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
As Franklin enters September, the average high-temperature subtly lowers from the a warm 81°F (27.2°C) of August to a pleasant 73°F (22.8°C). Franklin's nights in September cool down to an average low-temperature of 55.8°F (13.2°C).Humidity
In September, the average relative humidity in Franklin is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 9.4 days and typically collects 0.55" (14mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Franklin, Massachusetts, is 12h and 28min.On the first day of the month, sunrise is at 6:11 am and sunset at 7:18 pm. On the last day of September, in Franklin, sunrise is at 6:42 am and sunset at 6:28 pm EDT.
Sunshine
In Franklin, the average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September in Franklin, Massachusetts, is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Frequently asked questions
What is the average September temperature in Franklin?
What is the average humidity in September in Franklin?
What is the driest month in Franklin?
How much does it rain in Franklin in September?
When it does not snow in Franklin?
Does it snow in Franklin in September?
What is the average length of the day in September in Franklin?
When is the sunrise / sunset in September in Franklin?
How many hours of sunshine does Franklin have in September?
How high is the UV index in September in Franklin?
Average temperature in September
Franklin, MA
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in September: 55.8°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in September
Franklin, MA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Franklin, MA
- Average wind speed in September: 6.3mph
The windiest months (with the highest average wind speed) are January, February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in September
Franklin, MA
- Average humidity in September: 78%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in September
Franklin, MA
- Average rainfall in September: 0.55"
The wettest month (with the highest rainfall) is July (1.18").
The driest month (with the least rainfall) is September (0.55").
Average rainfall days in September
Franklin, MA
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in September
Franklin, MA
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Franklin, MA
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Franklin, MA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Franklin, MA
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (14.6 days).
Average UV index in September
Franklin, MA
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Franklin, MA
- Average cloud cover in September: 39
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Franklin, MA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, October, November and December (6mi).
The months with the lowest visibility are June, July, August and September (5mi).
Franklin, Massachusetts, USA
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