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
With September's onset, the weather reveals a slight temperature decrease, transitioning from a pleasant 71.8°F (22.1°C) in August to a refreshing 64.4°F (18°C). The average temperature during September nights is registered at a frosty 45°F (7.2°C).Humidity
The average relative humidity in September is 82%.Rainfall
In Bald Mountain, in September, it is raining for 13.5 days, with typically 2.6" (66mm) of accumulated precipitation. In Bald Mountain, during the entire year, the rain falls for 152.5 days and collects up to 30.31" (770mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 31min.On the first day of the month, sunrise is at 6:06 am and sunset at 7:19 pm. On the last day of September, sunrise is at 6:40 am and sunset at 6:25 pm EDT.
Sunshine
The average sunshine in September is 7.6h.UV index
The average daily maximum UV index in September in Bald Mountain is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 3 during September translates into the following guidance:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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 much 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?
What time are sunrise and sunset in September in Bald Mountain?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Bald Mountain, ME
- Average high temperature in September: 64.4°F
The warmest month (with the highest average high temperature) is July (73.9°F).
The month with the lowest average high temperature is January (20.8°F).
- Average low temperature in September: 45°F
The month with the highest average low temperature is July (52.9°F).
The coldest month (with the lowest average low temperature) is January (7°F).
Average pressure in September
Bald Mountain, 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
Bald Mountain, ME
- Average wind speed in September: 5.5mph
The windiest months (with the highest average wind speed) are February, March and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Bald Mountain, ME
- Average humidity in September: 82%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (77%).
Average rainfall in September
Bald Mountain, ME
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is October (3.23").
The driest month (with the least rainfall) is January (2.13").
Average rainfall days in September
Bald Mountain, ME
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in September
Bald Mountain, ME
- Average snowfall in September: 0"
The month with the highest snowfall is February (14.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Bald Mountain, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (22.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bald Mountain, 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 6min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in September
Bald Mountain, ME
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (5.6 days).
Average UV index in September
Bald Mountain, 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 February, March and December (UV index 1).
Average cloud cover in September
Bald Mountain, ME
- Average cloud cover in September: 48
The month with the most cloud cover is February (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 46).
Average visibility in September
Bald Mountain, ME
- Average visibility in September: 4mi
The months with the highest visibility are May and June (5mi).
The months with the lowest visibility are January, February, March, April, July, August, September, October, November and December (4mi).
Bald Mountain, Maine, USA
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