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
NORMAN WELLS 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.

NORMAN WELLS A *
NORTHWEST TERRITORIES

65°16'57.000" N

126°48'01.000" W

72.50 m

2202800

* 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)	-26.1	-24.0	-18.4	-5.1	6.4	15.0	17.1	13.8	6.6	-4.7	-18.7	-23.4	-5.1	A
Standard Deviation	4.5	3.9	3.5	3.1	2.3	1.0	1.5	1.6	1.9	2.4	4.0	3.6	1.1	A
Daily Maximum (°C)	-22.2	-19.5	-12.5	1.0	12.1	20.7	22.5	19.0	11.0	-1.6	-15.2	-19.6	-0.4	A
Daily Minimum (°C)	-29.9	-28.4	-24.2	-11.1	0.6	9.3	11.5	8.4	2.0	-7.7	-22.2	-27.1	-9.9	A
Extreme Maximum (°C)	12.4	7.9	11.1	20.0	31.3	33.5	35.0	32.4	27.1	21.0	13.3	5.7
Date (yyyy/dd)	2009/ 17	1990/ 27	1949/ 24	1976/ 28	2010/ 29	1999/ 17	1989/ 14	1989/ 02	1995/ 23	2003/ 02	1970/ 01	1985/ 25
Extreme Minimum (°C)	-52.2	-54.4	-46.1	-37.2	-17.8	-2.8	-1.1	-6.1	-15.7	-31.7	-42.8	-47.8
Date (yyyy/dd)	1952/ 19	1947/ 04	1952/ 04	1944/ 01	1974/ 02	1957/ 14	1952/ 27	1947/ 24	1983/ 28	1965/ 30	1951/ 30	1971/ 14

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	0.0	0.1	1.2	13.3	42.4	41.8	41.1	26.7	4.6	0.0	0.2	171.7	A
Snowfall (cm)	21.1	19.9	14.4	12.8	6.4	0.4	0.0	0.7	6.9	27.3	26.0	25.9	161.5	A
Precipitation (mm)	15.6	14.9	10.7	11.1	19.0	42.7	41.8	41.8	33.1	26.7	18.7	18.2	294.4	A
Average Snow Depth (cm)	27	30	30	18	1	0	0	0	0	5	14	22	12	A
Median Snow Depth (cm)	27	30	31	19	0	0	0	0	0	4	13	21	12	A
Snow Depth at Month-end (cm)	28	30	27	5	0	0	0	0	1	10	18	25	12	A
Extreme Daily Rainfall (mm)	3.0	0.9	5.6	12.4	19.6	45.1	49.3	48.5	42.8	21.4	5.8	2.0
Date (yyyy/dd)	1991/ 25	1982/ 05	1965/ 10	1953/ 21	1984/ 29	1981/ 23	1967/ 19	1958/ 16	1988/ 06	1987/ 03	1954/ 02	1985/ 24
Extreme Daily Snowfall (cm)	23.1	27.0	13.0	28.4	20.6	15.0	2.0	7.6	16.8	18.8	16.8	17.0
Date (yyyy/dd)	1991/ 25	2006/ 13	1995/ 01	1972/ 29	1956/ 10	1965/ 01	1974/ 01	1984/ 27	1959/ 05	1981/ 01	2007/ 16	1960/ 22
Extreme Daily Precipitation (mm)	24.6	20.6	9.6	26.7	20.6	45.1	49.3	48.5	50.8	21.8	16.5	17.0
Date (yyyy/dd)	1991/ 25	2006/ 13	1996/ 02	1972/ 29	1956/ 10	1981/ 23	1967/ 19	1958/ 16	1988/ 06	1987/ 03	1958/ 28	1960/ 22
Extreme Snow Depth (cm)	137	152	165	163	102	8	0	7	14	58	81	106
Date (yyyy/dd)	1957/ 31	1957/ 09	1962/ 23	1957/ 05	1957/ 02	1965/ 01	1952/ 30	1984/ 28	1992/ 30	1965/ 30	1956/ 30	1956/ 31

