The most important choice we can make to reduce air pollution is to use less energy, or âconserve energy.â. In BC, most of our electricity is generated by dams, instead of the combustion of fossil fuels. Hydroelectricity is a clean source of energy in terms of air quality, but it does have other environmental impacts.
Placentia, CA Weather. The average temperature of Placentia is 65.55Â°F, which is higher than the California average temperature of 61.17Â°F and is much higher than the national average temperature of 54.45Â°F. Historical Weather.
The National Weather Service has maintained a cooperative weather station in Pacifica since November 1, 1983. Based on those records, average January temperatures range from 45.8 Â°F (7.7 Â°C) to 56.7 Â°F (13.7 Â°C) and average September temperatures range from 53.9 Â°F (12.2 Â°C) to 71.8 Â°F (22.1 Â°C).