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.
	-11.731250000000001	-10.5		-4.874999999999999	-3.1
	-12.100000000000001	-4.9		-4.612500000000001	-1.6
	-11.61875	-5.2		-2.4124999999999996	-1
	-10.731250000000001	-6.7		-3.7875	-1.1
	-11.499999999999998	-2.4		-3.80625	-0.6
	-12.56875	-1		-5.56875	0.8
	-11.187499999999998	-1.1		-3.95	0.9
	-11.7125	-0.4		-2.9625000000000004	1.5
	-11.58125	-0.5		-2.5562500000000004	1
	-10.106250000000003	-4.8		-2.14375	1.5
	-9.2625	-6.5		-0.26249999999999996	1.6
	-10.925	-2.4		-3.5187500000000007	3.6
	-12.250000000000004	-0.6		-4.5125	3.8
	-11.306249999999999	-4.8		-3.28125	1
Jan.	-11.393749999999999	-9.5		-3.1	-2.4
	-11.025	-7.4		-3.0562499999999995	1
	-9.9125	-13.3		-3.1624999999999996	-9.3
	-11.575	-17		-2.25	-8.8
	-13.59375	-19.5		-4.5	-12.6
	-14.706249999999999	-18.9		-6.543749999999999	-6.4
	-15.068750000000001	-9.2		-5.7	-2.6
	-9.58125	-13.9		-3.3625	-7.2
	-10.699999999999998	-23.7		-3.75	-17.3
	-9.75	-19.5		-1.3562500000000002	-15.4
	-9.5125	-17.3		-2.2562500000000005	-9.5
	-11.225	-20.6		-2.4562500000000003	-10.6
	-10.643749999999999	-12.8		-2.2875000000000005	-7
	-10.9	-15.9		-3.4749999999999996	-6.5
	-11.85625	-15.4		-2.8687499999999995	-10.6
	-11.218750000000002	-16		-2.712500000000001	-8.6
	-9.91875	-16.5		-1.8562500000000002	-5.5
	-10.450000000000001	-12.9		-1.9062499999999998	-5.2
	-11.000000000000002	-8.2		-3.3125000000000004	-4
	-11.325000000000001	-9.4		-2.9125	-1.7
	-12.124999999999998	-16.1		-1.6	-5.3
	-12.05	-7.5		-3.6125	2.9
	-11.018750000000002	-3.6		-1.2375	1.3
	-11.262500000000001	-9.5		-2.7437500000000004	-2.9
	-10.637500000000001	-3.6		-4.075	-0.4
	-11.825000000000001	-2.6		-4.343750000000001	3.5
	-13.15	-0.3		-3.7812499999999996	7.5
	-13.131249999999998	-4.2		-3.6374999999999997	2.1
	-11.537500000000001	-0.5		-4.09375	3.3
	-12.61875	-1.3		-3.31875	12.2
	-10.9875	-3.5		-2.23125	9.6
Feb.	-10.062500000000002	3		-1.8062500000000001	10.6
	-10.4625	2.2		-1.6062499999999997	5.7
	-9.75	3.5		-0.79375	7.4
	-10.299999999999997	4.9		0.125	15.4
	-10.0125	-0.5		-0.8687499999999998	6.8
	-7.606249999999999	-3.3		1.8187499999999999	0
	-7.574999999999999	-6.4		1.3375000000000001	-0.8
	-7.19375	-12.3		1.225	-5.9
	-7.143749999999998	-12.8		0.6562499999999999	-3.7
	-8.806249999999999	-7.6		-0.06874999999999998	3.2
	-9.475000000000001	-5.9		-1.1687500000000002	-0.9
	-9.25625	-5.2		1.93125	4.1
	-7.999999999999998	-2.8		2.7	8.6
	-7.8500000000000005	-4.8		2.64375	-1
	-6.725	-6.6		3.2500000000000004	-1.3
	-8.26875	-5.4		1.5187499999999998	3
	-7.6125	0.5		2.6812500000000004	2.5
	-4.925	-2.4		3.625	1.6
	-5.468749999999998	2.2		2.66875	8.8
	-5.187499999999999	3.8		4.3875	15.5
	-4.0249999999999995	1.3		5.20625	16
	-2.38125	1.3		7.1125	15.1
	-0.9375000000000004	4.4		7.1875	19
	-1.6750000000000003	3.1		6.362499999999999	10.4
	-2.6875000000000004	0.6		6.45	8.3
	-3.1812500000000004	-1.6		7.16875	6.9
	-1.375	0.1		9.018749999999999	7
	-0.4125000000000003	-2.4		10.368749999999999	0.5
Mar.	-0.7750000000000001	-2.2		9.05625	4.8
	-0.81875	-12.6		9.26875	-6.8
	0.40625	-12.9		9.60625	-2.9
	-0.42500000000000016	-5.2		8.75625	11
	-1.225	1.4		8.356250000000001	5.3
