_REVISION - M1981302 ‎(103)‎

• Permit No: M1981302
• IBM Index Class Name: REVISION
• Doc Name: EXHIBIT D & EXHIBIT G WATER RESOURCES
• Type & Sequence: AM1
• Media Type: D
• Archive: No

Figure C-3
TOTAL LAKE EVAPORATION AT FORT COLLINS
(All Values in Inches)
Nov. -March
Per
Year Apr. May June July Aug . Sep. Oct. May-Oct. Annual Amount Month
1951 2. 86 3. 81 3. 84 5. 48 3. 97 3 . 95 2 . 57 23. 62 32. 58 6. 10 1 . 22
1952 2. 99 3. 60 6.11 5 . 50 4 .73 4 . 26 2. 67 26. 87 37 . 06 7 . 20 1 .44
1953 2. 47 4 . 31 5. 25 5. 43 5. 21 5. 16 3 . 06 28 . 42 39 . 20 8 . 31 1. 66
1954 5. 05 4 . 44 6. 51 6. 98 5. 62 4 . 39 2. 79 30.73 42. 39 6. 61 1 . 32
1955 5.40 6. 60 4 . 12 6. 79 4 . 80 4 . 24 2. 77 28 . 72 39. 61 5. 49 1 . 10
n 1956 3 . 29 4 . 05 6. 20 5. 97 4 . 73 4 . 84 3 . 19 28 . 98 39. 97 7 .70 1 .54
1957 2. 11 3. 84 4 . 94 5. 56 4.79 3 . 95 1 .77 24 . 85 34 . 28 7.32 1 . 46
1958 3. 34 3. 96 5. 08 4 . 79 5. 54 4 . 25 2. 91 26. 53 36. 59 6. 72 1 . 34
1959 3. 68 3. 83 4 . 79 5 . 66 5. 02 3 . 88 1. 76 24 .94 34 . 40 5 .78 1 . 16
1960 4 . 20 4 . 03 5. 58 5. 97 6. 36 4 . 62 2. 52 29. 08 40. 11 6. 83 1 .37
Avg. 3. 54 4 . 19 5. 24 5. 81 5. 08 4 . 35 2. 60 27 . 27 37 .62 6.81 1 . 36
Std.Dev. 1 . 07 . 68 . 88 . 65 . 65 . 41 . 49 2. 28 3 . 15 0. 87 0.17
%Avg. 3. 0 16. 2 16. 8 11 . 2 12 . 8 9 . 4 11 . 3 8 . 4 8 .4 12. 8 12. 5
NOTES : a) Converted from pan evaporation using coefficient of 0. 78 .
b) Annual amount computed on the basis that May-Oct. evaporation represents 72 . 5%
of annual .
c) Nov.-March amount computed by deducting April-Oct. amount from annual .