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 A

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 A
YUKON TERRITORY

60°42'34.200" N

135°04'07.800" W

706.20 m

2101300

71964

YXY

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)	-15.2	-12.7	-6.3	1.0	7.3	12.3	14.3	12.6	7.2	0.5	-9.4	-12.5	-0.1	C
Standard Deviation	6.5	4.7	3.5	2.3	1.5	1.3	0.9	1.4	1.6	1.8	4.8	4.7	3.3	C
Daily Maximum (°C)	-11.0	-7.7	-0.7	6.6	13.5	19.1	20.6	18.5	12.1	4.2	-6.0	-8.5	5.1	C
Daily Minimum (°C)	-19.2	-17.6	-11.9	-4.6	1.0	5.6	8.0	6.7	2.1	-3.2	-12.9	-16.5	-5.2	C
Extreme Maximum (°C)	9.0	11.7	11.7	21.8	34.1	34.4	32.8	31.6	26.7	19.3	11.7	10.6
Date (yyyy/dd)	1977/ 26	1968/ 27	1979/ 22	2002/ 30	1983/ 30	1969/ 14	1951/ 09	1999/ 05	1942/ 03	2003/ 03	1970/ 02	2004/ 23
Extreme Minimum (°C)	-52.2	-51.2	-40.6	-29.4	-12.9	-2.8	-0.5	-4.4	-19.4	-31.1	-41.0	-47.8
Date (yyyy/dd)	1947/ 31	1968/ 02	1972/ 08	1986/ 10	2002/ 03	1971/ 03	1984/ 19	1948/ 25	1983/ 27	1982/ 28	2006/ 27	1942/ 19

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)	0.3	0.0	0.0	1.2	14.3	32.4	38.1	35.5	29.0	8.8	1.0	0.4	160.9	C
Snowfall (cm)	25.4	18.3	14.8	7.2	2.0	0.0	0.0	0.3	4.7	18.6	27.0	23.5	141.8	C
Precipitation (mm)	17.8	11.8	10.3	7.0	16.3	32.4	38.1	35.8	33.3	23.2	20.1	16.3	262.3	C
Average Snow Depth (cm)	22	27	23	8	0	0	0	0	0	2	10	15	9	C
Median Snow Depth (cm)	22	27	23	8	0	0	0	0	0	0	10	15	9	C
Snow Depth at Month-end (cm)	26	25	18	1	0	0	0	0	0	5	13	18	9	C
Extreme Daily Rainfall (mm)	3.4	0.8	0.8	4.4	12.6	44.9	23.2	30.7	24.6	18.3	9.4	4.2
Date (yyyy/dd)	1981/ 03	1984/ 04	1944/ 15	1983/ 30	2000/ 26	1985/ 27	1991/ 27	1948/ 01	1983/ 04	1970/ 02	1949/ 03	1981/ 18
Extreme Daily Snowfall (cm)	14.0	16.7	27.2	16.6	12.2	12.7	0.0	8.6	21.6	15.0	14.6	27.0
Date (yyyy/dd)	1968/ 03	1982/ 09	1967/ 08	2006/ 14	1942/ 04	1972/ 01	1942/ 01	1974/ 22	1956/ 27	1999/ 23	1978/ 23	1980/ 25
Extreme Daily Precipitation (mm)	9.5	10.4	10.4	15.8	12.6	44.9	23.2	30.7	25.2	23.6	11.4	18.7
Date (yyyy/dd)	1994/ 17	1952/ 28	1962/ 07	2006/ 14	2000/ 26	1985/ 27	1991/ 27	1948/ 01	1986/ 23	1970/ 02	1955/ 06	1980/ 25
Extreme Snow Depth (cm)	86	94	94	66	38	0	0	3	20	21	52	69
Date (yyyy/dd)	1972/ 30	1972/ 16	1972/ 01	1967/ 13	1972/ 01	1955/ 01	1955/ 01	1969/ 11	1956/ 28	1982/ 31	1978/ 25	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	26.3	22.9	13.2	2.2	0.04	0.0	0.0	0.0	0.29	5.8	23.2	24.8	118.7	C
> 0 °C	4.8	5.3	17.8	27.8	31.0	30.0	31.0	31.0	29.7	25.2	6.8	6.3	246.6	C
> 10 °C	0.0	0.04	0.09	5.9	24.4	29.8	31.0	30.3	22.4	4.0	0.08	0.04	148.0	C
> 20 °C	0.0	0.0	0.0	0.17	1.5	11.7	17.3	10.0	0.83	0.0	0.0	0.0	41.5	C
> 30 °C	0.0	0.0	0.0	0.0	0.04	0.42	0.21	0.25	0.0	0.0	0.0	0.0	0.92	C
> 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	C

