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
WATERLOO WELLINGTON 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.

WATERLOO WELLINGTON A
ONTARIO

43°27'00.000" N

80°23'00.000" W

317.00 m

6149387

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)	-6.5	-5.5	-1.0	6.2	12.5	17.6	20.0	18.9	14.5	8.2	2.5	-3.3	7.0	C
Standard Deviation	2.9	2.5	2.0	1.4	2.1	1.3	1.3	1.3	1.2	1.4	1.5	2.9	0.9	C
Daily Maximum (°C)	-2.6	-1.2	3.6	11.5	18.5	23.6	26.0	24.8	20.4	13.5	6.3	0.2	12.0	C
Daily Minimum (°C)	-10.3	-9.7	-5.6	0.8	6.4	11.5	14.0	12.9	8.6	2.9	-1.4	-6.8	2.0	C
Extreme Maximum (°C)	14.2	13.7	24.4	29.2	32.0	36.1	36.0	36.5	33.3	29.4	21.7	18.7
Date (yyyy/dd)	1995/ 14	2000/ 26	2000/ 08	1990/ 25	1987/ 28	1988/ 25	1988/ 07	2001/ 08	1973/ 03	1971/ 02	1974/ 01	1982/ 03
Extreme Minimum (°C)	-31.9	-29.2	-25.4	-16.1	-3.9	-0.6	5.0	1.1	-3.7	-8.3	-15.4	-27.2
Date (yyyy/dd)	1984/ 16	1979/ 18	1980/ 02	1972/ 08	1970/ 07	1972/ 11	1971/ 03	1982/ 29	1989/ 27	1976/ 27	2000/ 23	1980/ 25

