The highest day temperature in June 2026 was 103°F. The lowest night temperature was 56°F. The average values for day and night temperatures during June were 91.1°F и 61.7°F respectivly.

Almost all days in June are sunny. There is very low probability of clouds or gloomy days.

Precipitation total in June for Fontana is 0.0 in. It makes june one of the least rainy months of the year.

The average wind speed in June is 4.9 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Fontana in June is 13.1 hours.