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), Elevation(m), and Station Status
Station Name: WINNIPEG RICHARDSON INT'L A
Province: MAN Latitude (dd mm): 49 55 N
Country: CAN Longitude (ddd mm): 97 14 W
Time Zone: CST Latitude (decimal degrees): 49.92 N
Climate Id: 5023222 Longitude (decimal degrees): -97.23
WMO Id: 71852 Elevation (m): 238.7
TC Id: YWG Station Status: Active
Element metadata including Begin Year, End Year, Total Number of Years, Missing Years, Total Count of Observations and % of Possible Observations
 Begin Year End Year Total Number of Years Missing Years Total Count of Observations % of Possible Observations
Temperature:
Daily Average (°C)1981 2007 27 0 9827 100.0
Standard Deviation1981 2007 27 0 9827 100.0
Daily Maximum (°C)1981 2007 27 0 9828 100.0
Daily Minimum (°C)1981 2007 27 0 9829 100.0
Precipitation:
Rainfall (mm)1981 2007 27 1 9737 99.1
Snowfall (cm)1981 2007 27 1 9737 99.1
Precipitation (mm)1981 2007 27 1 9737 99.1
Average Snow Depth (cm)1981 2007 27 2 8923 97.7
Median Snow Depth (cm)1981 2007 27 2 8923 97.7
Snow Depth at Month-end (cm)1981 2007 27 2 298 99.3
Days with Maximum Temperature:
<= 0 °C1981 2007 27 1 9769 99.4
> 0 °C1981 2007 27 1 9769 99.4
> 10 °C1981 2007 27 1 9769 99.4
> 20 °C1981 2007 27 1 9769 99.4
> 30 °C1981 2007 27 1 9769 99.4
> 35 °C1981 2007 27 1 9769 99.4
Days with Minimum Temperature:
> 0 °C1981 2007 27 0 9799 99.7
<= 2 °C1981 2007 27 0 9799 99.7
<= 0 °C1981 2007 27 0 9799 99.7
< -2 °C1981 2007 27 0 9799 99.7
< -10 °C1981 2007 27 0 9799 99.7
< -20 °C1981 2007 27 0 9799 99.7
< - 30 °C1981 2007 27 0 9799 99.7
Days with Rainfall:
>= 0.2 mm1981 2007 27 1 9768 99.4
>= 5 mm1981 2007 27 1 9768 99.4
>= 10 mm1981 2007 27 1 9768 99.4
>= 25 mm1981 2007 27 1 9768 99.4
Days With Snowfall:
>= 0.2 cm1981 2007 27 1 9768 99.4
>= 5 cm1981 2007 27 1 9768 99.4
>= 10 cm1981 2007 27 1 9768 99.4
>= 25 cm1981 2007 27 1 9768 99.4
Days with Precipitation:
>= 0.2 mm1981 2007 27 1 9768 99.4
>= 5 mm1981 2007 27 1 9768 99.4
>= 10 mm1981 2007 27 1 9768 99.4
>= 25 mm1981 2007 27 1 9768 99.4
Days with Snow Depth:
>= 1 cm1981 2007 27 2 8923 97.7
>= 5 cm1981 2007 27 2 8923 97.7
>= 10 cm1981 2007 27 2 8923 97.7
>= 20 cm1981 2007 27 2 8923 97.7
Wind:
Speed (km/h)1981 2010 30 0 262836 100.0
Most Frequent Direction1981 2010 30 0 262811 99.9
Degree Days:
Above 24 °C1981 2007 27 1 9769 99.4
Above 18 °C1981 2007 27 1 9769 99.4
Above 15 °C1981 2007 27 1 9769 99.4
Above 10 °C1981 2007 27 1 9769 99.4
Above 5 °C1981 2007 27 1 9769 99.4
Above 0 °C1981 2007 27 1 9769 99.4
Below 0 °C1981 2007 27 1 9769 99.4
Below 5 °C1981 2007 27 1 9769 99.4
Below 10 °C1981 2007 27 1 9769 99.4
Below 15 °C1981 2007 27 1 9769 99.4
Below 18 °C1981 2007 27 1 9769 99.4
Humidex:
Days with Humidex >= 301981 2010 30 0 262643 99.9
Days with Humidex >= 351981 2010 30 0 262643 99.9
Days with Humidex >= 401981 2010 30 0 262643 99.9
Wind Chill:
Days with Wind Chill < -201981 2010 30 0 262827 100.0
Days with Wind Chill < -301981 2010 30 0 262827 100.0
Days with Wind Chill < -401981 2010 30 0 262827 100.0
Humidity:
Average Vapour Pressure (kPa)1981 2010 30 0 262643 99.9
Average Relative Humidity - 0600LST (%)1981 2010 30 0 10946 99.9
Average Relative Humidity - 1500LST (%)1981 2010 30 0 10944 99.9
Pressure:
Average Station Pressure (kPa)1981 2010 30 0 262826 100.0
Average Sea Level Pressure (kPa)1981 2010 30 0 262673 99.9
Visibility (hours with):
< 1 km1981 2009 26 3 218376 83.1
1 to 9 km1981 2009 26 3 218376 83.1
> 9 km1981 2009 26 3 218376 83.1
Cloud Amount (hours with):
0 to 2 tenths1981 2009 26 3 216888 82.5
3 to 7 tenths1981 2009 26 3 216888 82.5
8 to 10 tenths1981 2009 26 3 216888 82.5
Frost-Free:
Average Date of Last Spring Frost1981 2006 26 0 26 100.0
Average Date of First Fall Frost1981 2006 26 0 26 100.0
Average Length of Frost-Free Period1981 2006 26 0 26 100.0
Probability of last temperature in spring of 0 °C or lower on or after indicated dates
10 %1939 2006 67 0 68 100.0
25 %1939 2006 67 0 68 100.0
33 %1939 2006 67 0 68 100.0
50 %1939 2006 67 0 68 100.0
66 %1939 2006 67 0 68 100.0
75 %1939 2006 67 0 68 100.0
90 %1939 2006 67 0 68 100.0
Probability of first temperature in fall of 0 °C or lower on or after indicated dates
10 %1939 2006 67 0 68 100.0
25 %1939 2006 67 0 68 100.0
33 %1939 2006 67 0 68 100.0
50 %1939 2006 67 0 68 100.0
66 %1939 2006 67 0 68 100.0
75 %1939 2006 67 0 68 100.0
90 %1939 2006 67 0 68 100.0
Probability of frost-free period equal to or less than indicated period (Days)
10 %1939 2006 67 0 68 100.0
25 %1939 2006 67 0 68 100.0
33 %1939 2006 67 0 68 100.0
50 %1939 2006 67 0 68 100.0
66 %1939 2006 67 0 68 100.0
75 %1939 2006 67 0 68 100.0
90 %1939 2006 67 0 68 100.0