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
WHITEHORSE RIVERDALE

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.

WHITEHORSE RIVERDALE
YUKON TERRITORY

60°42'36.000" N

135°01'38.000" W

640.10 m

2101400

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)	-16.2	-11.8	-6.0	1.8	8.0	13.1	15.1	13.1	7.5	0.5	-9.8	-13.2	0.2	D
Standard Deviation	7.1	4.5	3.4	2.2	1.5	1.3	0.9	1.5	1.9	2.1	4.9	4.9	3.3	D
Daily Maximum (°C)	-12.1	-6.6	0.3	8.5	15.3	20.4	21.6	19.5	12.8	4.3	-6.2	-9.1	5.7	D
Daily Minimum (°C)	-20.4	-17.0	-12.3	-4.9	0.7	5.9	8.5	6.6	2.1	-3.4	-13.4	-17.3	-5.4	D
Extreme Maximum (°C)	8.3	12.8	13.5	23.5	34.5	35.6	33.3	31.7	26.7	20.0	12.2	9.5
Date (yyyy/dd)	1977/ 26	1968/ 27	1994/ 29	2002/ 30	1983/ 30	1969/ 14	1976/ 31	1977/ 14+	1974/ 01	2003/ 01+	1970/ 02	2004/ 22
Extreme Minimum (°C)	-48.3	-51.2	-42.8	-31.7	-15.0	-4.4	-1.7	-5.6	-17.5	-29.5	-41.7	-47.8
Date (yyyy/dd)	1966/ 29	1968/ 03	1972/ 08	1963/ 03	2002/ 03	1971/ 03	1963/ 19+	1960/ 29	1983/ 27	1982/ 28	1961/ 30	1971/ 12

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)	0.2	0.1	0.1	2.2	15.1	33.4	39.6	36.2	29.7	9.9	0.8	0.1	167.2	D
Snowfall (cm)	19.0	13.5	11.9	4.6	1.2	0.0	0.0	0.4	5.6	16.3	21.9	20.2	114.6	D
Precipitation (mm)	19.2	13.6	11.7	6.8	16.3	33.4	39.6	36.5	35.3	26.1	22.7	20.3	281.6	D
Extreme Daily Rainfall (mm)	2.8	0.8	1.0	4.2	12.8	50.6	25.6	23.9	25.4	15.0	10.0	1.8
Date (yyyy/dd)	1981/ 02	1984/ 04	1986/ 20	1988/ 29	1986/ 20	1985/ 26	1991/ 27	1974/ 23	1977/ 22	1989/ 02	1979/ 13	1975/ 19
Extreme Daily Snowfall (cm)	15.2	11.0	16.4	18.5	9.2	0.0	0.0	4.8	19.8	13.0	19.5	19.3
Date (yyyy/dd)	2005/ 18	1982/ 09	1982/ 25	1976/ 14	1999/ 03	1970/ 01+	1960/ 01+	1984/ 27	1974/ 30	1999/ 23	1978/ 22	1996/ 19
Extreme Daily Precipitation (mm)	15.2	11.0	16.4	18.5	12.8	50.6	25.6	23.9	26.6	15.5	19.5	19.3
Date (yyyy/dd)	2005/ 18	1982/ 09	1982/ 25	1976/ 14	1986/ 20	1985/ 26	1991/ 27	1974/ 23	1986/ 23	1976/ 08	1978/ 22	1996/ 19
Extreme Snow Depth (cm)	50	59	45	41	0	0	0	0	20	21	30	51
Date (yyyy/dd)	1991/ 31	2007/ 19	1991/ 04	1982/ 01	1981/ 01+	1981/ 01+	1981/ 01+	1981/ 01+	1986/ 29+	1982/ 31	1991/ 30	1980/ 29

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	26.5	22.0	12.6	1.6	0.04	0.0	0.0	0.0	0.44	6.4	23.8	26.0	119.3	D
> 0 °C	4.5	6.3	18.4	28.4	31.0	30.0	31.0	31.0	29.6	24.6	6.2	5.0	245.9	D
> 10 °C	0.0	0.04	0.17	10.3	27.7	29.8	31.0	30.0	22.9	4.4	0.04	0.0	156.3	D
> 20 °C	0.0	0.0	0.0	0.35	4.1	14.2	19.8	11.9	1.3	0.0	0.0	0.0	51.6	D
> 30 °C	0.0	0.0	0.0	0.0	0.04	0.70	0.37	0.35	0.0	0.0	0.0	0.0	1.5	D
> 35 °C	0.0	0.0	0.0	0.0	0.0	0.09	0.0	0.0	0.0	0.0	0.0	0.0	0.09	D

