September weather forecast and climate
North Grosvenor Dale, CT

Weather in September

September, the first month of the autumn, in North Grosvenor Dale, is still a pleasant month, with temperature in the range of an average low of 53.8°F (12.1°C) and an average high of 72°F (22.2°C).

Temperature

In September, the average high-temperature slightly decreases, from a warm 79.5°F (26.4°C) in August, to an agreeable 72°F (22.2°C). The average low-temperature, in September, is 53.8°F (12.1°C).

Humidity

In North Grosvenor Dale, the average relative humidity is 79%.

Rainfall

The month with the least rainfall is September when the rain falls for 12.4 days and typically collects 1.81" (46mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In North Grosvenor Dale, Connecticut, the average length of the day is 12.5h.

Sunshine

The average sunshine in September is 8h.

UV index

The average daily maximum UV index in North Grosvenor Dale, Connecticut, is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions - Protection against sunburn is recommended. 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.
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FAQ

What is the temperature in September in North Grosvenor Dale?

In September, the average high-temperature is 72°F (22.2°C), and the average low-temperature is 53.8°F (12.1°C).

What is the average humidity in September in North Grosvenor Dale?

The average relative humidity in September in North Grosvenor Dale, Connecticut, is 79%.

How much does it rain in North Grosvenor Dale in September?

In North Grosvenor Dale, in September, during 12.4 rainfall days, 1.81" (46mm) of precipitation is typically accumulated.

What is the driest month in North Grosvenor Dale?

September is the month with the least rainfall. Rain falls for 12.4 days and accumulates 1.81" (46mm) of precipitation.

Does it snow in North Grosvenor Dale in September?

In North Grosvenor Dale, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in North Grosvenor Dale?

In North Grosvenor Dale snow does not fall in June through September.

How many hours of daylight does North Grosvenor Dale have in September?

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

How long on average sun shines in September in North Grosvenor Dale?

In September, the average sunshine in North Grosvenor Dale is 8h.

What is the UV index intensity in September in North Grosvenor Dale?

In North Grosvenor Dale, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV radiation.

Average temperature in September
North Grosvenor Dale, CT

Average temperature in September - North Grosvenor Dale, CT
  • Average high temperature in September: 72°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in September: 53.8°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).

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Average pressure in September
North Grosvenor Dale, CT

Average pressure in September - North Grosvenor Dale, CT
  • 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 (29.93").

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Average wind speed in September
North Grosvenor Dale, CT

Average wind speed in September - North Grosvenor Dale, CT
  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in September
North Grosvenor Dale, CT

Average humidity in September - North Grosvenor Dale, CT
  • Average humidity in September: 79%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in September
North Grosvenor Dale, CT

Average rainfall in September - North Grosvenor Dale, CT
  • Average rainfall in September: 1.81"

The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is September (1.81").

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Average rainfall days in September
North Grosvenor Dale, CT

Average rainfall days in September - North Grosvenor Dale, CT
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is July (16.3 days).
Months with the least rainy days are January and February (7.8 days).

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Average snowfall in September
North Grosvenor Dale, CT

Average snowfall in September - North Grosvenor Dale, CT
  • Average snowfall in September: 0"

Months with the highest snowfall are February and March (5.08").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
North Grosvenor Dale, CT

Average snowfall days in September - North Grosvenor Dale, CT
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is March (9.1 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
North Grosvenor Dale, CT

Average daylight in September / Average sunshine in September - North Grosvenor Dale, CT
  • 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: 9.2h).

  • Average sunshine in September: 8h

The month with the most sunshine is August (Average sunshine: 10h).
The month with the least sunshine is February (Average sunshine: 4.5h).

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Average sunshine days in September
North Grosvenor Dale, CT

Average sunshine days in September - North Grosvenor Dale, CT
  • Average sunshine days in September: 15.9 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is July (12.9 days).

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Average UV index in September
North Grosvenor Dale, CT

Average UV index in September - North Grosvenor Dale, CT
  • 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, November and December (UV index 2).

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Average cloud cover in September
North Grosvenor Dale, CT

Average cloud cover in September - North Grosvenor Dale, CT
  • Average cloud cover in September: 42

The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 37).

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Average visibility in September
North Grosvenor Dale, CT

Average visibility in September - North Grosvenor Dale, CT
  • Average visibility in September: 5mi

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

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