Big Twin Lake Rainfall Forecast

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

Big Twin Lake Rainfall Statistics

May Rainfall

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (11.2 miles)

Total Rainfall 2026
7.6in
Daily Average 2026
0.1in
Wettest Day 16 February, 2026
1.8in
Wet Days 2026
13/124 (10%)
Total Rainfall April
0.9in
Daily Average April
0.05in
Wettest Day 11 April, 2026
0.7in
Wet Days April
3/30 (10%)
Total Rainfall May
–
Daily Average May
–
Wettest Day 4 May, 2026
–
Wet Days May
–

Climate (2010–Present)

San Luis Obispo, San Luis Obispo County-Mc Chesney Field (11.2 miles)

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Annual Average 2021–2025
16.7in
Monthly Average 2021–2026
1.4in
Daily Average 2021–2026
0.05in
Wettest Day 9 January, 2023
4in

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