Helen Putnam Regional Park Rainfall Forecast
- 85%
- 15%
- No Rain
- No Rain
- 5%
- 15%
- 25%
Helen Putnam Regional Park Rainfall Statistics
December Rainfall
Petaluma Municipal Airport (3.7 miles)
Total Rainfall December
2inDaily Average December
0.1inWettest Day 21 December, 2025
0.7inWet Days December
7/26 (27%)
Climate (2011–Present)
Petaluma Municipal Airport (3.7 miles)
Annual Average 2020–2024
10.1inMonthly Average 2020–2025
0.9inDaily Average 2020–2025
0.03inWettest Day 24 October, 2021
4.8in