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	30.5	27.9	29.0	14.1	1.1	0.0	0.0	0.0	0.76	18.3	29.5	30.8	181.9	A
> 0 °C	0.52	0.30	2.0	15.9	29.9	30.0	31.0	31.0	29.2	12.7	0.50	0.23	183.4	A
> 10 °C	0.10	0.0	0.0	3.5	18.8	29.4	30.9	29.5	16.9	0.90	0.0	0.0	129.9	A
> 20 °C	0.0	0.0	0.0	0.0	3.8	16.7	22.1	13.2	1.7	0.07	0.0	0.0	57.7	A
> 30 °C	0.0	0.0	0.0	0.0	0.03	0.72	1.1	0.20	0.0	0.0	0.0	0.0	2.1	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	0.0	0.0	0.0	1.8	17.1	29.9	31.0	30.4	21.0	2.2	0.0	0.0	133.3	A
<= 2 °C	31.0	28.2	31.0	29.5	20.4	0.79	0.03	2.0	15.2	30.6	30.0	31.0	249.6	A
<= 0 °C	31.0	28.2	31.0	28.2	13.9	0.10	0.0	0.63	9.0	28.8	30.0	31.0	231.9	A
< -2 °C	31.0	28.2	30.9	26.0	8.2	0.0	0.0	0.03	3.6	25.2	29.9	31.0	214.0	A
< -10 °C	30.7	28.0	30.0	15.9	0.77	0.0	0.0	0.0	0.14	10.7	28.5	30.8	175.5	A
< -20 °C	26.5	23.3	22.4	4.6	0.0	0.0	0.0	0.0	0.0	1.2	18.1	25.0	120.9	A
< - 30 °C	15.5	11.9	7.0	0.27	0.0	0.0	0.0	0.0	0.0	0.0	5.0	11.3	51.0	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	0.17	0.10	0.10	0.80	5.0	10.2	11.8	11.6	10.2	2.7	0.13	0.20	53.0	A
>= 5 mm	0.0	0.0	0.0	0.07	0.87	2.8	2.7	3.0	1.5	0.13	0.0	0.0	11.1	A
>= 10 mm	0.0	0.0	0.0	0.0	0.33	1.2	1.1	0.87	0.43	0.07	0.0	0.0	4.0	A
>= 25 mm	0.0	0.0	0.0	0.0	0.0	0.23	0.03	0.07	0.03	0.0	0.0	0.0	0.36	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	11.5	10.1	10.4	6.9	2.9	0.17	0.0	0.20	3.4	13.3	13.6	13.0	85.4	A
>= 5 cm	0.87	0.90	0.50	0.60	0.30	0.0	0.0	0.07	0.33	1.4	1.2	1.1	7.2	A
>= 10 cm	0.17	0.20	0.10	0.13	0.10	0.0	0.0	0.0	0.03	0.27	0.07	0.23	1.3	A
>= 25 cm	0.0	0.03	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.03	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	10.9	9.4	9.9	7.2	6.9	10.3	11.8	11.7	12.4	13.9	12.6	12.5	129.4	A
>= 5 mm	0.47	0.57	0.17	0.50	1.2	2.8	2.7	3.0	1.9	1.2	0.63	0.47	15.7	A
>= 10 mm	0.07	0.10	0.0	0.10	0.40	1.2	1.1	0.90	0.53	0.33	0.03	0.0	4.8	A
>= 25 mm	0.0	0.0	0.0	0.0	0.0	0.23	0.03	0.07	0.03	0.0	0.0	0.0	0.36	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	31.0	28.2	31.0	26.4	4.6	0.0	0.0	0.17	1.3	21.0	30.0	31.0	204.7	A
>= 5 cm	31.0	28.2	30.5	22.1	1.8	0.0	0.0	0.10	0.53	12.8	27.8	30.6	185.5	A
>= 10 cm	29.2	27.5	26.6	17.1	1.0	0.0	0.0	0.0	0.20	5.4	18.8	26.6	152.4	A
>= 20 cm	18.8	18.9	18.1	10.8	0.10	0.0	0.0	0.0	0.0	0.57	6.9	14.7	88.9	A