	-0.08750000000000002	4.6		9.987500000000002	10.7
	-0.07500000000000001	4.3		9.856250000000001	10.1
	-0.21250000000000008	4.8		8.85625	13.5
	0.3562500000000002	0.7		8.24375	9.8
	0.29375000000000007	2.8		7.7562500000000005	15.3
	-0.07500000000000012	3.4		6.9624999999999995	17
	-0.5062499999999999	7		8.531249999999998	15.2
	0.012499999999999872	-1.7		9.031250000000002	6.2
	0.1875	-2.8		10.468749999999998	10.7
	1.3375000000000001	0.6		11.174999999999999	16.7
	1.8687499999999997	4.7		12.431250000000002	22.6
	1.5875	9.2		11.950000000000001	19.9
	0.99375	3.3		11.0875	14.5
	2.2875000000000005	3.1		13.1125	11.4
	2.287499999999999	1.7		11.68125	7.4
	1.7874999999999999	2		12.475000000000001	5.1
	2.20625	0.3		12.725	15.1
	2.6312500000000005	0.8		12.91875	5.4
	2.74375	-1.1		12.856250000000001	10.1
	3.8062499999999995	2.5		13.825	24.6
	3.7562499999999996	2		14.8125	15.9
	3.4249999999999994	3.6		12.8875	13.2
	3.9312499999999995	1.3		14.8875	13.7
	5.025000000000001	9.8		15.243750000000002	24.6
	4.18125	13.9		15.15	24.2
	3.8687499999999995	15.6		13.537500000000001	28.3
Apr.	4.31875	14.2		13.306249999999999	20.7
	3.5437499999999997	10.4		13.987499999999999	24.1
	4.124999999999999	6.5		13.718750000000002	28.9
	4.13125	-0.1		13.537499999999996	11.6
	4.2375	0.2		13.668750000000001	12
	3.80625	-1		13.593749999999998	20.2
	4.03125	9.2		14.849999999999998	29
	4.387500000000001	9.6		14.912500000000001	29.6
	5.781250000000001	14.4		15.3625	25.5
	5.71875	7.6		16.056250000000002	18.9
	5.49375	5.5		15.012500000000003	22.8
	5.212500000000001	8.1		16.825000000000003	24.5
	5.425	9.5		15.737499999999999	20.9
	5.875	7.4		16.181249999999995	18.7
	7.237499999999999	5.3		16.05	15
	7.181250000000001	3.4		15.174999999999999	13.9
	7.1125	2.9		16.21875	12.2
	7.512500000000001	-0.1		16.59375	19.5
	7.593749999999998	8.1		17.1625	26
	7.231250000000001	7.2		19.8125	28.9
	8.86875	4.5		18.95	17.9
	8.5625	1.1		19.212500000000002	11.7
	9.868749999999999	1.1		21.4375	20.5
	10.1875	2.8		19.662499999999998	24.8
	8.9625	7		19.168750000000003	22.9
	9.75	2.8		19.61875	21.5
	9.006250000000001	1.8		19.025	23.7
	8.725	11.2		19.71875	28.9
	9.3	9.3		19.518750000000004	24.5
	9.80625	6.2		20.06875	27.1
May	10.39375	14.2		21.03125	31
	10.212499999999997	15.8		22.131250000000005	30.3
	11.331249999999999	17.3		20.9625	26.7
	10.30625	16.8		20.862499999999997	24.4
	10.406250000000002	8.1		20.68125	16.5
	10.825000000000001	4.4		19.91875	15.5
	11.499999999999998	8.1		19.368750000000002	18.2
	10.787500000000001	9.6		21.93125	21.7
	12.118749999999999	12		22.281250000000004	27.1
	13.737499999999999	9.5		23.268749999999997	29.5
	13.29375	16.5		22.893749999999997	31.2
	12.931250000000002	15.8		22.60625	33.6
	13.118749999999999	17.5		23.475	33.1
	14.043750000000001	17.3		23.462500000000002	31.9
	13.750000000000002	14.4		23.974999999999998	31.1
	14.075000000000001	16.1		24.168750000000003	30.6
	13.26875	14.8		24.750000000000004	27.1
	13.068750000000001	14.4		23.756249999999998	29.6
	13.85	12.3		24.218750000000004	29.3
	14.181249999999999	13.6		25.193749999999998	30.4
	15.250000000000002	15		26.081249999999997	31.5
	15.9625	18.7		26.262500000000003	27.6
	15.18125	20.8		26.08125	33.3
