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
With the onset of September, North Boston's climate undergoes a slight change as the average high-temperature moves from a warm 75.9°F (24.4°C) in August to an agreeable 70.2°F (21.2°C). Throughout September, the temperature tends to fall to a consistent average low of 54.7°F (12.6°C).Humidity
August and September, with an average relative humidity of 78%, are the least humid months.Rainfall
In North Boston, in September, during 14.2 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. Throughout the year, there are 160.5 rainfall days, and 24.17" (614mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 29min.On the first day of the month, sunrise is at 6:40 am and sunset at 7:49 pm. On the last day of September, in North Boston, sunrise is at 7:12 am and sunset at 6:57 pm EDT.
Sunshine
In September, the average sunshine in North Boston is 8.9h.UV index
In North Boston, New York, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 3 during September leads to these instructions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Frequently asked questions
What is the average September temperature in North Boston?
What is the least humid month in North Boston?
What is the average humidity in September in North Boston?
How many days does it rain in September in North Boston?
When it does not snow in North Boston?
Does it snow in North Boston in September?
How many hours of daylight does North Boston have in September?
When is the sunrise / sunset in September in North Boston?
How long on average sun shines in September in North Boston?
How high is the UV index in September in North Boston?
Average temperature in September
North Boston, NY
- Average high temperature in September: 70.2°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in September: 54.7°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in September
North Boston, NY
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
North Boston, NY
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is January (11.8mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).
Average humidity in September
North Boston, NY
- Average humidity in September: 78%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are August and September (78%).
Average rainfall in September
North Boston, NY
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is July (2.52").
The driest month (with the least rainfall) is January (1.54").
Average rainfall days in September
North Boston, NY
- Average rainfall days in September: 14.2 days
The months with the highest number of rainy days are July and October (18.1 days).
The month with the least rainy days is February (7 days).
Average snowfall in September
North Boston, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
North Boston, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (15.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
North Boston, NY
- 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 5min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in September
North Boston, NY
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is March (13 days).
The month with the least sunshine days is January (8.3 days).
Average UV index in September
North Boston, NY
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
North Boston, NY
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
North Boston, NY
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
North Boston, New York, USA
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