Lake Sacajawea Rainfall Forecast

Today 9 Apr
No Rain
Fri 10 Apr
40%
Sat 11 Apr
60%
Sun 12 Apr
55%
Mon 13 Apr
20%
Tue 14 Apr
15%
Wed 15 Apr
35%

Lake Sacajawea Rainfall Statistics

April Rainfall

Tri-Cities Airport (18.6 miles)

Total Rainfall 2026
2.6in
Daily Average 2026
0.03in
Wettest Day 1 April, 2026
0.4in
Wet Days 2026
25/99 (25%)
Total Rainfall March
0.5in
Daily Average March
0.02in
Wettest Day 13 March, 2026
0.1in
Wet Days March
7/31 (23%)
Total Rainfall April
0.4in
Daily Average April
0.1in
Wettest Day 1 April, 2026
0.4in
Wet Days April
1/9 (11%)

Climate (2010–Present)

Tri-Cities Airport (18.6 miles)

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Annual Average 2021–2025
7.1in
Monthly Average 2021–2026
0.6in
Daily Average 2021–2026
0.02in
Wettest Day 17 May, 2025
0.7in

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