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
ATLIN

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.

ATLIN *
BRITISH COLUMBIA
Current Station Operator: CCN

59°34'00.000" N

133°42'00.000" W

673.60 m

1200560

* 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)	-12.8	-10.7	-5.5	1.3	6.9	11.3	13.4	12.4	8.1	2.6	-5.5	-8.1	1.1	A
Standard Deviation	6.6	4.3	3.0	1.9	1.2	1.1	0.9	1.2	1.3	1.5	4.2	4.2	2.8	A
Daily Maximum (°C)	-9.1	-6.1	-0.3	6.7	12.5	17.2	19.0	17.5	12.3	5.7	-2.5	-5.0	5.7	A
Daily Minimum (°C)	-16.5	-15.3	-10.7	-4.1	1.3	5.3	7.8	7.3	3.8	-0.6	-8.4	-11.2	-3.4	A
Extreme Maximum (°C)	7.2	10.6	13.0	20.0	26.7	31.0	30.0	30.0	26.7	19.5	13.3	10.0
Date (yyyy/dd)	1926/ 07+	1968/ 27	1994/ 29	1995/ 27	1936/ 31	2004/ 19	1927/ 17+	1999/ 05	1938/ 02	1993/ 01	1926/ 03	1999/ 22+
Extreme Minimum (°C)	-47.8	-47.2	-39.4	-31.1	-10.0	-3.9	-1.1	-2.2	-11.1	-26.7	-33.3	-50.0
Date (yyyy/dd)	1925/ 31	1917/ 03+	1919/ 01	1920/ 02	2002/ 05	1911/ 01	1937/ 03+	1910/ 21+	1972/ 24	1935/ 27	1909/ 30	1917/ 26

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)	1.4	1.3	0.5	3.0	17.2	29.7	32.8	34.2	40.7	27.9	9.1	3.2	200.8	A
Snowfall (cm)	44.2	24.1	16.9	6.4	1.0	0.0	0.0	0.0	1.3	9.5	27.1	33.2	163.9	A
Precipitation (mm)	45.6	25.4	17.4	9.4	18.2	29.7	32.8	34.2	42.0	37.4	36.1	36.4	364.7	A
Extreme Daily Rainfall (mm)	21.8	15.0	2.2	8.6	21.8	27.0	37.3	33.0	42.0	43.2	50.0	17.5
Date (yyyy/dd)	1934/ 07	1938/ 24	1995/ 31	1995/ 03	1910/ 26	2006/ 03	1930/ 15	1981/ 27	1993/ 22	1945/ 13	1988/ 29	1937/ 19
Extreme Daily Snowfall (cm)	38.1	24.1	27.9	15.2	10.0	6.4	0.0	6.4	21.6	25.4	25.4	31.8
Date (yyyy/dd)	1928/ 16	1933/ 04	1909/ 11	1930/ 14	1985/ 04	1910/ 11	1906/ 01+	1922/ 31	1974/ 30	1944/ 26	1930/ 22	1927/ 01
Extreme Daily Precipitation (mm)	38.1	24.1	27.9	15.2	24.4	27.0	37.3	33.0	46.0	43.2	54.0	31.8
Date (yyyy/dd)	1928/ 16	1933/ 04	1909/ 11	1930/ 14	1910/ 26	2006/ 03	1930/ 15	1981/ 27	1993/ 22	1945/ 13	1988/ 29	1927/ 01
Extreme Snow Depth (cm)	61	380	57	53	12	0	0	0	7	15	38	73
Date (yyyy/dd)	1992/ 27+	1984/ 06	1985/ 03+	1996/ 01	1986/ 01	1981/ 01+	1981/ 01+	1980/ 01+	1986/ 25	1991/ 31	1991/ 12	1991/ 09

