Canadian Climate Normals 1981-2010 Station Data

Temperature and Precipitation Graph

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Temperature and Precipitation Graph for 1981 to 2010 Canadian Climate Normals
ADDENBROKE ISLAND

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.

ADDENBROKE ISLAND *
BRITISH COLUMBIA
Current Station Operator: CCG

51°36'12.700" N

127°51'49.900" W

21.30 m

1060080

WCZ

* This station meets WMO standards for temperature and precipitation.

Temperature

1981 to 2010 Canadian Climate Normals station data
Temperature
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
Daily Average (°C)	4.7	4.9	6.1	8.0	10.6	13.0	14.9	15.2	13.0	9.6	6.2	4.7	9.2	A
Standard Deviation	1.5	1.5	1.2	1.0	1.2	0.9	0.7	0.9	0.8	0.8	1.8	1.5	1.1	A
Daily Maximum (°C)	7.0	7.6	9.0	11.2	13.9	16.1	17.9	18.3	15.9	12.0	8.5	7.0	12.0	A
Daily Minimum (°C)	2.2	2.2	3.2	4.7	7.3	9.9	11.8	12.1	10.1	7.1	3.8	2.3	6.4	A
Extreme Maximum (°C)	19.5	17.5	19.0	21.5	29.0	31.0	26.5	28.5	25.5	21.5	17.5	17.5
Date (yyyy/dd)	1986/ 12	1993/ 04	2004/ 29	2005/ 23	1983/ 29	2004/ 18	1987/ 18	2004/ 09	1988/ 03	1991/ 10	1980/ 04	2003/ 19
Extreme Minimum (°C)	-10.5	-15.0	-7.5	-0.5	1.0	5.0	7.5	7.8	3.5	-7.0	-16.0	-10.5
Date (yyyy/dd)	1982/ 05	1989/ 01	2002/ 07	1982/ 11	1999/ 03+	1999/ 01+	1994/ 02	1999/ 31	1992/ 14	1984/ 31	1985/ 26	1984/ 29

Precipitation

1981 to 2010 Canadian Climate Normals station data
Precipitation
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
Rainfall (mm)	392.8	249.3	257.3	234.3	162.4	158.0	108.7	138.2	228.1	431.2	491.6	352.9	3204.7	A
Snowfall (cm)	13.0	16.8	5.9	1.8	0.0	0.0	0.0	0.0	0.0	0.7	4.8	14.5	57.5	A
Precipitation (mm)	405.7	266.1	263.2	236.1	162.4	158.0	108.7	138.2	228.1	432.0	496.4	367.4	3262.2	A
Average Snow Depth (cm)	1	1	0	0	0	0	0	0	0	0	0	0	0	C
Median Snow Depth (cm)	0	0	0	0	0	0	0	0	0	0	0	0	0	C
Snow Depth at Month-end (cm)	0	0	0	0	0	0	0	0	0	0	0	1	0	C
Extreme Daily Rainfall (mm)	294.2	117.6	104.4	124.9	58.6	122.2	68.0	91.2	153.8	130.0	184.2	207.6
Date (yyyy/dd)	1996/ 10	2005/ 01	2001/ 12	1998/ 26	2005/ 22	1983/ 05	1995/ 24	1978/ 05	1980/ 05	1990/ 08	1993/ 01	1980/ 10
Extreme Daily Snowfall (cm)	22.0	41.6	17.3	7.6	0.0	0.0	0.0	0.0	0.0	13.0	13.2	32.4
Date (yyyy/dd)	1989/ 13	1990/ 14	1987/ 01	1988/ 06	1978/ 01+	1978/ 01+	1978/ 01+	1978/ 01+	1978/ 01+	1984/ 29	1990/ 28	1994/ 07
Extreme Daily Precipitation (mm)	294.2	117.6	104.4	124.9	58.6	122.2	68.0	91.2	153.8	130.0	184.2	207.6
Date (yyyy/dd)	1996/ 10	2005/ 01	2001/ 12	1998/ 26	2005/ 22	1983/ 05	1995/ 24	1978/ 05	1980/ 05	1990/ 08	1993/ 01	1980/ 10
Extreme Snow Depth (cm)	22	44	14	0	0	0	0	0	0	7	10	20
Date (yyyy/dd)	1982/ 06+	1990/ 15	1991/ 03	1981/ 01+	1981/ 01+	1981/ 01+	1981/ 01+	1980/ 01+	1981/ 01+	1984/ 30+	2006/ 29	1990/ 30

