Waterloo Historic Weather Records
Analyse hottest, coldest, windiest & wettest days

Waterloo Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	-7.09375	-10		-0.86875	-9.1
	-8.31875	-9.8		-2.825	-6.3
	-8.756250000000001	-10		-2.8062500000000004	-4.5
	-8.224999999999998	-10		-1.9312499999999995	-6.1
	-8.043750000000001	-6.4		-3.11875	-0.7
	-9.068750000000001	-2.6		-3.2312499999999993	0.9
	-10.600000000000001	-0.8		-3.662499999999999	0.5
	-9.218749999999998	-0.6		-3.3875	1.2
	-9.05625	0.6		-2.0250000000000004	5.4
	-7.8875	-1.5		-0.9437499999999999	0.4
	-6.2125	-3.3		0.043749999999999845	-0.3
	-6.025000000000002	-4.1		0.15000000000000005	-0.3
	-8.56875	-1.5		-2.18125	1.3
	-10.19375	-10.5		-3.1125000000000003	0.7
Jan.	-9.5375	-13.9		-3.39375	-10.4
	-10.3125	-9.8		-2.1437500000000003	-2
	-9.468750000000002	-8		-2.1375	-0.5
	-7.062500000000001	-13.8		-2.1124999999999994	-8.3
	-8.71875	-13.8		-2.79375	-8.2
	-12.09375	-17.3		-5.30625	-11.3
	-12.7	-13.4		-5.525	-3.1
	-12.39375	-11.2		-4.112500000000001	-4.8
	-9.925	-16.6		-3.0812499999999994	-8.7
	-10.21875	-17.9		-3.0875000000000004	-12.7
	-8.3	-15.4		-2	-8.8
	-8.0625	-14		-2.55	-9
	-8.393749999999999	-16.6		-2.53125	-9.9
	-10.593750000000002	-17.3		-2.875	-11.3
	-11.231249999999998	-19.7		-3.4625	-13.2
	-12.775	-22.9		-3.7125	-13.5
	-11.399999999999999	-16.6		-2.71875	-11.3
	-10.299999999999997	-19.4		-2.7687499999999994	-4.3
	-10.349999999999998	-17.1		-3.125	-8.6
	-9.54375	-13.3		-2.175	-7
	-10.325000000000001	-15.5		-1.825	-7.3
	-9.956249999999999	-11.1		-3.1499999999999995	-6
	-9.25625	-14.5		-3.2125000000000004	-2.7
	-9.26875	-22		-1.0875	-14.1
	-10.61875	-20.3		-2.5875	-11.4
	-10.325000000000001	-20		-2.85	-8.5
	-10.512500000000001	-10.7		-3.3375000000000004	-1.2
	-10	-5.5		-2.9249999999999994	-2.3
	-11.493750000000002	-11		-2.8750000000000004	-5.4
	-12.4125	-11.6		-3.7375000000000007	-1.4
	-12.187500000000002	-2.8		-2.5749999999999997	-0.2
Feb.	-10.275	-4.3		-2.2624999999999997	-0.5
	-10.837499999999999	-2.2		-2.6062499999999997	-0.6
	-12.031249999999998	0.1		-3.125000000000001	0.8
	-9.868749999999999	-2.4		-1.6062499999999997	-0.9
	-9.1875	-3.3		-1.1375000000000002	-1
	-9.23125	-0.5		-0.6437499999999998	1.8
	-8.168750000000001	-1.5		1.025	-0.5
	-6.2875000000000005	-1.9		0.48125000000000007	0.9
	-7.7250000000000005	-10.8		1.1125	-1.3
	-7.0562499999999995	-15.2		0.3625000000000002	-5.5
	-8.2875	-6.3		-0.8687499999999999	-2
	-9.187499999999998	-12.9		-1.675	-3.9
	-7.106249999999998	-6.2		0.012500000000000289	4.9
	-8.393749999999999	-5.2		0.8062499999999998	2.5
	-8.424999999999999	-9.7		0.7125	-5.7
	-9.7375	-13.3		-1.7625000000000002	-1.7
	-9.43125	-7.7		-1.4187499999999997	-0.3
	-8.81875	-2.8		-0.71875	2.2
	-8.856250000000001	-3.1		0.06250000000000006	0.2
	-8.10625	-1.1		0.9749999999999998	1
	-6.656250000000001	4.5		1.18125	11.2
	-6.0875	-0.6		2.7750000000000004	8
	-4.675000000000001	1.4		4.468749999999999	14.4
	-1.775	4		5.525	9.3
	-2.7562500000000005	0.8		3.93125	13.7
	-5.325	-3.7		2.6750000000000003	4.3
	-5.300000000000002	-3.5		3.3249999999999997	3.9
	-3.1750000000000003	-5		4.31875	-1.5
Mar.	-3.38125	-4.5		5.2437499999999995	2.9
	-3.2249999999999996	-4.5		5.231249999999999	6.5
	-3.19375	-10.7		6.768749999999999	-7.1
	-2.1500000000000004	-7.7		6.36875	-0.9
	-2.8937500000000003	-1.6		6.0375	2.3