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	24.5	21.1	13.0	1.7	0.0	0.0	0.0	0.0	0.12	3.8	17.2	21.3	102.9	A
> 0 °C	6.5	7.1	18.0	28.3	31.0	30.0	31.0	31.0	29.9	27.2	12.8	9.7	262.4	A
> 10 °C	0.0	0.0	0.04	4.7	20.7	29.0	30.8	30.4	22.2	3.3	0.04	0.0	141.1	A
> 20 °C	0.0	0.0	0.0	0.0	0.84	6.2	9.6	6.6	0.24	0.0	0.0	0.0	23.5	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	0.81	0.44	0.81	3.6	19.0	29.0	31.0	30.7	24.3	13.4	2.0	1.7	156.8	A
<= 2 °C	30.9	28.1	31.0	29.3	20.2	4.2	0.27	1.0	10.8	22.9	29.1	30.6	238.2	A
<= 0 °C	30.2	27.8	30.2	26.4	12.0	0.96	0.04	0.27	5.7	17.6	27.9	29.3	208.3	A
< -2 °C	27.7	25.7	26.0	16.6	3.0	0.0	0.0	0.0	0.88	8.2	23.4	25.8	157.2	A
< -10 °C	20.9	18.9	13.9	3.0	0.0	0.0	0.0	0.0	0.04	1.1	8.6	15.3	81.7	A
< -20 °C	10.2	9.0	4.6	0.31	0.0	0.0	0.0	0.0	0.0	0.08	2.2	4.7	31.1	A
< - 30 °C	3.7	1.4	0.31	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.08	0.69	6.2	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	0.67	0.48	0.46	1.7	7.8	9.4	10.9	11.7	12.7	9.4	1.9	1.1	68.1	A
>= 5 mm	0.04	0.04	0.0	0.04	0.80	1.8	1.9	2.2	2.4	1.8	0.46	0.23	11.6	A
>= 10 mm	0.0	0.0	0.0	0.0	0.24	0.69	0.77	0.54	0.88	0.52	0.15	0.04	3.8	A
>= 25 mm	0.0	0.0	0.0	0.0	0.0	0.08	0.0	0.04	0.04	0.0	0.08	0.0	0.24	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	11.8	8.2	7.0	2.3	0.44	0.08	0.0	0.0	0.40	4.2	10.5	11.5	56.3	A
>= 5 cm	3.0	1.6	0.81	0.31	0.08	0.0	0.0	0.0	0.08	0.40	1.3	2.0	9.6	A
>= 10 cm	1.2	0.41	0.15	0.12	0.04	0.0	0.0	0.0	0.0	0.04	0.42	0.38	2.7	A
>= 25 cm	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 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	12.2	8.4	7.4	3.7	8.0	9.4	10.9	11.7	12.8	12.6	11.8	12.4	121.3	A
>= 5 mm	3.1	1.6	0.88	0.46	0.84	1.8	1.9	2.2	2.4	2.3	1.9	2.2	21.6	A
>= 10 mm	1.2	0.41	0.15	0.12	0.28	0.69	0.77	0.54	0.88	0.60	0.62	0.42	6.6	A
>= 25 mm	0.0	0.0	0.0	0.0	0.0	0.08	0.0	0.04	0.04	0.0	0.08	0.0	0.24	A

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	0.5	0.7	0.7	0	0	0	0	1.9	C
Above 15 °C	0	0	0	0	0.1	5.1	10.8	8.4	0.2	0	0	0	24.7	C
Above 10 °C	0	0	0	0	6.9	54.1	106.7	82.6	12.1	0.9	0	0	263.3	C
Above 5 °C	0	0.1	0	7	71.7	188	260.1	230.5	100	20	0.4	0.5	878.2	C
Above 0 °C	4	4.7	13.2	71.1	215.4	337.9	415.1	385.2	242.9	104.9	13	9.7	1817.1	C
Below 0 °C	404.2	306.4	184.1	31	0.4	0	0	0	0.7	24.9	174.7	260.7	1387.1	C
Below 5 °C	555.2	442.9	325.9	116.9	11.8	0.1	0	0.2	7.7	95	312.1	406.5	2274.3	C
Below 10 °C	710.2	583.9	480.9	259.9	102	16.2	1.7	7.4	69.8	231	461.7	561.1	3485.6	C
Below 15 °C	865.2	725	635.9	409.9	250.2	117.2	60.7	88.2	207.9	385	611.7	716.1	5073.1	C
Below 18 °C	958.2	809.7	728.9	499.9	343.1	202.6	143.6	173.5	297.8	478	701.7	809.1	6,146	C

Frost-Free

1981 to 2010 Canadian Climate Normals station data
Frost-Free
	Date/Days	Code
Average Date of Last Spring Frost	Jun 03	C
Average Date of First Fall Frost	Sept 09	C
Average Length of Frost-Free Period	97 Days	C

1981 to 2010 Canadian Climate Normals station data
Frost-Free
Probability of last temperature in spring <= 0°C, on or after (Date)	10%	25%	33%	50%	66%	75%	90%
Date	Jun 25	Jun 15	Jun 13	Jun 06	Jun 03	May 31	May 23
Probability of first temperature in fall <= 0°C, on or before (Date)	10%	25%	33%	50%	66%	75%	90%
Date	Aug 24	Aug 31	Sep 02	Sep 08	Sep 13	Sep 16	Sep 21
Probability of frost-free period equal to or less than indicated period (Days)	10%	25%	33%	50%	66%	75%	90%
Days	68	79	82	92	99	103	113

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
+ = 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 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.

