September weather forecast
Thornton Grove, NY

Weather in September

The first month of the autumn, September, is still a pleasant month in Thornton Grove, New York, with average temperature ranging between max 70.2°F (21.2°C) and min 51.6°F (10.9°C).

Temperature

In Thornton Grove, New York, the average high-temperature in September marginally drops, from a warm 76.5°F (24.7°C) in August, to a pleasant 70.2°F (21.2°C). In Thornton Grove, the average low-temperature is 51.6°F (10.9°C).

Humidity

In September, the average relative humidity is 80%.

Rainfall

September is the month with the least rainfall in Thornton Grove. Rain falls for 10.5 days and accumulates 0.67" (17mm) of precipitation.

Snowfall

June through September are months without snowfall in Thornton Grove.

Daylight

The average length of the day in Thornton Grove, New York, is 12.5h.

Sunshine

The average sunshine is 8.9h.

UV index

In Thornton Grove, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
[Resources]

FAQ

What is the average humidity in September in Thornton Grove?

In Thornton Grove, the average relative humidity in September is 80%.

What is the driest month in Thornton Grove?

September is the month with the least rainfall. Rain falls for 10.5 days and accumulates 0.67" (17mm) of precipitation.

How many days does it rain in September in Thornton Grove?

In Thornton Grove, in September, during 10.5 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

When it does not snow in Thornton Grove?

In Thornton Grove, New York, snow does not fall in June through September.

Does it snow in Thornton Grove in September?

In Thornton Grove, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Thornton Grove have in September?

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

How long on average sun shines in September in Thornton Grove?

The average sunshine in September in Thornton Grove, New York, is 8.9h.

What is the UV index intensity in September in Thornton Grove?

In Thornton Grove, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in September
Thornton Grove, NY

Average temperature in September - Thornton Grove, NY
  • Average high temperature in September: 70.2°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 (27.9°F).

  • Average low temperature in September: 51.6°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

[Resources]

Average pressure in September
Thornton Grove, NY

Average pressure in September - Thornton Grove, NY
  • Average pressure in September: 30.06"

The month with the highest atmospheric pressure is November (30.09").
The month with the lowest atmospheric pressure is June (29.93").

[Resources]

Average wind speed in September
Thornton Grove, NY

Average wind speed in September - Thornton Grove, NY
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6mph).

[Resources]

Average humidity in September
Thornton Grove, NY

Average humidity in September - Thornton Grove, NY
  • Average humidity in September: 80%

The month with the highest relative humidity is February (88%).
Months with the lowest relative humidity are April and May (79%).

[Resources]

Average rainfall in September
Thornton Grove, NY

Average rainfall in September - Thornton Grove, NY
  • Average rainfall in September: 0.67"

The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is September (0.67").

[Resources]

Average rainfall days in September
Thornton Grove, NY

Average rainfall days in September - Thornton Grove, NY
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is February (6.7 days).

[Resources]

Average snowfall in September
Thornton Grove, NY

Average snowfall in September - Thornton Grove, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is February (3.74").
Months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in September
Thornton Grove, NY

Average snowfall days in September - Thornton Grove, NY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (18.1 days).
Months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight in September /
Average sunshine in September
Thornton Grove, NY

Average daylight in September / Average sunshine in September - Thornton Grove, NY
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in September: 8.9h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is February (Average sunshine: 2.5h).

[Resources]

Average sunshine days in September
Thornton Grove, NY

Average sunshine days in September - Thornton Grove, NY
  • Average sunshine days in September: 17.1 days

The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is February (7.9 days).

[Resources]

Average UV index in September
Thornton Grove, NY

Average UV index in September - Thornton Grove, NY
  • 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 February and December (UV index 1).

[Resources]

Average cloud cover in September
Thornton Grove, NY

Average cloud cover in September - Thornton Grove, NY
  • Average cloud cover in September: 36

The month with the most cloud cover is February (Cloud cover 74).
Months with the least cloud cover are July and August (Cloud cover 33).

[Resources]

Average visibility in September
Thornton Grove, NY

Average visibility in September - Thornton Grove, NY
  • Average visibility in September: 6mi

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