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 brings a minor shift in the average high-temperature, adjusting from a moderately hot 75.6°F (24.2°C) in August to an agreeable 68°F (20°C). Andover witnesses a consistent average low-temperature of 47.3°F (8.5°C) throughout September.Humidity
In Andover, the average relative humidity in September is 79%.Rainfall
In Andover, during September, the rain falls for 11 days and regularly aggregates up to 1.89" (48mm) of precipitation. Throughout the year, in Andover, there are 146.3 rainfall days, and 28.31" (719mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Andover.Daylight
In September, the average length of the day in Andover, Maine, is 12h and 31min.On the first day of the month, sunrise is at 6:06 am and sunset at 7:19 pm. On the last day of September, in Andover, sunrise is at 6:40 am and sunset at 6:24 pm EDT.
Sunshine
In Andover, the average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index in Andover is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Frequently asked questions
What is the average September temperature in Andover?
What is the average humidity in September in Andover?
How many days does it rain in September in Andover?
When it does not snow in Andover?
Does it snow in Andover in September?
How many hours of daylight does Andover have in September?
When are sunrise and sunset in September in Andover?
How many hours of sunshine does Andover have in September?
What is the UV index intensity in September in Andover?
Average temperature in September
Andover, ME
- Average high temperature in September: 68°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (23.7°F).
- Average low temperature in September: 47.3°F
The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (10°F).
Average pressure in September
Andover, ME
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Andover, ME
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is March (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Andover, ME
- Average humidity in September: 79%
The months with the highest relative humidity are January, February and March (86%).
The months with the lowest relative humidity are May and November (76%).
Average rainfall in September
Andover, ME
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is October (3.31").
The driest month (with the least rainfall) is July (1.85").
Average rainfall days in September
Andover, ME
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in September
Andover, ME
- Average snowfall in September: 0"
The month with the highest snowfall is February (12.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Andover, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Andover, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in September
Andover, ME
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is September (16.7 days).
The months with the least sunshine days are February and April (11.3 days).
Average UV index in September
Andover, ME
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in September
Andover, ME
- Average cloud cover in September: 40
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 40).
Average visibility in September
Andover, ME
- Average visibility in September: 4mi
The months with the highest visibility are May, June, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, July, August and September (4mi).
Andover, Maine, USA
Weather forecast for your location
2. Allow the app to use your location
