Welland Average Rainfall by Month

This page shows the average precipitation (including snowfall) in each month of the year in Welland, Ontario. It is based on NOAA data for the years 1991–2020.

Average temperature by month

What's the Rainiest Month in Welland?

In Welland, September has the greatest precipitation of any month. On average, Welland gets 9.4 cm of precipitation in September.

However, January is the month with the greatest chance of precipitation. 51.7% of days in January will have at least some rain or snow.

What's the Driest Month in Welland?

In Welland, February has the least precipitation of any month. On average, Welland gets 4.94 cm of precipitation in February.

August is the month with the lowest chance of precipitation. 36.9% of days in August will have measurable rain.

Month	Precipitation	% Chance
January	8.45 cm	51.7
February	4.94 cm	44.0
March	6.68 cm	41.8
April	7.74 cm	47.1
May	8.14 cm	46.1
June	7.76 cm	41.0
July	7.84 cm	39.5
August	8.44 cm	36.9
September	9.40 cm	39.6
October	8.90 cm	45.6
November	8.36 cm	48.2
December	7.15 cm	47.6
Year	91.17 cm	43.7

Weather Station Details

Years	Station	Coordinates
2015–2024	Welland-Pelham	location
1872–2014	Welland	location