March weather forecastOttawa, Canada
March
Weather in March
March in Ottawa signals the advent of spring with slight optimism in the air. From the frigid grip of February, temperatures get a significant boost to near freezing, rising on both high and low ends. A visible increase is placed on daylight hours and sunshine, significantly reducing the power of cold winter winds. The weather conditions are marking a slow transition from winter, experienced as a gradual lift from the season's chill.Temperature
As Ottawa transitions into March, a rise in the average high-temperature is observed, moving from a subzero cold -4.9°C (23.2°F) in February to a wintry 0.8°C (33.4°F). The average low-temperature during March nights is a subzero cold -6.8°C (19.8°F).Humidity
The average relative humidity in March is 87%.Rainfall
In Ottawa, in March, during 10.1 rainfall days, 59mm (2.32") of precipitation is typically accumulated. Throughout the year, there are 149.6 rainfall days, and 772mm (30.39") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Ottawa, in March, snow falls for 13.9 days, with typically accumulated 170mm (6.69") of snow. In Ottawa, during the entire year, snow falls for 83.3 days and aggregates up to 1135mm (44.69") of snow.Daylight
In Ottawa, the average length of the day in March is 11h and 57min.On the first day of the month, sunrise is at 6:39 am and sunset at 5:50 pm EST. On the last day of March, sunrise is at 6:43 am and sunset at 7:30 pm EDT.
Note: On Sunday, 10. March 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, 03. November 2024, at 2:00 am; consequently, the time zone reverts from EDT to EST.
Sunshine
The average sunshine in March is 4.6h.UV index
In March, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A typical high UV index of 2 in March suggests the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Ottawa, Canada
- Average high temperature in March: 0.8°C
The warmest month (with the highest average high temperature) is July (25.3°C).
The month with the lowest average high temperature is January (-6.3°C).
- Average low temperature in March: -6.8°C
The month with the highest average low temperature is July (14.5°C).
The coldest month (with the lowest average low temperature) is January (-14.5°C).
Average pressure in March
Ottawa, Canada
- Average pressure in March: 1018mbar
The month with the highest atmospheric pressure is March (1018mbar).
The month with the lowest atmospheric pressure is June (1012.5mbar).
Average wind speed in March
Ottawa, Canada
- Average wind speed in March: 13.4km/h
The windiest month (with the highest average wind speed) is April (14km/h).
The calmest month (with the lowest average wind speed) is July (9.8km/h).
Average humidity in March
Ottawa, Canada
- Average humidity in March: 87%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (77%).
Average rainfall in March
Ottawa, Canada
- Average rainfall in March: 59mm
The wettest month (with the highest rainfall) is October (78mm).
The driest month (with the least rainfall) is September (54mm).
Average rainfall days in March
Ottawa, Canada
- Average rainfall days in March: 10.1 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in March
Ottawa, Canada
- Average snowfall in March: 170mm
The month with the highest snowfall is January (321mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in March
Ottawa, Canada
- Average snowfall days in March: 13.9 days
The month with the highest number of snowfall days is January (19.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in March /
Average sunshine in March
Ottawa, Canada
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in March: 4h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).
Average sunshine days in March
Ottawa, Canada
- Average sunshine days in March: 11.3 days
The month with the most sunshine days is September (15 days).
The month with the least sunshine days is February (9.1 days).
Average UV index in March
Ottawa, Canada
- Average UV index in March: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in March
Ottawa, Canada
- Average cloud cover in March: 62
The months with the most cloud cover are January and February (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in March
Ottawa, Canada
- Average visibility in March: 8km
The months with the highest visibility are April, May, June, July, August and October (9km).
The months with the lowest visibility are January and February (7km).