Days with Maximum Temperature

1981 to 2010 Canadian Climate Normals station data
Days with Maximum Temperature
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
<= 0 °C	1.0	0.44	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.04	0.44	0.92	2.9	A
> 0 °C	30.0	27.8	31.0	30.0	31.0	30.0	31.0	31.0	30.0	31.0	29.6	30.1	362.3	A
> 10 °C	4.4	4.7	9.7	17.9	28.4	29.9	31.0	31.0	30.0	24.1	7.5	4.8	223.4	A
> 20 °C	0.0	0.0	0.0	0.08	0.85	1.8	4.7	5.8	1.2	0.08	0.0	0.0	14.5	A
> 30 °C	0.0	0.0	0.0	0.0	0.0	0.04	0.0	0.0	0.0	0.0	0.0	0.0	0.04	A
> 35 °C	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	A

Days with Minimum Temperature

1981 to 2010 Canadian Climate Normals station data
Days with Minimum Temperature
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
> 0 °C	22.9	21.9	27.8	29.6	31.0	30.0	31.0	31.0	30.0	30.7	26.8	24.3	337.0	A
<= 2 °C	14.2	13.3	10.4	4.0	0.35	0.0	0.0	0.0	0.0	0.77	7.7	14.1	65.0	A
<= 0 °C	8.0	6.3	3.2	0.35	0.0	0.0	0.0	0.0	0.0	0.35	3.2	6.7	28.1	A
< -2 °C	2.9	1.4	0.73	0.0	0.0	0.0	0.0	0.0	0.0	0.08	0.88	1.8	7.9	A
< -10 °C	0.04	0.15	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.12	0.04	0.35	A
< -20 °C	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	A
< - 30 °C	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	A

Days with Rainfall

1981 to 2010 Canadian Climate Normals station data
Days with Rainfall
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
>= 0.2 mm	22.3	18.5	22.0	20.9	18.3	17.4	14.5	15.9	17.5	23.5	24.1	23.0	237.8	A
>= 5 mm	15.6	11.2	13.7	13.0	9.7	8.6	5.7	7.2	9.3	16.0	18.3	15.9	144.2	A
>= 10 mm	11.7	7.6	9.5	8.2	5.7	5.3	3.7	4.9	7.0	12.8	14.8	11.5	102.5	A
>= 25 mm	5.2	3.0	2.5	2.3	1.4	1.4	1.1	1.4	3.2	6.2	6.9	4.4	38.9	A

Days With Snowfall

1981 to 2010 Canadian Climate Normals station data
Days With Snowfall
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
>= 0.2 cm	2.5	2.5	1.7	0.58	0.0	0.0	0.0	0.0	0.0	0.08	1.2	2.8	11.3	A
>= 5 cm	1.1	1.3	0.46	0.15	0.0	0.0	0.0	0.0	0.0	0.08	0.28	1.2	4.6	A
>= 10 cm	0.38	0.48	0.12	0.0	0.0	0.0	0.0	0.0	0.0	0.04	0.12	0.32	1.5	A
>= 25 cm	0.0	0.07	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.04	0.11	A

Days with Precipitation

1981 to 2010 Canadian Climate Normals station data
Days with Precipitation
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
>= 0.2 mm	22.8	19.3	22.3	20.9	18.3	17.4	14.5	15.9	17.5	23.5	24.2	23.5	240.1	A
>= 5 mm	16.2	12.1	14.1	13.2	9.7	8.6	5.7	7.2	9.3	16.1	18.6	16.6	147.2	A
>= 10 mm	12.2	8.4	9.7	8.4	5.7	5.3	3.7	4.9	7.0	12.8	14.9	12.0	104.7	A
>= 25 mm	5.3	3.3	2.7	2.3	1.4	1.4	1.1	1.4	3.2	6.2	7.0	4.5	39.7	A

