September weather forecastDyer Brook, ME
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Dyer Brook, Maine, with an average temperature fluctuating between 66.4°F (19.1°C) and 47.1°F (8.4°C).Temperature
A moderate decline in average high-temperatures is noted in September, moving from a warm 74.5°F (23.6°C) in August to an enjoyable 66.4°F (19.1°C). An average low-temperature of 47.1°F (8.4°C) is anticipated throughout the nights in Dyer Brook during September.Humidity
In September, the average relative humidity is 80%.Rainfall
In Dyer Brook, in September, during 12.6 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, there are 147.4 rainfall days, and 31.81" (808mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 5:54 am and sunset at 7:10 pm. On the last day of September, sunrise is at 6:30 am and sunset at 6:14 pm EDT.
Sunshine
In September, the average sunshine is 7.4h.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 3 in September transforms into this advice:
Heed the precautions - Suggestions to avoid sunburn are made. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dyer Brook, ME
- Average high temperature in September: 66.4°F
The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (21.9°F).
- Average low temperature in September: 47.1°F
The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is January (7.7°F).
Average pressure in September
Dyer Brook, ME
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is September (30.03"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Dyer Brook, ME
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in September
Dyer Brook, ME
- Average humidity in September: 80%
The months with the highest relative humidity are January, February and March (91%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Dyer Brook, ME
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is July (2.17").
Average rainfall days in September
Dyer Brook, ME
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Dyer Brook, ME
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (13.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Dyer Brook, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (19.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dyer Brook, ME
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 7h and 24min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).
Average sunshine days in September
Dyer Brook, 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 April (8.7 days).
Average UV index in September
Dyer Brook, ME
- Average UV index in September: 3
The months with the highest UV index are June and 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
Dyer Brook, ME
- Average cloud cover in September: 44
The month with the most cloud cover is February (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 42).
Average visibility in September
Dyer Brook, ME
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March and December (4mi).