	-2.71875	-0.9		6.3687499999999995	5.1
	-2.5812499999999994	-1.7		6.962500000000001	0.9
	-3.69375	0.4		3.55625	4.4
	-4.2125	-3.2		3.3812499999999996	1.7
	-2.9250000000000003	-6.3		5.6937500000000005	5.5
	-2.9999999999999996	-2.6		4.374999999999999	6.4
	-3.656249999999999	1.3		5.0375	11.4
	-3.4187500000000006	-4		4.5875	3.9
	-3.0562500000000004	-6.1		5.981250000000001	0.9
	-2.3249999999999997	-1.8		6.24375	8.9
	-1.9500000000000002	2.5		7.11875	9.4
	-1.34375	8.7		7.824999999999999	14.9
	-1.125	0.9		6.731250000000001	3.3
	-1.5499999999999998	-0.7		8.024999999999999	2.9
	-0.4999999999999998	3.4		8.0625	19.7
	-0.9875000000000003	2		8.3375	9
	-0.44374999999999987	0.1		7.2562500000000005	4.1
	-1.0375	-1.7		8.356250000000001	5.2
	-0.5375000000000001	-8.3		9.156249999999998	-2
	-0.55	-8.5		8.831249999999999	12.5
	0.425	0.1		9.55	21.9
	1.3374999999999995	3.7		11.4	9.4
	1.4875000000000003	-0.3		10.174999999999999	10.9
	1.75	0.9		12.33125	15.2
	2.9187499999999997	13		13.418750000000001	20.7
	1.38125	11.4		12.043750000000001	22.6
Apr.	1.1	10.7		11.406250000000002	20.9
	1.875	13.8		10.493749999999999	18.6
	0.58125	10.3		10.337500000000002	16.2
	1.34375	4.1		10.95625	19.7
	1.31875	-0.8		11.599999999999998	6.7
	1.4499999999999997	-3.2		10.893750000000002	3
	1.6749999999999998	-1.4		12.34375	18.2
	0.8937499999999998	2.1		10.7625	19.6
	1.2937500000000002	3		12.524999999999999	24.6
	2.325	4.8		12.418750000000001	14.7
	2.125	4.3		10.78125	6
	1.5750000000000004	1.9		11.274999999999999	18.7
	2.1625	3.4		12.66875	22.4
	2.6375	10.8		13.25	16.1
	4.1	4.6		12.4125	12.2
	3.4875000000000007	2		13.337500000000002	9.4
	5.6375	-0.2		15.1625	8.9
	7.375	-0.5		15.05625	6
	6.14375	-0.3		14.99375	17
	6.4875	5.7		15.84375	23.6
	5.9375	9.5		15.799999999999999	19.1
	5.824999999999999	3.4		15.4625	11.3
	5.4125	1.1		15.89375	10.6
	5.2375	2.5		15.968750000000002	17
	5.7749999999999995	5.8		16.6625	18
	4.71875	2.3		15.762500000000001	13.8
	4.8812500000000005	2.1		15.231250000000003	11.9
	5.5375000000000005	0.1		16.38125	17.3
	6.95	4.8		17.05625	12.7
	7.2749999999999995	4.7		17.31875	10.9
May	7.187499999999999	2.8		17.55	20.5
	7.2875000000000005	7.5		18.09375	22
	6.575	13.7		17.2375	30.7
	7.724999999999999	16.1		17.812500000000004	31.9
	7.5625	18.1		19.21875	30.4
	8.6375	4.6		19.375000000000004	12.1
	10.1	3.3		21.19375	18
	10.568750000000001	3.6		18.712499999999995	18.9
	8.98125	9.2		19.962499999999995	12.2
	9.06875	7.7		20.0375	17.4
	10.08125	11.8		21.8125	24.9
	11.875000000000002	11.5		22.818749999999998	27.9
	11.156249999999998	13.8		22.15625	28.5
	12.04375	9.1		21.01875	20.3
	12.512499999999998	7.1		22.51875	26
	12.487500000000002	7		23.793750000000003	20.3
	11.725000000000001	6.3		21.481250000000003	24.3
	10.35625	7.8		21.10625	22.4
	9.556249999999999	7.2		20.4375	24.8
	10.056249999999999	10		20.950000000000003	29.5
	10.918750000000001	10.1		21.631249999999994	31.3
	11.993749999999999	14.2		21.712500000000002	29.7
	11.475	17.5		20.95625	26.9
	11.1125	12.7		21.5875	25.8
	11.48125	12.4		20.787499999999998	29
	11.30625	13.7		21.04375	28.7
	11.81875	20.8		21.912499999999998	30.2
	12.63125	20.6		22.93125	31.2
	13.1625	18.2		22.256249999999998	25.5
	11.262500000000001	15.3		20.462500000000002	31
	10.99375	12		20.28125	20.7
Jun.	11.30625	8.4		22.443749999999998	21.9
	12.518750000000002	10.7		22.618750000000002	23.5
