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| COLUMBIA RIVER
WATER TEMPERATURES (°F) AND TEMPERATURE UNITS (°C) BELOW BONNEVILLE
DAM, 2001-2002. |
|
| (Data sources 2002: Oct. through Jan 25,
USACE monitoring station at Warrendale; Jan 26 through present, Ives Island
Gage 1; Historical data: 3 year
average USFWS gauge) |
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OCTOBER |
|
NOVEMBER |
|
DECEMBER |
|
JANUARY |
|
FEBURARY |
|
MARCH |
|
APRIL |
|
MAY |
|
JUNE |
|
|
|
TEMP |
|
TU's |
|
TEMP |
|
TU's |
|
TEMP |
|
TU's |
|
TEMP |
|
TU's |
|
TEMP |
|
TU's |
|
TEMP |
|
TU's |
|
TEMP |
|
TU's |
|
TEMP |
|
TU's |
|
TEMP |
|
TU's |
|
| DAY |
|
(°F) |
|
(°C) |
|
(°F) |
|
(°C) |
|
(°F) |
|
(°C) |
|
(°F) |
|
(°C) |
|
(°F) |
|
(°C) |
|
(°F) |
|
(°C) |
|
(°F) |
|
(°C) |
|
(°F) |
|
(°C) |
|
(°F) |
|
(°C) |
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
| 1 |
|
64 |
|
18 |
|
56 |
|
13 |
|
50 |
|
9 |
|
42 |
|
5 |
|
39 |
|
4 |
|
39 |
|
4 |
|
44 |
|
7 |
|
48 |
|
9 |
|
57 |
|
14 |
|
| 2 |
|
64 |
|
18 |
|
56 |
|
13 |
|
50 |
|
9 |
|
42 |
|
6 |
|
39 |
|
4 |
|
39 |
|
4 |
|
44 |
|
7 |
|
50 |
|
10 |
|
57 |
|
14 |
|
| 3 |
|
64 |
|
18 |
|
56 |
|
13 |
|
50 |
|
9 |
|
42 |
|
6 |
|
39 |
|
4 |
|
39 |
|
4 |
|
45 |
|
7 |
|
50 |
|
10 |
|
58 |
|
14 |
|
| 4 |
|
64 |
|
18 |
|
56 |
|
13 |
|
50 |
|
9 |
|
42 |
|
6 |
|
39 |
|
4 |
|
39 |
|
4 |
|
45 |
|
7 |
|
52 |
|
11 |
|
59 |
|
15 |
|
| 5 |
|
64 |
|
18 |
|
56 |
|
13 |
|
50 |
|
9 |
|
42 |
|
6 |
|
39 |
|
4 |
|
41 |
|
5 |
|
45 |
|
7 |
|
52 |
|
11 |
|
59 |
|
15 |
|
| 6 |
|
64 |
|
18 |
|
56 |
|
12 |
|
50 |
|
9 |
|
42 |
|
6 |
|
39 |
|
4 |
|
39 |
|
4 |
|
45 |
|
7 |
|
52 |
|
11 |
|
59 |
|
15 |
|
| 7 |
|
64 |
|
18 |
|
56 |
|
12 |
|
50 |
|
8 |
|
42 |
|
6 |
|
39 |
|
4 |
|
39 |
|
4 |
|
45 |
|
7 |
|
52 |
|
11 |
|
59 |
|
15 |
|
| 8 |
|
63 |
|
17 |
|
54 |
|
12 |
|
50 |
|
8 |
|
42 |
|
6 |
|
39 |
|
4 |
|
39 |
|
4 |
|
45 |
|
7 |
|
52 |
|
11 |
|
59 |
|
15 |
|
| 9 |
|
63 |
|
17 |
|
52 |
|
11 |
|
49 |
|
8 |
|
42 |
|
6 |
|
39 |
|
4 |
|
39 |
|
4 |
|
45 |
|
7 |
|
52 |
|
11 |
|
59 |
|
15 |
|
| 10 |
|
63 |
|
17 |
|
52 |
|
11 |
|
48 |
|
8 |
|
42 |
|
6 |
|
39 |
|
4 |
|
39 |
|
4 |
|
46 |
|
8 |
|
52 |
|
11 |
|
59 |
|
15 |
|
| 11 |
|
63 |
|
17 |
|
54 |
|
11 |
|
48 |
|
8 |
|
42 |
|
6 |
|
39 |
|
4 |
|
41 |
|
5 |
|
46 |
|
8 |
|
52 |
|
11 |
|
59 |
|
15 |
