Historical Climate Station data

Environment and Climate Change Canada Climate Archive

Daily observed data from meteorological stations are available through the National Climate Data and Information Archive of Environment and Climate Change Canada.

Table 1: List of potentially useful variables from Environment and Climate Change Canada's (ECCC) National Archive Observations (not exhaustive), with their unit, at surface or upper air levels, and from hourly, daily and monthly frequency.
Variable Unit Levels Frequency Time Window
Ceiling m Near Surface Hourly For the active stations: from their beginning to present (regularly updated by ECCC)
Visibility m
Mean Sea Level Pressure kPa
Dew Point Temperature °C
Wind Speed km/h
Wind Direction (16 pts) degree
Wind Direction (36 pts) degree
Station Pressure kPa
Dry-Bulb Temperature °C
Wet-Bulb Temperature °C
Relative Humidity fraction [0-1]
Rainfall mm
Sunshine hrs
RF2 Sky Radiation MJ/m2
RF3 Reflected Solar Radiation (RF1-RF2) MJ/m2
RF4 Net All Wave Radiation MJ/m2
RF5 Total Downward Radiation MJ/m2
RF6 Total Upward Radiation MJ/m2
RF7 Daylight Illumination MJ/m2
RF8 Direct Solar Radiation MJ/m2
RF9 Downward Longwave Radiation MJ/m2
GRP118 Hourly Weather MJ/m2
Total Rainfall mm Daily & Monthly
Total Snowfall cm
Total Precipitation mm
Maximum Temperature K Daily
Minimum Temperature K
Mean Temperature K
Snow on the Ground cm Hourly
Total Daily Sunshine hours hrs
Greatest Amount of Rainfall in 5 minutes mm
Greatest Amount of Rainfall in 10 minutes mm
Greatest Amount of Rainfall in 15 minutes mm
Greatest Amount of Rainfall in 30 minutes mm
Greatest Amount of Rainfall in 1 hour mm
Greatest Amount of Rainfall in 2 hours mm
Greatest Amount of Rainfall in 6 hours mm
Greatest Amount of Rainfall in 12 hours mm
Greatest Amount of Rainfall in 24 hours mm
Temperature °C Upper Air Levels 00, 06, 12 and 18 UTC -
Pressure kPa
Altitude m
Relative Humidity fraction [0-1]
Wind Speed m/s
Wind Direction degree
Variable Unit Levels Frequency Time Window
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