Climate Chart of Niagara Falls, Canada

Climate overview

Temperature

The coolest monthly mean temperatures are shared by January / February, at -3.3 °C; the warmest monthly mean occurs in July, at 22.4 °C. These are averages for whole months, not daytime maximum temperatures, so they provide a seasonal planning baseline rather than a forecast of afternoon conditions. Across the calendar-month means, the unweighted mean is 9.6 °C. It summarizes the monthly averages without weighting them by the number of days in each month, and it does not describe the range of temperatures visitors may encounter from day to day.

Rain

Mean daily rainfall is highest in June, at 3.49 mm/day, and lowest in January, at 1.21 mm/day. The lower monthly mean can help visitors prioritising lower average rainfall choose when to travel, but it does not guarantee dry days or indicate how frequently rain falls. The unweighted mean of the monthly daily-rainfall means is 2.41 mm/day. These are daily averages, not monthly rainfall totals, so they should not be read as the amount expected over an entire month.

Snow

Mean daily snowfall is highest in February, at 11.16 mm/day. This is a daily average, not a monthly total, and it does not establish how many days have snowfall or whether snow covers the ground. The unweighted mean of the monthly daily-snowfall averages is 3.00 mm/day. This broad summary cannot indicate snow depth, snow-cover duration, or conditions for skiing.

Sunshine

Average daily sunshine reaches its highest monthly mean in July, at 11.83 hours/day, and its lowest in December, at 3.68 hours/day. These figures can help with planning outdoor time around typical sunshine, but sunshine duration is not the same as day length. The unweighted mean across monthly sunshine averages is 7.95 hours/day per day. It provides an overall reference, while actual sunshine on an individual visit may differ from the monthly average.