September weather forecast
Richmond, VT

Weather in September

September, the first month of the autumn, in Richmond, is still a pleasant month, with average temperature fluctuating between 69.3°F (20.7°C) and 49.1°F (9.5°C).

Temperature

In Richmond, the average high-temperature in September slightly decreases, from a warm 76.5°F (24.7°C) in August, to a pleasant 69.3°F (20.7°C). In Richmond, in September, the average low-temperature is 49.1°F (9.5°C).

Humidity

In September, the average relative humidity in Richmond is 79%.

Rainfall

September is the month with the least rainfall. Rain falls for 12 days and accumulates 1.77" (45mm) of precipitation.

Snowfall

In Richmond snow does not fall in June through September.

Daylight

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

Sunshine

In Richmond, the average sunshine is 8.7h.

UV index

In Richmond, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 3 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the average humidity in September in Richmond?

In September, the average relative humidity in Richmond, Vermont, is 79%.

What is the driest month in Richmond?

September is the month with the least rainfall in Richmond. Rain falls for 12 days and accumulates 1.77" (45mm) of precipitation.

How many days does it rain in September in Richmond?

In Richmond, during September, the rain falls for 12 days and regularly aggregates up to 1.77" (45mm) of precipitation.

When it does not snow in Richmond?

June through September are months without snowfall in Richmond.

Does it snow in Richmond in September?

In Richmond, Vermont, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Richmond?

The average length of the day in September in Richmond, Vermont, is 12.5h.

How long on average sun shines in September in Richmond?

The average sunshine in September is 8.7h.

What is the UV index reading in September in Richmond?

The average daily maximum UV index in September in Richmond is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV radiation.

Average temperature in September
Richmond, VT

Average temperature in September - Richmond, VT
  • Average high temperature in September: 69.3°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in September: 49.1°F

The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (12°F).

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Average pressure in September
Richmond, VT

Average pressure in September - Richmond, VT
  • Average pressure in September: 30.05"

The month with the highest atmospheric pressure is November (30.07").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in September
Richmond, VT

Average wind speed in September - Richmond, VT
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in September
Richmond, VT

Average humidity in September - Richmond, VT
  • Average humidity in September: 79%

Months with the highest relative humidity are January and February (87%).
Months with the lowest relative humidity are April and May (76%).

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Average rainfall in September
Richmond, VT

Average rainfall in September - Richmond, VT
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days in September
Richmond, VT

Average rainfall days in September - Richmond, VT
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is February (6.2 days).

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Average snowfall in September
Richmond, VT

Average snowfall in September - Richmond, VT
  • Average snowfall in September: 0"

The month with the highest snowfall is February (11.73").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Richmond, VT

Average snowfall days in September - Richmond, VT
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (20.7 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
Richmond, VT

Average daylight in September / Average sunshine in September - Richmond, VT
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.5h).
The month with the shortest days is December (Average daylight: 8.9h).

  • Average sunshine in September: 8.7h

The month with the most sunshine is July (Average sunshine: 10.2h).
The month with the least sunshine is February (Average sunshine: 2.8h).

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Average sunshine days in September
Richmond, VT

Average sunshine days in September - Richmond, VT
  • Average sunshine days in September: 15.9 days

The month with the most sunshine days is September (15.9 days).
The month with the least sunshine days is February (6.8 days).

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Average UV index in September
Richmond, VT

Average UV index in September - Richmond, VT
  • Average UV index in September: 3

Months with the highest UV index are May, June, July and August (UV index 5).
Months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in September
Richmond, VT

Average cloud cover in September - Richmond, VT
  • Average cloud cover in September: 37

The month with the most cloud cover is February (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 35).

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Average visibility in September
Richmond, VT

Average visibility in September - Richmond, VT
  • Average visibility in September: 5mi

Months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
Months with the lowest visibility are January, February and March (4mi).

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