Oswego
New York, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Oswego, NY

A unique view of the colorful sun rising over a calm marina in Oswego, New York, with a view of numerous boats and yachts docked along several piers
A unique view of the colorful sun rising over a calm marina in Oswego, New York, with a view of numerous boats and yachts docked along several piers
September, the first month of the autumn, in Oswego, is also an agreeable month, with average temperature fluctuating between 54.5°F (12.5°C) and 70.3°F (21.3°C).

Temperature

In Oswego, the average high-temperature slightly decreases, from a moderately hot 78.1°F (25.6°C) in August, to a pleasant 70.3°F (21.3°C). The average low-temperature, in September, is 54.5°F (12.5°C).

Rainfall

In September, in Oswego, the rain falls for 12.3 days. Throughout September, 4.1" (104.1mm) of precipitation is accumulated. In Oswego, during the entire year, the rain falls for 175.1 days and collects up to 42.5" (1078.4mm) of precipitation.

Snowfall

In Oswego, in September, it doesn't snow. In October, it regularly snows. Throughout the year, in Oswego, New York, 141" (3581.4mm) of snow is accumulated.

Ocean temperature

In September, the average ocean temperature in Oswego is 68.5°F (20.3°C).
For swimming, a surface water temperature of 68.5°F (20.3°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

Daylight

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

What is the temperature in September in Oswego?

In September, in Oswego, the average high-temperature is 70.3°F (21.3°C), and the average low-temperature is 54.5°F (12.5°C).

How much does it rain in Oswego in September?

In Oswego, New York, in September, during 12.3 rainfall days, 4.1" (104.1mm) of precipitation is typically accumulated.

Does it snow in Oswego in September?

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

What is the ocean temperature in September in Oswego?

In Oswego, in September, the average water temperature is 68.5°F (20.3°C). For swimming, a surface water temperature of 68.5°F (20.3°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

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

In September, the average length of the day in Oswego, New York, is 12.5h.
Average temperature in September - Oswego, NY
  • Average high temperature in September: 70.4°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in September: 54.5°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).

Average rainfall in September - Oswego, NY
  • Average rainfall in September: 4.1"

The wettest month (with the highest rainfall) is November (4.4").
The driest month (with the lowest rainfall) is February (2.8").

Average rainfall days in September - Oswego, NY
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is January (20.4 days).
The month with the lowest number of rainy days is July (10.6 days).

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

The month with the highest snowfall is January (45.6").
Months with the lowest snowfall are May, June, July, August and September (0").

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

The month with the highest number of snowfall days is January (19.4 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average sea temperature in September - Oswego, NY
  • Average sea temperature in September: 68.5°F

The best month for swimming (with the highest average sea temperature) is August (73.2°F).
The coldest month (with the lowest average sea temperature) is March (35.4°F).

Average daylight in September - Oswego, NY
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.4h).
The month with shortest days is December (Average daylight: 9h).