ATLIN

Province/Territory

Latitude (dd mm):

59 34 N

Country

CAN

Longitude (ddd mm):

133 42 W

Time Zone

PST

Latitude (decimal degrees):

59.57 N

Climate ID:

1200560

Longitude (decimal degrees):

133.7 W

WMO ID:

Elevation (m):

673.6

TC ID:

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	9458	100
Standard Deviation	1981	2007	27	1	9458	100
Daily Maximum (°C)	1981	2007	27	1	9461	100
Daily Minimum (°C)	1981	2007	27	1	9462	100
Extreme Maximum (°C)	1899	2007			29411	99.6
Extreme Minimum (°C)	1899	2007			29364	99.6

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
Extreme Daily Rainfall (mm)	1899	2007			29403	99.9
Extreme Daily Snowfall (cm)	1899	2007			29482	100
Extreme Daily Precipitation (mm)	1899	2007			29372	99.9
Extreme Snow Depth (cm)	1980	2007			5439	58.1

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	9402	99.4
> 0 °C	1981	2007	27	1	9402	99.4
> 10 °C	1981	2007	27	1	9402	99.4
> 20 °C	1981	2007	27	1	9402	99.4
> 30 °C	1981	2007	27	1	9402	99.4
> 35 °C	1981	2007	27	1	9402	99.4

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	9433	99.7
<= 2 °C	1981	2007	27	1	9433	99.7
<= 0 °C	1981	2007	27	1	9433	99.7
< -2 °C	1981	2007	27	1	9433	99.7
< -10 °C	1981	2007	27	1	9433	99.7
< -20 °C	1981	2007	27	1	9433	99.7
< - 30 °C	1981	2007	27	1	9433	99.7

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

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	1	9341	98.7
Above 18 °C	1981	2007	27	1	9341	98.7
Above 15 °C	1981	2007	27	1	9341	98.7
Above 10 °C	1981	2007	27	1	9341	98.7
Above 5 °C	1981	2007	27	1	9341	98.7
Above 0 °C	1981	2007	27	1	9341	98.7
Below 0 °C	1981	2007	27	1	9341	98.7
Below 5 °C	1981	2007	27	1	9341	98.7
Below 10 °C	1981	2007	27	1	9341	98.7
Below 15 °C	1981	2007	27	1	9341	98.7
Below 18 °C	1981	2007	27	1	9341	98.7

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	1982	2006	21	2	21	84.0
Average Date of First Fall Frost	1982	2006	21	2	21	84.0
Average Length of Frost-Free Period	1982	2006	21	2	21	84.0
Probability of last temperature in spring <= 0°C, on or after (Date)
10 %	1906	2006			58	57.4
25 %	1906	2006			58	57.4
33 %	1906	2006			58	57.4
50 %	1906	2006			58	57.4
66 %	1906	2006			58	57.4
75 %	1906	2006			58	57.4
90 %	1906	2006			58	57.4
Probability of first temperature in fall <= 0°C, on or before (Date)
10 %	1906	2006			58	57.4
25 %	1906	2006			58	57.4
33 %	1906	2006			58	57.4
50 %	1906	2006			58	57.4
66 %	1906	2006			58	57.4
75 %	1906	2006			58	57.4
90 %	1906	2006			58	57.4
Probability of frost-free period equal to or less than indicated period (Days)
10 %	1906	2006			58	57.4
25 %	1906	2006			58	57.4
33 %	1906	2006			58	57.4
50 %	1906	2006			58	57.4
66 %	1906	2006			58	57.4
75 %	1906	2006			58	57.4
90 %	1906	2006			58	57.4

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Date modified:: 2024-10-01

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Canadian Climate Normals 1981-2010 Station Data

Temperature and Precipitation Graph for 1981 to 2010 Canadian Climate Normals
ATLIN

Legend

Page details

Canadian Climate Normals 1981-2010 Station Data

Temperature and Precipitation Graph for 1981 to 2010 Canadian Climate NormalsATLIN

Page details

Temperature and Precipitation Graph for 1981 to 2010 Canadian Climate Normals
ATLIN