	12.556249999999999	11.5		24.19375	23.1
	13.85625	13.2		24.24375	19.2
	13.94375	12.1		24.043750000000003	22.4
	13.924999999999999	10.5		24.75625	22.8
	14.26875	10.1		25.45625	24.1
	15.04375	13.6		25.056250000000002	20.8
	14.981250000000001	10		24.65	22.7
	15.0375	10.9		23.91875	24.3
	14.637500000000003	12.5		23.6125	21.2
	14.23125	14.8		22.956249999999997	24.7
	13.95	11.9		23.0625	27.6
	14.437500000000002	12.9		23.506249999999998	30.6
	13.618750000000002	13.6		24.318749999999998	32.7
	14.793750000000001	18		25.0375	34.2
	14.887500000000001	23.9		24.63125	37
	13.862500000000002	21.6		24.1875	35.7
	13.80625	21.1		25.14375	33.6
	14.556249999999997	20.5		26.3625	29.7
	16.39375	17.8		27.749999999999996	27.6
	17.11875	15.2		26.899999999999995	28.6
	16.5875	18.1		25.9375	31.2
	15.625	15.5		25.512499999999996	32.5
	15.499999999999998	18.7		24.9625	29.6
	14.862499999999999	18.1		25.6125	28.3
	15.206250000000002	15.9		25.80625	30.1
	15.725	13.7		25.537499999999998	31.4
	15.88125	13.6		25.249999999999996	33.5
	15.700000000000001	20.6		25.91875	37.7
Jul.	15.9125	21.7		26.4125	33.9
	16.868750000000002	16.5		26.2125	27.4
	16.575	13.8		25.4	32.2
	16.137500000000003	17.6		26.8125	30.4
	16.55625	13		26.650000000000002	24.5
	16.737499999999997	9.3		25.9625	28.4
	16.0625	17.3		25.224999999999998	25
	14.85	12.3		24.83125	23.4
	15.874999999999996	9.9		25.950000000000003	25.3
	16.19375	9.7		25.493749999999995	28.9
	15.39375	13		25.018750000000004	27.9
	15.04375	14.1		25.712500000000002	27.6
	16.225	13.7		26.087500000000002	30.7
	16.11875	18.1		25.762500000000003	27.3
	15.8125	15.1		25.20625	28.1
	14.856250000000001	12.3		24.71875	30.6
	14.43125	10.7		24.78125	33.7
	15.243749999999999	17.6		24.581249999999997	31.4
	14.887500000000001	17.7		25.74375	21
	15.956250000000002	14.7		26	26.4
	16.01875	8.6		25.993750000000002	30.4
	15.418750000000003		13.7	25.799999999999997		29.4
	15.518749999999999		17	24.675		26.2
	15.54375		18	24.462500000000002		28.1
	15.29375		19	24.90625		28.2
	15.35		19.6	25.425000000000008		28.3
	15.399999999999999		18.6	24.837500000000002		24.5
	15.34375		13.8	25.2125		22.1
	15.825000000000001		11.4	24.956249999999997		23.2
	14.725000000000001		14.7	24.631250000000005		24.7
	14.843750000000002		15	24.150000000000002		24.1
Aug.	14.93125		14.9	24.662499999999998		25
	14.924999999999999		15.1	25.33125		25
	15.29375		15.6	24.54375		24.6
	14.94375		14.9	23.81875		23.8
	14.43125		14.4	24.512500000000003		24.4
	14.937500000000002		14.8	24.868749999999995		25
	15.10625		15.2	24.05		23.9
	13.899999999999999		14.2	23.375000000000004		23.4
	13.86875		14.1	23.475		23.9
	14.25		14.6	24.381250000000005		24.5
	14.600000000000001		14.8	24.1125		23.9
	14.9625		14.5	24.0625		23.9
	13.781249999999998		14.1	24.393749999999997		24.1
	14.699999999999998		14.2	24.60625		23.9
	14.25625		13.6	24.656249999999996		23.9
	13.93125		13.7	23.8625		23.9
	13.325		13.5	24.5		23.9
	14.112499999999997		13.4	24.643750000000004		24.1
	14.424999999999997		13.8	24.549999999999997		24.3
	14.631250000000001		14.1	24.531249999999996		25
	13.656250000000002		13.7	23.41875		22.9
	13.15			22.743750000000002
	12.375000000000002			22.493750000000002
	13.118749999999999			22.956250000000004
	12.71875			20.993750000000006
	11.525			20.525
	12.4375			22.38125
	12.612499999999999			22.90625
	11.56875			21.062499999999996
