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
As August transitions into September, Dexter sees a gentle drop in the average high-temperature, transitioning from a warm 76.5°F (24.7°C) to a pleasant 68.9°F (20.5°C). In Dexter, the average nighttime temperature during September is a chilly 48.9°F (9.4°C).Humidity
In September, the average relative humidity is 78%.Rainfall
In Dexter, Maine, in September, during 9.1 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, in Dexter, there are 120.7 rainfall days, and 15.79" (401mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Dexter.Daylight
The average length of the day in September in Dexter is 12h and 31min.On the first day of September, sunrise is at 6:00 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 6:18 pm EDT.
Sunshine
In September, the average sunshine in Dexter is 8.1h.UV index
In September, the average daily maximum UV index in Dexter is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 4 in September translates into this advice:
Ensure safety - Recommendations to avert sunburn are presented. To avoid the Sun's strongest rays, limit exposure around the mid-day period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
What is the temperature in September in Dexter?
What is the average humidity in September in Dexter?
How much does it rain in Dexter in September?
When it does not snow in Dexter?
Does it snow in Dexter in September?
How many hours of daylight does Dexter have in September?
When are sunrise and sunset in September in Dexter?
How long on average sun shines in September in Dexter?
What is the UV index intensity in September in Dexter?
Average temperature in September
Dexter, ME
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in September: 48.9°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in September
Dexter, 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
Dexter, ME
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Dexter, ME
- Average humidity in September: 78%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are May and November (77%).
Average rainfall in September
Dexter, ME
- Average rainfall in September: 1.06"
The wettest months (with the highest rainfall) are April, June and October (1.73").
The driest months (with the least rainfall) are February and March (0.91").
Average rainfall days in September
Dexter, ME
- Average rainfall days in September: 9.1 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Dexter, ME
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Dexter, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dexter, ME
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Dexter, ME
- Average sunshine days in September: 19 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in September
Dexter, 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, October, November and December (UV index 2).
Average cloud cover in September
Dexter, ME
- Average cloud cover in September: 40
The month with the most cloud cover is February (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 40).
Average visibility in September
Dexter, ME
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Dexter, Maine, USA
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