Welland Average Temperature by Month

This page shows the average temperature in each month of the year in Welland, Ontario. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Welland?
In Welland, Ontario, the warmest month is July, with an average daily high temperature of 27.1 °C and an average low of 16.5 °C.
What's the Coldest Month in Welland?
In Welland, Ontario, the coolest month is February, with an average daily high temperature of 0.8 °C and an average low of -7.9 °C.
Month Avg. High Avg. Low
January 0.3 °C -7.4 °C
February 0.8 °C -7.9 °C
March 5.4 °C -4.0 °C
April 12.3 °C 1.7 °C
May 19.7 °C 7.8 °C
June 24.5 °C 13.5 °C
July 27.1 °C 16.5 °C
August 26.2 °C 15.6 °C
September 22.6 °C 11.8 °C
October 15.4 °C 5.7 °C
November 8.6 °C 0.5 °C
December 3.2 °C -4.3 °C
Year 14.0 °C 4.3 °C
Weather Station Details
Years Station Coordinates
2015–2024 Welland-Pelham location
1872–2014 Welland location