Weather summary
for Ontario and the National Capital Region
issued by Environment Canada
at 3:17 p.m. EDT Wednesday 4 October 2023.

Discussion.

A warm airmass in place over Ontario continues to break daily 
maximum temperature records across the province. 

The following is a summary of weather event information received by 
Environment Canada. 

Summary of new daily maximum temperature records in Celsius for 
October 3: 

Toronto Pearson Airport: 30.4 , Previous record of 27.1 set in 2001. 

Toronto Downtown: 28.3 , Previous record of 27.2 set in 1891. 

Toronto Island Airport: 27.1 , Previous record of 23.9 set in 1919. 

Hamilton Airport: 28.0 , Previous record of 26.6 set in 2005. 

Ottawa Airport: 30.9 , Previous record of 26.2 set in 2005. 

Sarnia Airport: 28.5 , Previous record of 28.3 set in 1971. 

Petawawa: 30.6 , Previous record of 27.5 set in 2005. 

Muskoka Airport: 27.6 , Previous record of 25.6 set in 1951. 

Thunder Bay Airport: 28.6 , Previous record of 25.6 set in 1956 

Kenora Airport: 28.1 , Previous record of 24.2 set in 2011. 

Ear Falls: 28.4 , Previous record of 24.0 set in 2011. 

Dryden: 28.5 , Previous record of 25.7 set in 2011. 

Sioux Lookout Airport 29.6 , Previous record of 25.2 set in 2011. 

Geraldton Airport: 28.1 , Previous record of 23.9 set in 2005. 

Armstrong: 26.0 , Previous record of 21.3 set in 2005. 

Wawa Airport 24.6 , Previous record of 22.9 set in 2017. 

Kapuskasing Airport 29.8 , Previous record of 25.0 set in 1946. 

Timmins Airport 29.3 , Previous record of 24.1 set in 2017. 

Sudbury Airport: 28.0 , Previous record of 23.1 set in 2017. 

North Bay Airport: 26.7 , Previous record of 24.4 set in 1953. 

Chapleau Airport 27.3 , Previous record of 25.4 set in 2017. 

Sault Ste. Marie Airport 28.0 , Previous record of 24.3 set in 2017. 

Earlton 29.3 , Previous record of 26.7 set in 1953. 

Pickle Lake 27.3 , Previous record of 22.8 set in 1962. 

The following are summary of new monthly temperature records in 
Celsius for October: 

Ottawa Airport: 30.9 , Previous record of 27.8 set in 1946. 

Petawawa: 30.6 , Previous record of 29.6 set in 2005. 

Kenora Airport: 28.1 , Previous record of 26.7 set in 1943. 

Dryden: 28.5 , Previous record of 28.4 set in 2023. 

Ear Falls: 28.4 , Previous record of 26.1 set in 1961. 

Kapuskasing Airport 29.8 , Previous record of 28.6 set in 2023. 

Sudbury Airport: 28.0 , Previous record of 26.3 set in 2011. 

Sault Ste. Marie Airport 28.0 , Previous record of 27.3 set in 2023 

Sioux Lookout Airport 29.6 , Previous record of 28.3 set in 2023 

Earlton 29.3 , Previous record of 28.5 set in 2011.

Please note that this summary may contain preliminary or unofficial 
information and does not constitute a complete or final report.

End/OSPC