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)	8.3	8.9	10.3	11.0	11.9	11.7	11.0	10.5	10.7	10.4	8.4	8.3	10.1	A
Most Frequent Direction	SE	SE	W	SE	SE	SE	SE	SE	SE	NW	NW	SE	SE	A
Maximum Hourly Speed (km/h)	80	74	66	68	59	65	61	80	70	63	67	72
Date (yyyy/dd)	1962/ 22	1986/ 19	1971/ 07	1965/ 12	1980/ 03	1979/ 11	1959/ 25	1962/ 31	1988/ 06	1978/ 31	1977/ 21	1963/ 12
Direction of Maximum Hourly Speed	W	NW	SE	W	NW	NW	NW	W	NW	NW	NW	E
Maximum Gust Speed (km/h)	113	106	114	97	85	83	100	117	94	93	101	105
Date (yyyy/dd)	1962/ 22	1986/ 19	1965/ 10	1965/ 12	1979/ 02	1979/ 11	1967/ 24	1962/ 31	1988/ 07	1990/ 27	1962/ 03	1963/ 12
Direction of Maximum Gust	W	NW	NW	W	SE	NW	W	W	NW	E	E	E
Days with Winds >= 52 km/h	0.6	0.5	0.3	0.2	0.1	0.2	0.2	0.2	0.1	0.2	0.3	0.5	3.3	A
Days with Winds >= 63 km/h	0.1	0.2	0.1	0.1	0.0	0.0	0.0	0.1	0.1	0.0	0.1	0.1	0.9	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	0.2	1	0	0	0	0	0	1.2	A
Above 18 °C	0	0	0	0	0.8	15.7	30.9	10.2	0	0	0	0	57.5	A
Above 15 °C	0	0	0	0	4	48.1	84.5	35.1	0.7	0	0	0	172.4	A
Above 10 °C	0	0	0	0.2	26.4	156.2	219.8	130.3	16.8	0.3	0	0	549.9	A
Above 5 °C	0	0	0	5.4	90.6	300	373.8	272.2	81.9	2.5	0	0	1126.3	A
Above 0 °C	0.3	0	0.1	31.7	207.8	449.9	528.8	426.2	203.7	18	0.2	0	1866.5	A
Below 0 °C	805.5	676.4	569.7	184.6	10.2	0	0	0	4.7	163.3	561.1	724.1	3699.5	A
Below 5 °C	960.3	817.6	724.6	308.3	48	0.2	0	1	32.8	302.8	711	879.1	4785.6	A
Below 10 °C	1115.3	958.7	879.6	453.1	138.8	6.3	1.1	14.1	117.8	455.5	861	1034.1	6035.3	A
Below 15 °C	1270.3	1099.9	1034.6	602.9	271.4	48.3	20.7	73.9	251.7	610.3	1,011	1189.1	7,484	A
Below 18 °C	1363.3	1184.6	1127.6	692.9	361.2	105.8	60.2	142	341	703.3	1,101	1282.1	8464.8	A

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)					3.9	4.5	4.1	2.7	1.4

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
Extreme Daily	6.1	9.3	12.0	15.4	18.3	18.3	17.8	16.5	13.5	9.4	7.6	5.3
Date (yyyy/dd)	1959/ 30	1969/ 28	1960/ 29	1966/ 30	1968/ 30	1973/ 28	1960/ 11	1974/ 01	1979/ 05	1960/ 05	1975/ 06	1971/ 13