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	0.27	0.33	0.61	4.1	16.3	28.4	30.9	28.3	17.4	9.1	0.60	0.80	137.1	D
<= 2 °C	30.8	28.1	30.9	28.9	20.5	4.2	0.33	3.8	15.2	25.8	30.0	30.7	249.1	D
<= 0 °C	30.6	27.9	30.4	25.9	14.7	1.6	0.05	1.6	11.5	21.8	29.4	30.2	225.7	D
< -2 °C	29.7	27.0	27.3	19.9	7.9	0.23	0.0	0.15	5.6	15.8	27.9	29.5	191.0	D
< -10 °C	24.0	21.1	15.8	3.7	0.13	0.0	0.0	0.0	0.11	4.1	17.2	22.8	109.1	D
< -20 °C	14.3	9.7	6.2	0.70	0.0	0.0	0.0	0.0	0.0	0.36	6.4	10.8	48.5	D
< - 30 °C	7.0	2.7	1.1	0.0	0.0	0.0	0.0	0.0	0.0	0.0	1.5	4.0	16.2	D

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	0.20	0.13	0.09	1.9	7.7	11.4	13.6	12.4	9.6	5.2	0.44	0.12	62.7	D
>= 5 mm	0.0	0.0	0.0	0.0	0.88	2.1	2.5	2.6	1.6	0.48	0.0	0.0	10.1	D
>= 10 mm	0.0	0.0	0.0	0.0	0.17	0.58	0.86	0.74	0.72	0.12	0.0	0.0	3.2	D
>= 25 mm	0.0	0.0	0.0	0.0	0.0	0.08	0.05	0.0	0.0	0.0	0.0	0.0	0.13	D

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	9.5	7.3	5.7	2.7	0.54	0.0	0.0	0.10	1.1	7.0	10.0	10.0	53.8	D
>= 5 cm	0.84	0.54	0.65	0.22	0.04	0.0	0.0	0.0	0.32	0.92	1.1	0.96	5.6	D
>= 10 cm	0.12	0.08	0.09	0.0	0.0	0.0	0.0	0.0	0.21	0.12	0.12	0.24	0.98	D
>= 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	D

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	9.7	7.3	5.7	4.5	8.0	11.4	13.6	12.4	10.1	11.2	10.3	10.1	114.3	D
>= 5 mm	0.84	0.54	0.61	0.22	0.96	2.1	2.5	2.6	2.0	1.6	1.1	0.96	16.0	D
>= 10 mm	0.12	0.08	0.09	0.0	0.21	0.58	0.86	0.79	0.94	0.28	0.12	0.24	4.3	D
>= 25 mm	0.0	0.0	0.0	0.0	0.0	0.08	0.05	0.0	0.06	0.0	0.0	0.0	0.19	D

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	D
Above 18 °C	0	0	0	0	0.3	4.1	5.3	2.6	0	0	0	0	12.3	D
Above 15 °C	0	0	0	0	1.9	18.2	33.5	15	0.9	0	0	0	69.5	D
Above 10 °C	0	0	0	0.4	20.4	102	158.9	102.4	17.2	1.3	0	0	402.5	D
Above 5 °C	0	0.2	0.2	12.5	103	245.6	313.4	247.4	93.5	16.9	0.1	0.2	1,033	D
Above 0 °C	1.7	3.6	14.5	86	249.1	395.6	468.4	401.7	226.9	76.7	4	3.2	1931.5	D
Below 0 °C	502.7	336.8	200.9	31.3	0.8	0	0	0	2.4	61.1	299.1	416.2	1851.4	D
Below 5 °C	656	474.7	341.7	107.9	9.7	0	0	0.8	18.9	156.3	445.1	568.2	2779.2	D
Below 10 °C	811	615.7	496.4	245.8	82.1	6.4	0.4	10.7	92.7	295.7	595.1	723	3,975	D
Below 15 °C	966	757	651.4	395.4	218.6	72.6	30.1	78.4	226.4	449.4	745.1	878	5468.2	D
Below 18 °C	1,059	841.7	744.4	485.4	310	148.5	94.9	158.9	315.5	542.4	835.1	971	6506.7	D

Frost-Free

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 29	Jun 23	Jun 21	Jun 16	Jun 11	Jun 07	Jun 04
Probability of first temperature in fall <= 0°C, on or before (Date)	10%	25%	33%	50%	66%	75%	90%
Date	Aug 03	Aug 09	Aug 19	Aug 27	Sep 01	Sep 02	Sep 07
Probability of frost-free period equal to or less than indicated period (Days)	10%	25%	33%	50%	66%	75%	90%
Days	47	58	60	65	72	78	93

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.

