§ 192-09  Estimated Return Periods for Short-Duration Precipitation.
 
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)