Climate and solar data

Canadian Climate Normals 1971-2000
Environment Canada

Averages for:

  • Latitude, Longitude, Elevation
  • Monthly Temperature
  • Monthly Precipitation
  • Maximum hourly wind speed and date
  • Monthly degree day data in 5-degree increments

Historical Climate Data
Environment Canada

Historical data, useful for adjusting monthly energy consumption for weather. The process isn’t easy. For a guide to the process see Weather Normalization of Utility Bills by John Avina of Abraxas Energy Consulting.

  • Max Temperature, Min Temperature, Mean Temperature
  • Heat Degree Days, Cool Degree Days
  • Total Rain Total Snow, Total Precipitation
  • Snow on Ground
  • Direction of Max Wind Gust, Speed of Max Wind Gust

NASA Surface meteorology and Solar Energy: RETScreen Data

Based on monthly satellite observation averaged from 22 years of data. Since RETScreen uses this data, use the historical Environment Canada data to normalize the actual energy consumption and adjust based on this data set to evaluate the correctness of your RETScreen building model. 

  • Air temperature
  • Relative humidity
  • Daily solar radiation – horizontal
  • Atmospheric pressure
  • Wind speed
  • Earth temperature
  • Heating degree-days
  • Cooling degree-days

NASA Surface meteorology and Solar Energy

Based on monthly satellite observation averaged from 22 years of data

  • Parameters for Solar Cooking
  • Parameters for Sizing and Pointing of Solar Panels and for Solar Thermal Applications
  • Solar Geometry
  • Parameters for Tilted Solar Panels
  • Parameters for Sizing Battery or other Energy-storage Systems
  • Parameters for Sizing Surplus-product Storage Systems
  • Diurnal Cloud Information
  • Meteorology (Temperature)
  • Meteorology (Wind)

EnergyPlus Weather Simulation Data

Large amount of average weather data (including ground temperatures) assembled from multiple data sources.