WMO Region IV (North America): Greatest Average Annual Precipitation
| Record Value | 7 meters (276") per year (highest 7.982 m; lowest 4.900 m) over the period of record (1923-1935; 1998-2000) |
|---|---|
| Averaging Period | 15 years |
| Length of Record | 1923-1935; 1998-2000 (Henderson Lake Hatchery) |
| Instrumentation | manual raingauge |
| Geospatial Location | Henderson Lake, British Colombia [49°88'N, 125°08'W, elevation: 3.66 m (12 ft)] |
References
Environment Canada (Dr. David Phillips and Malcolm Geast)
Discussion
Because of relative uncertainty in comparative measurements over time of record, this record is averaged to the value of 7 meters per year. Greater accuracy (e.g. to the nearest millimeter) is not suggested.
Note: Hawaii is considered part of WMO Region 5 (Southwest Pacific).
WMO Region IV (North America)
![Henderson Lake, British Colombia [48°08'N, 125°08'W, elevation: 35 m (115 ft)]](/sites/default/files/2024-02/hendersonlake1.jpg "Closeup and Regional Satellite Images of Henderson Lake, British Colombia")
Closeup and Regional Satellite Images of Henderson Lake, British Colombia
![Henderson Lake, British Colombia [48°08'N, 125°08'W, elevation: 35 m (115 ft)]](/sites/default/files/2024-02/hendersonlake2.jpg "Closeup and Regional Satellite Images of Henderson Lake, British Colombia")
Closeup and Regional Satellite Images of Henderson Lake, British Colombia