	11.137499999999998			21.20625
	11.074999999999998			22.156249999999996
Sep.	10.6125			20.693749999999998
	10.537499999999998			21.09375
	10.83125			22.475
	11.912500000000001			21.818750000000005
	10.7			20.45
	10.46875			21.631250000000005
	11.743749999999999			22.5
	11.1			20.487500000000004
	10.693750000000001			20.93125
	11.11875			20.84375
	11.65			20.4875
	10.975			20.637500000000003
	10.837499999999999			20.325
	10.362499999999999			19.393749999999997
	10.0625			19.156250000000004
	9.69375			17.81875
	8.437499999999998			17.318749999999998
	8.75			17.66875
	8.6			17.749999999999996
	8.625			18.293750000000003
	9.06875			17.66875
	9.71875			18.70625
	9.125			17.4875
	8.056249999999999			16.299999999999997
	7.58125			16.125
	7.037499999999999			16.706250000000004
	7.093750000000001			16.54375
	6.862500000000001			15.35
	7.324999999999998			15.14375
	6.562500000000001			14.318749999999998
Oct.	6.0875			13.98125
	4.55625			13.19375
	4.84375			11.23125
	4.0375			12.5
	4.999999999999999			13.912500000000001
	5.737500000000001			13.787500000000001
	5.64375			12.5125
	4.90625			12.5125
	4.637500000000001			12.874999999999998
	5.275			13.04375
	5.0375			11.6375
	4.1125			10.625000000000002
	3.4937500000000004			10.568750000000001
	2.64375			9.987500000000002
	2.49375			9.125000000000002
	2.85			9.20625
	3.3187500000000005			9.4875
	2.34375			8.80625
	1.5374999999999999			9.6875
	1.8250000000000004			9.06875
	2.3937500000000003			9.64375
	3.3499999999999996			10.550000000000002
	3.962500000000001			11.018749999999999
	2.1375			9.418750000000001
	1.16875			8.2125
	0.8562500000000001			8.906250000000002
	0.48124999999999996			7.34375
	1.1062500000000002			7.943749999999999
	-0.08749999999999995			7.43125
	-1.5375			5.45
	-0.9250000000000002			4.8374999999999995
Nov.	-0.525			5.75
	-0.6374999999999998			6.1
	-0.7937499999999998			5.5687500000000005
	-1.7187499999999998			4.9875
	-1.7187500000000002			4.58125
	-2.1374999999999993			4.29375
	-1.8624999999999998			4.831250000000001
	-2.85			3.9125000000000005
	-2.9			3.9937499999999995
	-1.7125			4.525
	-1.24375			4.0375000000000005
	-0.88125			4.3812500000000005
	-1.2999999999999998			3.7125
	-2.8			2.0375
	-2.9312499999999995			2.7
	-1.6250000000000002			4.03125
	-2.0375			2.6499999999999995
	-2.31875			2.8249999999999997
	-2.6937500000000005			2.8000000000000003
	-2.44375			2.41875
	-2.03125			3.4937500000000004
	-3.2625			1.26875
	-5.1375			-0.9874999999999997
	-4.581249999999999			0.66875
	-3.3312500000000003			1.63125
	-4.006250000000001			0.8625
	-4.3812500000000005			0.6375
	-5.6			0.36874999999999997
	-4.8375			0.33124999999999977
	-5.168749999999999			-0.025000000000000078
Dec.	-5.275000000000001			1.0187499999999998
	-4.71875			0.25625000000000014
	-5.28125			0.2875
	-5.3187500000000005			-0.10624999999999996
	-6.093750000000001			-0.5562499999999999
	-6.087500000000001			-0.45624999999999993
	-4.4312499999999995			0.5312499999999999
	-3.5875000000000004			0.7812499999999998
	-4.6875			0.9187500000000001
	-4.793749999999999			0.48124999999999984
	-4.781249999999999			0.16250000000000003
	-5.656249999999999			-1.075
	-5.20625			0.7937500000000002
	-4.987500000000001			0.7499999999999999
	-5.1187499999999995			0.51875
	-4.56875			-0.45000000000000023
	-5.033333333333333			-0.1866666666666666

