Grampian Lake Rainfall Forecast

Today 1 Jul
20%
Thu 2 Jul
10%
Fri 3 Jul
45%
Sat 4 Jul
70%
Sun 5 Jul
55%
Mon 6 Jul
30%
Tue 7 Jul
15%

Grampian Lake Rainfall Statistics

July Rainfall

Pontiac, Oakland County International Airport (13.7 miles)

Total Rainfall 2026
9.1in
Daily Average 2026
0.1in
Wettest Day 4 April, 2026
1.6in
Wet Days 2026
37/182 (20%)
Total Rainfall June
2.5in
Daily Average June
0.1in
Wettest Day 22 June, 2026
0.6in
Wet Days June
7/30 (23%)
Total Rainfall July
–
Daily Average July
–
Wettest Day 1 July, 2026
–
Wet Days July
–

Climate (2021–2025)

Pontiac, Oakland County International Airport (13.7 miles)

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Annual Average 2021–2025
28.3in
Monthly Average 2021–2026
2.3in
Daily Average 2021–2026
0.1in
Wettest Day 24 August, 2023
3.5in

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