Ontario climate guide, California

Welcome to the Ontario climate guide, which shows average weather for Ontario, California, United States. Check maximum temperature, the number of days with rainfall and daily hours of sunshine for each month of the year.

Ontario climate guide: quick links

Maximum temperature (°C) in Ontario

19
20
20
23
25
29
34
34
31
27
22
19
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Days with some rain in Ontario

5
5
6
4
2
1
2
2
3
2
4
5
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Hours of sunshine in Ontario

7
8
8
10
10
10
12
11
10
9
7
7
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Ontario, California map © Weather2Travel.com
Ontario, California map © Weather2Travel.com
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The Ontario climate guide is provided by Weather2Travel.com. For more information about the weather in Ontario, California, United States including monthly rainfall, mininum temperature, UV maximum, heat & humidity and daylight hours visit the California climate guide page.

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