Upper Baker Dam
Upper Baker Dam is a dam spanning the Baker River in northern Washington in the United States of America. It is one of two dams on the river, the other one being the Lower Baker Dam a few miles downstream. The dam is used to generate hydroelectricity and provide flood control.
Construction of the dam was finished in 1959 by Puget Sound Energy as part of a power generating scheme, the Baker River Hydroelectric Project. The dam is a concrete gravity structure 312 feet (95 m) high and 1,200 feet (370 m) long, and is capable of producing 91 MW. Its reservoir stretches 9 miles (14 km) upstream and contains 285,000 acre-feet (352,000,000 m) of water.
Climate
Upper Baker Dam has a mediterranean climate (Köppen Csb).
| Climate data for Upper Baker Dam (1991–2020 normals, extremes 1965–present) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 57 (14) |
68 (20) |
76 (24) |
92 (33) |
102 (39) |
110 (43) |
101 (38) |
98 (37) |
100 (38) |
84 (29) |
66 (19) |
60 (16) |
110 (43) |
| Mean maximum °F (°C) | 46.6 (8.1) |
53.2 (11.8) |
65.1 (18.4) |
75.6 (24.2) |
83.4 (28.6) |
85.4 (29.7) |
90.7 (32.6) |
90.4 (32.4) |
84.9 (29.4) |
71.5 (21.9) |
54.2 (12.3) |
46.5 (8.1) |
93.8 (34.3) |
| Mean daily maximum °F (°C) | 37.9 (3.3) |
42.4 (5.8) |
47.9 (8.8) |
55.8 (13.2) |
63.7 (17.6) |
67.5 (19.7) |
74.4 (23.6) |
75.3 (24.1) |
68.6 (20.3) |
55.7 (13.2) |
43.8 (6.6) |
37.3 (2.9) |
55.9 (13.3) |
| Daily mean °F (°C) | 33.4 (0.8) |
35.8 (2.1) |
39.9 (4.4) |
45.8 (7.7) |
52.8 (11.6) |
57.2 (14.0) |
62.6 (17.0) |
63.3 (17.4) |
57.9 (14.4) |
48.2 (9.0) |
39.0 (3.9) |
33.6 (0.9) |
47.5 (8.6) |
| Mean daily minimum °F (°C) | 28.9 (−1.7) |
29.1 (−1.6) |
31.8 (−0.1) |
35.8 (2.1) |
41.9 (5.5) |
46.9 (8.3) |
50.9 (10.5) |
51.3 (10.7) |
47.3 (8.5) |
40.6 (4.8) |
34.2 (1.2) |
29.8 (−1.2) |
39.0 (3.9) |
| Mean minimum °F (°C) | 18.1 (−7.7) |
20.7 (−6.3) |
24.7 (−4.1) |
29.5 (−1.4) |
34.2 (1.2) |
40.0 (4.4) |
45.1 (7.3) |
45.0 (7.2) |
39.8 (4.3) |
30.8 (−0.7) |
24.6 (−4.1) |
19.6 (−6.9) |
13.3 (−10.4) |
| Record low °F (°C) | 0 (−18) |
4 (−16) |
10 (−12) |
24 (−4) |
28 (−2) |
35 (2) |
39 (4) |
39 (4) |
30 (−1) |
22 (−6) |
5 (−15) |
−2 (−19) |
−2 (−19) |
| Average precipitation inches (mm) | 15.31 (389) |
8.80 (224) |
10.42 (265) |
6.70 (170) |
4.52 (115) |
3.32 (84) |
1.78 (45) |
1.92 (49) |
4.83 (123) |
10.52 (267) |
15.97 (406) |
14.15 (359) |
98.24 (2,496) |
| Average snowfall inches (cm) | 13.1 (33) |
10.6 (27) |
3.4 (8.6) |
0.2 (0.51) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
2.2 (5.6) |
12.9 (33) |
42.4 (107.71) |
| Average extreme snow depth inches (cm) | 11.7 (30) |
8.7 (22) |
5.6 (14) |
0.2 (0.51) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
2.4 (6.1) |
9.6 (24) |
17.3 (44) |
| Average precipitation days (≥ 0.01 in) | 20.8 | 17.2 | 20.5 | 17.8 | 14.2 | 13.6 | 7.0 | 6.5 | 11.2 | 17.4 | 21.3 | 20.9 | 188.4 |
| Average snowy days (≥ 0.1 in) | 4.1 | 3.1 | 2.4 | 0.2 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.2 | 5.5 | 16.6 |
| Source 1: NOAA | |||||||||||||
| Source 2: National Weather Service | |||||||||||||
References
- ^ "Carbon Monitoring for Action".
- ^ "Baker River Hydroelectric Project" (PDF). Puget Sound Energy. October 2007. Archived from the original (PDF) on 2011-01-04. Retrieved 2011-01-17.
- ^ "3.3 Water Quantity" (PDF). Baker River Project, FERC No. 2150. Puget Sound Energy. March 2002. Retrieved 2011-01-18.
- ^ "U.S. Climate Normals Quick Access – Station: Upper Baker Dam, WA". National Oceanic and Atmospheric Administration. Retrieved December 29, 2022.
- ^ "NOAA Online Weather Data – NWS Seattle". National Weather Service. Retrieved December 29, 2022.
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