Mean Monthly and Annual Maximum, Minimum, and Mean Temperature
Western Canada

Statistic: 30-year average daily maximum, minimum, and mean temperature 
Time period: 1961-1990
Time interval: monthly
Spatial format: grid
Data format: ARC/Info ASCII GRID

 Projection: Geographic
Spatial resolution: 1.25 arc-minutes (2 kilometers)
Spatial Extent: Western Canada
Units: Tenths of degrees Celsius
Date created: November 2002
Methods: The PRISM modeling system and Gaussian filter resolution enhancement. See FGDC-compliant metadata for details: maximum, minimum, mean. 

Examples 
January Mean Minimum
Temperature, entire region
July Mean Maximum Temperature,
Southern British Columbia
Features
  • Reviewed and approved by Environment Canada
  • Incorporates topographic effects on temperature
  • Includes coastal and lake effects on temperature
  • Accounts for arctic temperature inversions, and inversions on coasts and in inland valleys
  • Uses upper-air temperature data to capture high-elevation patterns
  • Consistent treatment and spatial quality control of station data
  • "Universal" geographic (latitude/longitude) projection allows conversion to any other coordinate system
  • Data format allows for easy import into ESRI's GIS products, as well as MAPINFO and Intergraph's GeoMedia

Data used in analysis

  • 793+ Stations
  • 694 Environment Canada stations
  • 99 Upper-air "stations" from the Gridded Global Upper-Air Statistics dataset
  • Many US border stations
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