Historical weather data, all-time temperature records, and monthly climate averages for Piedmont, CA. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Piedmont runs mild and mostly dry — expect a high around 64° and a low near 49°, with just a 1-in-4 chance of rain. The date has seen some swings though: a scorching 85° back in 1989, and a chilly 40° low in 1975.
Piedmont's weather can punch well outside its comfort zone when it wants to. The all-time high hit 109° on September 14, 1971, while the coldest ever recorded was a rare 26° on December 9, 1972 — and New Year's Eve 2022 dropped 4.75 inches of rain in a single day.
Piedmont stays pleasantly mild year-round, but late summer is the sweet spot — highs peak around 75° the first week of September. Winters are cool and rainy, with the wettest stretch typically falling mid-February around 1.39 inches per week, and January highs hovering near 57°.