Calculation Information for 1981 to 2010 Canadian Normals Data

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 1981 and 2010 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.

Metadata including Station Name, Province, Country, Time Zone, Climate ID, WMO ID, TC ID, Latitude(dd mm), Longitude(ddd mm), Latitude(decimal degrees), Longitude(decimal degrees), and Elevation(m)
VANCOUVER INT'L A
Province: BC Latitude (dd mm): 49 11 N
Country: CAN Longitude (ddd mm): 123 11 W
Time Zone: PST Latitude (decimal degrees): 49.2 N
Climate ID: 1108447 Longitude (decimal degrees): -123.18
WMO ID: Elevation (m): 4.3
TC ID: YVR
Temperature
Element metadata including Begin Year, End Year, Total Number of Years, Missing Years, Total Count of Observations and % of Possible Observations
Temperature
Begin YearEnd YearTotal Number of YearsMissing YearsTotal Count of Observations% of Possible Observations
Daily Average (°C)198120103011089299.7
Standard Deviation198120103011089299.7
Daily Maximum (°C)198120103011089299.7
Daily Minimum (°C)198120103011089299.7
Extreme Maximum (°C)1937201026985100
Extreme Minimum (°C)1937201026987100
Precipitation
Element metadata including Begin Year, End Year, Total Number of Years, Missing Years, Total Count of Observations and % of Possible Observations
Precipitation
Begin YearEnd YearTotal Number of YearsMissing YearsTotal Count of Observations% of Possible Observations
Rainfall (mm)198120103011089699.7
Snowfall (cm)198120103011089699.7
Precipitation (mm)198120103011089699.7
Average Snow Depth (cm)198120103011089699.7
Median Snow Depth (cm)198120103011089699.7
Snow Depth at Month-end (cm)19812010300359100
Extreme Daily Rainfall (mm)193720102695899.9
Extreme Daily Snowfall (cm)193720102686899.9
Extreme Daily Precipitation (mm)1937201026904100
Extreme Snow Depth (cm)1955201020420100
Days with Maximum Temperature
Element metadata including Begin Year, End Year, Total Number of Years, Missing Years, Total Count of Observations and % of Possible Observations
Days with Maximum Temperature
Begin YearEnd YearTotal Number of YearsMissing YearsTotal Count of Observations% of Possible Observations
<= 0 °C198120103011077498.6
> 0 °C198120103011077498.6
> 10 °C198120103011077498.6
> 20 °C198120103011077498.6
> 30 °C198120103011077498.6
> 35 °C198120103011077498.6
Days with Minimum Temperature
Element metadata including Begin Year, End Year, Total Number of Years, Missing Years, Total Count of Observations and % of Possible Observations
Days with Minimum Temperature
Begin YearEnd YearTotal Number of YearsMissing YearsTotal Count of Observations% of Possible Observations
> 0 °C198120103011077498.6
<= 2 °C198120103011077498.6
<= 0 °C198120103011077498.6
< -2 °C198120103011077498.6
< -10 °C198120103011077498.6
< -20 °C198120103011077498.6
< - 30 °C198120103011077498.6
Days with Rainfall
Element metadata including Begin Year, End Year, Total Number of Years, Missing Years, Total Count of Observations and % of Possible Observations
Days with Rainfall
Begin YearEnd YearTotal Number of YearsMissing YearsTotal Count of Observations% of Possible Observations
>= 0.2 mm198120103011089699.7
>= 5 mm198120103011089699.7
>= 10 mm198120103011089699.7
>= 25 mm198120103011089699.7
Days With Snowfall
Element metadata including Begin Year, End Year, Total Number of Years, Missing Years, Total Count of Observations and % of Possible Observations
Days With Snowfall
Begin YearEnd YearTotal Number of YearsMissing YearsTotal Count of Observations% of Possible Observations
>= 0.2 cm198120103011089699.7
>= 5 cm198120103011089699.7
>= 10 cm198120103011089699.7
>= 25 cm198120103011089699.7
Days with Precipitation
Element metadata including Begin Year, End Year, Total Number of Years, Missing Years, Total Count of Observations and % of Possible Observations
Days with Precipitation
Begin YearEnd YearTotal Number of YearsMissing YearsTotal Count of Observations% of Possible Observations
>= 0.2 mm198120103011089699.7
>= 5 mm198120103011089699.7
>= 10 mm198120103011089699.7
>= 25 mm198120103011089699.7
Days with Snow Depth
Element metadata including Begin Year, End Year, Total Number of Years, Missing Years, Total Count of Observations and % of Possible Observations
Days with Snow Depth
