September weather forecastHampden Highlands, ME
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Hampden Highlands, Maine, with an average temperature fluctuating between 68.9°F (20.5°C) and 50°F (10°C).Temperature
The average high-temperature slightly decreases in September, shifting from a moderately hot 76.6°F (24.8°C) in August to an agreeable 68.9°F (20.5°C). During September, Hampden Highlands observes a consistent average nighttime temperature of 50°F (10°C).Humidity
The average relative humidity in September in Hampden Highlands is 79%.Rainfall
In Hampden Highlands, Maine, during September, the rain falls for 8.5 days and regularly aggregates up to 0.98" (25mm) of precipitation. Throughout the year, there are 125.4 rainfall days, and 13.78" (350mm) of precipitation is accumulated.Snowfall
In Hampden Highlands, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 5:58 am and sunset at 7:11 pm. On the last day of September, sunrise is at 6:32 am and sunset at 6:17 pm EDT.
Sunshine
In Hampden Highlands, the average sunshine in September is 8.2h.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 unprotected exposure to Sun's UV rays for ordinary individuals.Note: A typical high UV index of 4 in September suggests the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hampden Highlands, ME
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (26.4°F).
- Average low temperature in September: 50°F
The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure in September
Hampden Highlands, 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
Hampden Highlands, ME
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Hampden Highlands, ME
- Average humidity in September: 79%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April and May (77%).
Average rainfall in September
Hampden Highlands, ME
- Average rainfall in September: 0.98"
The wettest month (with the highest rainfall) is April (1.57").
The driest month (with the least rainfall) is July (0.79").
Average rainfall days in September
Hampden Highlands, ME
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is June (13.7 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in September
Hampden Highlands, ME
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.9").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Hampden Highlands, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Hampden Highlands, ME
- Average daylight in September: 12h and 30min
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 12min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in September
Hampden Highlands, ME
- Average sunshine days in September: 18.6 days
The month with the most sunshine days is September (18.6 days).
The month with the least sunshine days is April (12.5 days).
Average UV index in September
Hampden Highlands, 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
Hampden Highlands, ME
- Average cloud cover in September: 39
The month with the most cloud cover is February (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in September
Hampden Highlands, ME
- Average visibility in September: 5mi
The months with the highest visibility are October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August and September (5mi).
