Derby Rainfall Forecast
- 10%
- 10%
- 10%
- No Rain
- No Rain
- No Rain
- 5%
Derby Rainfall Statistics
September Rainfall
Cotulla, Cotulla-La Salle County Airport (21.7 miles)
Total Rainfall September
0.1inDaily Average September
0.01inWettest Day 18 September, 2026
0.1inWet Days September
2/21 (10%)
Climate (2021–2025)
Cotulla, Cotulla-La Salle County Airport (21.7 miles)
Annual Average 2021–2025
17.2inMonthly Average 2021–2026
1.4inDaily Average 2021–2026
0.05inWettest Day 15 August, 2022
4.1in