Old Rock Tank Rainfall Forecast

Today 4 May
No Rain
Tue 5 May
No Rain
Wed 6 May
5%
Thu 7 May
35%
Fri 8 May
30%
Sat 9 May
15%
Sun 10 May
10%

Old Rock Tank Rainfall Statistics

May Rainfall

Pleasanton Municipal Airport (28.6 miles)

Total Rainfall 2026
9.6in
Daily Average 2026
0.1in
Wettest Day 19 April, 2026
5.1in
Wet Days 2026
13/124 (10%)
Total Rainfall April
7.5in
Daily Average April
0.4in
Wettest Day 19 April, 2026
5.1in
Wet Days April
5/30 (17%)
Total Rainfall May
–
Daily Average May
–
Wettest Day 5 May, 2026
–
Wet Days May
–

Climate (2010–Present)

Pleasanton Municipal Airport (28.6 miles)

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Annual Average 2021–2025
24.7in
Monthly Average 2021–2026
2.1in
Daily Average 2021–2026
0.1in
Wettest Day 12 June, 2025
5.2in

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