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
September is characterized by a mild reduction in the average high-temperature, from a moderately hot 77.2°F (25.1°C) in August to an agreeable 68.9°F (20.5°C). In the month of September, Basin Mills experiences an average low-temperature of 50°F (10°C).Humidity
In September, the average relative humidity is 78%.Rainfall
In September, the rain falls for 10.5 days. Throughout September, 2.01" (51mm) of precipitation is accumulated. In Basin Mills, during the entire year, the rain falls for 148.7 days and collects up to 29.84" (758mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Basin Mills, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 5:57 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 6:16 pm EDT.
Sunshine
The average sunshine in September is 8.1h.UV index
In Basin Mills, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Take precautions - Protection against sun damage is advised. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. 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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Basin Mills have in September?
How high is the UV index in September?
Average temperature in September
Basin Mills, ME
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in September: 50°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in September
Basin Mills, ME
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Basin Mills, ME
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Basin Mills, ME
- Average humidity in September: 78%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Basin Mills, ME
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is July (1.61").
Average rainfall days in September
Basin Mills, ME
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in September
Basin Mills, ME
- Average snowfall in September: 0"
The month with the highest snowfall is January (8.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Basin Mills, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Basin Mills, ME
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in September
Basin Mills, ME
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is April (10.1 days).
Average UV index in September
Basin Mills, ME
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Basin Mills, ME
- Average cloud cover in September: 39
The month with the most cloud cover is February (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 39).
Average visibility in September
Basin Mills, ME
- Average visibility in September: 5mi
The month with the highest visibility is October (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, November and December (5mi).
Basin Mills, Maine, USA
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