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	0.13	0.22	0.57	4.2	18.2	28.9	30.9	29.8	20.2	9.4	0.56	0.92	144.0	C
<= 2 °C	31.0	28.1	31.0	28.7	20.0	4.4	0.33	3.3	14.8	26.4	29.8	30.7	248.4	C
<= 0 °C	30.9	28.0	30.4	25.8	12.8	1.1	0.08	1.2	9.8	21.6	29.4	30.1	221.3	C
< -2 °C	29.9	27.3	27.9	19.7	5.6	0.08	0.0	0.08	4.7	15.2	27.9	29.3	187.4	C
< -10 °C	23.3	21.7	15.0	3.8	0.13	0.0	0.0	0.0	0.08	4.0	17.0	21.6	106.4	C
< -20 °C	13.8	10.8	6.3	0.83	0.0	0.0	0.0	0.0	0.0	0.38	6.2	10.4	48.7	C
< - 30 °C	6.2	3.1	1.3	0.0	0.0	0.0	0.0	0.0	0.0	0.04	1.4	3.6	15.7	C

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	0.21	0.09	0.09	1.1	7.5	10.9	13.5	12.4	11.0	5.1	0.76	0.33	62.9	C
>= 5 mm	0.0	0.0	0.0	0.0	0.74	1.9	2.6	2.4	1.6	0.38	0.0	0.0	9.7	C
>= 10 mm	0.0	0.0	0.0	0.0	0.09	0.54	0.70	0.67	0.46	0.04	0.0	0.0	2.5	C
>= 25 mm	0.0	0.0	0.0	0.0	0.0	0.13	0.0	0.0	0.0	0.0	0.0	0.0	0.13	C

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	11.9	9.1	7.0	3.8	1.2	0.04	0.0	0.29	1.5	7.9	12.4	12.2	67.4	C
>= 5 cm	1.5	1.2	1.0	0.39	0.22	0.0	0.0	0.0	0.29	1.1	1.4	1.1	8.2	C
>= 10 cm	0.29	0.17	0.09	0.09	0.0	0.0	0.0	0.0	0.13	0.13	0.20	0.21	1.3	C
>= 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	C

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	11.2	8.3	6.4	4.4	8.0	10.9	13.5	12.5	11.9	11.5	11.5	11.2	121.2	C
>= 5 mm	0.79	0.30	0.39	0.30	1.0	1.9	2.6	2.4	1.9	1.0	0.80	0.58	14.0	C
>= 10 mm	0.0	0.0	0.0	0.04	0.17	0.54	0.70	0.67	0.63	0.17	0.08	0.08	3.1	C
>= 25 mm	0.0	0.0	0.0	0.0	0.0	0.13	0.0	0.0	0.04	0.0	0.0	0.0	0.17	C

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	31.0	28.2	29.2	14.4	0.26	0.0	0.0	0.08	0.96	8.5	28.3	30.3	171.1	C
>= 5 cm	31.0	28.1	29.0	11.2	0.04	0.0	0.0	0.0	0.38	3.6	23.3	29.2	155.8	C
>= 10 cm	30.6	27.7	26.3	9.2	0.0	0.0	0.0	0.0	0.25	1.8	14.9	23.4	134.0	C
>= 20 cm	17.1	22.2	19.6	6.5	0.0	0.0	0.0	0.0	0.04	0.04	2.0	9.7	77.1	C

