Norton Slough Rainfall Forecast

Today 24 Sep
No Rain
Fri 25 Sep
30%
Sat 26 Sep
No Rain
Sun 27 Sep
20%
Mon 28 Sep
No Rain
Tue 29 Sep
45%
Wed 30 Sep
60%

Norton Slough Rainfall Statistics

September Rainfall

Lone Rock Tri-County Regional Airport (7.5 miles)

Total Rainfall 2026
31.5in
Daily Average 2026
0.1in
Wettest Day 2 July, 2026
2.9in
Wet Days 2026
92/267 (34%)
Total Rainfall August
3.2in
Daily Average August
0.1in
Wettest Day 21 August, 2026
0.7in
Wet Days August
12/31 (39%)
Total Rainfall September
4.4in
Daily Average September
0.2in
Wettest Day 18 September, 2026
1.6in
Wet Days September
10/24 (42%)

Climate (2021–2025)

Lone Rock Tri-County Regional Airport (7.5 miles)

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Annual Average 2021–2025
29.2in
Monthly Average 2021–2026
2.6in
Daily Average 2021–2026
0.1in
Wettest Day 10 August, 2025
2.9in

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