Days with Snow Depth

1981 to 2010 Canadian Climate Normals station data
Days with Snow Depth
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
>= 1 cm	2.6	2.2	0.74	0.0	0.0	0.0	0.0	0.0	0.0	0.08	0.48	1.3	7.4	D
>= 5 cm	0.82	0.86	0.30	0.0	0.0	0.0	0.0	0.0	0.0	0.08	0.17	0.53	2.8	D
>= 10 cm	0.06	0.41	0.22	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.04	0.0	0.73	D
>= 20 cm	0.0	0.09	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.09	D

Wind

1981 to 2010 Canadian Climate Normals station data
Wind
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
Maximum Hourly Speed (km/h)	97	93	74	97	87	64	52	55	74	84	93	93
Date (yyyy/dd)	1981/ 22	2001/ 28	1970/ 06	1984/ 15	1976/ 27	1987/ 12+	1996/ 14	1971/ 23	2000/ 17	1984/ 12	2001/ 15	1996/ 01
Direction of Maximum Hourly Speed	S	SE	S	SE	SE	S	NW	S	SE	SE	SE	NW

Degree Days

1981 to 2010 Canadian Climate Normals station data
Degree Days
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
Above 24 °C	0	0	0	0	0	0	0	0	0	0	0	0	0	C
Above 18 °C	0	0	0	0	0.2	0.7	0.9	1.4	0.1	0	0	0	3.2	C
Above 15 °C	0	0	0	0	1.2	4.8	16.9	22.4	3	0.1	0	0	48.5	C
Above 10 °C	0.8	0.5	0.5	7	37.5	90.4	150.8	161.7	91.7	19.5	2	0.6	563.1	C
Above 5 °C	33.6	28.7	48.5	91.3	174.3	239.7	305.8	316.7	240.8	142.7	54.1	29.7	1705.9	C
Above 0 °C	148.8	142.9	190.4	239.8	329.3	389.7	460.8	471.7	390.8	296.6	188.5	149.4	3398.8	C
Below 0 °C	6.2	3.4	0.5	0	0	0	0	0	0	0.2	3.4	4.7	18.2	C
Below 5 °C	45.9	30.3	13.6	1.5	0	0	0	0	0	1.3	19	39.9	151.4	C
Below 10 °C	168.2	143.2	120.6	67.2	18.2	0.6	0	0	0.9	33.2	116.8	165.8	834.7	C
Below 15 °C	322.4	283.8	275	210.2	136.9	65.1	21.1	15.7	62.2	168.8	264.8	320.3	2146.3	C
Below 18 °C	415.4	368.5	368	300.2	228.9	150.9	98.1	87.6	149.3	261.6	354.8	413.3	3196.6	C

Humidex

1981 to 2010 Canadian Climate Normals station data
Humidex
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
Extreme Humidex	14.8	15.2	15.0	19.0	22.4	26.5	28.3	32.3	26.0	21.0	15.4	16.4
Date (yyyy/dd)	2001/ 02	1998/ 15+	1994/ 28	1997/ 22	1998/ 01	1995/ 29	1998/ 27	1997/ 10	1994/ 16	2001/ 04	1995/ 15	1997/ 12

Wind Chill

1981 to 2010 Canadian Climate Normals station data
Wind Chill
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
Extreme Wind Chill (°C)	-13	-11	-7	0	0	0	0	0	0	0	-11	-17
Date (yyyy/dd)	1996/ 28	1994/ 23	1995/ 05	1994/ 01+	1994/ 01+	1994/ 01+	1994/ 01+	1994/ 01+	1994/ 01+	1994/ 01+	1996/ 21	1996/ 29

