Climate almanac
Acton
Ontario, CA · 43.63°, -80.04°
What is the climate like in Acton?
Acton is warmest in July, when daily highs average 80°F (27°C), and coolest in January, when lows fall to about 17°F (-8°C). The wettest month is typically April and the driest is September; the year sees roughly 37 in of precipitation.
- Warmest monthJuly — average high 80°F (27°C)
- Coolest monthJanuary — average low 17°F (-8°C)
- Wettest monthApril (3.8 in)
- Driest monthSeptember (2.3 in)
- Annual precipitation37 in