Ottawa
Canada
Long-term weather forecast
Long-term weather forecast

March weather forecast and climate
Ottawa, Canada

A view of The Parliament Hill from the Ottawa River in Ottawa, Canada
A view of The Parliament Hill from the Ottawa River in Ottawa, Canada
March, the first month of the spring, in Ottawa, is a cold month, with average temperature ranging between min -7°C (19.4°F) and max 2.5°C (36.5°F).

Temperature

In Ottawa, the average high-temperature increases, from a subzero cold -3.4°C (25.9°F) in February, to a cold 2.5°C (36.5°F). In March, in Ottawa, Canada, the average low-temperature is -7°C (19.4°F).

Humidity

In Ottawa, the average relative humidity in March is 56.6%.

Rainfall

In Ottawa, in March, it is raining for 6.7 days, with typically 31.1mm (1.2") of accumulated precipitation. Throughout the year, there are 118.4 rainfall days, and 758.4mm (29.9") of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December.

Daylight

The average length of the day in Ottawa is 12h.

Sunshine

The average sunshine in Ottawa is 5.4h.

UV index

In March, the average daily maximum UV index in Ottawa is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to the Sun's UV rays for the ordinary person.
In March, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in March in Ottawa?

In March, in Ottawa, Canada, the average high-temperature is 2.5°C (36.5°F), and the average low-temperature is -7°C (19.4°F).

What is the average humidity in March in Ottawa?

The average relative humidity in March is 56.6%.

How many days does it rain in March in Ottawa?

In Ottawa, in March, it is raining for 6.7 days, with typically 31.1mm (1.2") of accumulated precipitation.

How much does it snow in Ottawa in March?

In Ottawa, Canada, during March, snow falls for 8.8 days and regularly aggregates up to 383mm (15.1") of snow.

How many hours of daylight does Ottawa have in March?

In March, the average length of the day in Ottawa is 12h.

How many hours of sunshine does Ottawa have in March?

The average sunshine in March is 5.4h.

What is the UV index reading in March in Ottawa?

The average daily maximum UV index in March in Ottawa, Canada, is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV rays.
Average temperature in March - Ottawa, Canada
  • Average high temperature in March: 2.5°C

The warmest month (with the highest average high temperature) is July (26.5°C).
The month with the lowest average high temperature is January (-5.8°C).

  • Average low temperature in March: -7°C

The month with the highest average low temperature is July (15.5°C).
The coldest month (with the lowest average low temperature) is January (-14.8°C).

Average humidity in March - Ottawa, Canada
  • Average humidity in March: 56.6%

The month with the highest relative humidity is December (72.2%).
The month with the lowest relative humidity is May (49.9%).

Average rainfall in March - Ottawa, Canada
  • Average rainfall in March: 31.1mm

The wettest month (with the highest rainfall) is June (92.8mm).
The driest month (with the lowest rainfall) is February (18.7mm).

Average rainfall days in March - Ottawa, Canada
  • Average rainfall days in March: 6.7 days

The month with the highest number of rainy days is October (13.7 days).
The month with the lowest number of rainy days is February (3.9 days).

Average snowfall in March - Ottawa, Canada
  • Average snowfall in March: 383mm

The month with the highest snowfall is January (539mm).
Months with the lowest snowfall are June, July, August and September (0mm).

Average snowfall days in March - Ottawa, Canada
  • Average snowfall days in March: 8.8 days

The month with the highest number of snowfall days is January (16.1 days).
Months with the lowest number of 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

The month with the longest days is June (Average daylight: 15.6h).
The month with shortest days is December (Average daylight: 8.8h).

  • Average sunshine in March: 5.4h

The month with most sunshine is July (Average sunshine: 9.7h).
The month with least sunshine is December (Average sunshine: 2.2h).

Average UV index in March - Ottawa, Canada
  • Average UV index in March: 3

The month with the highest UV index is June (UV index 8).
Months with the lowest UV index are January, November and December (UV index 1).