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: PRINCE RUPERT A
Province: BC Latitude (dd mm): 54 17 N
Country: CAN Longitude (ddd mm): 130 26 W
Time Zone: PST Latitude (decimal degrees): 54.29 N
Climate Id: 1066481 Longitude (decimal degrees): -130.44
WMO Id: Elevation (m): 35.4
TC Id: Station Status: Inactive
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 2006 25 1 8880 97.9
Standard Deviation1981 2006 25 1 8880 97.9
Daily Maximum (°C)1981 2006 25 1 8887 98.0
Daily Minimum (°C)1981 2006 25 1 8890 98.0
Precipitation:
Rainfall (mm)1981 2006 25 1 8858 97.7
Snowfall (cm)1981 2006 25 1 8858 97.7
Precipitation (mm)1981 2006 25 1 8858 97.7
Average Snow Depth (cm)1981 2006 25 2 8769 97.1
Median Snow Depth (cm)1981 2006 25 2 8769 97.1
Snow Depth at Month-end (cm)1981 2006 26 1 296 99.7
Days with Maximum Temperature:
<= 0 °C1981 2006 25 1 8950 98.7
> 0 °C1981 2006 25 1 8950 98.7
> 10 °C1981 2006 25 1 8950 98.7
> 20 °C1981 2006 25 1 8950 98.7
> 30 °C1981 2006 25 1 8950 98.7
> 35 °C1981 2006 25 1 8950 98.7
Days with Minimum Temperature:
> 0 °C1981 2006 26 1 8982 99.0
<= 2 °C1981 2006 26 1 8982 99.0
<= 0 °C1981 2006 26 1 8982 99.0
< -2 °C1981 2006 26 1 8982 99.0
< -10 °C1981 2006 26 1 8982 99.0
< -20 °C1981 2006 26 1 8982 99.0
< - 30 °C1981 2006 26 1 8982 99.0
Days with Rainfall:
>= 0.2 mm1981 2006 26 1 8920 98.4
>= 5 mm1981 2006 26 1 8920 98.4
>= 10 mm1981 2006 26 1 8920 98.4
>= 25 mm1981 2006 26 1 8920 98.4
Days With Snowfall:
>= 0.2 cm1981 2006 25 1 8889 98.0
>= 5 cm1981 2006 25 1 8889 98.0
>= 10 cm1981 2006 25 1 8889 98.0
>= 25 cm1981 2006 25 1 8889 98.0
Days with Precipitation:
>= 0.2 mm1981 2006 25 1 8858 97.7
>= 5 mm1981 2006 25 1 8858 97.7
>= 10 mm1981 2006 25 1 8858 97.7
>= 25 mm1981 2006 25 1 8858 97.7
Days with Snow Depth:
>= 1 cm1981 2006 25 3 8309 92.0
>= 5 cm1981 2006 25 3 8309 92.0
>= 10 cm1981 2006 25 3 8309 92.0
>= 20 cm1981 2006 25 3 8309 92.0
Wind:
Speed (km/h)1981 2004 24 1 206982 98.0
Most Frequent Direction1981 2004 24 1 206982 99.8
Degree Days:
Above 24 °C1981 2005 25 2 8679 95.7
Above 18 °C1981 2005 25 2 8679 95.7
Above 15 °C1981 2005 25 2 8679 95.7
Above 10 °C1981 2005 25 2 8679 95.7
Above 5 °C1981 2005 25 2 8679 95.7
Above 0 °C1981 2005 25 2 8679 95.7
Below 0 °C1981 2005 25 2 8679 95.7
Below 5 °C1981 2005 25 2 8679 95.7
Below 10 °C1981 2005 25 2 8679 95.7
Below 15 °C1981 2005 25 2 8679 95.7
Below 18 °C1981 2005 25 2 8679 95.7
Bright Sunshine:
Total Hours1981 2001 21 1 174624 96.8
Days with measureable1981 2001 21 1 174624 96.8
% of possible daylight hours1981 2001 21 1 174624 96.8
Humidex:
Days with Humidex >= 301981 2004 24 1 206967 98.0
Days with Humidex >= 351981 2004 24 1 206967 98.0
Days with Humidex >= 401981 2004 24 1 206967 98.0
Wind Chill:
Days with Wind Chill < -201981 2004 24 1 206968 98.0
Days with Wind Chill < -301981 2004 24 1 206968 98.0
Days with Wind Chill < -401981 2004 24 1 206968 98.0
Humidity:
Average Vapour Pressure (kPa)1981 2004 24 1 206967 98.0
Average Relative Humidity - 0600LST (%)1981 2004 24 1 8529 98.0
Average Relative Humidity - 1500LST (%)1981 2004 24 1 8702 98.9
Pressure:
Average Station Pressure (kPa)1981 2004 24 1 207241 98.2
Average Sea Level Pressure (kPa)1981 2004 24 1 207085 98.1
Frost-Free:
Average Date of Last Spring Frost1981 2003 18 4 18 78.3
Average Date of First Fall Frost1981 2003 18 4 18 78.3
Average Length of Frost-Free Period1981 2003 18 4 18 78.3
Probability of last temperature in spring of 0 °C or lower on or after indicated dates
10 %1963 2003 40 6 34 82.9
25 %1963 2003 40 6 34 82.9
33 %1963 2003 40 6 34 82.9
50 %1963 2003 40 6 34 82.9
66 %1963 2003 40 6 34 82.9
75 %1963 2003 40 6 34 82.9
90 %1963 2003 40 6 34 82.9
Probability of first temperature in fall of 0 °C or lower on or after indicated dates
10 %1963 2003 40 6 34 82.9
25 %1963 2003 40 6 34 82.9
33 %1963 2003 40 6 34 82.9
50 %1963 2003 40 6 34 82.9
66 %1963 2003 40 6 34 82.9
75 %1963 2003 40 6 34 82.9
90 %1963 2003 40 6 34 82.9
Probability of frost-free period equal to or less than indicated period (Days)
10 %1963 2003 40 6 34 82.9
25 %1963 2003 40 6 34 82.9
33 %1963 2003 40 6 34 82.9
50 %1963 2003 40 6 34 82.9
66 %1963 2003 40 6 34 82.9
75 %1963 2003 40 6 34 82.9
90 %1963 2003 40 6 34 82.9