General Climate Information

The climate data in the LPDB are based on the 1951-80 climate normals (Atmospheric Environment Service, Environment Canada), except for vapour pressure and windspeed, which remain as 1941-70 normals. Actual station data, averaged using the Thiessen polygon method, was used to calculate values for each mapunit.

Known errors: Certain of the mapunits are known to contain errors in climate data. These errors may be due to selection of inappropriate climate stations to represent these areas, and/or they may be caused by the methods of data analyses. These mapunits are B2012, D3124, F3060, H1028, H3048 and H3054.