Estimated Return Periods for Short-Duration Precipitation in Arizona | |||||||
Station: Yuma WBO Elevation (feet): 914 | Latitude: 32°40' Longitude: 114°36' | ||||||
Duration | Return Period (Years) | ||||||
1 | 2 | 5 | 10 | 25 | 50 | 100 | |
5 min. | 0.10 | 0.18 | 0.31 | 0.39 | 0.48 | 0.57 | 0.65 |
10 min. | 0.16 | 0.28 | 0.49 | 0.61 | 0.75 | 0.88 | 1.01 |
15 min. | 0.21 | 0.35 | 0.62 | 0.77 | 0.95 | 1.12 | 1.28 |
30 min. | 0.28 | 0.49 | 0.85 | 1.07 | 1.32 | 1.55 | 1.78 |
1 hr. | 0.36 | 0.62 | 1.08 | 1.35 | 1.67 | 1.96 | 2.25 |
2 hr. | 0.38 | 0.66 | 1.15 | 1.45 | 1.81 | 2.12 | 2.43 |
3 hr. | 0.40 | 0.70 | 1.22 | 1.54 | 1.94 | 2.28 | 2.61 |
6 hr. | 0.44 | 0.80 | 1.40 | 1.78 | 2.26 | 2.66 | 3.05 |
12 hr. | 0.48 | 0.89 | 1.56 | 1.99 | 2.55 | 3.00 | 3.44 |
24 hr. | 0.52 | 0.98 | 1.72 | 2.21 | 2.85 | 3.36 | 3.85 |
Note: All values shown are in inches of rainfall. | |||||||
('80 Code, § 31-143) (Ord. 1670, passed 10-12-77)