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
HAMILTON 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.

HAMILTON A *
ONTARIO

43°10'18.072" N

79°56'03.036" W

237.70 m

6153194

71263

YHM

* 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)	-5.5	-4.6	-0.1	6.7	12.8	18.3	20.9	20.0	15.8	9.3	3.7	-2.3	7.9	A
Standard Deviation	3.0	2.3	1.9	1.5	1.8	1.3	1.4	1.2	1.2	1.4	1.5	2.6	0.7	A
Daily Maximum (°C)	-1.7	-0.5	4.3	11.8	18.5	23.9	26.5	25.3	21.2	14.1	7.5	1.2	12.7	A
Daily Minimum (°C)	-9.3	-8.6	-4.5	1.5	7.1	12.6	15.2	14.5	10.4	4.5	-0.2	-5.8	3.1	A
Extreme Maximum (°C)	16.7	15.8	25.0	29.7	33.1	35.0	37.4	36.4	34.4	30.3	24.4	20.7
Date (yyyy/dd)	2005/ 13	1997/ 21	1998/ 31	1990/ 25	2006/ 29	1988/ 25	1988/ 07	2001/ 08	1973/ 03	2007/ 08	1961/ 03	1982/ 03
Extreme Minimum (°C)	-30.0	-26.7	-24.6	-12.8	-3.9	1.1	5.6	1.1	-2.2	-7.8	-19.3	-26.8
Date (yyyy/dd)	2004/ 16	1994/ 10	2003/ 03	1972/ 07	1966/ 10	1998/ 06	1961/ 05	1965/ 30	1974/ 23	1965/ 29	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)	29.7	28.2	42.6	71.3	78.7	84.9	100.7	79.2	81.9	76.5	74.4	43.8	791.7	A
Snowfall (cm)	40.8	35.1	26.5	8.4	0.5	0.0	0.0	0.0	0.0	0.7	11.0	33.5	156.5	A
Precipitation (mm)	64.0	57.8	68.4	79.1	79.4	84.9	100.7	79.2	81.9	77.4	84.3	73.0	929.8	A
Average Snow Depth (cm)	10	10	5	1	0	0	0	0	0	0	1	4	2	A
Median Snow Depth (cm)	9	9	3	0	0	0	0	0	0	0	0	3	2	A
Snow Depth at Month-end (cm)	12	8	1	0	0	0	0	0	0	0	1	5	2	A
Extreme Daily Rainfall (mm)	39.3	54.1	41.0	45.2	39.9	66.6	107.0	90.8	59.4	91.0	58.8	56.8
Date (yyyy/dd)	1995/ 15	1990/ 22	2010/ 13	1996/ 13	1969/ 18	1984/ 17	1989/ 26	1981/ 08	1996/ 07	1995/ 05	1999/ 02	1990/ 29
Extreme Daily Snowfall (cm)	43.2	30.4	28.0	29.2	11.0	0.0	0.0	0.0	0.0	23.6	21.5	35.6
Date (yyyy/dd)	1966/ 22	2007/ 13	1999/ 06	1979/ 09	1989/ 07	1960/ 01	1960/ 01	1960/ 01	1960/ 01	1962/ 25	1997/ 14	1969/ 23
Extreme Daily Precipitation (mm)	44.6	54.1	42.8	45.2	39.9	66.6	107.0	90.8	59.4	91.0	58.8	56.8
Date (yyyy/dd)	1982/ 31	1990/ 22	2010/ 13	1996/ 13	1969/ 18	1984/ 17	1989/ 26	1981/ 08	1996/ 07	1995/ 05	1999/ 02	1990/ 29
Extreme Snow Depth (cm)	59	64	37	39	3	0	0	0	0	2	17	50
Date (yyyy/dd)	2001/ 05	1978/ 07	1993/ 06	2003/ 08	1989/ 07	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	18.7	14.9	7.3	0.60	0.0	0.0	0.0	0.0	0.0	0.0	2.1	12.6	56.1	A
> 0 °C	12.3	13.4	23.7	29.4	31.0	30.0	31.0	31.0	30.0	31.0	27.9	18.4	309.1	A
> 10 °C	0.90	0.67	5.7	17.3	29.2	30.0	31.0	31.0	29.9	24.0	9.1	1.8	210.5	A
> 20 °C	0.0	0.0	0.60	3.3	11.0	24.0	30.1	29.0	17.9	4.1	0.13	0.03	120.2	A
> 30 °C	0.0	0.0	0.0	0.0	0.50	3.0	4.7	2.4	0.60	0.03	0.0	0.0	11.2	A
> 35 °C	0.0	0.0	0.0	0.0	0.0	0.0	0.13	0.03	0.0	0.0	0.0	0.0	0.16	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	2.6	2.0	6.4	18.8	30.1	30.0	31.0	31.0	29.9	26.8	14.1	4.1	226.8	A
<= 2 °C	30.2	27.7	28.6	16.7	3.3	0.07	0.0	0.0	0.80	9.5	21.3	29.5	167.7	A
<= 0 °C	28.4	26.2	24.6	11.2	0.90	0.0	0.0	0.0	0.13	4.2	15.9	26.9	138.4	A
< -2 °C	25.8	23.3	20.0	5.6	0.0	0.0	0.0	0.0	0.0	1.2	9.8	21.8	107.5	A
< -10 °C	13.5	11.3	5.1	0.13	0.0	0.0	0.0	0.0	0.0	0.0	0.43	7.2	37.7	A
< -20 °C	2.1	0.73	0.13	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.33	3.3	A