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	11.8	6.3	9.4	20.0	29.1	36.2	37.2	36.0	27.2	19.8	12.2	4.8
Date (yyyy/dd)	1981/ 15	1990/ 27	1965/ 10	1976/ 28	2010/ 29	1955/ 23	1975/ 11	1989/ 02	1995/ 22	1989/ 07	1970/ 01	1985/ 25
Days with Humidex >= 30	0.0	0.0	0.0	0.0	0.0	0.9	2.2	1.2	0.0	0.0	0.0	0.0	4.3	A
Days with Humidex >= 35	0.0	0.0	0.0	0.0	0.0	0.0	0.2	0.0	0.0	0.0	0.0	0.0	0.3	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)	-62	-60	-58	-44	-25	-7	0	-10	-18	-40	-52	-62
Date (yyyy/dd)	1971/ 26	1968/ 05	1964/ 15	1964/ 04	2002/ 02	1996/ 05	1953/ 01	1984/ 27	1974/ 29	1965/ 30	1968/ 27	1970/ 10
Days with Wind Chill < -20	29.0	26.8	27.5	9.0	0.2	0.0	0.0	0.0	0.0	4.5	24.6	29.1	150.6	A
Days with Wind Chill < -30	22.7	19.6	16.1	2.0	0.0	0.0	0.0	0.0	0.0	0.4	11.5	20.7	92.9	A
Days with Wind Chill < -40	12.6	9.3	4.2	0.1	0.0	0.0	0.0	0.0	0.0	0.0	2.3	7.4	35.9	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)	0.1	0.1	0.1	0.3	0.6	0.9	1.2	1.1	0.7	0.4	0.1	0.1	0.5	A
Average Relative Humidity - 0600LST (%)	66.4	64.9	65.4	71.9	70.8	69.2	75.7	82.3	83.9	83.8	73.6	68.1	73	A
Average Relative Humidity - 1500LST (%)	65.6	61.4	54.6	52.8	47.1	46.3	50.9	56.7	62.9	76	72.8	67.9	59.6	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)	100.9	101.1	101	100.7	100.6	100.3	100.3	100.3	100.3	100.3	100.6	100.7	100.6	A
Average Sea Level Pressure (kPa)	101.9	102.1	102	101.7	101.5	101.2	101.2	101.2	101.2	101.3	101.6	101.7	101.5	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
Global - RF1 (MJ/m2)	15	73			664		577		251		27	6
Net - RF4 (MJ/m2)	-52	-30	-13		294		296		75		-39
Extreme Global - RF1 (MJ/m2)	2	7	16	23	31	32	31	24	17	8	4	1
Date (yyyy/dd)	1971/ 29	1979/ 28	1972/ 31	1979/ 30	1979/ 27	1979/ 16	1972/ 04	1979/ 01	1979/ 04	1974/ 04	1967/ 01	1968/ 02
Extreme Net - RF4 (MJ/m2)	1	1	2	12	14	15	15	11	7	3	1	1
Date (yyyy/dd)	1981/ 03	1984/ 12	1984/ 24	1973/ 30	1976/ 29	1978/ 25	1981/ 01	1979/ 06	1984/ 03	1983/ 02	1978/ 05	1982/ 28

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	10	8.7	1.9	1	1.6	0.3	0.7	4.7	8.1	19.7	4.9	5.7	67.4	C
1 to 9 km	110.3	86.9	61.4	51.9	26.2	14	23.8	24.5	44	115.1	102.3	108.1	768.5	C
> 9 km	623.7	581.9	680.8	667.1	716.2	705.7	719.5	714.9	667.9	609.1	612.8	630.2	7929.6	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	222	221.3	251.6	212.1	184.5	154.6	123.7	112.1	120.5	99.7	168.6	189.5	2060.2	C
3 to 7 tenths	159.6	147.2	161.5	166.1	194.2	207.5	211.2	184.7	150.1	119.6	128.4	149.5	1979.5	C
8 to 10 tenths	362.4	309	330.9	341.8	365.4	357.9	409.1	447.2	449.4	524.7	423	405	4725.8	C

Frost-Free

1981 to 2010 Canadian Climate Normals station data
Frost-Free
	Date/Days	Code
Average Date of Last Spring Frost	May 23	A
Average Date of First Fall Frost	Sept 07	A
Average Length of Frost-Free Period	106 Days	A

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 09	Jun 01	May 29	May 27	May 22	May 21	May 13
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 16	Aug 27	Aug 29	Sep 04	Sep 09	Sep 14	Sep 23
Probability of frost-free period equal to or less than indicated period (Days)	10%	25%	33%	50%	66%	75%	90%
Days	64	86	93	101	107	111	127

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.

