Climate
Climate
El Dorado Hills has a Mediterranean climate, with hot, dry summers and cool, wet winters. The hottest month is July, with average high temperatures around 97°F (36°C), and the coldest is January, with average highs near 56°F (13°C) and lows around 38°F (3°C).
December and January are the months with the lowest average minimum temperatures, typically in the upper 30s°F (3–4°C).
The average annual rainfall is about 23 inches (585 mm), though this can vary significantly year to year due to ongoing drought conditions and climate variability. The wettest months are typically January and February, each averaging about 4–5 inches (100–125 mm) of rain.
Frost is common in winter, but snowfalls remain rare, although occasional light dustings have been reported in recent years. Drought and wildfire risk have increased in the 2020s, especially during late summer and fall.
Prevailing winds are generally from the south and southwest, but strong, dry northerly winds (including "Diablo winds") can occur in autumn, increasing wildfire danger.
The nearest official weather stations are at Folsom Dam (northwest of El Dorado Hills) and at Placerville. Local microclimates can cause some variation in temperature and precipitation across the area.