District 4 storm summary Final
Christmas 2025 storm
Dec 18–27, 2025
Dec 18–27, 2025 storm: 18,422 km² of District 4 crossed 0.5 in in 24 h; 103 Caltrans projects and 962 CGP sites had an MQPE.
Dec 18, 2025 9:00 PM PST – Dec 27, 2025 1:00 PM PST · 8 d 16 h
Area that crossed 0.5 in / 24 h
18,422 km²
100% of District 4
District average
5.12 in
storm total, all cells
Wettest cell
16.46 in
9 mi N of Cazadero
Peak 24-hour block
5.19 in
8 mi SW of Geyserville
Peak hourly intensity
0.73 in/h
near North Richmond