WHITEHORSE RIVERDALE

Province/Territory

Latitude (dd mm):

60 42 N

Country

CAN

Longitude (ddd mm):

135 01 W

Time Zone

PST

Latitude (decimal degrees):

60.71 N

Climate ID:

2101400

Longitude (decimal degrees):

135.03 W

WMO ID:

Elevation (m):

640.08

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	25	6	8284	95.3
Standard Deviation	1981	2007	25	6	8284	95.3
Daily Maximum (°C)	1981	2007	25	6	8291	95.4
Daily Minimum (°C)	1981	2007	25	6	8303	95.5
Extreme Maximum (°C)	1959	2007			16350	98.4
Extreme Minimum (°C)	1959	2007			16420	98.8

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	25	6	8431	97.1
Snowfall (cm)	1981	2007	25	6	8431	97.1
Precipitation (mm)	1981	2007	25	6	8431	97.1
Extreme Daily Rainfall (mm)	1964	2007			11517	98.7
Extreme Daily Snowfall (cm)	1960	2007			11647	99.6
Extreme Daily Precipitation (mm)	1969	2007			11366	98.7
Extreme Snow Depth (cm)	1980	2007			5048	59.4

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	25	6	7969	91.7
> 0 °C	1981	2007	25	6	7969	91.7
> 10 °C	1981	2007	25	6	7969	91.7
> 20 °C	1981	2007	25	6	7969	91.7
> 30 °C	1981	2007	25	6	7969	91.7
> 35 °C	1981	2007	25	6	7969	91.7

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	26	4	8339	96.2
<= 2 °C	1981	2007	26	4	8339	96.2
<= 0 °C	1981	2007	26	4	8339	96.2
< -2 °C	1981	2007	26	4	8339	96.2
< -10 °C	1981	2007	26	4	8339	96.2
< -20 °C	1981	2007	26	4	8339	96.2
< - 30 °C	1981	2007	26	4	8339	96.2

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	25	6	8431	97.1
>= 5 mm	1981	2007	25	6	8431	97.1
>= 10 mm	1981	2007	25	6	8431	97.1
>= 25 mm	1981	2007	25	6	8431	97.1

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	25	4	8615	99.3
>= 5 cm	1981	2007	25	4	8615	99.3
>= 10 cm	1981	2007	25	4	8615	99.3
>= 25 cm	1981	2007	25	4	8615	99.3

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	25	6	8431	97.1
>= 5 mm	1981	2007	25	6	8431	97.1
>= 10 mm	1981	2007	25	6	8431	97.1
>= 25 mm	1981	2007	25	6	8431	97.1

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	25	6	7877	90.6
Above 18 °C	1981	2007	25	6	7877	90.6
Above 15 °C	1981	2007	25	6	7877	90.6
Above 10 °C	1981	2007	25	6	7877	90.6
Above 5 °C	1981	2007	25	6	7877	90.6
Above 0 °C	1981	2007	25	6	7877	90.6
Below 0 °C	1981	2007	25	6	7877	90.6
Below 5 °C	1981	2007	25	6	7877	90.6
Below 10 °C	1981	2007	25	6	7877	90.6
Below 15 °C	1981	2007	25	6	7877	90.6
Below 18 °C	1981	2007	25	6	7877	90.6

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	2004	10	8	10	41.7
Average Date of First Fall Frost	1981	2004	10	8	10	41.7
Average Length of Frost-Free Period	1981	2004	10	8	10	41.7
Probability of last temperature in spring <= 0°C, on or after (Date)
10 %	1968	2004			18	48.6
25 %	1968	2004			18	48.6
33 %	1968	2004			18	48.6
50 %	1968	2004			18	48.6
66 %	1968	2004			18	48.6
75 %	1968	2004			18	48.6
90 %	1968	2004			18	48.6
Probability of first temperature in fall <= 0°C, on or before (Date)
10 %	1968	2004			18	48.6
25 %	1968	2004			18	48.6
33 %	1968	2004			18	48.6
50 %	1968	2004			18	48.6
66 %	1968	2004			18	48.6
75 %	1968	2004			18	48.6
90 %	1968	2004			18	48.6
Probability of frost-free period equal to or less than indicated period (Days)
10 %	1968	2004			18	48.6
25 %	1968	2004			18	48.6
33 %	1968	2004			18	48.6
50 %	1968	2004			18	48.6
66 %	1968	2004			18	48.6
75 %	1968	2004			18	48.6
90 %	1968	2004			18	48.6

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Canadian Climate Normals 1981-2010 Station Data

Temperature and Precipitation Graph for 1981 to 2010 Canadian Climate Normals
WHITEHORSE RIVERDALE

Legend

Page details

Canadian Climate Normals 1981-2010 Station Data

Temperature and Precipitation Graph for 1981 to 2010 Canadian Climate NormalsWHITEHORSE RIVERDALE

Page details

Temperature and Precipitation Graph for 1981 to 2010 Canadian Climate Normals
WHITEHORSE RIVERDALE