Wind

1981 to 2010 Canadian Climate Normals station data
Wind
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
Speed (km/h)	13.4	13.7	13.2	12.8	12.6	11.6	10.8	11.3	13.2	14.2	13.9	14.6	12.9	A
Most Frequent Direction	S	S	S	S	S	S	S	S	S	S	S	S	S	A
Maximum Hourly Speed (km/h)	72	68	64	60	64	56	63	52	72	63	68	72
Date (yyyy/dd)	1962/ 09	1957/ 15	1953/ 14	1966/ 09	1965/ 06	1965/ 16	1959/ 30	1998/ 29	1967/ 17	1961/ 28	1962/ 18	1954/ 17
Direction of Maximum Hourly Speed	SE	S	S	N	S	SE	E	S	S	SE	SE	S
Maximum Gust Speed (km/h)	100	106	93	89	85	90	91	84	101	97	106	97
Date (yyyy/dd)	1965/ 17	1964/ 19	1965/ 10	1965/ 16	1965/ 02	1963/ 26	1982/ 07	1960/ 11	1967/ 18	1958/ 01	1962/ 18	1960/ 14
Direction of Maximum Gust	S	S	SW	N	S	W	SE	SE	S	S	SE	SE
Days with Winds >= 52 km/h	1.5	1.2	0.5	0.4	0.1	0.1	0.1	0.2	0.7	0.8	1.1	1.2	7.6	C
Days with Winds >= 63 km/h	0.2	0.3	0.1	0.1	0.0	0.0	0.0	0.1	0.1	0.1	0.1	0.1	1.0	C

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	0.4	2.5	3.2	3.2	0	0	0	0	9.3	C
Above 15 °C	0	0	0	0	1.2	11.7	21.9	14.6	0.5	0	0	0	49.8	C
Above 10 °C	0	0	0	0.5	13.6	80.7	135.1	91.1	11.7	0.9	0	0	333.5	C
Above 5 °C	0	0.1	0	10.5	83.8	220.2	289.4	235.6	83.1	13.3	0.1	0.2	936.4	C
Above 0 °C	1.6	2.7	10.8	71.5	226.3	370.2	444.4	389.9	216.9	73.1	4.9	4.6	1816.9	C
Below 0 °C	471.1	359.2	206.5	40.4	0.9	0	0	0	2.4	57.4	288.2	392.1	1817.9	C
Below 5 °C	624.5	497.7	350.7	129.3	13.4	0	0	0.7	18.5	152.6	433.4	542.6	2763.5	C
Below 10 °C	779.5	638.7	505.7	269.4	98.2	10.5	0.6	11.2	97.1	295.2	583.3	697.4	3986.7	C
Below 15 °C	934.5	779.7	660.7	418.9	240.8	91.4	42.5	89.6	235.9	449.3	733.3	852.4	5,529	C
Below 18 °C	1027.5	864.4	753.7	508.9	332.9	172.3	116.7	171.3	325.4	542.3	823.3	945.4	6584.2	C

Evaporation

1981 to 2010 Canadian Climate Normals station data
Evaporation
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
Lake Evaporation (mm)					3.6	4.3	3.8	3.1	1.7

Bright Sunshine

1981 to 2010 Canadian Climate Normals station data
Bright Sunshine
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
Total Hours	43.8	105.5	163.2	238.5	251.1	266.7	247.6	226.5	132.7	84.9	39.8	26.8	1827.1	D
Days with measurable	18.1	23.8	28.7	29.1	30.4	29.3	29.9	29.6	26.7	23.8	16.1	14.8	300.3	D
% of possible daylight hours	21.4	41.6	44.8	54.4	46.8	46.9	43.8	46.4	34.1	27.0	17.8	14.9	36.7	D
Extreme Daily	6.7	9.8	11.8	14.7	17.4	17.9	17.3	15.7	12.8	10.0	7.4	4.7
Date (yyyy/dd)	1989/ 31	1977/ 25	1968/ 31	1959/ 30	1975/ 31	1975/ 29	1974/ 08	1978/ 01	1974/ 02	2000/ 03	1979/ 01	1976/ 16

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	9.5	11.1	11.7	21.6	33.6	33.3	33.6	31.9	25.2	19.0	11.1	9.2
Date (yyyy/dd)	2009/ 18	1968/ 27	1979/ 22	2002/ 30	1983/ 30	1969/ 14	2009/ 29	1994/ 08	1974/ 01	2003/ 03	1970/ 02	2004/ 23
Days with Humidex >= 30	0.0	0.0	0.0	0.0	0.0	0.3	0.2	0.3	0.0	0.0	0.0	0.0	0.8	A
Days with Humidex >= 35	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 Humidex >= 40	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

