WSP02633

• File Number: 8200.750
• Description: San Juan River General
• State: CO
• Basin: San Juan/Dolores
• Water Division: 7
• Date: 6/1/1987
• Author: Wheeler and Assoc
• Title: Documentation for San Juan River Hydrology Analysis - Historic and Virgin Flow Conditions - June 1987
• Water Supply Pro - Doc Type: Report/Study

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PIEDRA RIVER NEAR ARBOLES ;..-1>
USGS GAGE RECORDS
(VALUES IN 1000 ACRE-FEET)
YEAR JAN FEB nAR APR nAY JUN JUL AUG SEP OCT NOV DEC TOTAL
1951 2.20 2.60 4.80 11.10 39.40 25.10 3.20 1.00 4.10 2.90 2.10 3.10 110.00
1952 3.50 3.40 6.50 101.90 136.00 142.00 30.00 12.80 1.10 4.40 3.30 4.10 455.00
1953 3.50 3.10 11.00 21.00 34.50 31.10 8.00 5.50 1.80 3.80 5.40 3.10 145.00
1954 2.80 3.80 5.10 32.20 54.00 19.00 1.30 1.10 1.00 12.80 4.50 3.20 160.00
1955 2.60 2.40 1.50 16.90 52.00 41.00 6.30 13.10 4.10 2.10 2.30 2.90 155.00
1956 3.20 3.00 11.30 28.90 53.50 25.70 3.30 2.90 1.60 1.80 2.40 2.40 140.00
1951 2.10 3.00 9.50 48.80 53.10 131.00 11.00 39.50 15.70 12.00 25.50 11.60 430.00
1958 6.30 1.00 12.60 50.50 149.00 11.00 8.90 4.90 6.10 4.80 4.40 3.90 330.00
1959 2.90 2.30 3.70 10.00 26.40 22.60 3.10 5.00 3.40 9.80 10.40 1.30 106.90
1960 4.20 3.60 25.20 68.20 68.50 68.00 13.80 3.60 3.20 4.50 3.10 3.50 210.00
1961 3.20 2.90 6.40 25.50 64.00 28.10 5.50 9.60 11.80 13.40 8.80 5.20 185.00
1962 4.40 1.40 5.90 68.00 61.00 51.00 13.10 3.50 3.30 1.00 5.00 3.80 240.00
1963 3.30 5.20 20.40 34.40 42.10 9.10 4.60 5.20 10.50 5.10 3.10 2.10 146.30
1964 2.00 2.00 2.90 11.90 49.50 21.00 6.00 14.10 6.10 4.30 3.20 3.50 133.10
1965 3.80 3.90 8.10 11.10 104.90 105.20 55.20 14.60' 13.00 12.00 1.60 6.50 411.90
1966 5.20 4.50 34.10 63.00 81.40 38.20 10.30 8.80 4.40 4.10 3.00 1.30 264.30
1961 3.40 3.30 13.40 16.40 36.30 32.60 10.10 11.20 10.20 4.40 2.90 2.60 152.80
1968 2.90 3.20 1.40 25.40 66.60 80.30 18.10 33.90 5.30 4.50 3.10 3.20 255.10
1969 3.10 3.10 6.80 63.60 88.60 55.30 29.20 13.40 15.60 18.50 11.10 1.00 315.30
1910 4.10 3.90 5.40 18.10 65.60 35. 10 10.00 9.40 56.10 10.00 6.40 5.20 230.50
1911 5.10 5.10 15.90 21.80 32.40 34.60 8.60 1.80 5.60 12.90 9.50 1.60 113.30
1912 5.30 5.60 23.60 26.50 38.30 26.60 4.30 2.30 3.60 36.00 19.90 12.20 206.40
1913 8.90 6.90 24.90 61.10 113.10 131.60 43.20 10.20 1.10 6.20 4.30 4.30 505.00
1914 3.20 2.80 13.20 20.40 38.00 12.20 5.30 6.00 2.90 5.20 5.90 2.90 116.00
1915 2.80 3.40 11.00 62.40 136.00 125.00 69.10 9.50 1.40 3.90 3.70 3.30 436.10
1916 3.60 4.30 15.10 34.10 12.20 55.60 11.40 9.20 9.40 1.40 3.10 2.10 229.90
1911 2.40 2.20 3.30 1.50 10.30 1.20 5.10 9.90 6.30 5.60 3.60 3.40 66.80
1918 2.90 2.60 10.90 41.10 11.10 69.60 10.50 2.10 2.10 3.20 6.20 3.90 232.80
1919 4.00 4.60 23.50 126.50 119.90 150.30 61.20 20.30 5.10 4.30 3.10 3.30 593.30
1960 3.40 6.20 11.20 66.50 128.20 128.80 22.90 8.30 14.50 5.40 5.00 4.40 424.80
AVG 3.12 4.00 12.06 44.20 13.11 59.62 18.88 10.62 8.61 1.83 6.16 4.69 254.15
NOTE: ESTlnATED STREAnFLOV VALUES 1/51 TO 8/62