|
| 12 |
|
61 |
|
16 |
|
54 |
|
11 |
|
48 |
|
8 |
|
42 |
|
6 |
|
39 |
|
4 |
|
41 |
|
5 |
|
46 |
|
8 |
|
52 |
|
11 |
|
59 |
|
15 |
|
| 13 |
|
61 |
|
16 |
|
54 |
|
11 |
|
48 |
|
8 |
|
42 |
|
6 |
|
39 |
|
4 |
|
41 |
|
5 |
|
46 |
|
8 |
|
52 |
|
11 |
|
59 |
|
15 |
|
| 14 |
|
61 |
|
16 |
|
54 |
|
11 |
|
48 |
|
7 |
|
42 |
|
6 |
|
39 |
|
4 |
|
41 |
|
5 |
|
47 |
|
8 |
|
54 |
|
12 |
|
59 |
|
15 |
|
| 15 |
|
61 |
|
16 |
|
54 |
|
11 |
|
47 |
|
7 |
|
42 |
|
6 |
|
39 |
|
4 |
|
41 |
|
5 |
|
47 |
|
8 |
|
54 |
|
12 |
|
59 |
|
15 |
|
| 16 |
|
61 |
|
16 |
|
54 |
|
11 |
|
47 |
|
7 |
|
42 |
|
5 |
|
39 |
|
4 |
|
41 |
|
5 |
|
47 |
|
8 |
|
54 |
|
12 |
|
59 |
|
15 |
|
| 17 |
|
59 |
|
15 |
|
53 |
|
11 |
|
47 |
|
7 |
|
42 |
|
5 |
|
39 |
|
4 |
|
41 |
|
5 |
|
48 |
|
9 |
|
54 |
|
12 |
|
59 |
|
15 |
|
| 18 |
|
59 |
|
15 |
|
53 |
|
11 |
|
47 |
|
7 |
|
42 |
|
5 |
|
39 |
|
4 |
|
41 |
|
5 |
|
48 |
|
9 |
|
54 |
|
12 |
|
59 |
|
15 |
|
| 19 |
|
59 |
|
15 |
|
53 |
|
10 |
|
47 |
|
7 |
|
42 |
|
6 |
|
39 |
|
4 |
|
41 |
|
5 |
|
48 |
|
9 |
|
54 |
|
12 |
|
59 |
|
15 |
|
| 20 |
|
60 |
|
15 |
|
53 |
|
10 |
|
47 |
|
7 |
|
42 |
|
6 |
|
39 |
|
4 |
|
41 |
|
5 |
|
48 |
|
9 |
|
54 |
|
12 |
|
59 |
|
15 |
|
| 21 |
|
60 |
|
15 |
|
52 |
|
10 |
|
47 |
|
7 |
|
42 |
|
5 |
|
39 |
|
4 |
|
41 |
|
5 |
|
49 |
|
9 |
|
55 |
|
12 |
|
61 |
|
16 |
|
| 22 |
|
60 |
|
15 |
|
52 |
|
10 |
|
47 |
|
7 |
|
42 |
|
5 |
|
39 |
|
4 |
|
41 |
|
5 |
|
49 |
|
9 |
|
55 |
|
12 |
|
61 |
|
16 |
|
| 23 |
|
60 |
|
14 |
|
52 |
|
10 |
|
47 |
|
7 |
|
42 |
|
5 |
|
39 |
|
4 |
|
41 |
|
5 |
|
49 |
|
10 |
|
56 |
|
12 |
|
61 |
|
16 |
|
| 24 |
|
59 |
|
14 |
|
51 |
|
10 |
|
46 |
|
6 |
|
42 |
|
5 |
|
39 |
|
4 |
|
41 |
|
5 |
|
50 |
|
10 |
|
57 |
|
12 |
|
61 |
|
16 |
|
| 25 |
|
58 |
|
14 |
|
51 |
|
10 |
|
46 |
|
6 |
|
42 |
|
5 |
|
39 |
|
4 |
|
41 |
|
5 |
|
50 |
|
10 |
|
57 |
|
12 |
|
61 |
|
16 |
|
| 26 |
|
58 |
|
14 |
|
51 |
|
10 |
|
46 |
|
6 |
|
42 |
|
5 |
|
39 |
|
4 |
|
45 |
|
7 |
|
50 |
|
10 |
|
57 |
|
12 |
|
63 |
|
17 |
|
| 27 |
|
58 |
|
14 |
|
51 |
|
10 |
|
45 |
|
6 |
|
42 |
|
5 |
|
39 |
|
4 |
|
45 |
|
7 |
|
50 |
|
10 |
|
57 |
|
12 |
|
64 |
|
18 |
|
| 28 |
|
57 |
|
13 |
|
51 |
|
10 |
|
44 |
|
5 |
|
42 |
|
5 |
|
39 |
|
4 |
|
45 |
|
7 |
|
50 |
|
10 |
|
57 |
|
12 |
|
64 |
|
18 |
|
| 29 |
|
56 |
|
13 |
|
50 |
|
9 |
|
44 |
|
5 |
|
39 |
|
4 |
|
39 |
|
4 |
