Grimsby
Canada
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Grimsby, Canada

  • Average high temperature in September: 21.2°C

The warmest month (with the highest average high temperature) is July (26.8°C).
The month with the lowest average high temperature is January (-1.6°C).

  • Average low temperature in September: 12.8°C

The month with the highest average low temperature is July (17°C).
The coldest month (with the lowest average low temperature) is January (-8.2°C).

  • Average rainfall in September: 92.2mm

The wettest month (with the highest rainfall) is September (92.2mm).
The driest month (with the lowest rainfall) is January (22.3mm).

  • Average rainfall days in September: 10 days

Months with the highest number of rainy days are April, May and October (11 days).
Months with the lowest number of rainy days are January and February (4 days).

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (462mm).
Months with the lowest snowfall are May, June, July, August and September (0mm).

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (9 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9h).

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