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)	28.7	29.7	36.8	68.0	81.8	82.4	98.6	83.9	87.8	66.1	75.0	38.0	776.8	C
Snowfall (cm)	43.7	30.3	26.5	7.3	0.4	0.0	0.0	0.0	0.0	1.4	13.0	37.2	159.7	C
Precipitation (mm)	65.2	54.9	61.0	74.5	82.3	82.4	98.6	83.9	87.8	67.4	87.1	71.2	916.5	C
Average Snow Depth (cm)	11	11	6	0	0	0	0	0	0	0	1	5	3	C
Median Snow Depth (cm)	11	11	4	0	0	0	0	0	0	0	0	3	3	C
Snow Depth at Month-end (cm)	12	9	1	0	0	0	0	0	0	0	1	9	3	C
Extreme Daily Rainfall (mm)	43.0	47.0	36.8	53.4	51.8	54.2	89.8	73.7	74.4	39.2	56.0	36.8
Date (yyyy/dd)	1995/ 15	2001/ 09	1991/ 27	1992/ 16	1996/ 20	1984/ 17	1985/ 15	1975/ 24	1986/ 10	1977/ 08	1992/ 12	1990/ 29
Extreme Daily Snowfall (cm)	16.8	17.8	21.2	22.9	6.0	0.0	0.0	0.0	0.0	6.0	16.6	22.4
Date (yyyy/dd)	1992/ 14	1985/ 12	1980/ 08	2002/ 02	1984/ 13	1970/ 01	1970/ 01	1970/ 01	1970/ 01	1997/ 26	1986/ 20	1971/ 30
Extreme Daily Precipitation (mm)	43.0	47.0	53.8	53.4	51.8	54.2	89.8	73.7	74.4	39.2	56.0	36.8
Date (yyyy/dd)	1995/ 15	2001/ 09	1976/ 02	1992/ 16	1996/ 20	1984/ 17	1985/ 15	1975/ 24	1986/ 10	1977/ 08	1992/ 12	1990/ 29
Extreme Snow Depth (cm)	58	74	77	18	0	0	0	0	0	2	19	50
Date (yyyy/dd)	1976/ 24	1982/ 14	1982/ 10	1975/ 04	1970/ 01	1970/ 01	1970/ 01	1970/ 01	1970/ 01	1989/ 21	1986/ 21	2000/ 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	20.7	15.7	9.2	0.64	0.0	0.0	0.0	0.0	0.0	0.0	3.2	14.0	63.5	C
> 0 °C	10.3	12.5	21.8	29.4	31.0	30.0	31.0	31.0	30.0	31.0	26.8	17.0	301.7	C
> 10 °C	0.45	0.50	4.9	17.3	29.3	29.9	31.0	31.0	29.6	22.5	7.4	1.6	205.4	C
> 20 °C	0.0	0.0	0.29	2.9	11.6	23.5	29.7	28.1	15.9	3.6	0.15	0.0	115.7	C
> 30 °C	0.0	0.0	0.0	0.0	0.32	2.1	3.6	1.9	0.45	0.0	0.0	0.0	8.4	C
> 35 °C	0.0	0.0	0.0	0.0	0.0	0.05	0.23	0.05	0.0	0.0	0.0	0.0	0.33	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	1.5	1.9	4.0	15.5	28.9	30.0	31.0	31.0	29.2	21.7	10.4	2.5	207.6	C
<= 2 °C	30.5	27.9	29.2	19.6	6.1	0.23	0.0	0.09	2.6	14.6	24.2	29.8	184.7	C
<= 0 °C	29.5	26.4	27.0	14.5	2.1	0.0	0.0	0.0	0.77	9.3	19.7	28.5	157.6	C
< -2 °C	27.2	23.6	21.9	8.3	0.18	0.0	0.0	0.0	0.18	3.8	13.1	23.1	121.3	C
< -10 °C	15.1	13.4	6.7	0.18	0.0	0.0	0.0	0.0	0.0	0.0	0.85	9.1	45.4	C
< -20 °C	2.9	2.0	0.41	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.67	6.0	C
< - 30 °C	0.05	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.05	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	5.6	5.0	6.9	11.5	12.4	12.0	10.6	10.7	12.2	13.7	11.6	6.9	118.7	C
>= 5 mm	1.8	1.8	2.5	4.1	5.1	5.2	5.1	4.4	5.0	4.4	4.7	2.8	46.9	C
>= 10 mm	0.95	1.0	1.4	2.1	2.9	3.1	3.4	2.8	2.8	2.4	2.4	1.2	26.4	C
>= 25 mm	0.09	0.14	0.09	0.32	0.45	0.36	0.95	0.77	0.68	0.14	0.48	0.14	4.6	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	16.1	11.9	9.0	3.3	0.18	0.0	0.0	0.0	0.0	0.91	6.5	14.4	62.2	C
>= 5 cm	2.5	1.8	1.9	0.36	0.05	0.0	0.0	0.0	0.0	0.05	0.67	2.3	9.6	C
>= 10 cm	0.64	0.50	0.64	0.09	0.0	0.0	0.0	0.0	0.0	0.0	0.05	0.57	2.5	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	18.2	14.2	13.8	13.7	12.4	12.0	10.6	10.7	12.2	13.9	16.4	18.1	166.0	C
>= 5 mm	4.3	3.2	4.0	4.5	5.2	5.2	5.1	4.4	5.0	4.5	5.3	4.5	55.1	C
>= 10 mm	1.5	1.6	1.8	2.3	2.9	3.1	3.4	2.8	2.8	2.4	2.5	2.1	29.2	C
>= 25 mm	0.09	0.18	0.27	0.32	0.45	0.36	0.95	0.77	0.68	0.14	0.48	0.38	5.1	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	26.9	24.3	17.2	1.7	0.0	0.0	0.0	0.0	0.0	0.18	5.6	19.4	95.3	C
>= 5 cm	20.6	17.5	9.7	0.41	0.0	0.0	0.0	0.0	0.0	0.0	1.1	10.5	59.8	C
>= 10 cm	13.7	11.2	6.5	0.05	0.0	0.0	0.0	0.0	0.0	0.0	0.33	4.5	36.2	C
>= 20 cm	6.8	5.1	1.5	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	1.4	14.7	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)	15.2	14.3	14.9	14.6	12.3	10.4	9.6	8.5	9.8	11.7	14.5	14.8	12.6	C
Most Frequent Direction	W	W	W	NW	NW	NW	NW	NW	NW	W	W	SW	W	C
Maximum Hourly Speed (km/h)	70	67	74	72	71	52	52	45	53	63	66	61
Date (yyyy/dd)	1982/ 04	2002/ 01	2002/ 09	1984/ 30	1976/ 05	1998/ 02	2001/ 01	1966/ 09	1967/ 26	2001/ 26	1975/ 10	1972/ 13
Direction of Maximum Hourly Speed	SW	W	W	S	SW	W	NW	W	S	SW	SW	SW
Maximum Gust Speed (km/h)	113	113	120	98	106	89	111	98	89	96	100	96
Date (yyyy/dd)	1978/ 26	2002/ 01	1981/ 30	1984/ 30	1976/ 05	1998/ 02	1997/ 14	1990/ 27	1997/ 29	2001/ 25	1998/ 11	1982/ 28
Direction of Maximum Gust	S	W	SW	SW	SW	W	W	N	W	SW	SW	SW

