September weather forecastDenmark, ME
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Denmark, Maine, with an average temperature fluctuating between 49.5°F (9.7°C) and 70.3°F (21.3°C).Temperature
September marks a gentle change in average high-temperature, declining from August's warm 77.5°F (25.3°C) to a pleasant 70.3°F (21.3°C). An average nighttime temperature of 49.5°F (9.7°C) is observed during September.Humidity
In Denmark, the average relative humidity in September is 79%.Rainfall
September is the month with the least rainfall. Rain falls for 10.5 days and accumulates 1.34" (34mm) of precipitation.Snowfall
In Denmark, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 30min.On the first day of September in Denmark, sunrise is at 6:07 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:25 pm EDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 3 suggests this advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Denmark, ME
- Average high temperature in September: 70.3°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in September: 49.5°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 (12.2°F).
Average pressure in September
Denmark, ME
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Denmark, ME
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Denmark, ME
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, May and November (77%).
Average rainfall in September
Denmark, ME
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is October (3.15").
The driest month (with the least rainfall) is September (1.34").
Average rainfall days in September
Denmark, ME
- Average rainfall days in September: 10.5 days
The months with the highest number of rainy days are April and July (14.3 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in September
Denmark, ME
- Average snowfall in September: 0"
The month with the highest snowfall is February (9.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Denmark, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Denmark, ME
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Denmark, ME
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is January (17.8 days).
The month with the least sunshine days is April (12.3 days).
Average UV index in September
Denmark, ME
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
Denmark, ME
- Average cloud cover in September: 36
The months with the most cloud cover are March and April (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Denmark, ME
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
