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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SAN JUAN RIVER AT PAGOSA SPRINGS
USGS GAGE RECOROS
(VALUES IN 1000 ACRE-FEET)
YEAR JAN FEB liAR APR IIAY JUN JUL AUG SEP OCT NOV DEC TOTAL
1951 2.10 2.20 4.40 11.10 50.10 38.60 5.30 6.10 3.50 2.60 2.50 3.10 131.60
1952 3.30 3.00 4.20 55.30 113.70 168.50 39.30 13.10 6.50 4.00 2.80 3.40 417 .10
1953 3.00 3.10 8.20 24.40 50.00 68.00 10.00 5.60 1.30 2.50 4.10 2.60 182.80
1954 2.10 3.30 4.80 30.90 58.80 21.60 7.00 8.30 5.00 6.50 2.70 2.30 153.30
1955 2.50 2.30 4.20 12.60 48.40 47.90 8.40 11.30 4.00 2.30 2.00 2.70 148.60
1956 2.80 2.60 11.10 24.00 72.70 50.60 5.20 3.10 1.10 1.40 2.40 2.00 179.00
1957 2.10 2.80 6.90 25.90 62.30 182.40 91.00 39.20 13.50 9.10 11.30 6.60 453.10
1958 4.50 4.70 7.50 42.80 114.10 77.60 9.00 5.10 7.30 4.10 3.40 2.90 283.00
1959 2.50 3.00 4.80 11.50 34.30 32.90 3.90 8.80 3.20 16.10 11.30 4.00 136.30
1960 3.30 3.20 19.80 64.40 67.40 88.60 14.40 4.00 2.60 3.40 2.70 2.50 276.30
1961 2.20 2.10 6.30 21.90 63.70 39.40 7.10 8.70 12.70 11.40 6.80 4.20 186.50
1962 4.10 5.70 6.60 56.70 79.90 71.20 16.70 3.80 2.70 5.30 4.00 3.30 260.00
1963 2.60 3.90 11.20 26.00 56.70 14.80 4.20 3.00 4.50 3.40 2.80 2.30 135.40
1964 1.90 1.70 3.10 12.70 57.60 30.90 7.90 16.30 6.20 4.20 2.90 3.20 148.60
1965 3.30 3.40 4.80 41. 70 103.20 130.50 73.70 17; 10' 17.90 13.30 7.20 6.60 422.70
1966 5.40 4.10 16.60 42.50 87.70 44.10 11.10 6.70 2.60 2.30 2.70 5.70 231. 50
1967 2.90 3.30 9.20 15.60 49.20 46.60 16.50 21.80 10.40 3.90 2.30 2.60 184.30
1968 2.80 3.10 6.80 16.50 65.50 91.90 19.40 31. 30 5.40 3.90 3.40 2.80 252.80
1969 2.70 2.60 4.70 38.70 86.20 70.50 34.70 12.10 13.10 14.30 8.70 5.20 293.50
1970 3.50 3.20 4.10 10.80 70.60 49.80 13.00 7.00 51.10 9.20 6.40 4.50 233.20
1971 4.20 4.10 10.30 25.50 35.90 51.50 9.60 6.10 4.70 11.20 7.90 5.10 176.10
1972 4.80 4.60 15.70 23.20 48.30 28.50 4.30 1.80 3.00 35.20 11.30 7.00 187.70
1973 6.50 5.50 9.90 29.20 125.70 153.70 60.20 9.80 6.40 4.10 3.00 3.00 417.00
1974 2.90 2.70 9.40 17.20 55.70 21.70 7.10 6.50 1.90 3.50 4.60 2. 70 135.90
1975 2.50 2.70 5.00 22.80 88.80 139.70 71.50 10.80 5.50 2.90 2.10 3.00 357.30
1976 2.60 3.20 9.00 26.30 76.70 76.00 16.10 7.30 9.10 7.30 3.40 2.20 239.20
1977 2.10 2.20 3.20 8.40 15.50 9.70 5.90 15.10 8.50 9.50 4.10 2.80 87.00
1978 2.60 2.60 9.10 32.20 63.30 93.90 13.50 2.50 1.70 2.50 4.60 2.80 231.30
1979 3.40 3.30 6.90 49.90 138.70 177. 70 86.00 18.50 4.50 3.30 2.80 3.00 498.00
1980 3.00 3.40. 5.00 34.90 86.60 143.30 31.50 7.00 9.40 4.70 4.00 3.70 336.50
AVG 3.14 3.25 7.76 28.52 70.91 75.40 23.45 10.59 7.64 6.91 4.67 3.59 245.85