September weather forecastBarnjum, ME
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Barnjum, Maine, with an average temperature fluctuating between 45.5°F (7.5°C) and 64.6°F (18.1°C).Temperature
The beginning of September brings a minor change in the average high-temperature, shifting from an agreeable 71.6°F (22°C) in August to an enjoyable 64.6°F (18.1°C). An average low-temperature of 45.5°F (7.5°C) is observed during the September nights.Humidity
In Barnjum, the average relative humidity in September is 81%.Rainfall
In Barnjum, during September, the rain falls for 10.9 days and regularly aggregates up to 1.81" (46mm) of precipitation. In Barnjum, during the entire year, the rain falls for 134.8 days and collects up to 19.33" (491mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows in Barnjum. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, there are 115.6 snowfall days, and 53.43" (1357mm) of snow is accumulated.Daylight
The average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 6:04 am and sunset at 7:18 pm. On the last day of September, sunrise is at 6:39 am and sunset at 6:23 pm EDT.
Sunshine
In Barnjum, the average sunshine in September is 7.6h.UV index
In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum UV index of 3 in September translates into the following recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Barnjum, ME
- Average high temperature in September: 64.6°F
The warmest month (with the highest average high temperature) is July (73°F).
The month with the lowest average high temperature is January (20.5°F).
- Average low temperature in September: 45.5°F
The month with the highest average low temperature is July (54.1°F).
The coldest month (with the lowest average low temperature) is January (7.3°F).
Average pressure in September
Barnjum, 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 (29.9"Hg).
Average wind speed in September
Barnjum, ME
- Average wind speed in September: 5.4mph
The windiest months (with the highest average wind speed) are January, February and March (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Barnjum, ME
- Average humidity in September: 81%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Barnjum, ME
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is June (2.13").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in September
Barnjum, ME
- Average rainfall days in September: 10.9 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in September
Barnjum, ME
- Average snowfall in September: 0.04"
The month with the highest snowfall is April (8.98").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Barnjum, ME
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is March (20.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Barnjum, 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 48min).
- Average sunshine in September: 7h and 36min
The months with the most sunshine are July and August (Average sunshine: 9h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 6min).
Average sunshine days in September
Barnjum, ME
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is September (15.2 days).
The months with the least sunshine days are February and April (8.7 days).
Average UV index in September
Barnjum, 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 and December (UV index 1).
Average cloud cover in September
Barnjum, ME
- Average cloud cover in September: 47
The month with the most cloud cover is February (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 46).
Average visibility in September
Barnjum, ME
- Average visibility in September: 4mi
The month with the highest visibility is November (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October and December (4mi).
