Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September witnesses a gentle descent in average high-temperature, descending from August's agreeable 73°F (22.8°C) to an enjoyable 65.1°F (18.4°C). An average low-temperature of 45.9°F (7.7°C) is expected during September.Humidity
In September, the average relative humidity is 80%.Rainfall
In Rockwood, in September, it is raining for 11.4 days, with typically 1.69" (43mm) of accumulated precipitation. In Rockwood, during the entire year, the rain falls for 143.8 days and collects up to 24.41" (620mm) of precipitation.Snowfall
In Rockwood, Maine, 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 6:36 am and sunset at 6:20 pm EDT.
Sunshine
In Rockwood, the average sunshine in September is 7.6h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Rockwood have in September?
How high is the UV index in September?
Average temperature in September
Rockwood, ME
- Average high temperature in September: 65.1°F
The warmest month (with the highest average high temperature) is July (74.5°F).
The month with the lowest average high temperature is January (20.3°F).
- Average low temperature in September: 45.9°F
The month with the highest average low temperature is July (54.3°F).
The coldest month (with the lowest average low temperature) is January (7.7°F).
Average pressure in September
Rockwood, ME
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Rockwood, ME
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in September
Rockwood, 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 (76%).
Average rainfall in September
Rockwood, ME
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is June (2.64").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days in September
Rockwood, ME
- Average rainfall days in September: 11.4 days
The months with the highest number of rainy days are May and June (16.9 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in September
Rockwood, ME
- Average snowfall in September: 0"
The month with the highest snowfall is December (9.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Rockwood, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (20 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rockwood, ME
- Average daylight in September: 12h and 3min
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 4min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).
Average sunshine days in September
Rockwood, ME
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is September (15.9 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in September
Rockwood, 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
Rockwood, ME
- Average cloud cover in September: 44
The month with the most cloud cover is February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 43).
Average visibility in September
Rockwood, ME
- Average visibility in September: 5mi
The months with the highest visibility are May, June, July, September, October and November (5mi).
The months with the lowest visibility are January, February, March, April, August and December (4mi).
Rockwood, Maine, USA
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