March weather forecast
Ontario, OR

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Weather in March

The first month of the spring, March, is a fresh month in Ontario, Oregon, with temperature in the range of an average low of 36.9°F (2.7°C) and an average high of 53.2°F (11.8°C).

Temperature

The arrival of March brings an increase in high-temperatures, moving from a cold 42.4°F (5.8°C) in February to a fresh 53.2°F (11.8°C). Throughout March, the temperature falls to an average low of 36.9°F (2.7°C).

Humidity

In March, the average relative humidity is 63%.

Rainfall

In Ontario, during March, the rain falls for 13.3 days and regularly aggregates up to 1.38" (35mm) of precipitation. Throughout the year, there are 84.9 rainfall days, and 9.29" (236mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Ontario are January through April, November and December. In Ontario, during March, snow falls for 1.3 days and regularly aggregates up to 0.31" (8mm) of snow. Throughout the year, there are 21.8 snowfall days, and 12.56" (319mm) of snow is accumulated.

Daylight

The average length of the day in March is 11h and 58min.
On the first day of March, sunrise is at 7:23 am and sunset at 6:36 pm MST. On the last day of the month, sunrise is at 7:29 am and sunset at 8:14 pm MDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from MDT to MST.

Sunshine

In March, the average sunshine is 8.1h.

UV index

In Ontario, the average daily maximum UV index in March is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index, 3 in March, converts into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.

Frequently asked questions

What are the temperatures in March?

In Ontario, in March, the average high-temperature is 53.2°F (11.8°C), and the average low-temperature is 36.9°F (2.7°C).

What is the average humidity in March?

In March, the average relative humidity is 63%.

How much does it rain in March?

In Ontario, in March, it is raining for 13.3 days, with typically 1.38" (35mm) of accumulated precipitation.

How many days does it snow in March?

In Ontario, in March, during 1.3 snowfall days, 0.31" (8mm) of snow is typically accumulated.

What is the average length of the day in March?

The average day length in March is 11h and 58min.

When is the sunrise / sunset in March?

On the first day of March, sunrise is at 7:23 am and sunset at 6:36 pm MST. On the last day of the month, sunrise is at 7:29 am and sunset at 8:14 pm MDT.

When does Daylight Saving Time (DST) start in March?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. DST ends Sunday, November 3. 2024, at 2:00 am.

How many hours of sunshine does Ontario have in March?

The average sunshine duration in March is 8.1h.

What is the UV index intensity in March?

The average daily maximum UV index in March is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Ontario, OR

Average temperature in March - Ontario, OR
  • Average high temperature in March: 53.2°F

The warmest month (with the highest average high temperature) is July (93.2°F).
The months with the lowest average high temperature are January and December (36.1°F).

  • Average low temperature in March: 36.9°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is December (23°F).

Average pressure in March
Ontario, OR

Average pressure in March - Ontario, OR
  • Average pressure in March: 30.04"Hg

The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).

Average wind speed in March
Ontario, OR

Average wind speed in March - Ontario, OR
  • Average wind speed in March: 6mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is January (3.9mph).

Average humidity in March
Ontario, OR

Average humidity in March - Ontario, OR
  • Average humidity in March: 63%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (29%).

Average rainfall in March
Ontario, OR

Average rainfall in March - Ontario, OR
  • Average rainfall in March: 1.38"

The wettest month (with the highest rainfall) is December (1.57").
The driest month (with the least rainfall) is July (0.08").

Average rainfall days in March
Ontario, OR

Average rainfall days in March - Ontario, OR
  • Average rainfall days in March: 13.3 days

The month with the highest number of rainy days is March (13.3 days).
The month with the least rainy days is August (1.8 days).

Average snowfall in March
Ontario, OR

Average snowfall in March - Ontario, OR
  • Average snowfall in March: 0.31"

The month with the highest snowfall is December (5.35").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in March
Ontario, OR

Average snowfall days in March - Ontario, OR
  • Average snowfall days in March: 1.3 days

The month with the highest number of snowfall days is December (7.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in March /
Average sunshine in March
Ontario, OR

Average daylight in March / Average sunshine in March - Ontario, OR
  • 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: 8h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in March
Ontario, OR

Average sunshine days in March - Ontario, OR
  • Average sunshine days in March: 15.9 days

The month with the most sunshine days is July (27.7 days).
The month with the least sunshine days is February (15.2 days).

Average UV index in March
Ontario, OR

Average UV index in March - Ontario, OR
  • Average UV index in March: 3

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in March
Ontario, OR

Average cloud cover in March - Ontario, OR
  • Average cloud cover in March: 38

The months with the most cloud cover are January and December (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 8).

Average visibility in March
Ontario, OR

Average visibility in March - Ontario, OR
  • Average visibility in March: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).

Ontario, Oregon, USA

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