Ontario
California, USA
Long-term weather forecast
Long-term weather forecast

March weather forecast and climate
Ontario, CA

A clear street near the luxurious residential estate in Ontario, California, with a scenic background of a hilly landscape, the clear blue sky
A clear street near the luxurious residential estate in Ontario, California, with a scenic background of a hilly landscape, the clear blue sky
March, the first month of the spring, in Ontario, is a pleasant month, with average temperature fluctuating between 70°F (21.1°C) and 47.1°F (8.4°C).

Temperature

In March, the average high-temperature is practically the same as in February - an agreeable 70°F (21.1°C). In Ontario, in March, the average low-temperature is 47.1°F (8.4°C).

Rainfall

Throughout March, 2.3" (58.9mm) of precipitation is accumulated. Throughout the year, 15" (382mm) of rain is accumulated.

Daylight

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

What is the temperature in March in Ontario?

In March, in Ontario, California, the average high-temperature is 70°F (21.1°C), and the average low-temperature is 47.1°F (8.4°C).

How much does it rain in Ontario in March?

Throughout March, in Ontario, 2.3" (58.9mm) of precipitation is accumulated.

What is the average length of the day in March in Ontario?

In March, the average length of the day in Ontario, California, is 12h.
Average temperature in March - Ontario, CA
  • Average high temperature in March: 69.9°F

The warmest month (with the highest average high temperature) is August (93.6°F).
The month with the lowest average high temperature is January (65.2°F).

  • Average low temperature in March: 47.2°F

The month with the highest average low temperature is August (64.7°F).
The coldest month (with the lowest average low temperature) is December (42.7°F).

Average rainfall in March - Ontario, CA
  • Average rainfall in March: 2.3"

The wettest month (with the highest rainfall) is February (3.4").
Driest months (with the lowest rainfall) are June, July and August (0.1").

Average daylight in March - Ontario, CA
  • Average daylight in March: 12h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).