Tomales Bay State Park Rainfall Forecast

Today 1 May
No Rain
Fri 2 May
No Rain
Sat 3 May
5%
Sun 4 May
No Rain
Mon 5 May
No Rain
Tue 6 May
No Rain
Wed 7 May
No Rain

Tomales Bay State Park Rainfall Statistics

May Rainfall

Petaluma Municipal Airport (18 miles)

Total Rainfall 2025
8.3in
Daily Average 2025
0.1in
Wettest Day 4 February, 2025
1.6in
Wet Days 2025
25/121 (21%)
Total Rainfall April
0.2in
Daily Average April
0.01in
Wettest Day 1 April, 2025
0.2in
Wet Days April
2/30 (7%)
Total Rainfall May
–
Daily Average May
–
Wettest Day
–
Wet Days May
–

Climate (2011–Present)

Petaluma Municipal Airport (18 miles)

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Annual Average 2020–2024
10.1in
Monthly Average 2020–2025
0.9in
Daily Average 2020–2025
0.03in
Wettest Day 24 October, 2021
4.8in

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