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	0.1	1.6	5.2	2.5	0.3	0	0	0	9.8	C
Above 18 °C	0	0	0	1	10.2	40.9	77.2	54.7	16.6	0.7	0	0	201.4	C
Above 15 °C	0	0	0.1	3.7	30.2	94.1	157.3	125	46.3	4.5	0	0	461.2	C
Above 10 °C	0	0	2.3	20.3	103.6	227.6	310.8	275.6	145.8	33	3.8	0.6	1123.2	C
Above 5 °C	1.2	0.9	13.4	75.1	234.7	376.8	465.8	430.5	286.4	115.6	28.1	5	2033.3	C
Above 0 °C	11	13.9	55.4	190.6	388.6	526.8	620.8	585.5	436.2	255.6	100.1	26.1	3210.6	C
Below 0 °C	211.7	168	89.7	6.1	0	0	0	0	0	0.2	23.6	129.4	628.8	C
Below 5 °C	356.8	296.1	202.7	40.7	1.1	0	0	0	0.1	15.2	101.7	263.3	1277.6	C
Below 10 °C	510.7	436.4	346.7	135.8	25	0.8	0	0.2	9.6	87.5	227.3	413.8	2193.7	C
Below 15 °C	665.7	577.5	499.4	269.3	106.6	17.2	1.5	4.6	60.1	214.1	373.6	568.3	3357.8	C
Below 18 °C	758.7	662.2	592.4	356.6	179.7	54	14.4	27.2	120.4	303.3	463.6	661.3	4193.6	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)					4.2	4.9	4.9	4	2.8	1.7

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	13.4	13.0	28.0	33.7	39.6	43.2	47.7	48.3	41.2	34.5	24.4	22.1
Date (yyyy/dd)	1995/ 14	1997/ 21	1998/ 30	2002/ 16	1987/ 30	1988/ 25	1995/ 14	1988/ 02	1983/ 10	1971/ 02	1987/ 03	1982/ 03

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)	-40	-37	-30	-21	-8	0	0	0	-4	-12	-22	-31
Date (yyyy/dd)	1982/ 17	1979/ 17	1989/ 07	1982/ 04	1978/ 01	1966/ 13	1966/ 01	1966/ 01	1989/ 27	1969/ 23	1976/ 29	1983/ 26

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 Relative Humidity - 0600LST (%)	86.4	83.4	84.8	84.4	84.7	87	90.1	93.6	94.3	90.6	87.6	87.1	87.8	D
Average Relative Humidity - 1500LST (%)	78.2	75.4							66.5	69.7		81.7

Frost-Free

1981 to 2010 Canadian Climate Normals station data
Frost-Free
	Date/Days	Code
Average Date of Last Spring Frost	May 07	D
Average Date of First Fall Frost	Oct 02	D
Average Length of Frost-Free Period	147 Days	D

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	May 18	May 15	May 13	May 08	May 04	Apr 30	Apr 28
Probability of first temperature in fall of 0 °C or lower on or before indicated dates	10%	25%	33%	50%	66%	75%	90%
Date	Sep 19	Sep 24	Sep 25	Sep 30	Oct 03	Oct 08	Oct 16
Probability of frost-free period equal to or less than indicated period (Days)	10%	25%	33%	50%	66%	75%	90%
Days	128	135	136	144	152	157	169

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.

WATERLOO WELLINGTON A

Province/Territory

Latitude (dd mm):

43 27 N

Country

CAN

Longitude (ddd mm):

80 23 W

Time Zone

EST

Latitude (decimal degrees):

43.45 N

Climate ID:

6149387

Longitude (decimal degrees):

80.38 W

WMO ID:

Elevation (m):

317

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	2002	22	0	7970	100
Standard Deviation	1981	2002	22	0	7970	100
Daily Maximum (°C)	1981	2002	22	0	7971	100
Daily Minimum (°C)	1981	2002	22	0	7973	100
Extreme Maximum (°C)	1970	2002			11930	100
Extreme Minimum (°C)	1970	2002			11932	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	2002	22	0	7974	100
Snowfall (cm)	1981	2002	22	0	7974	100
Precipitation (mm)	1981	2002	22	0	7974	100
Average Snow Depth (cm)	1981	2002	22	0	7973	100
Median Snow Depth (cm)	1981	2002	22	0	7973	100
Snow Depth at Month-end (cm)	1981	2002	22	0	262	100
Extreme Daily Rainfall (mm)	1970	2002			11933	100
Extreme Daily Snowfall (cm)	1970	2002			11933	100
Extreme Daily Precipitation (mm)	1970	2002			11933	100
Extreme Snow Depth (cm)	1970	2002			11932	100

