Niagara Falls (ON) Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Niagara Falls, Ontario, Canada. These averages rely on historical data collected over 30 years, from 1990 to 2020. Let's now guide you through the details for a complete overview.
Generally, Niagara Falls receives mid-range precipitation levels, with 929 mm (37 in) annually.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
While rainfall varies throughout the year, each season offers its own charm. October brings wetter days averaging 103 mm (4.1 in) of precipitation, spread over 15 rainy days.
In contrast, March experiences a drier climate, with about 59 mm (2.3 in) of snow/rainfall spread across 11 snowy/rainy days.
October, the wettest month, has a maximum daytime temperature of 15°C (59°F). The city receives 158 hours of sunshine in this period. During the driest month March you can expect a temperature of 6°C (43°F). For more detailed insights into the city's temperatures, visit our Niagara Falls Temperature page.
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in June
Explore Niagara Falls's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Niagara Falls spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Canada: City Comparison
The map below shows the annual precipitation across Canada. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Niagara Falls vs World: Rainfall Compared
Niagara Falls's average annual precipitation is 929 mm (37 in). Let's compare this to some popular worldwide tourist destinations:
The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm (18 in) of rainfall mostly during the winter months.
Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.
In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.
Ho Chi Minh City, Vietnam, receives 1955 mm (77 in) of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.
Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.
Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.
The proximity of a location to a large body of water can significantly affect its rainfall patterns:
- Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
- Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.
- The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
- Approximately 70% of lightning bolts strike land rather than oceans.
- A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.
For more detailed information about Niagara Falls (ON)'s weather, including sunshine hours, humidity levels, and temperature data, visit our Niagara Falls (ON) Climate page.