	15.456249999999999	20.2		24.887499999999996	29.8
	14.812499999999998	20.6		24.881249999999998	25.4
	14.731249999999998	18.7		25.4625	31
	15.343750000000002	21.6		25.500000000000004	30.5
	16.4	16.1		26.287499999999998	22.7
	15.8625	13.9		25.912499999999994	27.9
	15.26875	16.6		25.962500000000006	28.1
	16.1	12.5		25.843749999999996	23
Jun.	16.931250000000002	9.8		27.187499999999996	27.1
	16.487499999999997	14.8		27.63125	24.7
	17.693749999999998	13.5		27.887500000000006	24.9
	17.98125	15.2		27.124999999999996	24.4
	17.443749999999998	11.4		27.581250000000004	26.1
	17.518749999999997	11.4		27.531249999999996	26.9
	17.837500000000002	14.9		27.106250000000003	21.8
	17.69375	12.2		27.4375	25.2
	17.55625	14.3		26.393750000000004	27.6
	16.631249999999998	18		25.325000000000003	29
	16.71875	14.5		26.256250000000005	26.6
	17.3125	16.2		25.9	26.5
	16.612500000000004	15.6		26.974999999999998	25.9
	17.131250000000005	19.3		27.175	31
	17.987499999999997	24.3		27.29375	34.5
	18.362499999999997	25.1		27.362499999999997	34.5
	16.668750000000003	24.9		26.28125	34.2
	16.21875	21		26.075000000000003	33.1
	16.55625	20		27.55	29.6
	18.025000000000002	19.9		28.48125	30.2
	19.025	18.2		27.806250000000002	29.9
	18.812500000000004	19.5		28.231250000000003	30
	18.075	18.5		26.924999999999997	31
	17.96875	20.6		26.51875	32.3
	17.2875	18.6		27.531250000000004	28.5
	17.806250000000002	19.6		27.368750000000002	30.9
	18.01875	18.7		27.275	30.6
	18	16.8		27.65625	30.7
	17.793749999999996	17.2		27.593750000000004	32.2
	18.2625	18.8		27.668749999999996	33.5
Jul.	18.499999999999996	19.8		27.749999999999996	33.8
	18.3125	21.7		26.8625	34
	17.768750000000004	21.4		27.750000000000004	34.2
	18.768749999999997	22.2		28.55625	31.2
	19.1375	18.2		29.018749999999997	29.5
	18.943749999999998	19.7		27.556249999999995	33.1
	18.181250000000002	18		27.449999999999996	25.1
	18.575	14.1		28.71875	23.6
	18.5875	12.4		28.53125	26.9
	18.33125	17.1		27.675	27.3
	17.937499999999996	20.2		28.03125	30.4
	19.062499999999996	21.9		28.18125	36.6
	19.05625	24.1		27.91875	37.3
	17.775	21.2		27.375000000000004	31
	16.6875	18.6		26.45625	30.6
	17.0125	17.4		25.956250000000004	31.1
	16.71875	18.2		27.381249999999998	24.7
	16.83125	17.2		27.993750000000002	27.7
	17.6375	16.5		27.925	28.6
	17.343749999999996	16		27.7625	29.8
	16.5875	18.4		27.474999999999998	26.7
	17.249999999999996	16.4		27.65	21.7
	17.35625	15.5		27.012500000000003	27.8
	17.24375	18.7		26.806250000000002	28.1
	17.21875	15.2		26.7625	27.5
	17.3625	17.3		26.925000000000004	29.1
	17.0875	20.3		26.912500000000005	31.5
	17.35	21.6		26.81875	31.8
	16.456249999999997	24.1		26.575000000000003	29.6
	16.2875	21		26.175000000000004	26.3
	16.193749999999998	20.9		26	24.6
Aug.	15.6125	21.5		25.656249999999996	28.4
	16.5875	18.1		27.243750000000006	27.2
	16.425		9	26.337500000000002		28.8
	16.1		6.6	26.743750000000002		11.1
	15.843749999999998		6.9	26.924999999999997		9.6
	17.2125		7	26.83125		8.9
	16.943750000000005		8.4	26.6625		9
	15.043750000000001		8.9	26.64375		9.1
	16.03125		8.9	27.562500000000007		9.9
	16.6625		8.3	27.75625		10
	16.81875		16.7	27.743749999999995		27.4
	16.53125		16.6	27.631249999999994		27.3
