9°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in September: 57.7°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

Average pressure in September
Whittenton, MA

Average pressure in September - Whittenton, MA
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Whittenton, MA

Average wind speed in September - Whittenton, MA
  • Average wind speed in September: 7.2mph

The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in September
Whittenton, MA

Average humidity in September - Whittenton, MA
  • Average humidity in September: 78%

The months with the highest relative humidity are June, July and September (78%).
The month with the lowest relative humidity is April (72%).

Average rainfall in September
Whittenton, MA

Average rainfall in September - Whittenton, MA
  • Average rainfall in September: 1.34"

The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is September (1.34").

Average rainfall days in September
Whittenton, MA

Average rainfall days in September - Whittenton, MA
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is April (16 days).
The month with the least rainy days is February (8.5 days).

Average snowfall in September
Whittenton, MA

Average snowfall in September - Whittenton, MA
  • Average snowfall in September: 0"

The months with the highest snowfall are February and March (3.62").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in September
Whittenton, MA

Average snowfall days in September - Whittenton, MA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Whittenton, MA

Average daylight in September / Average sunshine in September - Whittenton, MA
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in September
Whittenton, MA

Average sunshine days in September - Whittenton, MA
  • Average sunshine days in September: 16 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is April (12.8 days).

Average UV index in September
Whittenton, MA

Average UV index in September - Whittenton, MA
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in September
Whittenton, MA

Average cloud cover in September - Whittenton, MA
  • Average cloud cover in September: 36

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in September
Whittenton, MA

Average visibility in September - Whittenton, MA
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Whittenton, Massachusetts, USA

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