< - 30 °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 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	5.4	4.9	7.9	11.7	12.6	11.2	11.3	10.3	11.0	12.5	11.2	7.9	117.8	A
>= 5 mm	2.1	1.8	2.8	4.5	5.8	5.1	4.7	4.2	4.6	4.7	4.5	3.0	47.8	A
>= 10 mm	1.0	0.80	1.4	2.5	2.8	3.0	3.5	2.8	2.9	2.6	2.4	1.5	27.1	A
>= 25 mm	0.10	0.17	0.13	0.40	0.27	0.73	1.1	0.70	0.73	0.43	0.57	0.10	5.5	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	14.5	11.6	8.1	2.7	0.10	0.0	0.0	0.0	0.0	0.43	4.8	12.0	54.2	A
>= 5 cm	2.6	1.8	1.6	0.43	0.03	0.0	0.0	0.0	0.0	0.03	0.57	2.1	9.2	A
>= 10 cm	0.87	0.77	0.57	0.23	0.03	0.0	0.0	0.0	0.0	0.0	0.13	0.63	3.2	A
>= 25 cm	0.07	0.13	0.07	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.27	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	16.6	13.8	13.6	13.1	12.6	11.2	11.3	10.3	11.0	12.5	14.3	15.9	156.2	A
>= 5 mm	4.3	3.5	4.4	4.9	5.8	5.1	4.7	4.2	4.6	4.9	5.0	4.6	56.0	A
>= 10 mm	1.8	1.5	2.1	2.8	2.8	3.0	3.5	2.8	2.9	2.6	2.6	2.2	30.6	A
>= 25 mm	0.17	0.30	0.33	0.47	0.27	0.73	1.1	0.70	0.73	0.43	0.60	0.23	6.1	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	23.2	22.1	13.9	1.9	0.03	0.0	0.0	0.0	0.0	0.03	3.6	16.6	81.3	A
>= 5 cm	18.1	16.0	9.3	0.87	0.0	0.0	0.0	0.0	0.0	0.0	1.4	8.3	54.0	A
>= 10 cm	10.8	10.6	5.9	0.60	0.0	0.0	0.0	0.0	0.0	0.0	0.70	3.8	32.4	A
>= 20 cm	4.8	4.7	2.3	0.30	0.0	0.0	0.0	0.0	0.0	0.0	0.0	1.8	13.9	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)	19.5	18.6	18.5	18.6	15.9	14.0	12.6	11.8	13.1	15.6	17.4	18.7	16.2	A
Most Frequent Direction	SW	W	W	NE	NE	SW	W	SW	SW	SW	W	SW	W	A
Maximum Hourly Speed (km/h)	89	85	78	89	74	74	56	50	52	67	93	81
Date (yyyy/dd)	1978/ 26	1997/ 27	1998/ 28	1979/ 06	2003/ 11	1992/ 17	1977/ 31	1983/ 11	2000/ 21	1990/ 18	1998/ 11	1982/ 28
Direction of Maximum Hourly Speed	SW	SW	W	W	SW	S	SW	NE	W	SW	SW	W
Maximum Gust Speed (km/h)	133	122	126	119	105	102	106	96	93	96	115	109
Date (yyyy/dd)	1978/ 26	1997/ 27	1973/ 15	1979/ 06	1973/ 16	1992/ 17	1989/ 26	1990/ 27	2002/ 14	1983/ 13	1998/ 11	1982/ 28
Direction of Maximum Gust	SW	SW	W	W	SW	NW	W	W	SW	SW	SW	W
Days with Winds >= 52 km/h	3.4	3.0	3.4	3.2	2.0	1.0	0.7	0.7	1.0	2.5	3.1	3.7	27.5	C
Days with Winds >= 63 km/h	1.4	0.8	1.1	1.0	0.9	0.6	0.3	0.4	0.2	1.1	1.0	1.1	9.9	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	0.2	2.6	7.9	3.5	0.7	0	0	0	14.8	A
Above 18 °C	0	0	0	1.1	11.4	50.8	96.3	75	23.3	1.6	0	0	259.6	A
Above 15 °C	0	0	0.4	4.1	31.4	110.8	182	155.1	63	7.7	0	0.1	554.5	A
Above 10 °C	0.2	0	3.6	22.7	106.5	248.6	336.5	308.3	179.2	44.7	5.3	0.7	1256.3	A
Above 5 °C	2.7	1.2	17.7	84.1	241.9	398.3	491.5	463.3	325	142.1	37.5	6.1	2211.5	A
Above 0 °C	18	16.3	67.1	205.2	396.4	548.3	646.5	618.3	475	289.3	125.6	33.8	3439.7	A
Below 0 °C	188.4	145.3	70.9	4.6	0	0	0	0	0	0	15.1	105.6	529.9	A
Below 5 °C	328.1	271.5	176.5	33.5	0.6	0	0	0	0	7.8	77	233	1127.9	A
Below 10 °C	480.6	411.4	317.3	122.1	20.1	0.3	0	0	4.2	65.5	194.8	382.6	1998.9	A
Below 15 °C	635.4	552.6	469.2	253.5	100	12.6	0.5	1.7	38	183.5	339.5	536.9	3123.2	A
Below 18 °C	728.4	637.3	561.8	340.5	173.1	42.5	7.8	14.7	88.3	270.4	429.5	629.9	3,924	A