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	2002	22	1	7913	99.2
> 0 °C	1981	2002	22	1	7913	99.2
> 10 °C	1981	2002	22	1	7913	99.2
> 20 °C	1981	2002	22	1	7913	99.2
> 30 °C	1981	2002	22	1	7913	99.2
> 35 °C	1981	2002	22	1	7913	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	2002	22	1	7944	99.6
<= 2 °C	1981	2002	22	1	7944	99.6
<= 0 °C	1981	2002	22	1	7944	99.6
< -2 °C	1981	2002	22	1	7944	99.6
< -10 °C	1981	2002	22	1	7944	99.6
< -20 °C	1981	2002	22	1	7944	99.6
< - 30 °C	1981	2002	22	1	7944	99.6

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	2002	22	0	7974	100
>= 5 mm	1981	2002	22	0	7974	100
>= 10 mm	1981	2002	22	0	7974	100
>= 25 mm	1981	2002	22	0	7974	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	2002	22	0	7974	100
>= 5 cm	1981	2002	22	0	7974	100
>= 10 cm	1981	2002	22	0	7974	100
>= 25 cm	1981	2002	22	0	7974	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	2002	22	0	7974	100
>= 5 mm	1981	2002	22	0	7974	100
>= 10 mm	1981	2002	22	0	7974	100
>= 25 mm	1981	2002	22	0	7974	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	2002	22	1	7943	99.6
>= 5 cm	1981	2002	22	1	7943	99.6
>= 10 cm	1981	2002	22	1	7943	99.6
>= 20 cm	1981	2002	22	1	7943	99.6

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	2002	22	2	179890	94
Most Frequent Direction	1981	2002	22	2	180716	99.4
Maximum Hourly Speed (km/h)	1966	2002			283510	88.8
Maximum Gust Speed (km/h)	1971	2002			10782	97.9

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	2002	22	1	7882	98.9
Above 18 °C	1981	2002	22	1	7882	98.9
Above 15 °C	1981	2002	22	1	7882	98.9
Above 10 °C	1981	2002	22	1	7882	98.9
Above 5 °C	1981	2002	22	1	7882	98.9
Above 0 °C	1981	2002	22	1	7882	98.9
Below 0 °C	1981	2002	22	1	7882	98.9
Below 5 °C	1981	2002	22	1	7882	98.9
Below 10 °C	1981	2002	22	1	7882	98.9
Below 15 °C	1981	2002	22	1	7882	98.9
Below 18 °C	1981	2002	22	1	7882	98.9

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)	1984	1995	11	1	1806	95.6

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	1966	2002			134101	42

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)	1966	2002			134103	42

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 Relative Humidity - 0600LST (%)	1981	2002	22	1	7557	97.4
Average Relative Humidity - 1500LST (%)	1981	1982	1		151	4.6

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	2001	19	1	19	90.5
Average Date of First Fall Frost	1981	2001	19	1	19	90.5
Average Length of Frost-Free Period	1981	2001	19	1	19	90.5
Probability of last temperature in spring <= 0°C, on or after (Date)
10 %	1971	2001	30	1	29	93.5
25 %	1971	2001	30	1	29	93.5
33 %	1971	2001	30	1	29	93.5
50 %	1971	2001	30	1	29	93.5
66 %	1971	2001	30	1	29	93.5
75 %	1971	2001	30	1	29	93.5
90 %	1971	2001	30	1	29	93.5
Probability of first temperature in fall <= 0°C, on or before (Date)
10 %	1971	2001	30	1	29	93.5
25 %	1971	2001	30	1	29	93.5
33 %	1971	2001	30	1	29	93.5
50 %	1971	2001	30	1	29	93.5
66 %	1971	2001	30	1	29	93.5
75 %	1971	2001	30	1	29	93.5
90 %	1971	2001	30	1	29	93.5
Probability of frost-free period equal to or less than indicated period (Days)
10 %	1971	2001	30	1	29	93.5
25 %	1971	2001	30	1	29	93.5
33 %	1971	2001	30	1	29	93.5
50 %	1971	2001	30	1	29	93.5
66 %	1971	2001	30	1	29	93.5
75 %	1971	2001	30	1	29	93.5
90 %	1971	2001	30	1	29	93.5

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Canadian Climate Normals 1981-2010 Station Data

Temperature and Precipitation Graph for 1981 to 2010 Canadian Climate Normals
WATERLOO WELLINGTON A

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Canadian Climate Normals 1981-2010 Station Data

Temperature and Precipitation Graph for 1981 to 2010 Canadian Climate NormalsWATERLOO WELLINGTON A

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Temperature and Precipitation Graph for 1981 to 2010 Canadian Climate Normals
WATERLOO WELLINGTON A