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)	-61	-62	-47	-35	-19	-6	0	-6	-21	-37	-51	-59
Date (yyyy/dd)	1965/ 04	1968/ 03	1955/ 03	1963/ 03	1964/ 09	1955/ 03	1953/ 01	1969/ 11	1983/ 27	1982/ 28	2006/ 27	1964/ 15
Days with Wind Chill < -20	19.1	15.3	10.5	1.4	0.0	0.0	0.0	0.0	0.0	1.1	10.2	17.3	74.8	A
Days with Wind Chill < -30	10.7	6.9	3.4	0.1	0.0	0.0	0.0	0.0	0.0	0.1	3.4	7.9	32.5	A
Days with Wind Chill < -40	4.7	2.0	0.4	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.7	1.8	9.7	A

Humidity

1981 to 2010 Canadian Climate Normals station data
Humidity
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
Average Vapour Pressure (kPa)	0.2	0.2	0.3	0.4	0.5	0.8	1	0.9	0.7	0.5	0.3	0.2	0.5	A
Average Relative Humidity - 0600LST (%)	73.9	73.2	71.2	71.3	70.2	70.7	76.7	80.5	80.4	79.5	78	75.2	75.1	A
Average Relative Humidity - 1500LST (%)	72.2	64.5	51.8	42.1	38.2	39.9	46	47.9	54.5	64.2	75.2	74.7	55.9	A

Pressure

1981 to 2010 Canadian Climate Normals station data
Pressure
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
Average Station Pressure (kPa)	92.6	92.7	92.6	92.7	92.9	93	93.2	93.1	92.9	92.5	92.4	92.5	92.8	A
Average Sea Level Pressure (kPa)	101.4	101.5	101.2	101.2	101.3	101.3	101.5	101.5	101.3	101	101	101.2	101.3	A

Radiation

1981 to 2010 Canadian Climate Normals station data
Radiation
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
Extreme Global - RF1 (MJ/m2)	4	9	17	24	30	32	30	26	18	11	5	2
Date (yyyy/dd)	1975/ 31	1972/ 29	1984/ 31	1976/ 29	1977/ 27	1972/ 27	1974/ 03	1976/ 01	1974/ 02	1994/ 01	1970/ 04	1973/ 01
Extreme Net - RF4 (MJ/m2)	1	2	6	13	15	17	16	14	8	3	1	1
Date (yyyy/dd)	1976/ 04	1992/ 28	1992/ 25	1974/ 24	1986/ 06	1985/ 29	1975/ 06	1994/ 01	1987/ 01	1988/ 01	1975/ 26	1975/ 13

Visibility (hours with)

1981 to 2010 Canadian Climate Normals station data
Visibility (hours with)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
< 1 km	25.5	4.4	0.7	0.9	0	0.6	0.4	0.7	2.7	4.5	7.1	9	56.6	C
1 to 9 km	95.9	61	49	16.8	7.6	8	11.3	19.8	21.5	67.6	107.5	79.6	545.6	C
> 9 km	622.6	612.3	694.2	702.3	736.4	711.4	732.3	723.5	695.8	671.9	605.4	655.4	8163.5	C

Cloud Amount (hours with)

1981 to 2010 Canadian Climate Normals station data
Cloud Amount (hours with)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year	Code
0 to 2 tenths	149.7	158.6	198.2	180.9	130.2	101.4	95.9	135.4	114.3	98.5	103	131.7	1597.8	C
3 to 7 tenths	156.2	161.5	171.8	211.7	232	245.7	245.5	199.2	175.5	155.8	133.4	159.9	2,248	C
8 to 10 tenths	438.2	357.7	374	327.5	381.8	372.9	402.6	409.4	430.3	489.8	483.7	452.4	4,920	C

Frost-Free

1981 to 2010 Canadian Climate Normals station data
Frost-Free
	Date/Days	Code
Average Date of Last Spring Frost	Jun 05	C
Average Date of First Fall Frost	Aug 25	C
Average Length of Frost-Free Period	80 Days	C

1981 to 2010 Canadian Climate Normals station data
Frost-Free
Probability of last temperature in spring of 0 °C or lower on or after indicated dates	10%	25%	33%	50%	66%	75%	90%
Date	Jun 21	Jun 15	Jun 12	Jun 04	Jun 02	May 29	May 25
Probability of first temperature in fall of 0 °C or lower on or before indicated dates	10%	25%	33%	50%	66%	75%	90%
Date	Aug 10	Aug 22	Aug 24	Aug 30	Sep 03	Sep 04	Sep 14
Probability of frost-free period equal to or less than indicated period (Days)	10%	25%	33%	50%	66%	75%	90%
Days	60	66	73	85	91	95	102

