Saint Johns River - Great Marsh Island Rainfall Forecast
- 40%
- 15%
- 10%
- 45%
- 70%
- 75%
- 60%
Saint Johns River - Great Marsh Island Rainfall Statistics
July Rainfall
Mayport Naval Station - Adm David L. McDonald Field (2.5 miles)
Total Rainfall July
1.5inDaily Average July
0.1inWettest Day 14 July, 2025
0.6inWet Days July
8/18 (44%)
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