Frost-Free

1981 to 2010 Canadian Climate Normals station data
Frost-Free
	Date/Days	Code
Average Date of Last Spring Frost	Mar 13	C
Average Date of First Fall Frost	Nov 19	C
Average Length of Frost-Free Period	250 Days	C

1981 to 2010 Canadian Climate Normals station data
Frost-Free
	10%	25%	33%	50%	66%	75%	90%
Probability of last temperature in spring <= 0°C, on or after (Date)	Apr 09	Mar 27	Mar 23	Mar 13	Mar 05	Feb 28	Feb 16
Probability of first temperature in fall <= 0°C, on or before (Date)	Oct 30	Nov 08	Nov 11	Nov 21	Nov 26	Dec 01	Dec 09
Probability of frost-free period equal to or less than indicated period (Days)	222	231	237	250	258	265	283

Legend

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
+ = First or oldest date of 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 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.

ADDENBROKE ISLAND

Province/Territory

Latitude (dd mm):

51 36 N

Country

CAN

Longitude (ddd mm):

127 51 W

Time Zone

PST

Latitude (decimal degrees):

51.6 N

Climate ID:

1060080

Longitude (decimal degrees):

127.86 W

WMO ID:

Elevation (m):

21.3

TC ID:

WCZ

Temperature

1981 to 2010 Canadian Climate Normals Element Metadata
Temperature
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
Daily Average (°C)	1981	2007	27	1	9460	100
Standard Deviation	1981	2007	27	1	9460	100
Daily Maximum (°C)	1981	2007	27	1	9463	100
Daily Minimum (°C)	1981	2007	27	1	9463	100
Extreme Maximum (°C)	1978	2007			10559	100
Extreme Minimum (°C)	1978	2007			10559	100

Precipitation

1981 to 2010 Canadian Climate Normals Element Metadata
Precipitation
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
Rainfall (mm)	1981	2007	27	1	9463	100
Snowfall (cm)	1981	2007	27	1	9463	100
Precipitation (mm)	1981	2007	27	1	9463	100
Average Snow Depth (cm)	1981	2007	26	1	9272	98
Median Snow Depth (cm)	1981	2007	26	1	9272	98
Snow Depth at Month-end (cm)	1981	2007	27	1	308	99
Extreme Daily Rainfall (mm)	1978	2007			10559	100
Extreme Daily Snowfall (cm)	1978	2007			10559	100
Extreme Daily Precipitation (mm)	1978	2007			10559	100
Extreme Snow Depth (cm)	1980	2007			9479	99.2

Days with Maximum Temperature

1981 to 2010 Canadian Climate Normals Element Metadata
Days with Maximum Temperature
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
<= 0 °C	1981	2007	27	1	9463	100
> 0 °C	1981	2007	27	1	9463	100
> 10 °C	1981	2007	27	1	9463	100
> 20 °C	1981	2007	27	1	9463	100
> 30 °C	1981	2007	27	1	9463	100
> 35 °C	1981	2007	27	1	9463	100

Days with Minimum Temperature

1981 to 2010 Canadian Climate Normals Element Metadata
Days with Minimum Temperature
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
> 0 °C	1981	2007	27	1	9463	100
<= 2 °C	1981	2007	27	1	9463	100
<= 0 °C	1981	2007	27	1	9463	100
< -2 °C	1981	2007	27	1	9463	100
< -10 °C	1981	2007	27	1	9463	100
< -20 °C	1981	2007	27	1	9463	100
< - 30 °C	1981	2007	27	1	9463	100

Days with Rainfall

1981 to 2010 Canadian Climate Normals Element Metadata
Days with Rainfall
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
>= 0.2 mm	1981	2007	27	1	9463	100
>= 5 mm	1981	2007	27	1	9463	100
>= 10 mm	1981	2007	27	1	9463	100
>= 25 mm	1981	2007	27	1	9463	100

