Princeton Rainfall Forecast

Today 10 Aug
80%
Tue 11 Aug
65%
Wed 12 Aug
55%
Thu 13 Aug
70%
Fri 14 Aug
60%
Sat 15 Aug
55%
Sun 16 Aug
30%

Princeton Rainfall Statistics

August Rainfall

Illinois Valley Regional Airport (16.2 miles)

Total Rainfall 2026
27.8in
Daily Average 2026
0.1in
Wettest Day 1 August, 2026
2.4in
Wet Days 2026
52/222 (23%)
Total Rainfall July
4.7in
Daily Average July
0.2in
Wettest Day 4 July, 2026
2.1in
Wet Days July
6/31 (19%)
Total Rainfall August
2.5in
Daily Average August
0.3in
Wettest Day 1 August, 2026
2.4in
Wet Days August
4/10 (40%)

Climate (2021–2025)

Illinois Valley Regional Airport (16.2 miles)

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Annual Average 2021–2025
34.5in
Monthly Average 2021–2026
3.1in
Daily Average 2021–2026
0.1in
Wettest Day 14 December, 2022
3.4in

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