Sacramento averages 86.6 days a year above 90°F, with January the wettest month at 3.87 in of normal rain. The hottest day on record was 116°F on Sep 6, 2022; the coldest, 18°F on Dec 22, 1990. The single biggest 24-hour rain event recorded was 5.44 in on Oct 24, 2021.
Climate and Average Weather Year Round in Sacramento
Year-round temperature
In Sacramento, the warmest months are June through September, with average daily highs between 89°F and 94°F. The coldest stretch runs December through February, with highs between 56°F and 62°F and overnight lows reaching 41°F.
Rainfall through the year
Rainfall in Sacramento averages 1.6 in per month over the long run. January is the wettest at 3.9 in, while July is the driest at 0.0 in.
Days at 90 °F or hotter
Sacramento averages 86.6 days per year at 90 °F or hotter. The hottest year on record saw 125 such days (2020); the coolest just 9 (2025).