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

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 A

Province/Territory

Latitude (dd mm):

60 42 N

Country

CAN

Longitude (ddd mm):

135 04 W

Time Zone

PST

Latitude (decimal degrees):

60.71 N

Climate ID:

2101300

Longitude (decimal degrees):

135.07 W

WMO ID:

71964

Elevation (m):

706.2

TC ID:

YXY

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	3	8675	99.7
Standard Deviation	1981	2007	25	3	8675	99.7
Daily Maximum (°C)	1981	2007	25	3	8675	99.7
Daily Minimum (°C)	1981	2007	25	3	8675	99.7
Extreme Maximum (°C)	1942	2007			22837	99.9
Extreme Minimum (°C)	1942	2007			22836	99.9

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	3	8644	99.3
Snowfall (cm)	1981	2007	25	3	8644	99.3
Precipitation (mm)	1981	2007	25	3	8644	99.3
Average Snow Depth (cm)	1981	2007	24	3	8491	97.5
Median Snow Depth (cm)	1981	2007	24	3	8491	97.5
Snow Depth at Month-end (cm)	1981	2007	25	3	284	99.3
Extreme Daily Rainfall (mm)	1942	2007			22835	99.9
Extreme Daily Snowfall (cm)	1942	2007			22836	99.9
Extreme Daily Precipitation (mm)	1942	2007			22836	99.9
Extreme Snow Depth (cm)	1955	2007			18132	99.6

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	3	8675	99.7
> 0 °C	1981	2007	25	3	8675	99.7
> 10 °C	1981	2007	25	3	8675	99.7
> 20 °C	1981	2007	25	3	8675	99.7
> 30 °C	1981	2007	25	3	8675	99.7
> 35 °C	1981	2007	25	3	8675	99.7

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	25	3	8675	99.7
<= 2 °C	1981	2007	25	3	8675	99.7
<= 0 °C	1981	2007	25	3	8675	99.7
< -2 °C	1981	2007	25	3	8675	99.7
< -10 °C	1981	2007	25	3	8675	99.7
< -20 °C	1981	2007	25	3	8675	99.7
< - 30 °C	1981	2007	25	3	8675	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	25	3	8644	99.3
>= 5 mm	1981	2007	25	3	8644	99.3
>= 10 mm	1981	2007	25	3	8644	99.3
>= 25 mm	1981	2007	25	3	8644	99.3

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	3	8675	99.7
>= 5 cm	1981	2007	25	3	8675	99.7
>= 10 cm	1981	2007	25	3	8675	99.7
>= 25 cm	1981	2007	25	3	8675	99.7

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	3	8644	99.3
>= 5 mm	1981	2007	25	3	8644	99.3
>= 10 mm	1981	2007	25	3	8644	99.3
>= 25 mm	1981	2007	25	3	8644	99.3

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	24	3	8343	95.9
>= 5 cm	1981	2007	24	3	8343	95.9
>= 10 cm	1981	2007	24	3	8343	95.9
>= 20 cm	1981	2007	24	3	8343	95.9

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
Speed (km/h)	1981	2010	30	0	262834	100
Most Frequent Direction	1981	2010	30	0	262833	100
Maximum Hourly Speed (km/h)	1953	2010			508281	100
Maximum Gust Speed (km/h)	1956	2003			16352	99.3
Days with Winds >= 52 km/h	1981	2003	21	3	7426	99.6
Days with Winds >= 63 km/h	1981	2003	21	3	7426	99.6

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	3	8675	99.7
Above 18 °C	1981	2007	25	3	8675	99.7
Above 15 °C	1981	2007	25	3	8675	99.7
Above 10 °C	1981	2007	25	3	8675	99.7
Above 5 °C	1981	2007	25	3	8675	99.7
Above 0 °C	1981	2007	25	3	8675	99.7
Below 0 °C	1981	2007	25	3	8675	99.7
Below 5 °C	1981	2007	25	3	8675	99.7
Below 10 °C	1981	2007	25	3	8675	99.7
Below 15 °C	1981	2007	25	3	8675	99.7
Below 18 °C	1981	2007	25	3	8675	99.7

