September weather forecast
Colonie, NY

Share

Weather in September

The first month of the autumn, September, is still a pleasant month in Colonie, New York, with temperature in the range of an average low of 51.8°F (11°C) and an average high of 71.4°F (21.9°C).

Temperature

Transition into September subtly marks a drop in the average high-temperature, moderately moving from a warm 79.3°F (26.3°C) in August to a pleasant 71.4°F (21.9°C). The temperature lowers to an average of 51.8°F (11°C) during September nights.

Humidity

The average relative humidity in September is 77%.

Rainfall

In Colonie, during September, the rain falls for 12.2 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, in Colonie, there are 170.2 rainfall days, and 32.91" (836mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in September in Colonie is 12h and 29min.
On the first day of the month, sunrise is at 6:20 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:37 pm EDT.

Sunshine

In Colonie, the average sunshine in September 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 health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, an average UV index of 3 transforms into the following instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
[Resources]

Frequently asked questions

What is the temperature in September in Colonie?

September temperatures in Colonie vary between a high-temperature of 71.4°F (21.9°C) and a low-temperature of 51.8°F (11°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in July is calculated to be 86°F (30°C).

What is the average humidity in September in Colonie?

In September, the average relative humidity in Colonie is 77%.

How much does it rain in Colonie in September?

In Colonie, in September, it is raining for 12.2 days, with typically 2.24" (57mm) of accumulated precipitation.

When it does not snow in Colonie?

June through September are months without snowfall.

Does it snow in Colonie in September?

In Colonie, New York, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Colonie have in September?

In Colonie, New York, the average day length in September is 12h and 29min.

What time are sunrise and sunset in September in Colonie?

On the first day of September in Colonie, New York, sunrise is at 6:20 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:37 pm EDT.

How many hours of sunshine does Colonie have in September?

In September, the average sunshine duration in Colonie, New York, is 9.1h.

How high is the UV index in September in Colonie?

The average daily maximum UV index in September in Colonie is 3. A UV Index reading of 3 to 5 represents a medium health risk 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
Colonie, NY

Average temperature in September - Colonie, NY
  • Average high temperature in September: 71.4°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (28.6°F).

  • Average low temperature in September: 51.8°F

The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

[Resources]

Average pressure in September
Colonie, NY

Average pressure in September - Colonie, 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).

[Resources]

Average wind speed in September
Colonie, NY

Average wind speed in September - Colonie, NY
  • Average wind speed in September: 5.5mph

The windiest months (with the highest average wind speed) are January and February (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

[Resources]

Average humidity in September
Colonie, NY

Average humidity in September - Colonie, NY
  • Average humidity in September: 77%

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

[Resources]

Average rainfall in September
Colonie, NY

Average rainfall in September - Colonie, NY
  • Average rainfall in September: 2.24"

The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is March (2.17").

[Resources]

Average rainfall days in September
Colonie, NY

Average rainfall days in September - Colonie, NY
  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (9.3 days).

[Resources]

Average snowfall in September
Colonie, NY

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

The month with the highest snowfall is February (8.15").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in September
Colonie, NY

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

The months with the highest number of snowfall days are January and February (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

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

Average daylight in September / Average sunshine in September - Colonie, 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 months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

[Resources]

Average sunshine days in September
Colonie, NY

Average sunshine days in September - Colonie, NY
  • Average sunshine days in September: 14.6 days

The month with the most sunshine days is November (15.3 days).
The months with the least sunshine days are February and April (10.3 days).

[Resources]

Average UV index in September
Colonie, NY

Average UV index in September - Colonie, 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).

[Resources]

Average cloud cover in September
Colonie, NY

Average cloud cover in September - Colonie, 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).

[Resources]

Average visibility in September
Colonie, NY

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

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

[Resources]

Colonie, New York, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location