Days With Snowfall

1981 to 2010 Canadian Climate Normals Element Metadata
Days With Snowfall
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
>= 0.2 cm	1981	2007	27	1	9463	100
>= 5 cm	1981	2007	27	1	9463	100
>= 10 cm	1981	2007	27	1	9463	100
>= 25 cm	1981	2007	27	1	9463	100

Days with Precipitation

1981 to 2010 Canadian Climate Normals Element Metadata
Days with Precipitation
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
>= 0.2 mm	1981	2007	27	1	9463	100
>= 5 mm	1981	2007	27	1	9463	100
>= 10 mm	1981	2007	27	1	9463	100
>= 25 mm	1981	2007	27	1	9463	100

Days with Snow Depth

1981 to 2010 Canadian Climate Normals Element Metadata
Days with Snow Depth
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
>= 1 cm	1981	2007	26	4	8644	91.3
>= 5 cm	1981	2007	26	4	8644	91.3
>= 10 cm	1981	2007	26	4	8644	91.3
>= 20 cm	1981	2007	26	4	8644	91.3

Wind

1981 to 2010 Canadian Climate Normals Element Metadata
Wind
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
Maximum Hourly Speed (km/h)	1969	2001			198356	75.9

Degree Days

1981 to 2010 Canadian Climate Normals Element Metadata
Degree Days
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
Above 24 °C	1981	2007	27	2	9371	99
Above 18 °C	1981	2007	27	2	9371	99
Above 15 °C	1981	2007	27	2	9371	99
Above 10 °C	1981	2007	27	2	9371	99
Above 5 °C	1981	2007	27	2	9371	99
Above 0 °C	1981	2007	27	2	9371	99
Below 0 °C	1981	2007	27	2	9371	99
Below 5 °C	1981	2007	27	2	9371	99
Below 10 °C	1981	2007	27	2	9371	99
Below 15 °C	1981	2007	27	2	9371	99
Below 18 °C	1981	2007	27	2	9371	99

Humidex

1981 to 2010 Canadian Climate Normals Element Metadata
Humidex
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
Extreme Humidex	1994	2001			13787	19.9

Wind Chill

1981 to 2010 Canadian Climate Normals Element Metadata
Wind Chill
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
Extreme Wind Chill (°C)	1994	2001			13790	19.9

Frost-Free

1981 to 2010 Canadian Climate Normals Element Metadata
Frost-Free
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
Average Date of Last Spring Frost	1981	2006	22	2	22	84.6
Average Date of First Fall Frost	1981	2006	22	2	22	84.6
Average Length of Frost-Free Period	1981	2006	22	2	22	84.6
Probability of last temperature in spring <= 0°C, on or after (Date)
10 %	1978	2006			25	86.2
25 %	1978	2006			25	86.2
33 %	1978	2006			25	86.2
50 %	1978	2006			25	86.2
66 %	1978	2006			25	86.2
75 %	1978	2006			25	86.2
90 %	1978	2006			25	86.2
Probability of first temperature in fall <= 0°C, on or before (Date)
10 %	1978	2006			25	86.2
25 %	1978	2006			25	86.2
33 %	1978	2006			25	86.2
50 %	1978	2006			25	86.2
66 %	1978	2006			25	86.2
75 %	1978	2006			25	86.2
90 %	1978	2006			25	86.2
Probability of frost-free period equal to or less than indicated period (Days)
10 %	1978	2006			25	86.2
25 %	1978	2006			25	86.2
33 %	1978	2006			25	86.2
50 %	1978	2006			25	86.2
66 %	1978	2006			25	86.2
75 %	1978	2006			25	86.2
90 %	1978	2006			25	86.2

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Date modified:: 2026-04-16

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Canadian Climate Normals 1981-2010 Station Data

Temperature and Precipitation Graph for 1981 to 2010 Canadian Climate Normals
ADDENBROKE ISLAND

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Canadian Climate Normals 1981-2010 Station Data

Temperature and Precipitation Graph for 1981 to 2010 Canadian Climate NormalsADDENBROKE ISLAND

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Temperature and Precipitation Graph for 1981 to 2010 Canadian Climate Normals
ADDENBROKE ISLAND