Begin YearEnd YearTotal Number of YearsMissing YearsTotal Count of Observations% of Possible Observations
>= 1 cm198120103011089699.7
>= 5 cm198120103011089699.7
>= 10 cm198120103011089699.7
>= 20 cm198120103011089699.7
Wind
Element metadata including Begin Year, End Year, Total Number of Years, Missing Years, Total Count of Observations and % of Possible Observations
Wind
Begin YearEnd YearTotal Number of YearsMissing YearsTotal Count of Observations% of Possible Observations
Speed (km/h)19812010300262859100
Most Frequent Direction19812010300262856100
Maximum Hourly Speed (km/h)19532010508307100
Maximum Gust Speed (km/h)195520102034799.8
Days with Winds >= 52 km/h198120103011080398.9
Days with Winds >= 63 km/h198120103011080398.9
Degree Days
Element metadata including Begin Year, End Year, Total Number of Years, Missing Years, Total Count of Observations and % of Possible Observations
Degree Days
Begin YearEnd YearTotal Number of YearsMissing YearsTotal Count of Observations% of Possible Observations
Above 24 °C198120103011077498.6
Above 18 °C198120103011077498.6
Above 15 °C198120103011077498.6
Above 10 °C198120103011077498.6
Above 5 °C198120103011077498.6
Above 0 °C198120103011077498.6
Below 0 °C198120103011077498.6
Below 5 °C198120103011077498.6
Below 10 °C198120103011077498.6
Below 15 °C198120103011077498.6
Below 18 °C198120103011077498.6
Bright Sunshine
Element metadata including Begin Year, End Year, Total Number of Years, Missing Years, Total Count of Observations and % of Possible Observations
Bright Sunshine
Begin YearEnd YearTotal Number of YearsMissing YearsTotal Count of Observations% of Possible Observations
Total Hours1981200821717023296.7
Days with measureable1981200821717023296.7
% of possible daylight hours1981200821717023296.7
Extreme Daily1951200842803999.3
Humidex
Element metadata including Begin Year, End Year, Total Number of Years, Missing Years, Total Count of Observations and % of Possible Observations
Humidex
Begin YearEnd YearTotal Number of YearsMissing YearsTotal Count of Observations% of Possible Observations
Extreme Humidex19532010508286100
Days with Humidex >= 3019812010300262841100
Days with Humidex >= 3519812010300262841100
Days with Humidex >= 4019812010300262841100
Wind Chill
Element metadata including Begin Year, End Year, Total Number of Years, Missing Years, Total Count of Observations and % of Possible Observations
Wind Chill
Begin YearEnd YearTotal Number of YearsMissing YearsTotal Count of Observations% of Possible Observations
Extreme Wind Chill19532010508303100
Days with Wind Chill < -2019812010300262855100
Days with Wind Chill < -3019812010300262855100
Days with Wind Chill < -4019812010300262855100
Humidity
Element metadata including Begin Year, End Year, Total Number of Years, Missing Years, Total Count of Observations and % of Possible Observations
Humidity
Begin YearEnd YearTotal Number of YearsMissing YearsTotal Count of Observations% of Possible Observations
Average Vapour Pressure (kPa)19812010300262841100
Average Relative Humidity - 0600LST (%)1981201030010952100
Average Relative Humidity - 1500LST (%)1981201030010955100
Pressure
Element metadata including Begin Year, End Year, Total Number of Years, Missing Years, Total Count of Observations and % of Possible Observations
Pressure
Begin YearEnd YearTotal Number of YearsMissing YearsTotal Count of Observations% of Possible Observations
Average Station Pressure (kPa)19812010300262855100
Average Sea Level Pressure (kPa)19812010300262847100
Visibility (hours with)
Element metadata including Begin Year, End Year, Total Number of Years, Missing Years, Total Count of Observations and % of Possible Observations
Visibility (hours with)
Begin YearEnd YearTotal Number of YearsMissing YearsTotal Count of Observations% of Possible Observations
< 1 km1981201028422716086.4
1 to 9 km1981201028422716086.4
> 9 km1981201028422716086.4
Cloud Amount (hours with)
Element metadata including Begin Year, End Year, Total Number of Years, Missing Years, Total Count of Observations and % of Possible Observations
Cloud Amount (hours with)
Begin YearEnd YearTotal Number of YearsMissing YearsTotal Count of Observations% of Possible Observations
0 to 2 tenths1981201028422641686.1
3 to 7 tenths1981201028422641686.1
8 to 10 tenths1981201028422641686.1