March weather forecastThornhill, Canada

March

Weather in March

March, the first month of the spring in Thornhill, is a wintry month, with an average temperature fluctuating between 2.9°C (37.2°F) and -2.9°C (26.8°F).

Temperature

The shift into March brings an increase in the average high-temperature, moving from a subzero cold -2.3°C (27.9°F) in February to a cold 2.9°C (37.2°F). In March, Thornhill experiences an average nighttime temperature of -2.9°C (26.8°F).

Humidity

The average relative humidity in March is 78%.

Rainfall

In Thornhill, during March, the rain falls for 9.6 days and regularly aggregates up to 28mm (1.1") of precipitation. In Thornhill, during the entire year, the rain falls for 136.9 days and collects up to 456mm (17.95") of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Thornhill, Canada, in March, snow falls for 8 days, with typically accumulated 46mm (1.81") of snow. Throughout the year, in Thornhill, there are 49.5 snowfall days, and 317mm (12.48") of snow is accumulated.

Daylight

The average length of the day in March in Thornhill is 11h and 58min.
On the first day of March in Thornhill, Canada, sunrise is at 6:53 am and sunset at 6:06 pm EST. On the last day of the month, sunrise is at 6:59 am and sunset at 7:44 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

In March, the average sunshine in Thornhill is 5.6h.

UV index

The average daily maximum UV index in March is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A daily maximum UV index of 2 in March translates into the following instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.

Frequently asked questions

In Thornhill, in March, the average high-temperature is 2.9°C (37.2°F), and the average low-temperature is -2.9°C (26.8°F).

In March, the average relative humidity in Thornhill is 78%.

In Thornhill, Canada, during March, the rain falls for 9.6 days and regularly aggregates up to 28mm (1.1") of precipitation.

In Thornhill, in March, snow falls for 8 days, with typically accumulated 46mm (1.81") of snow.

In March, the average day length in Thornhill, Canada, is 11h and 58min.

On the first day of March in Thornhill, Canada, sunrise is at 6:53 am and sunset at 6:06 pm EST. On the last day of the month, sunrise is at 6:59 am and sunset at 7:44 pm EDT.

On Sunday, 10. March 2024, at 2:00 am, Daylight Saving Time starts in Thornhill, and the time zone changes from EST to EDT. DST ends on Sunday, 03. November 2024, at 2:00 am.

In March, the average sunshine duration in Thornhill, Canada, is 5.6h.

In March, the average daily maximum UV index in Thornhill, Canada, is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Thornhill, Canada

  • Average high temperature in March: 2.9°C

The warmest month (with the highest average high temperature) is July (25.1°C).
The month with the lowest average high temperature is January (-2.7°C).

  • Average low temperature in March: -2.9°C

The month with the highest average low temperature is July (17.4°C).
The coldest month (with the lowest average low temperature) is January (-8°C).

Average pressure in March
Thornhill, Canada

  • Average pressure in March: 1018.3mbar

The month with the highest atmospheric pressure is March (1018.3mbar).
The month with the lowest atmospheric pressure is June (1013.1mbar).

Average wind speed in March
Thornhill, Canada

  • Average wind speed in March: 16.3km/h

The windiest month (with the highest average wind speed) is January (17.8km/h).
The calmest month (with the lowest average wind speed) is July (11km/h).

Average humidity in March
Thornhill, Canada

  • Average humidity in March: 78%

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, July and August (75%).

Average rainfall in March
Thornhill, Canada

  • Average rainfall in March: 28mm

The wettest month (with the highest rainfall) is July (60mm).
The driest month (with the least rainfall) is February (23mm).

Average rainfall days in March
Thornhill, Canada

  • Average rainfall days in March: 9.6 days

The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is February (4.6 days).

Average snowfall in March
Thornhill, Canada

  • Average snowfall in March: 46mm

The month with the highest snowfall is February (82mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in March
Thornhill, Canada

  • Average snowfall days in March: 8 days

The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in March /
Average sunshine in March
Thornhill, Canada

  • Average daylight in March: 12h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in March: 5h and 36min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in March
Thornhill, Canada

  • Average sunshine days in March: 15.2 days

The month with the most sunshine days is December (16.9 days).
The month with the least sunshine days is July (10.8 days).

Average UV index in March
Thornhill, Canada

  • Average UV index in March: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in March
Thornhill, Canada

  • Average cloud cover in March: 55

The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 27).

Average visibility in March
Thornhill, Canada

  • Average visibility in March: 9km

The months with the highest visibility are August, September and October (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, November and December (9km).