Big Twin Lake Rainfall Forecast

Today 15 Sep
No Rain
Tue 16 Sep
5%
Wed 17 Sep
30%
Thu 18 Sep
55%
Fri 19 Sep
30%
Sat 20 Sep
10%
Sun 21 Sep
10%

Big Twin Lake Rainfall Statistics

September Rainfall

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

Total Rainfall 2025
8.7in
Daily Average 2025
0.03in
Wettest Day 13 February, 2025
2.6in
Wet Days 2025
21/258 (8%)
Total Rainfall August
0in
Daily Average August
0in
Wettest Day 1 August, 2025
0in
Wet Days August
–
Total Rainfall September
0.01in
Daily Average September
0in
Wettest Day 10 September, 2025
0.01in
Wet Days September
1/15 (7%)

Climate (2010–Present)

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

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Annual Average 2020–2024
14.9in
Monthly Average 2020–2025
1.3in
Daily Average 2020–2025
0.04in
Wettest Day 9 January, 2023
4in

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