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	17.6	16.5	27.7	33.4	40.5	43.7	49.1	47.6	40.6	37.7	25.1	24.5
Date (yyyy/dd)	2005/ 13	1997/ 21	1998/ 30	1990/ 25	2006/ 29	1981/ 15	1995/ 14	2006/ 01	1973/ 02	2007/ 08	1974/ 01	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)	-43	-37	-31	-23	-8	0	0	0	-5	-11	-23	-34
Date (yyyy/dd)	1994/ 19	1976/ 02	1989/ 07	1972/ 07	1978/ 01	1970/ 01	1970/ 01	1970/ 01	1974/ 23	1976/ 27	2005/ 24	1980/ 25

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 (%)	84.3	83.6	82.9	81.3	83	85.8	88.7	92	92.4	89.9	86.9	85.8	86.4	A
Average Relative Humidity - 1500LST (%)	75.4	72.1	66	58.8	56.9	57.5	57.9	61	62.3	65.6	73.3	76.3	65.3	A

Frost-Free

1981 to 2010 Canadian Climate Normals station data
Frost-Free
	Date/Days	Code
Average Date of Last Spring Frost	Apr 29	A
Average Date of First Fall Frost	Oct 14	A
Average Length of Frost-Free Period	167 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	May 13	May 07	May 05	Apr 28	Apr 25	Apr 24	Apr 16
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 30	Oct 05	Oct 09	Oct 13	Oct 19	Oct 20	Oct 31
Probability of frost-free period equal to or less than indicated period (Days)	10%	25%	33%	50%	66%	75%	90%
Days	145	155	157	163	174	176	193

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.

