September weather forecastMilton, MA
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Milton, Massachusetts, with an average temperature fluctuating between 72.7°F (22.6°C) and 57.2°F (14°C).Temperature
The transition into September subtly indicates a reduction in the average high-temperature, down to an agreeable 72.7°F (22.6°C) from August's moderately hot 80.2°F (26.8°C). In Milton, the average low-temperature during the month of September is a refreshing 57.2°F (14°C).Humidity
In September, the average relative humidity is 76%.Rainfall
September is the month with the least rainfall. Rain falls for 6.9 days and accumulates 0.31" (8mm) of precipitation.Snowfall
In Milton, 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, 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.
Sunshine
In September, the average sunshine is 8.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 4 translates into these guidelines:
Take precautions - Protection against sun damage is advised. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Milton, MA
- Average high temperature in September: 72.7°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in September: 57.2°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 (22.6°F).
Average pressure in September
Milton, 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 (29.93"Hg).
Average wind speed in September
Milton, MA
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in September
Milton, MA
- Average humidity in September: 76%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).
Average rainfall in September
Milton, MA
- Average rainfall in September: 0.31"
The wettest month (with the highest rainfall) is April (0.79").
The driest month (with the least rainfall) is September (0.31").
Average rainfall days in September
Milton, MA
- Average rainfall days in September: 6.9 days
The month with the highest number of rainy days is July (10.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Milton, MA
- Average snowfall in September: 0"
The month with the highest snowfall is March (0.83").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Milton, MA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.6 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
Milton, MA
- Average daylight in September: 12h and 30min
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 18min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Milton, MA
- Average sunshine days in September: 21.2 days
The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is April (17.8 days).
Average UV index in September
Milton, 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
Milton, MA
- Average cloud cover in September: 37
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Milton, 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).
