Steamboat Slough Rainfall Forecast

Today 1 Jun
No Rain
Tue 2 Jun
No Rain
Wed 3 Jun
No Rain
Thu 4 Jun
No Rain
Fri 5 Jun
No Rain
Sat 6 Jun
No Rain
Sun 7 Jun
No Rain

Steamboat Slough Rainfall Statistics

June Rainfall

Napa, Napa County Airport (7.5 miles)

Total Rainfall 2026
9.6in
Daily Average 2026
0.1in
Wettest Day 16 February, 2026
1.1in
Wet Days 2026
32/152 (21%)
Total Rainfall May
0.6in
Daily Average May
0.02in
Wettest Day 4 May, 2026
0.3in
Wet Days May
4/31 (13%)
Total Rainfall June
–
Daily Average June
–
Wettest Day 1 June, 2026
–
Wet Days June
–

Climate (2010–Present)

Napa, Napa County Airport (7.5 miles)

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Annual Average 2021–2025
19.9in
Monthly Average 2021–2026
1.7in
Daily Average 2021–2026
0.1in
Wettest Day 24 October, 2021
4.8in

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