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 sea temperature 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
A subtle shift in Franklin's weather is observed as August turns into September, with the average high temperature reducing from a warm 75.4°F (24.1°C) to a pleasant 68.2°F (20.1°C). During September, Franklin's temperature averages to a cool 51.6°F (10.9°C) at night.Humidity
In Franklin, the average relative humidity in September is 78%.Rainfall
In September, the rain falls for 10.3 days. Throughout September, 1.54" (39mm) of precipitation is accumulated. In Franklin, during the entire year, the rain falls for 137 days and collects up to 24.96" (634mm) of precipitation.Snowfall
June through September are months without snowfall.Ocean temperature
In Franklin, in September, the average water temperature is 55.8°F (13.2°C).Note: With an efficient thermal swimsuit, one can navigate 55.8°F (13.2°C) even if it's colder than 50°F (10°C); otherwise, rapid cold shock and breathlessness might set in. Barely wading at 55.4°F (13°C) feels chilly.
Daylight
In September, the average length of the day is 12h and 31min.On the first day of the month, sunrise is at 5:56 am and sunset at 7:09 pm. On the last day of September, sunrise is at 6:30 am and sunset at 6:14 pm EDT.
Sunshine
The average sunshine in September in Franklin is 8.1h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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 water temperature in September?
How many hours of daylight does Franklin have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Franklin have in September?
How high is the UV index in September?
Average temperature in September
Franklin, ME
- Average high temperature in September: 68.2°F
The warmest months (with the highest average high temperature) are July and August (75.4°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in September: 51.6°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in September
Franklin, ME
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Franklin, ME
- Average wind speed in September: 6.5mph
The windiest months (with the highest average wind speed) are January and March (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in September
Franklin, ME
- Average humidity in September: 78%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Franklin, ME
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is July (1.3").
Average rainfall days in September
Franklin, ME
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is April (15.3 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in September
Franklin, ME
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Franklin, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Franklin, ME
- Average sea temperature in September: 55.6°F
The best month for swimming (with the highest average sea temperature) is August (56.8°F).
The coldest month (with the lowest average sea temperature) is March (38°F).
Average daylight in September /
Average sunshine in September
Franklin, ME
- Average daylight in September: 12h and 3min
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 54min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in September
Franklin, ME
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is September (18.1 days).
The month with the least sunshine days is April (11.9 days).
Average UV index in September
Franklin, ME
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Franklin, ME
- Average cloud cover in September: 38
The month with the most cloud cover is February (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 38).
Average visibility in September
Franklin, ME
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).
Franklin, Maine, USA
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