September weather forecast
Troy, NY

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Weather in September

With the arrival of September, Troy begins transitioning into autumn, with temperatures taking a perceptible dip from the summer heat. From the high of August, the mercury falls to 71.4°F (21.9°C) as the fall climate slowly encapsulates the city. This early autumn period displays a beautiful blend of the remnants of summer warmth and the advancing mild chills of fall. This month becomes an artistic canvas painted with colors of the changing leaves. The cool air and lower humidity make for a perfect excursion into the outdoors.

Temperature

With the beginning of September, the average high-temperature shows a small decrease, transitioning from a moderately hot 79.3°F (26.3°C) in August to an agreeable 71.4°F (21.9°C). During September nights, Troy records an average temperature of 51.3°F (10.7°C).

Humidity

In Troy, the average relative humidity in September is 78%.

Rainfall

The month with the least rainfall is September, when the rain falls for 10.7 days and typically collects 1.93" (49mm) of precipitation.

Snowfall

In Troy, snow does not fall in June through September.

Daylight

In September, the average length of the day is 12h and 29min.
On the first day of the month, sunrise is at 6:20 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:51 am and sunset at 6:37 pm EDT.

Sunshine

In September, the average sunshine is 9.1h.

UV index

In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum UV index of 3 in September translates into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

An average high-temperature, in September, in Troy, is 71.4°F (21.9°C) and the average low-temperature is 51.3°F (10.7°C). In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 86°F (30°C).

What is the average humidity in September?

The average relative humidity in September is 78%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 10.7 days and typically collects 1.93" (49mm) of precipitation.

How much does it rain in September?

In Troy, in September, during 10.7 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.

When it does not snow?

In Troy, snow does not fall in June through September.

Does it snow in September?

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

How many hours of daylight does Troy have in September?

In Troy, the average day length in September is 12h and 29min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:20 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:37 pm EDT.

How many hours of sunshine does Troy have in September?

The average sunshine duration in September is 9.1h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
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
Troy, NY

Average temperature in September - Troy, NY
  • Average high temperature in September: 71.4°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 (28.8°F).

  • Average low temperature in September: 51.3°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

Average pressure in September
Troy, NY

Average pressure in September - Troy, NY
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Troy, NY

Average wind speed in September - Troy, NY
  • 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 (5.2mph).

Average humidity in September
Troy, NY

Average humidity in September - Troy, NY
  • Average humidity in September: 78%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (73%).

Average rainfall in September
Troy, NY

Average rainfall in September - Troy, NY
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is October (3.19").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in September
Troy, NY

Average rainfall days in September - Troy, NY
  • Average rainfall days in September: 10.7 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.1 days).

Average snowfall in September
Troy, NY

Average snowfall in September - Troy, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is February (7.64").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Troy, NY

Average snowfall days in September - Troy, NY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Troy, NY

Average daylight in September / Average sunshine in September - Troy, NY
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

Average sunshine days in September
Troy, NY

Average sunshine days in September - Troy, NY
  • Average sunshine days in September: 17.3 days

The month with the most sunshine days is September (17.3 days).
The month with the least sunshine days is April (10.6 days).

Average UV index in September
Troy, NY

Average UV index in September - Troy, NY
  • Average UV index in September: 3

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in September
Troy, NY

Average cloud cover in September - Troy, NY
  • Average cloud cover in September: 34

The month with the most cloud cover is February (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 32).

Average visibility in September
Troy, NY

Average visibility in September - Troy, NY
  • Average visibility in September: 5mi

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

Troy, New York, USA

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