September weather forecast and climate
Oswego, NY

What is the temperature in September in Oswego?

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

How much does it rain in Oswego in September?

In September, in Oswego, New York, the rain falls for 12.3 days. Throughout September, 4.1" (104.1mm) of precipitation is accumulated.

Does it snow in Oswego in September?

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

How cold is the water in September in Oswego?

In Oswego, New York, in September, the average water temperature is 68.5°F (20.3°C). For most, swimming in 68.5°F (20.3°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).
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).

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