Southwest Ada County Alliance Rainfall Forecast

Today 18 Oct
No Rain
Sun 19 Oct
85%
Mon 20 Oct
5%
Tue 21 Oct
No Rain
Wed 22 Oct
No Rain
Thu 23 Oct
No Rain
Fri 24 Oct
10%

Southwest Ada County Alliance Rainfall Statistics

October Rainfall

Boise Air Terminal (3.1 miles)

Total Rainfall 2025
9.1in
Daily Average 2025
0.03in
Wettest Day 2 February, 2025
0.9in
Wet Days 2025
60/291 (21%)
Total Rainfall September
0.7in
Daily Average September
0.03in
Wettest Day 29 September, 2025
0.6in
Wet Days September
3/30 (10%)
Total Rainfall October
1.1in
Daily Average October
0.1in
Wettest Day 3 October, 2025
0.5in
Wet Days October
5/18 (28%)

Climate (2010–Present)

Boise Air Terminal (3.1 miles)

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Annual Average 2020–2024
13.4in
Monthly Average 2020–2025
1.1in
Daily Average 2020–2025
0.04in
Wettest Day 26 August, 2023
1.5in

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