The warm season lasts for 3.7 months, from May 28 to September 18, with an average daily high temperature above 21 °C. The hottest month of the year in Niagara Falls is July, with an average high of 27 °C and low of 18 °C.
The cold season lasts for 3.3 months, from December 4 to March 14, with an average daily high temperature below 5 °C. The coldest month of the year in Niagara Falls is January, with an average low of -7 °C and high of -0 °C.