HAMILTON A

Province/Territory

Latitude (dd mm):

43 10 N

Country

CAN

Longitude (ddd mm):

79 56 W

Time Zone

EST

Latitude (decimal degrees):

43.17 N

Climate ID:

6153194

Longitude (decimal degrees):

79.93 W

WMO ID:

71263

Elevation (m):

237.7

TC ID:

YHM

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	10956	100
Standard Deviation	1981	2010	30	0	10956	100
Daily Maximum (°C)	1981	2010	30	0	10956	100
Daily Minimum (°C)	1981	2010	30	0	10956	100
Extreme Maximum (°C)	1959	2010			18358	99
Extreme Minimum (°C)	1959	2010			18449	99.4

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	10956	100
Median Snow Depth (cm)	1981	2010	30	0	10956	100
Snow Depth at Month-end (cm)	1981	2010	30	0	360	100
Extreme Daily Rainfall (mm)	1959	2010			18244	99.9
Extreme Daily Snowfall (cm)	1959	2010			18273	99.9
Extreme Daily Precipitation (mm)	1959	2010			18229	99.8
Extreme Snow Depth (cm)	1970	2010			14915	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	2010	30	1	10927	99.7
> 0 °C	1981	2010	30	1	10927	99.7
> 10 °C	1981	2010	30	1	10927	99.7
> 20 °C	1981	2010	30	1	10927	99.7
> 30 °C	1981	2010	30	1	10927	99.7
> 35 °C	1981	2010	30	1	10927	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	2010	30	1	10927	99.7
<= 2 °C	1981	2010	30	1	10927	99.7
<= 0 °C	1981	2010	30	1	10927	99.7
< -2 °C	1981	2010	30	1	10927	99.7
< -10 °C	1981	2010	30	1	10927	99.7
< -20 °C	1981	2010	30	1	10927	99.7
< - 30 °C	1981	2010	30	1	10927	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	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	1	10926	99.7
>= 5 cm	1981	2010	30	1	10926	99.7
>= 10 cm	1981	2010	30	1	10926	99.7
>= 20 cm	1981	2010	30	1	10926	99.7

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	1	258837	98.4
Most Frequent Direction	1981	2010	30	1	258779	99.5
Maximum Hourly Speed (km/h)	1970	2010			349141	97.2
Maximum Gust Speed (km/h)	1971	2010			13892	99
Days with Winds >= 52 km/h	1981	2010	28	3	8955	81.7
Days with Winds >= 63 km/h	1981	2010	28	3	8955	81.7

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	10927	99.7
Above 18 °C	1981	2010	30	1	10927	99.7
Above 15 °C	1981	2010	30	1	10927	99.7
Above 10 °C	1981	2010	30	1	10927	99.7
Above 5 °C	1981	2010	30	1	10927	99.7
Above 0 °C	1981	2010	30	1	10927	99.7
Below 0 °C	1981	2010	30	1	10927	99.7
Below 5 °C	1981	2010	30	1	10927	99.7
Below 10 °C	1981	2010	30	1	10927	99.7
Below 15 °C	1981	2010	30	1	10927	99.7
Below 18 °C	1981	2010	30	1	10927	99.7

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	1970	2010			268770	74.8

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)	1970	2010			268780	74.8

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	2010	30	1	10596	96.7
Average Relative Humidity - 1500LST (%)	1981	2010	30	1	10917	99.6

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	2010	29	0	29	96.7
Average Date of First Fall Frost	1981	2010	29	0	29	96.7
Average Length of Frost-Free Period	1981	2010	29	0	29	96.7
Probability of last temperature in spring <= 0°C, on or after (Date)
10 %	1971	2010	39	0	39	97.5
25 %	1971	2010	39	0	39	97.5
33 %	1971	2010	39	0	39	97.5
50 %	1971	2010	39	0	39	97.5
66 %	1971	2010	39	0	39	97.5
75 %	1971	2010	39	0	39	97.5
90 %	1971	2010	39	0	39	97.5
Probability of first temperature in fall <= 0°C, on or before (Date)
10 %	1971	2010	39	0	39	97.5
25 %	1971	2010	39	0	39	97.5
33 %	1971	2010	39	0	39	97.5
50 %	1971	2010	39	0	39	97.5
66 %	1971	2010	39	0	39	97.5
75 %	1971	2010	39	0	39	97.5
90 %	1971	2010	39	0	39	97.5
Probability of frost-free period equal to or less than indicated period (Days)
10 %	1971	2010	39	0	39	97.5
25 %	1971	2010	39	0	39	97.5
33 %	1971	2010	39	0	39	97.5
50 %	1971	2010	39	0	39	97.5
66 %	1971	2010	39	0	39	97.5
75 %	1971	2010	39	0	39	97.5
90 %	1971	2010	39	0	39	97.5

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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
HAMILTON A

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Canadian Climate Normals 1981-2010 Station Data

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

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