NORMAN WELLS A

Province/Territory

Latitude (dd mm):

65 17 N

Country

CAN

Longitude (ddd mm):

126 48 W

Time Zone

MST

Latitude (decimal degrees):

65.28 N

Climate ID:

2202800

Longitude (decimal degrees):

126.8 W

WMO ID:

Elevation (m):

72.542

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	2010	30	0	10953	100
Standard Deviation	1981	2010	30	0	10953	100
Daily Maximum (°C)	1981	2010	30	0	10953	100
Daily Minimum (°C)	1981	2010	30	0	10953	100
Extreme Maximum (°C)	1943	2010			24657	99.8
Extreme Minimum (°C)	1943	2010			24684	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	2010	30	0	10957	100
Snowfall (cm)	1981	2010	30	0	10957	100
Precipitation (mm)	1981	2010	30	0	10957	100
Average Snow Depth (cm)	1981	2010	30	0	10957	100
Median Snow Depth (cm)	1981	2010	30	0	10957	100
Snow Depth at Month-end (cm)	1981	2010	30	0	360	100
Extreme Daily Rainfall (mm)	1943	2010			24656	99.9
Extreme Daily Snowfall (cm)	1943	2010			24656	99.9
Extreme Daily Precipitation (mm)	1943	2010			24656	99.9
Extreme Snow Depth (cm)	1952	2010			20426	99.7

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	2010	30	1	10866	99.2
> 0 °C	1981	2010	30	1	10866	99.2
> 10 °C	1981	2010	30	1	10866	99.2
> 20 °C	1981	2010	30	1	10866	99.2
> 30 °C	1981	2010	30	1	10866	99.2
> 35 °C	1981	2010	30	1	10866	99.2

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	2010	30	1	10866	99.2
<= 2 °C	1981	2010	30	1	10866	99.2
<= 0 °C	1981	2010	30	1	10866	99.2
< -2 °C	1981	2010	30	1	10866	99.2
< -10 °C	1981	2010	30	1	10866	99.2
< -20 °C	1981	2010	30	1	10866	99.2
< - 30 °C	1981	2010	30	1	10866	99.2

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	2010	30	0	10957	100
>= 5 mm	1981	2010	30	0	10957	100
>= 10 mm	1981	2010	30	0	10957	100
>= 25 mm	1981	2010	30	0	10957	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	2010	30	0	10957	100
>= 5 cm	1981	2010	30	0	10957	100
>= 10 cm	1981	2010	30	0	10957	100
>= 25 cm	1981	2010	30	0	10957	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	2010	30	0	10957	100
>= 5 mm	1981	2010	30	0	10957	100
>= 10 mm	1981	2010	30	0	10957	100
>= 25 mm	1981	2010	30	0	10957	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	2010	30	0	10957	100
>= 5 cm	1981	2010	30	0	10957	100
>= 10 cm	1981	2010	30	0	10957	100
>= 20 cm	1981	2010	30	0	10957	100

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	262812	99.9
Most Frequent Direction	1981	2010	30	0	262812	99.9
Maximum Hourly Speed (km/h)	1953	2010			494561	97.3
Maximum Gust Speed (km/h)	1958	2010			18269	98.7
Days with Winds >= 52 km/h	1981	2010	30	1	10803	98.6
Days with Winds >= 63 km/h	1981	2010	30	1	10803	98.6