|
45 |
|
7 |
|
50 |
|
10 |
|
57 |
|
12 |
|
64 |
|
18 |
|
| 30 |
|
56 |
|
13 |
|
50 |
|
9 |
|
44 |
|
6 |
|
39 |
|
4 |
|
|
|
|
|
45 |
|
7 |
|
50 |
|
10 |
|
57 |
|
12 |
|
64 |
|
18 |
|
| 31 |
|
56 |
|
13 |
|
|
|
|
|
44 |
|
6 |
|
39 |
|
4 |
|
|
|
|
|
45 |
|
7 |
|
|
|
|
|
57 |
|
12 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| TOTAL |
|
-- |
|
487.3 |
|
-- |
|
330.3 |
|
-- |
|
224.5 |
|
-- |
|
166.4 |
|
-- |
|
116.0 |
|
-- |
|
158 |
|
-- |
|
254 |
|
-- |
|
355 |
|
-- |
|
466 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| AVE. |
|
60.7 |
|
15.7 |
|
53.2 |
|
11.0 |
|
47.5 |
|
7.2 |
|
41.7 |
|
5.4 |
|
39.2 |
|
4.0 |
|
41.2 |
|
5.1 |
|
47.2 |
|
8.5 |
|
53.7 |
|
11.5 |
|
60.0 |
|
15.5 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
REQUIRED TEMPERATURE UNITS (TU'S) |
|
|
|
CUMULATIVE TU'S (°C) SINCE INITIATION AND END
OF SPAWNING |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
FALL CHINOOK |
|
|
|
|
(°C) |
|
|
|
|
FALL CHINOOK |
FALL CHINOOK |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
EMERGENCE |
|
|
|
|
EYE OUT |
|
|
|
|
|
250 |
|
|
|
|
|
EVENT |
|
|
|
DATE |
|
EYED OUT |
|
|
|
HATCHING |
|
|
|
|
|
T |
|
+2°C |
|
+3°C |
|
|
HATCHING |
|
|
|
|
|
500 |
|
|
|
|
BEGIN SPAWNING |
10/22 |
|
250 |
|
11/9 |
|
502 |
|
12/4 |
|
1000 |
3/9 |
|
1/22 |
|
1/12 |
|
|
EMERGENCE |
|
|
|
|
|
1000 |
|
|
|
|
PEAK SPAWNING |
|
11/16 |
|
254 |
12/14 |
|
503 |
1/25 |
|
1008 |
4/25 |
|
3/24 |
|
3/9 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
END SPAWNING |
|
12/10 |
|
252 |
1/20 |
|
505 |
3/20 |
|
1004 |
5/16 |
|
4/21 |
|
4/10 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
CHUM |
|
|
|
|
|
|
|
|
|
|
|
|
|
CHUM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
EMERGENCE |
|
|
|
EYE OUT |
|
|
|
|
|
400 |
|
|
|
|
|
EVENT |
|
DATE |
|
EYED OUT |
|
HATCHING |
|
|
|
T |
|
+2°C |
|
+3°C |
|
|
HATCHING |
|
|
|
|
|
600 |
|
|
|
|
BEGIN SPAWNING |
11/12 |
|
402 |
12/30 |
|
602 |
|
2/8 |
|
805 |
3/26 |
|
2/13 |
1/29 |
|
EMERGENCE |
|
|
|
|
|
800 |
|
|
|
|
PEAK SPAWNING |
|
11/26 |
|
401 |
|
1/23 |
|
602 |
|
3/14 |
|
802 |
4/14 |
|
3/14 |
2/27 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
END SPAWNING |
|
12/20 |
|
402 |
|
3/15 |
|
607 |
|
4/14 |
|
805 |
|
5/5 |
|
4/11 |
3/31 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|