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 commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a warm 81°F (27.2°C) in August to a pleasant 73°F (22.8°C). Throughout September, Brockton experiences a low-temperature average of 56.3°F (13.5°C).Humidity
In Brockton, the average relative humidity in September is 77%.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
In Brockton, snow does not fall in June through October.Daylight
The average length of the day in September is 12h and 28min.On the first day of September in Brockton, 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 6:26 pm EDT.
Sunshine
In September, the average sunshine is 8.2h.UV index
In Brockton, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: A typical high UV index of 4 in September suggests the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Brockton have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Brockton have in September?
What is the UV index reading in September?
Average temperature in September
Brockton, MA
- Average high temperature in September: 73°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 (34.5°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in September
Brockton, 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
Brockton, MA
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in September
Brockton, MA
- Average humidity in September: 77%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (71%).
Average rainfall in September
Brockton, 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
Brockton, MA
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in September
Brockton, MA
- Average snowfall in September: 0"
The month with the highest snowfall is March (4.17").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Brockton, MA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.4 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
Brockton, 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 1min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Brockton, MA
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is July (13.1 days).
Average UV index in September
Brockton, 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
Brockton, MA
- Average cloud cover in September: 39
The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Brockton, 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).
Brockton, Massachusetts, USA
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