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Canadian Climate Normals 1971-2000 Station Data
Temperature and Precipitation Graph
Temperature and Precipitation Graph for 1971 to 2000 Canadian Climate Normals
TORONTO LESTER B. PEARSON INT'L A
Symbol | Description |
---|---|
Daily Maximum Temperature (°C) | |
Daily Average Temperature (°C) | |
Daily Minimum Temperature (°C) | |
Precipitation (mm) |
Normals Data
The minimum number of years used to calculate these Normals is indicated by a code for each element. A "+" beside an extreme date indicates that this date is the first occurrence of the extreme value. Values and dates in bold indicate all-time extremes for the location.
Data used in the calculation of these Normals may be subject to further quality assurance checks. This may result in minor changes to some values presented here.
* This station meets WMO standards for temperature and precipitation.
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- A = WMO "3 and 5 rule" (i.e. no more than 3 consecutive and no more than 5 total missing for either temperature or precipitation)
- B = At least 25 years
- C = At least 20 years
- D = At least 15 years
- + = Most recent occurrence of the extreme value
Station / Element Metadata
Statistics listed below are provided as a guide to determine the validity of Normals and Extremes calculations. For example, a station with 30 years of record between 1971 and 2000 with no missing years would be a more reliable normal than a station with 15 years of record and 2 missing years. Less than 100% possible observations indicates that out of the total number of observations used, some records were missing.
TORONTO LESTER B. PEARSON INT'L A
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