|
Chief Joseph Dam Project - Main Page
Project Water Supply
Current Conditions:
Reservoir Storage
Weather Conditions (NOAA)
Precipitation
Streamflow
Streamflow Forecast Map
Snowpack Information
Drought Index
Historic Conditions:
|
Normal |
8.83 in |
|
Maximum - 1983 |
14.57 in |
|
Minimum - 1976 |
4.82 in |
|
Wenatchee, Washington 1961-1990 |
|
|
|
Mean Annual |
51.4 °F |
|
Daily Maximum - 07/17/1941 |
110 °F |
|
Daily Minimum - 12/30/1968 |
-19 °F |
|
Wenatchee, Washington 1877-1996 |
|
|
Growing Season |
232 days |
|
Elevation of irrigable area |
878 -1450 ft |
|
|
Drainage area at Chief Joseph Dam |
75,700 mi2 |
|
Annual discharge : |
|
|
Maximum - 1959 |
101,013,660 acre-ft |
|
Minimum - 1977 |
56,855,700 acre-ft |
|
Average - 1952-1996 |
78,942,776 acre-ft |
|
Streamflows: Columbia River at Bridgeport, Washington (USGS)
Project Water Quality
Chief Joseph
|
