Saint Johns River - Great Marsh Island Rainfall Forecast
- 5%
- 5%
- 25%
- 25%
- 60%
- 65%
- 60%
Saint Johns River - Great Marsh Island Rainfall Statistics
September Rainfall
Mayport Naval Station - Adm David L. McDonald Field (2.5 miles)
Total Rainfall September
0.2inDaily Average September
0.1inWettest Day 2 September, 2025
0.2inWet Days September
1/4 (25%)
Climate (2010–Present)
Mayport Naval Station - Adm David L. McDonald Field (2.5 miles)
Annual Average 2020–2024
47.1inMonthly Average 2020–2025
4inDaily Average 2020–2025
0.1inWettest Day 9 September, 2024
4.9in