_PERMIT FILE - M1981302 ‎(24)‎

• Permit No: M1981302
• IBM Index Class Name: Permit File
• Doc Name: WATER RESOURCES
• 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. 00 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 .