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	2010	30	1	10866	99.2
Above 18 °C	1981	2010	30	1	10866	99.2
Above 15 °C	1981	2010	30	1	10866	99.2
Above 10 °C	1981	2010	30	1	10866	99.2
Above 5 °C	1981	2010	30	1	10866	99.2
Above 0 °C	1981	2010	30	1	10866	99.2
Below 0 °C	1981	2010	30	1	10866	99.2
Below 5 °C	1981	2010	30	1	10866	99.2
Below 10 °C	1981	2010	30	1	10866	99.2
Below 15 °C	1981	2010	30	1	10866	99.2
Below 18 °C	1981	2010	30	1	10866	99.2

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	1984	4	2	482	85.3

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
Extreme Daily	1959	1998			219310	95.9

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			484453	95.3
Days with Humidex >= 30	1981	2010	30	1	258254	98.2
Days with Humidex >= 35	1981	2010	30	1	258254	98.2
Days with Humidex >= 40	1981	2010	30	1	258254	98.2

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			494553	97.3
Days with Wind Chill < -20	1981	2010	30	0	262804	99.9
Days with Wind Chill < -30	1981	2010	30	0	262804	99.9
Days with Wind Chill < -40	1981	2010	30	0	262804	99.9

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	1	258254	98.2
Average Relative Humidity - 0600LST (%)	1981	2010	30	1	10783	98.4
Average Relative Humidity - 1500LST (%)	1981	2010	30	1	10851	99

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	262801	99.9
Average Sea Level Pressure (kPa)	1981	2010	30	1	262066	99.7

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
Global - RF1 (MJ/m2)	1981	1984	3	2	8760	44
Net - RF4 (MJ/m2)	1981	1984	3	1	10920	53.6
Extreme Global - RF1 (MJ/m2)	1967	1984			142841	94.9
Extreme Net - RF4 (MJ/m2)	1972	1984			99172	93.8

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	28	8	218280	83.1
1 to 9 km	1981	2010	28	8	218280	83.1
> 9 km	1981	2010	28	8	218280	83.1

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	28	8	218280	83.1
3 to 7 tenths	1981	2010	28	8	218280	83.1
8 to 10 tenths	1981	2010	28	8	218280	83.1

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	2010	27	2	27	90.0
Average Date of First Fall Frost	1981	2010	27	2	27	90.0
Average Length of Frost-Free Period	1981	2010	27	2	27	90.0
Probability of last temperature in spring <= 0°C, on or after (Date)
10 %	1944	2010	66	3	63	94.0
25 %	1944	2010	66	3	63	94.0
33 %	1944	2010	66	3	63	94.0
50 %	1944	2010	66	3	63	94.0
66 %	1944	2010	66	3	63	94.0
75 %	1944	2010	66	3	63	94.0
90 %	1944	2010	66	3	63	94.0
Probability of first temperature in fall <= 0°C, on or before (Date)
10 %	1944	2010	66	3	63	94.0
25 %	1944	2010	66	3	63	94.0
33 %	1944	2010	66	3	63	94.0
50 %	1944	2010	66	3	63	94.0
66 %	1944	2010	66	3	63	94.0
75 %	1944	2010	66	3	63	94.0
90 %	1944	2010	66	3	63	94.0
Probability of frost-free period equal to or less than indicated period (Days)
10 %	1944	2010	66	3	63	94.0
25 %	1944	2010	66	3	63	94.0
33 %	1944	2010	66	3	63	94.0
50 %	1944	2010	66	3	63	94.0
66 %	1944	2010	66	3	63	94.0
75 %	1944	2010	66	3	63	94.0
90 %	1944	2010	66	3	63	94.0

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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
NORMAN WELLS A

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Canadian Climate Normals 1981-2010 Station Data

Temperature and Precipitation Graph for 1981 to 2010 Canadian Climate NormalsNORMAN WELLS A

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Temperature and Precipitation Graph for 1981 to 2010 Canadian Climate Normals
NORMAN WELLS A