September weather forecast
Middleton, MA

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Weather in September

The first month of the autumn, September, is still a pleasant month in Middleton, Massachusetts, with an average temperature fluctuating between 71.1°F (21.7°C) and 57.7°F (14.3°C).

Temperature

Middleton's progression into September involves a minor drop in the average high-temperature, slightly receding from a warm 78.4°F (25.8°C) in August to an agreeable 71.1°F (21.7°C). Throughout September, the average low-temperature in Middleton records at a refreshing 57.7°F (14.3°C).

Humidity

The average relative humidity in September in Middleton is 76%.

Rainfall

September is the month with the least rainfall. Rain falls for 10.7 days and accumulates 1.3" (33mm) of precipitation.

Snowfall

May through September are months without snowfall in Middleton.

Daylight

In Middleton, the average length of the day in September is 12h and 29min.
On the first day of the month, sunrise is at 6:09 am and sunset at 7:17 pm. On the last day of September, in Middleton, sunrise is at 6:40 am and sunset at 6:26 pm EDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

In Middleton, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the UV index of 4 transforms into the following advice:
Take necessary precautions - Defending against sun damage is advocated. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

What are September temperatures in Middleton?

The average high-temperature, in September, in Middleton, is 71.1°F (21.7°C), while the average low-temperature is 57.7°F (14.3°C).

What is the average humidity in September in Middleton?

In Middleton, Massachusetts, the average relative humidity in September is 76%.

What is the driest month in Middleton?

The month with the least rainfall in Middleton, Massachusetts, is September, when the rain falls for 10.7 days and typically collects 1.3" (33mm) of precipitation.

How much does it rain in Middleton in September?

In Middleton, in September, during 10.7 rainfall days, 1.3" (33mm) of precipitation is typically accumulated.

When it does not snow in Middleton?

May through September are months without snowfall in Middleton, Massachusetts.

Does it snow in Middleton in September?

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

What is the average length of the day in September in Middleton?

The average day length in September in Middleton, Massachusetts, is 12h and 29min.

When are sunrise and sunset in September in Middleton?

In September, on the first day of the month, sunrise is at 6:09 am and sunset at 7:17 pm. On the last day of the month, in Middleton, Massachusetts, sunrise is at 6:40 am and sunset at 6:26 pm EDT.

How long on average sun shines in September in Middleton?

In Middleton, the average sunshine duration in September is 8.5h.

How high is the UV index in September in Middleton?

The average daily maximum UV index in September in Middleton, Massachusetts, is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to 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
Middleton, MA

Average temperature in September - Middleton, MA
  • Average high temperature in September: 71.1°F

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in September: 57.7°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

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Average pressure in September
Middleton, MA

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

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in September
Middleton, MA

Average wind speed in September - Middleton, MA
  • Average wind speed in September: 7.5mph

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).

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Average humidity in September
Middleton, MA

Average humidity in September - Middleton, MA
  • Average humidity in September: 76%

The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in September
Middleton, MA

Average rainfall in September - Middleton, MA
  • Average rainfall in September: 1.3"

The wettest month (with the highest rainfall) is December (2.95").
The driest month (with the least rainfall) is September (1.3").

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Average rainfall days in September
Middleton, MA

Average rainfall days in September - Middleton, MA
  • Average rainfall days in September: 10.7 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (8.5 days).

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Average snowfall in September
Middleton, MA

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

The month with the highest snowfall is February (4.53").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Middleton, MA

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

The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in September
Middleton, MA

Average sunshine days in September - Middleton, MA
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is September (17.5 days).
The months with the least sunshine days are February and April (13.1 days).

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Average UV index in September
Middleton, MA

Average UV index in September - Middleton, 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).

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Average cloud cover in September
Middleton, MA

Average cloud cover in September - Middleton, MA
  • Average cloud cover in September: 35

The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in September
Middleton, MA

Average visibility in September - Middleton, 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).

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Middleton, Massachusetts, USA

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