September weather forecast
Mansfield, MA

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Weather in September

The first month of the autumn, September, is also an agreeable month in Mansfield, Massachusetts, with temperature in the range of an average high of 73°F (22.8°C) and an average low of 55.9°F (13.3°C).

Temperature

In Mansfield, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's moderately hot 80.8°F (27.1°C) to a pleasant 73°F (22.8°C). The average temperature during September nights dips to a mild 55.9°F (13.3°C).

Humidity

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

Rainfall

The month with the least rainfall is September, when the rain falls for 11.4 days and typically collects 1.42" (36mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Mansfield, the average length of the day in September is 12h and 28min.
On the first day of September in Mansfield, sunrise is at 6:11 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:27 pm EDT.

Sunshine

In Mansfield, the average sunshine in September is 8.3h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index, 4 during September, leads to the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Considering the strength of solar radiation at midday, one should avoid direct Sun 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.

Frequently asked questions

What are the temperatures in Mansfield in September?

In September, in Mansfield, the average high-temperature is 73°F (22.8°C), and the average low-temperature is 55.9°F (13.3°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 86°F (30°C).

What is the most humid month?

February, September and October, with an average relative humidity of 78%, are most humid months.

What is the average humidity in September?

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

What is the driest month?

The month with the least rainfall is September, when the rain falls for 11.4 days and typically collects 1.42" (36mm) of precipitation.

How much does it rain in September?

In Mansfield, in September, it is raining for 11.4 days, with typically 1.42" (36mm) of accumulated precipitation.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Mansfield have in September?

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

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:11 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:27 pm EDT.

How long on average sun shines in September?

In Mansfield, the average sunshine duration in September is 8.3h.

How high is the UV index in September?

In September, the average daily maximum UV index is 4. A UV Index estimate 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
Mansfield, MA

Average temperature in September - Mansfield, MA
  • Average high temperature in September: 73°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34.2°F).

  • Average low temperature in September: 55.9°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

Average pressure in September
Mansfield, MA

Average pressure in September - Mansfield, 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
Mansfield, MA

Average wind speed in September - Mansfield, MA
  • Average wind speed in September: 6.4mph

The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in September
Mansfield, MA

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

The months with the highest relative humidity are February, September and October (78%).
The month with the lowest relative humidity is April (71%).

Average rainfall in September
Mansfield, MA

Average rainfall in September - Mansfield, MA
  • Average rainfall in September: 1.42"

The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is September (1.42").

Average rainfall days in September
Mansfield, MA

Average rainfall days in September - Mansfield, MA
  • Average rainfall days in September: 11.4 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in September
Mansfield, MA

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

The month with the highest snowfall is March (4.25").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Mansfield, MA

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

The month with the highest number of snowfall days is February (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Mansfield, 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 18min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in September
Mansfield, MA

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

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (12.6 days).

Average UV index in September
Mansfield, MA

Average UV index in September - Mansfield, 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
Mansfield, MA

Average cloud cover in September - Mansfield, MA
  • Average cloud cover in September: 38

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in September
Mansfield, MA

Average visibility in September - Mansfield, MA
  • Average visibility in September: 5mi

The months with the highest visibility are January, February, March, April, May, October, November and December (6mi).
The months with the lowest visibility are June, July, August and September (5mi).

Mansfield, Massachusetts, USA

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