Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a warm 80.4°F (26.9°C) to a pleasant 72.9°F (22.7°C). Attleboro Falls, in September, observes a steady average low-temperature of 56.1°F (13.4°C).Humidity
February, June, September and October, with an average relative humidity of 78%, are the most humid months.Rainfall
The month with the least rainfall in Attleboro Falls is September, when the rain falls for 11.5 days and typically collects 1.34" (34mm) of precipitation.Snowfall
In Attleboro Falls, snow does not fall in June through October.Daylight
In Attleboro Falls, Massachusetts, the average length of the day in September is 12h and 28min.On the first day of September, 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 6:28 pm EDT.
Sunshine
In Attleboro Falls, the average sunshine in September is 8.4h.UV index
In Attleboro Falls, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Frequently asked questions
What are the temperatures in Attleboro Falls in September?
What is the most humid month in Attleboro Falls?
What is the average humidity in September in Attleboro Falls?
What is the driest month in Attleboro Falls?
How much does it rain in Attleboro Falls in September?
When it does not snow in Attleboro Falls?
How many hours of daylight does Attleboro Falls have in September?
When are sunrise and sunset in September in Attleboro Falls?
How long on average sun shines in September in Attleboro Falls?
How high is the UV index in September in Attleboro Falls?
Average temperature in September
Attleboro Falls, MA
- Average high temperature in September: 72.9°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in September: 56.1°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 (22.5°F).
Average pressure in September
Attleboro Falls, 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
Attleboro Falls, MA
- Average wind speed in September: 6.7mph
The windiest months (with the highest average wind speed) are February and March (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in September
Attleboro Falls, MA
- Average humidity in September: 78%
The months with the highest relative humidity are February, June, September and October (78%).
The month with the lowest relative humidity is April (71%).
Average rainfall in September
Attleboro Falls, MA
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (1.34").
Average rainfall days in September
Attleboro Falls, MA
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Attleboro Falls, MA
- Average snowfall in September: 0"
The month with the highest snowfall is March (4.06").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Attleboro Falls, MA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.8 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
Attleboro Falls, 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 42min).
Average sunshine days in September
Attleboro Falls, MA
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in September
Attleboro Falls, 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
Attleboro Falls, 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 34).
Average visibility in September
Attleboro Falls, MA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are August and September (5mi).
Attleboro Falls, Massachusetts, USA
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