Lower Granite Fish Ladder Daily Average Temperatures

Date Tailwater
Observation
Deck
Entrance Fish Trap Turn Pool Diffuser Exit Pool Forebay
South of
Exit Pool
Forebay
North of
Exit Pool
30-Dec 42.05 41.67 34.41 42.11 42.03 42.10 41.85 42.09
31-Dec 41.90 41.53 32.44 42.02 41.94 42.01 41.75 41.99
01-Jan 41.66 41.35 33.11 41.80 41.71 41.80 41.62 41.77
02-Jan 41.28 41.09 38.19 41.54 41.43 41.52 41.38 41.51
03-Jan 40.69 40.62 43.01 41.08 40.94 41.02 40.81 41.01
04-Jan 39.85 39.83 43.55 40.27 40.12 40.17 39.95 40.15
05-Jan 39.45 39.20 41.72 41.05 40.41 39.86 39.38 39.58
06-Jan 39.75 39.34 40.92 41.56 40.98 40.29 39.48 39.68
07-Jan 40.69 40.25 40.97 43.00 42.23 41.07 40.52 40.74
08-Jan 41.44 40.99 40.80 41.49 40.98 40.61 41.17 41.46
09-Jan 41.83 41.43 42.21 43.26 42.61 41.60 41.65 41.84
10-Jan 41.80 41.41 44.73 45.97 45.71 43.37 41.60 41.88
11-Jan 41.57 41.21 47.01 48.58 48.36 44.82 41.52 41.72
12-Jan 41.49 41.13 49.29 51.33 50.92 45.92 41.35 41.57
13-Jan 41.54 41.19 48.76 50.17 49.73 45.78 41.49 41.61
14-Jan 41.55 41.18 44.24 44.89 44.13 42.46 41.39 41.59
15-Jan 41.38 41.01 41.07 41.05 40.63 40.68 41.38 41.47
16-Jan 41.35 40.95 40.04 39.72 39.49 39.57 41.27 41.38
17-Jan 41.56 41.14 39.40 38.98 38.73 39.25 41.49 41.54
18-Jan 41.68 41.29 37.88 37.48 37.28 37.95 41.61 41.73
19-Jan 41.46 41.09 37.36 36.93 36.70 37.56 41.44 41.54
20-Jan 41.12 40.75 36.70 36.32 36.07 36.90 41.06 41.20
21-Jan 40.95 40.57 37.00 36.70 36.40 37.46 40.86 41.03
22-Jan 40.76 40.37 36.22 35.85 35.68 36.56 40.72 40.85
23-Jan 40.46 40.08 35.70 35.32 35.15 36.16 40.41 40.58
24-Jan 40.05 39.68 33.78 33.32 33.27 34.10 40.01 40.18
25-Jan 39.69 39.32 32.84 32.89 32.27 33.56 39.53 39.80
26-Jan 39.47 39.08 31.60 31.24 31.02 32.76 39.42 39.57
27-Jan 39.36 38.97 36.23 37.11 36.64 36.82 39.24 39.46
28-Jan 39.27 38.88 38.11 40.03 39.52 38.77 39.20 39.34
29-Jan 39.28 38.90 41.74 43.89 43.10 40.83 39.10 39.36

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