September weather forecastTroutdale, ME
September
Weather in September
September, the first month of the autumn in Troutdale, is still a refreshing month, with an average temperature fluctuating between 46°F (7.8°C) and 65.5°F (18.6°C).Temperature
The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a pleasant 73°F (22.8°C) in August to a comfortable 65.5°F (18.6°C). Nighttime temperature dips to a mean of 46°F (7.8°C) during September.Humidity
The average relative humidity in September is 80%.Rainfall
In Troutdale, in September, it is raining for 12.5 days, with typically 2.44" (62mm) of accumulated precipitation. In Troutdale, during the entire year, the rain falls for 147.1 days and collects up to 34.65" (880mm) of precipitation.Snowfall
In Troutdale, 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 6:01 am and sunset at 7:16 pm. On the last day of September, sunrise is at 6:37 am and sunset at 6:21 pm EDT.
Sunshine
In September, the average sunshine is 7.4h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 3 during September translates into these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Troutdale, ME
- Average high temperature in September: 65.5°F
The warmest month (with the highest average high temperature) is July (74.8°F).
The month with the lowest average high temperature is January (20.8°F).
- Average low temperature in September: 46°F
The month with the highest average low temperature is July (54.5°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in September
Troutdale, ME
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are September and November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Troutdale, 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 (5.5mph).
Average humidity in September
Troutdale, ME
- Average humidity in September: 80%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Troutdale, ME
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is April (3.54").
The driest month (with the least rainfall) is February (2.24").
Average rainfall days in September
Troutdale, ME
- Average rainfall days in September: 12.5 days
The months with the highest number of rainy days are July and August (17.8 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in September
Troutdale, ME
- Average snowfall in September: 0"
The month with the highest snowfall is January (14.33").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Troutdale, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (20.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Troutdale, ME
- Average daylight in September: 12h and 30min
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: 7h and 24min
The month with the most sunshine is August (Average sunshine: 9h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).
Average sunshine days in September
Troutdale, ME
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is February (8.1 days).
Average UV index in September
Troutdale, ME
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Troutdale, ME
- Average cloud cover in September: 46
The month with the most cloud cover is February (Cloud cover 73).
The months with the least cloud cover are July and August (Cloud cover 45).
Average visibility in September
Troutdale, ME
- Average visibility in September: 4mi
The months with the highest visibility are May, July, October and November (5mi).
The months with the lowest visibility are January, February, March, April, June, August, September and December (4mi).
