September weather forecast and climate
Watertown, NY

What is the temperature in September in Watertown?

The average high-temperature, in September, is 70.9°F (21.6°C), while the average low-temperature is 51.6°F (10.9°C).

How much does it rain in Watertown in September?

In September, in Watertown, New York, the rain falls for 12.2 days. Throughout September, 4.2" (107.2mm) of precipitation is accumulated.

Does it snow in Watertown in September?

In Watertown, New York, in September, it doesn't snow. In October, it regularly snows.
Average temperature in September - Watertown, NY
  • Average high temperature in September: 70.9°F

The warmest month (with the highest average high temperature) is July (79.6°F).
The month with the lowest average high temperature is January (28.3°F).

  • Average low temperature in September: 51.7°F

The month with the highest average low temperature is July (61.4°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).

Average rainfall in September - Watertown, NY
  • Average rainfall in September: 4.2"

The wettest month (with the highest rainfall) is November (4.6").
The driest month (with the lowest rainfall) is February (2.6").

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

Months with the highest number of rainy days are January and December (17.2 days).
The month with the lowest number of rainy days is July (10.5 days).

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

The month with the highest snowfall is December (31.6").
Months with the lowest snowfall are May, June, July, August and September (0").

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

The month with the highest number of snowfall days is January (11.9 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average daylight in September - Watertown, 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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