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

June 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
The first month of the summer, June, is still a warm month in Ontario, California, with average temperature varying between 85.5°F (29.7°C) and 59°F (15°C).

Temperature

In Ontario, the average high-temperature in June marginally rises, from 79°F (26.1°C) in May, to a still moderately hot 85.5°F (29.7°C). The average low-temperature, in June, is 59°F (15°C).

Rainfall

In Ontario, 0.1" (3mm) of precipitation is typically accumulated. Throughout the year, 15" (382mm) of rain is accumulated.

Daylight

The month with the longest days is June, with an average of 14.4h of daylight.

What is the temperature in June in Ontario?

In June, in Ontario, the average high-temperature is 85.5°F (29.7°C), and the average low-temperature is 59°F (15°C).

How much does it rain in Ontario in June?

Throughout June, in Ontario, California, 0.1" (3mm) of precipitation is accumulated.

When are the longest days in Ontario?

The month with the longest days in Ontario is June, with an average of 14.4h of daylight.

How many hours of daylight does Ontario have in June?

In Ontario, California, the average length of the day in June is 14.4h.
Average temperature in June - Ontario, CA
  • Average high temperature in June: 85.5°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 June: 59°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 June - Ontario, CA
  • Average rainfall in June: 0.1"

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 June - Ontario, CA
  • Average daylight in June: 14.4h

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