September weather forecast
North Truro, MA

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Weather in September

September, the first month of the autumn in North Truro, is still a refreshing month, with an average temperature fluctuating between 61.9°F (16.6°C) and 66.4°F (19.1°C).

Temperature

As August makes way for September, North Truro's average high-temperature eases from an agreeable 71.8°F (22.1°C) to a comfortable 66.4°F (19.1°C). North Truro experiences a subtle drop in temperature during the September nights, recording an average of 61.9°F (16.6°C).

Humidity

In September, the average relative humidity is 80%.

Rainfall

The month with the least rainfall is September, when the rain falls for 12.7 days and typically collects 2.17" (55mm) of precipitation.

Snowfall

May through October are months without snowfall in North Truro.

Daylight

In North Truro, the average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:06 am and sunset at 7:13 pm. On the last day of September, sunrise is at 6:37 am and sunset at 6:23 pm EDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 4 during September translates into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun.

Frequently asked questions

What is the temperature in September?

The high-temperature, in September, in North Truro, records 66.4°F (19.1°C), while the low-temperature is 61.9°F (16.6°C).

What is the average humidity in September?

In North Truro, the average relative humidity in September is 80%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 12.7 days and accumulates 2.17" (55mm) of precipitation.

How much does it rain in September?

In North Truro, in September, during 12.7 rainfall days, 2.17" (55mm) of precipitation is typically accumulated.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does North Truro have in September?

In North Truro, Massachusetts, the average day length in September is 12h and 28min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:06 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 6:23 pm EDT.

How long on average sun shines in September?

In North Truro, the average sunshine duration in September is 8.6h.

What is the UV index intensity in September?

In North Truro, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
North Truro, MA

Average temperature in September - North Truro, MA
  • Average high temperature in September: 66.4°F

The warmest month (with the highest average high temperature) is August (71.8°F).
The month with the lowest average high temperature is January (37.6°F).

  • Average low temperature in September: 61.9°F

The month with the highest average low temperature is August (66.7°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

Average pressure in September
North Truro, MA

Average pressure in September - North Truro, MA
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
North Truro, MA

Average wind speed in September - North Truro, MA
  • Average wind speed in September: 12.6mph

The windiest month (with the highest average wind speed) is January (17.8mph).
The calmest month (with the lowest average wind speed) is August (10.9mph).

Average humidity in September
North Truro, MA

Average humidity in September - North Truro, MA
  • Average humidity in September: 80%

The months with the highest relative humidity are June and July (84%).
The month with the lowest relative humidity is November (74%).

Average rainfall in September
North Truro, MA

Average rainfall in September - North Truro, MA
  • Average rainfall in September: 2.17"

The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days in September
North Truro, MA

Average rainfall days in September - North Truro, MA
  • Average rainfall days in September: 12.7 days

The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is February (8.6 days).

Average snowfall in September
North Truro, MA

Average snowfall in September - North Truro, MA
  • Average snowfall in September: 0"

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

Average snowfall days in September
North Truro, MA

Average snowfall days in September - North Truro, MA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
North Truro, MA

Average daylight in September / Average sunshine in September - North Truro, 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 4min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).

Average sunshine days in September
North Truro, MA

Average sunshine days in September - North Truro, MA
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is July (12.6 days).

Average UV index in September
North Truro, MA

Average UV index in September - North Truro, MA
  • Average UV index in September: 4

The month with the highest UV index is July (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
North Truro, MA

Average cloud cover in September - North Truro, MA
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in September
North Truro, MA

Average visibility in September - North Truro, MA
  • Average visibility in September: 6mi

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

North Truro, Massachusetts, USA

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