Helmar Rainfall Forecast
- 40%
- 30%
- 10%
- 65%
- 5%
- 45%
- 30%
Helmar Rainfall Statistics
May Rainfall
Joliet Regional Airport (15.5 miles)
Total Rainfall May
0.4inDaily Average May
0.1inWettest Day 4 May, 2026
0.4inWet Days May
1/7 (14%)
Climate (2010–Present)
Joliet Regional Airport (15.5 miles)
Annual Average 2021–2025
37.4inMonthly Average 2021–2026
3.4inDaily Average 2021–2026
0.1inWettest Day 6 September, 2023
4.4in