St. Catharines
March
Weather in St. Catharines for March 2025
Your guide to St. Catharines weather in March - trends and predictions
In general, the average temperature in St. Catharines at the beginning of March is 5.9 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 6.9 °C by the end of March.
St. Catharines sees moderate rainfall in March, averaging 9 rainy days.
With an average of 2 snowy days, St. Catharines enjoys a light touch of snow in March.
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20
Dry days
9
Rainy days
2
Snow days
8°/-2°
Temperatures
32 km/h
Avg max wind
76 %
Avg humidity
St. Catharines in March average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  5° | 2  4° | |||||
| 3  5° | 4  8° | 5  9° | 6  6° | 7 4° | 8 5° | 9 5° |
| 10 2° | 11  3° | 12 5° | 13  8° | 14 5° | 15  5° | 16 7° |
| 17  7° | 18 2° | 19 2° | 20 4° | 21 3° | 22 6° | 23  5° |
| 24 2° | 25  10° | 26 8° | 27 6° | 28 5° | 29 6° | 30 5° |
| 31  8° |
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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 | 5° /0° | 0 mm | 0 cm | |
| 2 Mar. | Cloudy | 4° /1° | 0.1 mm | 0 cm | |
| 3 Mar. | Blizzard | 5° /1° | 5.7 mm | 0 cm | |
| 4 Mar. | Heavy snow | 8° /2° | 1.6 mm | 0.6 cm | |
| 5 Mar. | Light snow | 9° /3° | 2.9 mm | 0.1 cm | |
| 6 Mar. | Moderate snow | 6° /1° | 5.1 mm | 0.2 cm | |
| 7 Mar. | Blizzard | 4° /0° | 2 mm | 1.4 cm | |
| 8 Mar. | Overcast | 5° /-1° | 0.2 mm | 0 cm | |
| 9 Mar. | Overcast | 5° /2° | 5.8 mm | 0 cm | |
| 10 Mar. | Blizzard | 2° /-1° | 10.7 mm | 0 cm | |
| 11 Mar. | Light snow showers | 3° /-1° | 2.3 mm | 0.1 cm | |
| 12 Mar. | Moderate snow | 5° /-1° | 0.4 mm | 0.4 cm | |
| 13 Mar. | Moderate or heavy snow showers | 8° /3° | 2.5 mm | 1.7 cm | |
| 14 Mar. | Heavy snow | 5° /2° | 11.9 mm | 0.3 cm | |
| 15 Mar. | Partly cloudy | 5° /0° | 1.5 mm | 0 cm | |
| 16 Mar. | Overcast | 7° /0° | 1.9 mm | 0 cm | |
| 17 Mar. | Light rain | 7° /1° | 8.1 mm | 0 cm | |
| 18 Mar. | Light snow | 2° /-1° | 0.3 mm | 0 cm | |
| 19 Mar. | Blizzard | 2° /-4° | 0.7 mm | 0.1 cm | |
| 20 Mar. | Overcast | 4° /-1° | 0.8 mm | 0.2 cm | |
| 21 Mar. | Overcast | 3° /-2° | 0.1 mm | 0 cm | |
| 22 Mar. | Light drizzle | 6° /-2° | 1.6 mm | 0.1 cm | |
| 23 Mar. | Moderate or heavy rain with thunder | 5° /0° | 20.2 mm | 0.5 cm | |
| 24 Mar. | Overcast | 2° /-2° | 0 mm | 0 cm | |
| 25 Mar. | Light sleet | 10° /-1° | 19.5 mm | 0 cm | |
| 26 Mar. | Cloudy | 8° /1° | 5 mm | 0 cm | |
| 27 Mar. | Light snow | 6° /2° | 6.1 mm | 2.2 cm | |
| 28 Mar. | Overcast | 5° /0° | 1.3 mm | 1.1 cm | |
| 29 Mar. | Blizzard | 6° /0° | 1.3 mm | 0 cm | |
| 30 Mar. | Light snow showers | 5° /-2° | 0.3 mm | 0 cm | |
| 31 Mar. | Moderate rain | 8° /0° | 5.1 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?
Prepare for cooler days with highs just around 8° and colder nights, dipping below -2°.
How much rainfall should be expected in St. Catharines during March?
Significant rainfall exceeding 250.4 mm is expected in St. Catharines during March, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
Is snowfall common in St. Catharines during March?
St. Catharines experiences an average snowfall of 18.1 cm during March, occurring over 2 days, which may interest winter sports enthusiasts.
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.
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