PROJ00519

• Contract/PO #: C153597
• Contractor Name: Windsor Reservoir and Canal Company
• Contract Type: Loan
• Water District: 3
• County: Larimer
• Bill Number: HB 91-1006
• Loan Projects - Doc Type: Feasibility Study

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Woodward. Clyde Consultants

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TABLE 1-1 - Temperature and precipitation datal

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Period of record, 1951-73

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Fort Collins

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Temperature PrecipiUlLion
Man'" Average Average Average Maxi- Mini- Average Average Average
daily daily daily mum mwn number """1 snowfall'
maxi-mum mini-mum ""'per. temper- of
ature of Inne of grO'WiDg
record' =""'. dog...
obyr
'F 'F 'F 'F 'F Inches Inches
January----- 41.5 13.6 27.6 71 .32 32 0.42 7.2
Pebruary--- 44.9 18.2 31.6 76 -41 47 0.41 6.5
March-- 49.4 22.6 36.1 80 -31 88 1.03 11.2
April- 59.8 32.2 46.1 88 .10 216 1.72 6.8
May 69.6 42.7 56.2 91 22 502 2.70 1.3
June 79.5 51.1 65.3 102 29 759 1.82 0
July 85.5 56.5 71.0 102 40 961 1.49 0
August- 83.7 54.6 69.2 99 39 905 1.52 0
Sept.ember- 75.0 44.7 59.9 95 18 597 1.19 0.6
October- 64.7 34.6 49.7 87 6 313 1.08 2.6
November- 50.5 23.2 36.9 79 .17 54 0.62 6.7
December- 43.2 16.9 30.0 76 .30 13 0.40 6.9
Year-- 62.3 34.2 48.3 4,487 14.40 49.9

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'F 'F
January---------- 39.9 10.5 25.3 37 0.35 5.3
February----- 45.3 16.4 30.9 57 0.29 4.6
March------ 51.2 22.5 36.8 loo 0.76 8.1
April----------- 61.8 32.7 47.3 248 1.36 4.3
May------ 72.6 43.3 58.0 558 2.16 0.3
June------- 82.8 52.0 67.4 822 1.81 0
July---- 89.3 57.3 73.4 1.035 1.24 0
AugUSl- 86.9 54.9 70.9 958 1.22 0
September- 17.8 44.6 61.3 639 1.33 0.6
October- 66.8 33.8 50.3 333 0.91 3.0
November- 50.8 21.7 36.3 65 0.53 5.4
December- 42.0 13.9 28.0 8 0.31 4.1
Year- 63.9 33.6 48.8 4,860 12.27 35.7

Greeley

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1 Table data from Soil Surveys of Weld and Larimer Counties, Colorado published by the U.S,
Department of Agriculture Soil Conservation Service, 1980.
2 A growing degree day is an index of the amount of heat available for plant growth. It can be
calculated by adding the maximum and minimum temperatures, dividing the sum by 2. and
subtracting the temperature below which growth is minimal for the principal crops in the Area
(4O"F). .
3 Data from 1931-1989

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22539GIDOUGLAS.DAM J2-17-90/REPORTS3

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