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, Stetson sees a gentle drop in the average high-temperature, transitioning from a warm 76.5°F (24.7°C) to an agreeable 68.9°F (20.5°C). An average nighttime temperature of 48.9°F (9.4°C) is witnessed throughout September.Humidity
In Stetson, Maine, the average relative humidity in September is 78%.Rainfall
In Stetson, in September, it is raining for 9.1 days, with typically 1.06" (27mm) of accumulated precipitation. Throughout the year, there are 120.7 rainfall days, and 15.79" (401mm) of precipitation is accumulated.Snowfall
In Stetson, Maine, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 31min.On the first day of the month, sunrise is at 5:59 am and sunset at 7:13 pm. On the last day of September, sunrise is at 6:34 am and sunset at 6:18 pm EDT.
Sunshine
In Stetson, the average sunshine in September is 8.1h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Stetson in September?
What is the average humidity in September in Stetson?
How many days does it rain in September in Stetson?
When it does not snow in Stetson?
Does it snow in Stetson in September?
What is the average length of the day in September in Stetson?
When is the sunrise / sunset in September in Stetson?
How long on average sun shines in September in Stetson?
How high is the UV index in September in Stetson?
Average temperature in September
Stetson, 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
Stetson, 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
Stetson, 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
Stetson, 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
Stetson, 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
Stetson, 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
Stetson, 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
Stetson, 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
Stetson, 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 48min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Stetson, 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
Stetson, 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
Stetson, 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
Stetson, 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).
Stetson, Maine, USA
Weather forecast for your location
2. Allow the app to use your location