Copco Lake Rainfall Forecast

Today 3 May
65%
Mon 4 May
30%
Tue 5 May
5%
Wed 6 May
No Rain
Thu 7 May
No Rain
Fri 8 May
5%
Sat 9 May
No Rain

Copco Lake Rainfall Statistics

May Rainfall

Montague Siskiyou County Airport (16.2 miles)

Total Rainfall 2026
3.1in
Daily Average 2026
0.03in
Wettest Day 8 February, 2026
0.8in
Wet Days 2026
25/123 (20%)
Total Rainfall April
0.6in
Daily Average April
0.03in
Wettest Day 11 April, 2026
0.2in
Wet Days April
7/30 (23%)
Total Rainfall May
–
Daily Average May
–
Wettest Day 3 May, 2026
–
Wet Days May
–

Climate (2010–Present)

Montague Siskiyou County Airport (16.2 miles)

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Annual Average 2021–2025
7.7in
Monthly Average 2021–2026
0.6in
Daily Average 2021–2026
0.02in
Wettest Day 21 December, 2025
1.3in

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