September weather forecast
Syracuse, NY

A water fountain in the Clinton Square in Syracuse, New York, with a view of towering historical buildings
A water fountain in the Clinton Square in Syracuse, New York, with a view of towering historical buildings

Weather in September

September, the first month of the autumn in Syracuse, is also an agreeable month, with an average temperature varying between 70.3°F (21.3°C) and 52.5°F (11.4°C).

Temperature

In Syracuse, the average high-temperature in September slightly decreases from a moderately hot 76.5°F (24.7°C) in August to an agreeable 70.3°F (21.3°C). In Syracuse, New York, the average low-temperature is 52.5°F (11.4°C).

Humidity

In September, the average relative humidity is 79%.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.2 days and typically collects 1.02" (26mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in September in Syracuse is 12h and 29min.
On the first day of September in Syracuse, New York, sunrise is at 6:29 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:47 pm EDT.

Sunshine

The average sunshine in September is 9h.

UV index

In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 3 in September transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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.
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FAQ

What is the average humidity in September in Syracuse?

The average relative humidity in September in Syracuse is 79%.

What is the driest month in Syracuse?

September is the month with the least rainfall in Syracuse, New York. Rain falls for 11.2 days and accumulates 1.02" (26mm) of precipitation.

How many days does it rain in September in Syracuse?

In Syracuse, in September, during 11.2 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

When it does not snow in Syracuse?

May through September are months without snowfall.

Does it snow in Syracuse in September?

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

How many hours of daylight does Syracuse have in September?

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

When are sunrise and sunset in September in Syracuse?

On the first day of September in Syracuse, New York, sunrise is at 6:29 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:47 pm EDT.

How many hours of sunshine does Syracuse have in September?

In September, the average sunshine duration is 9h.

What is the UV index intensity in September in Syracuse?

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

Average temperature in September
Syracuse, NY

Average temperature in September - Syracuse, NY
  • Average high temperature in September: 70.3°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (28.4°F).

  • Average low temperature in September: 52.5°F

The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

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Average pressure in September
Syracuse, NY

Average pressure in September - Syracuse, NY
  • Average pressure in September: 30.05"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).

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Average wind speed in September
Syracuse, NY

Average wind speed in September - Syracuse, NY
  • Average wind speed in September: 6.6mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

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Average humidity in September
Syracuse, NY

Average humidity in September - Syracuse, NY
  • Average humidity in September: 79%

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is April (78%).

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Average rainfall in September
Syracuse, NY

Average rainfall in September - Syracuse, NY
  • Average rainfall in September: 1.02"

The wettest month (with the highest rainfall) is May (1.77").
The driest month (with the least rainfall) is September (1.02").

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Average rainfall days in September
Syracuse, NY

Average rainfall days in September - Syracuse, NY
  • Average rainfall days in September: 11.2 days

The months with the highest number of rainy days are May and July (15 days).
The month with the least rainy days is January (6.7 days).

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Average snowfall in September
Syracuse, NY

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

The months with the highest snowfall are February and December (3.62").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Syracuse, NY

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

The month with the highest number of snowfall days is January (18.3 days).
The 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
Syracuse, NY

Average daylight in September / Average sunshine in September - Syracuse, NY
  • Average daylight in September: 12h and 29min

The month with the longest days is June (Average daylight: 15h and 19min).
The month with the shortest days is December (Average daylight: 9h and 4min).

  • Average sunshine in September: 9h

The month with the most sunshine is July (Average sunshine: 10.3h).
The month with the least sunshine is February (Average sunshine: 2.4h).

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Average sunshine days in September
Syracuse, NY

Average sunshine days in September - Syracuse, NY
  • Average sunshine days in September: 17.2 days

The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is February (7.2 days).

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Average UV index in September
Syracuse, NY

Average UV index in September - Syracuse, 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 and December (UV index 1).

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Average cloud cover in September
Syracuse, NY

Average cloud cover in September - Syracuse, NY
  • Average cloud cover in September: 35

The months with the most cloud cover are January and February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 32).

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Average visibility in September
Syracuse, NY

Average visibility in September - Syracuse, NY
  • Average visibility in September: 6mi

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

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