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

38°C

Highest Temp

14 Jul. 26

-23°C

Lowest Temp

30 Jan. 26

Seasonal Breakdown

Hottest MonthJuly30.06°C

Coldest MonthJanuary-10.6°C

Wettest MonthAugust9.5mm

Windiest MonthApril28.05km/h

Waterloo Climate Change InsightsSee how climate patterns are evolving over time. Temperature shifts, rainfall trends, and extreme events—all in one place.

Weather City Ranking GloballyExplore Real time of the world’s hottest & Coldest Cities based on current temperature data.

Frequently Asked Questions

1. What is the hottest month in Waterloo historically?

July is historically Waterloo's hottest month, with average maximum temperatures around 26°C. During peak heatwave events, the highest recorded temperatures have reached 38°C on 2026-07-14.

2. What is the coldest month in Waterloo historically?

February is Waterloo's coldest month, with average minimum temperatures around -10°C. The all-time record low of -29°C was recorded on 2015-02-16.

3. What is the average annual rainfall in Waterloo over the past 17 years?

Waterloo's average annual rainfall is approximately 1012.1mm, based on records spanning 17 years.

4. How many rainy days does Waterloo experience on average per year?

Waterloo historically records approximately 198.4 rainy days per year. June has the highest number of rain days at an average of 16.8 days.

5. What is the all-time highest temperature ever recorded in Waterloo?

The all-time highest temperature recorded in Waterloo is 38°C on 2026-07-14.

6. What is the all-time lowest temperature ever recorded in Waterloo?

The all-time lowest temperature recorded in Waterloo is -29°C on 2015-02-16.

7. What is the windiest time of year in Waterloo historically?

Waterloo experiences its strongest winds during February. The historic gust record of 54.7 kph was recorded on 2018-05-04.

8. What is the highest and lowest humidity in Waterloo during a year?

Usually, Waterloo's humidity peaks in January at around 87.9% and drops to its lowest in April at approximately 75.2%.

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Analyse hottest, coldest, windiest & wettest days