September weather forecast
Florence, MA

Weather in September

The first month of the autumn, September, is still a pleasant month in Florence, Massachusetts, with average temperature varying between 72°F (22.2°C) and 52.7°F (11.5°C).

Temperature

In Florence, the average high-temperature slightly decreases, from a moderately hot 79.3°F (26.3°C) in August, to an agreeable 72°F (22.2°C). In Florence, in September, the average low-temperature is 52.7°F (11.5°C).

Humidity

In Florence, the average relative humidity is 78%.

Rainfall

In Florence, during September, the rain falls for 10.3 days and regularly aggregates up to 0.98" (25mm) of precipitation. In Florence, during the entire year, the rain falls for 134.1 days and collects up to 14.84" (377mm) of precipitation.

Snowfall

In Florence, Massachusetts, snow does not fall in June through October.

Daylight

The average length of the day in Florence is 12.5h.

Sunshine

In September, the average sunshine in Florence is 8.7h.

UV index

In Florence, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to the UV radiation for ordinary individuals.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
[Resources]

FAQ

What is the average humidity in September in Florence?

The average relative humidity in September in Florence, Massachusetts, is 78%.

How many days does it rain in September in Florence?

In Florence, in September, it is raining for 10.3 days, with typically 0.98" (25mm) of accumulated precipitation.

When it does not snow in Florence?

June through October are months without snowfall in Florence, Massachusetts.

How many hours of daylight does Florence have in September?

In Florence, the average length of the day in September is 12.5h.

How long on average sun shines in September in Florence?

In September, the average sunshine in Florence, Massachusetts, is 8.7h.

How high is the UV index in September in Florence?

In September, the average daily maximum UV index in Florence, Massachusetts, is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV rays.

Average temperature in September
Florence, MA

Average temperature in September - Florence, MA
  • Average high temperature in September: 72°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (30.4°F).

  • Average low temperature in September: 52.7°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (18°F).

[Resources]

Average pressure in September
Florence, MA

Average pressure in September - Florence, MA
  • Average pressure in September: 30.06"

The month with the highest atmospheric pressure is November (30.08").
The month with the lowest atmospheric pressure is June (29.92").

[Resources]

Average wind speed in September
Florence, MA

Average wind speed in September - Florence, MA
  • Average wind speed in September: 5.5mph

The windiest months (with the highest average wind speed) are January, February and March (8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

[Resources]

Average humidity in September
Florence, MA

Average humidity in September - Florence, MA
  • Average humidity in September: 78%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (72%).

[Resources]

Average rainfall in September
Florence, MA

Average rainfall in September - Florence, MA
  • Average rainfall in September: 0.98"

The wettest month (with the highest rainfall) is October (1.61").
The driest month (with the least rainfall) is February (0.91").

[Resources]

Average rainfall days in September
Florence, MA

Average rainfall days in September - Florence, MA
  • Average rainfall days in September: 10.3 days

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (8.5 days).

[Resources]

Average snowfall in September
Florence, MA

Average snowfall in September - Florence, MA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.85").
Months with the least snowfall are June, July, August, September and October (0").

[Resources]

Average snowfall days in September
Florence, MA

Average snowfall days in September - Florence, MA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (7.7 days).
Months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight in September /
Average sunshine in September
Florence, MA

Average daylight in September / Average sunshine in September - Florence, MA
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in September: 8.7h

Months with the most sunshine are July and August (Average sunshine: 10.3h).
The month with the least sunshine is February (Average sunshine: 4.6h).

[Resources]

Average sunshine days in September
Florence, MA

Average sunshine days in September - Florence, MA
  • Average sunshine days in September: 17.1 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (13.7 days).

[Resources]

Average UV index in September
Florence, MA

Average UV index in September - Florence, MA
  • Average UV index in September: 4

Months with the highest UV index are June and July (UV index 6).
Months with the lowest UV index are January, February, March, October, November and December (UV index 2).

[Resources]

Average cloud cover in September
Florence, MA

Average cloud cover in September - Florence, MA
  • Average cloud cover in September: 37

Months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).

[Resources]

Average visibility in September
Florence, MA

Average visibility in September - Florence, MA
  • Average visibility in September: 5mi

Months with the highest visibility are January, March, April, November and December (6mi).
Months with the lowest visibility are February, May, June, July, August, September and October (5mi).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location