Cottonwood Creek Appendices

• Case Number: 05CW0149
• Stream Name: Cottonwood Creek
• Water Division: 4
• Water District: 60
• County: Montrose
• Instream Flow App - Doc Type: Supplemental Data

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Station: SAN MIGUEL RIVER AT URAVAN, CO.
Parameter: Streamflow (cfs)
Year: 1954-1994
State: COLORADO
County: MONTROSE

10: 09177000
Statistic: Mean
Latitude: 38:21 :26
Longitude: 108:42:44
Elevation: 5000.00
Drainage Area: 1499.00

Monthly Statistics

Jan Fob Mar Apr May Jun Jul Aug Sop Oct Noy Dee Ann
# Days 899 819 899 870 899 870 899 930 900 899 870 899 10653
Ayg Day 86.95 106.7 181.8 847.8 1185 1021 440.0 183.6 125.0 133.5 115.9 92.60 375.8
Max Day 260.0 530.0 1320 4900 5440 3800 2360 2110 890.0 735.0 1040 270.0 5440
Min Day 15.00 29.00 29.00 35.00 37.00 36.00 21.00 9.40 12.00 20.00 20.00 25.00 9.40
" Months 29 29 29 29 29 29 29 30 30 29 29 29 29
SOOY Month 24.23 43.35 111.4 539.3 798.3 569.6 335.9 151.5 94.93 74.22 64.65 34.44 193.6
Skew Month 0.684 1.01 1.22 0.900 0.974 0.609 1.31 1.75 1.38 1.03 2.81 1.19 0.545
Min Month 49.87 54.11 66.77 109.5 86.65 177.4 103.0 37.19 16.80 30.65 60.90 49.65 89.31
Max Month 139.4 225.5 459.0 2154 3420 2361 1306 603.5 416.3 333.3 384.8 187.6 758.4
Exceedences
1% 166.0 397.3 810.9 3842 4410 2900 1820 947.3 537.0 446.7 391.2 242.0 2795
5% 140.0 212.1 500.0 2790 2940 2370 1212 528.5 368.0 303.0 227.5 162.0 1550
10% 130.0 165.3 369.5 2080 2331 1930 968.0 384.0 280.0 258.0 166.0 148.0 1070
20% 110.0 135.4 252.0 1340 1820 1440 687,2 261.0 186.0 190.0 148.0 120.0 540.0
50% 80.00 90.50 124.0 539.0 958.5 872.0 319.5 130.0 87.00 109.0 97.00 80.00 132.0
80'~ 65.00 68.00 80.80 220.0 470.0 482.0 132.0 59.00 38.00 70.00 71.00 65.00 72.00
90% SS.OO 60.00 69.90 116.0 287.0 345.0 84.00 35.00 28.00 42.00 60.00 57.00 58.00
95% 49.90 55.00 61.95 92.50 167.8 270.5 54.95 26.00 22.00 31.00 50.00 50.00 42.00
99% 35.00 42.38 42.00 49.00 53.94 108.1 26.00 17.90 15.00 20.00 30.00 37.99 22.00

Prinled From; Hydrodata WeST_1, 03-17-98 10:03:1" AM