St. Catharines
March
Weather in St. Catharines for March 2026
Your guide to St. Catharines weather in March - trends and predictions
The climate of St. Catharines in March is quite snowy, averaging 11 snowy days.
In general, the average temperature in St. Catharines at the beginning of March is 5.1 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 7.3 °C by the end of March.
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Snow Forecast ❄️
Temperatures
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8
Dry days
12
Rainy days
11
Snow days
5°/0°
Temperatures
32 km/h
Avg max wind
75 %
Avg humidity
St. Catharines Weather March
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  4° | 2  2° | 3  3° | 4  7° | 5  10° | 6  6° | 7 4° |
| 8 3° | 9 5° | 10 4° | 11 6° | 12 5° | 13 6° | 14 7° |
| 15  8° | 16 10° | 17  6° | 18 6° | 19 8° | 20 6° | 21 5° |
| 22 6° | 23  5° | 24 3° | 25 8° | 26 6° | 27 6° | 28 6° |
| 29 8° | 30  7° | 31 10° |
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Temperatures trend during March in St. Catharines
See the weather trend as well as the moving average line
March weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Mar. | Overcast | 4° /-3° | 0 mm | 0 cm | |
| 2 Mar. | Cloudy | 2° /-3° | 0.1 mm | 0 cm | |
| 3 Mar. | Blizzard | 3° /-1° | 3.8 mm | 0 cm | |
| 4 Mar. | Heavy snow | 7° /1° | 4.9 mm | 1 cm | |
| 5 Mar. | Light snow | 10° /3° | 10.3 mm | 0.1 cm | |
| 6 Mar. | Moderate snow | 6° /0° | 4.7 mm | 0.5 cm | |
| 7 Mar. | Blizzard | 4° /-1° | 1.4 mm | 1 cm | |
| 8 Mar. | Overcast | 3° /-2° | 0.1 mm | 0 cm | |
| 9 Mar. | Overcast | 5° /0° | 3.9 mm | 0 cm | |
| 10 Mar. | Blizzard | 4° /-1° | 7.1 mm | 0 cm | |
| 11 Mar. | Overcast | 6° /-1° | 1.6 mm | 0.1 cm | |
| 12 Mar. | Moderate snow | 5° /-1° | 0.3 mm | 0.3 cm | |
| 13 Mar. | Overcast | 6° /2° | 1.7 mm | 1.1 cm | |
| 14 Mar. | Heavy snow | 7° /1° | 7.9 mm | 0.2 cm | |
| 15 Mar. | Partly cloudy | 8° /1° | 5.3 mm | 0 cm | |
| 16 Mar. | Overcast | 10° /1° | 12.9 mm | 0 cm | |
| 17 Mar. | Light rain | 6° /1° | 5.4 mm | 0 cm | |
| 18 Mar. | Light snow | 6° /-1° | 0.2 mm | 0 cm | |
| 19 Mar. | Blizzard | 8° /-2° | 0.5 mm | 0.1 cm | |
| 20 Mar. | Overcast | 6° /-1° | 3.3 mm | 0.2 cm | |
| 21 Mar. | Overcast | 5° /-2° | 0.1 mm | 0 cm | |
| 22 Mar. | Light drizzle | 6° /-2° | 1 mm | 0.1 cm | |
| 23 Mar. | Moderate or heavy rain with thunder | 5° /-1° | 14 mm | 0.7 cm | |
| 24 Mar. | Overcast | 3° /-2° | 4.2 mm | 0 cm | |
| 25 Mar. | Cloudy | 8° /-1° | 13 mm | 0 cm | |
| 26 Mar. | Cloudy | 6° /0° | 3.3 mm | 0 cm | |
| 27 Mar. | Light snow | 6° /0° | 4.1 mm | 1.5 cm | |
| 28 Mar. | Overcast | 6° /0° | 1.6 mm | 0.7 cm | |
| 29 Mar. | Blizzard | 8° /1° | 7.6 mm | 0 cm | |
| 30 Mar. | Light snow showers | 7° /-1° | 8.6 mm | 0 cm | |
| 31 Mar. | Overcast | 10° /0° | 3.4 mm | 0 cm | |
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Important Notice
Our weather forecast for St. Catharines in March is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the St. Catharines forecast closer to your planned date for the most up-to-date weather information.
St. Catharines in March - FAQ
What are the expected maximum and minimum temperatures in St. Catharines during March?
Brace for cold days with temperatures not exceeding 5° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in St. Catharines during March?
Significant rainfall exceeding 132.7 mm is expected in St. Catharines during March, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.
Will it snow in St. Catharines in March 2026?
St. Catharines experiences an average snowfall of 9.30167 cm during March, occurring over 11 days.
What are the typical wind conditions in St. Catharines during March?
The average wind speed in St. Catharines during March is 32 km/h, suggesting breezy to windy conditions, depending on your activities.
St. Catharines snow forecast March 2026
Track daily snowfall levels and discover St. Catharines’s snowy potential this March ❄️
March rainfall patterns in St. Catharines
Explore the daily rainfall trends and prepare for St. Cathariness March weather 💧
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Where is St. Catharines?Get accurate weather forecasts for St. Catharines, located at latitude 43.171 and longitude -79.243. Stay updated with localized weather information tailored for St. Catharines.
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