Evaporation

1981 to 2010 Canadian Climate Normals Element Metadata
Evaporation
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
Lake Evaporation (mm)	1981	1996	15	2	1615	72.1

Bright Sunshine

1981 to 2010 Canadian Climate Normals Element Metadata
Bright Sunshine
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
Total Hours	1981	2001	19	4	154176	93
Days with measurable	1981	2001	19	4	154176	93
% of possible daylight hours	1981	2001	19	4	154176	93
Extreme Daily	1957	2002			370138	98.8

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	1953	2010			504813	99.3
Days with Humidex >= 30	1981	2010	30	0	262606	99.9
Days with Humidex >= 35	1981	2010	30	0	262606	99.9
Days with Humidex >= 40	1981	2010	30	0	262606	99.9

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)	1953	2010			508273	100
Days with Wind Chill < -20	1981	2010	30	0	262826	100
Days with Wind Chill < -30	1981	2010	30	0	262826	100
Days with Wind Chill < -40	1981	2010	30	0	262826	100

Humidity

1981 to 2010 Canadian Climate Normals Element Metadata
Humidity
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
Average Vapour Pressure (kPa)	1981	2010	30	0	262606	99.9
Average Relative Humidity - 0600LST (%)	1981	2010	30	0	10933	99.8
Average Relative Humidity - 1500LST (%)	1981	2010	30	0	10948	99.9

Pressure

1981 to 2010 Canadian Climate Normals Element Metadata
Pressure
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
Average Station Pressure (kPa)	1981	2010	30	0	262810	99.9
Average Sea Level Pressure (kPa)	1981	2010	30	0	262795	99.9

Radiation

1981 to 2010 Canadian Climate Normals Element Metadata
Radiation
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
Extreme Global - RF1 (MJ/m2)	1970	1997			219123	96.1
Extreme Net - RF4 (MJ/m2)	1970	1997			197740	93.4

Visibility (hours with)

1981 to 2010 Canadian Climate Normals Element Metadata
Visibility (hours with)
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
< 1 km	1981	2010	27	5	223536	85
1 to 9 km	1981	2010	27	5	223536	85
> 9 km	1981	2010	27	5	223536	85

Cloud Amount (hours with)

1981 to 2010 Canadian Climate Normals Element Metadata
Cloud Amount (hours with)
	Begin Year	End Year	Total Number of Years	Missing Years	Total Count of Observations	% of Possible Observations
0 to 2 tenths	1981	2010	27	5	222072	84.5
3 to 7 tenths	1981	2010	27	5	222072	84.5
8 to 10 tenths	1981	2010	27	5	222072	84.5

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	21	4	21	80.8
Average Date of First Fall Frost	1981	2006	21	4	21	80.8
Average Length of Frost-Free Period	1981	2006	21	4	21	80.8
Probability of last temperature in spring <= 0°C, on or after (Date)
10 %	1943	2006	63	5	58	90.6
25 %	1943	2006	63	5	58	90.6
33 %	1943	2006	63	5	58	90.6
50 %	1943	2006	63	5	58	90.6
66 %	1943	2006	63	5	58	90.6
75 %	1943	2006	63	5	58	90.6
90 %	1943	2006	63	5	58	90.6
Probability of first temperature in fall <= 0°C, on or before (Date)
10 %	1943	2006	63	5	58	90.6
25 %	1943	2006	63	5	58	90.6
33 %	1943	2006	63	5	58	90.6
50 %	1943	2006	63	5	58	90.6
66 %	1943	2006	63	5	58	90.6
75 %	1943	2006	63	5	58	90.6
90 %	1943	2006	63	5	58	90.6
Probability of frost-free period equal to or less than indicated period (Days)
10 %	1943	2006	63	5	58	90.6
25 %	1943	2006	63	5	58	90.6
33 %	1943	2006	63	5	58	90.6
50 %	1943	2006	63	5	58	90.6
66 %	1943	2006	63	5	58	90.6
75 %	1943	2006	63	5	58	90.6
90 %	1943	2006	63	5	58	90.6

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Date modified:: 2024-03-27

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Canadian Climate Normals 1981-2010 Station Data

Temperature and Precipitation Graph for 1981 to 2010 Canadian Climate Normals
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Canadian Climate Normals 1981-2010 Station Data

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

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Temperature and Precipitation Graph for 1981 to 2010 Canadian Climate Normals
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