	17.318749999999998		17	28.06875		27.4
	16.9625		16.8	27.075000000000003		27.1
	16.95625		16.6	28.13125		27.2
	16.762500000000003		15.8	26.66875		25.9
	16.325		15.4	26.650000000000006		25.9
	16.493750000000002		15.7	26.756249999999994		25.7
	16.106249999999996		15.4	26.3125		26.6
	14.99375		15	26.031250000000004		25.6
	14.94375		14.6	25.593749999999996		25.9
	14.143749999999999		14.7	25.318749999999998		25.5
	14.4875		14.1	25.4125		25.3
	13.600000000000001		13	24.95625		23.5
	13.275		12.5	23.64375		23.6
	12.918750000000003		13.3	25.175		25.1
	13.706249999999997		13.4	24.543750000000003		24.6
	12.712500000000004		13.2	23.712500000000002		24.8
	12.9875		13.6	24.3625		24.7
	12.824999999999998		12.5	24.962500000000002		24
	12.793750000000001		12.5	24.650000000000002		25.1
Sep.	14.256250000000003		14.6	25.14375		25.6
	14.375000000000002		14.6	25.106250000000003		24.9
	14.125000000000002			24.431250000000002
	13.687500000000002			23.643749999999997
	14.174999999999999			24.706249999999994
	14.7125			25.8375
	13.2125			23.025
	12.306249999999999			22.9375
	12.481250000000001			21.99375
	12.112499999999999			22.874999999999996
	11.8375			22.212500000000002
	11.425			22.8625
	11.687499999999998			23.16875
	10.493750000000002			21.84375
	10.3			21.78125
	10.91875			22.375
	11.256250000000001			21.968749999999996
	10.749999999999998			21.031249999999996
	10.012500000000001			21.456249999999997
	9.15625			19.84375
	9.3375			19.90625
	9.45625			18.781250000000004
	9.19375			18.96875
	8.675			20.85
	8.937500000000002			20.46875
	8.95			20.30625
	7.96875			18.98125
	8.687500000000002			18.3
	7.56875			15.881250000000001
	6.41875			15.168750000000001
Oct.	6.29375			14.6125
	5.6625000000000005			15.112499999999997
	5.550000000000001			16
	6.181249999999999			16.9375
	6.15625			15.66875
	6.01875			16.76875
	5.65625			14.7875
	4.8812500000000005			15.71875
	7.2875			16.675
	6.6			14.850000000000001
	5.61875			14.7125
	4.9625			13.868749999999997
	3.5937499999999996			12.000000000000002
	2.3312500000000003			9.2875
	1.9062500000000002			11.812499999999998
	4.1875			12.20625
	2.7124999999999995			10.181249999999999
	1.59375			12.01875
	2.6374999999999997			12.5875
	3.5437499999999997			12.762500000000001
	4.268749999999999			12.318750000000001
	3.475			12.068749999999998
	3.2875			12.09375
	1.9			10.162500000000001
	1.8937499999999998			10.356250000000001
	2.09375			11.33125
	0.5562500000000001			9.95625
	-0.21249999999999986			8.8
	-2.1187499999999995			5.6312500000000005
	-2.7125			6.2
	-1.1500000000000001			7.40625
Nov.	-0.09374999999999997			8.71875
	0.54375			7.799999999999999
	-0.75625			6.3875
	-1.7374999999999998			6.162500000000001
	-1.9249999999999998			7.18125
	-0.5187499999999996			6.524999999999999
	-3.1312499999999996			6.23125
	-4.00625			5.5249999999999995
	-2.0187500000000003			5.7625
	-2.125			6.112499999999999
	-2.1562499999999996			4.4125000000000005
	-2.8000000000000003			4.24375
	-4.862499999999999			2.4000000000000004
	-4.681249999999999			2.83125
	-3.03125			4.60625
	-3.625			3.412499999999999
	-3.7375000000000003			2.0937500000000004
	-3.84375			3.4375
	-3.73125			2.8
	-3.4000000000000004			4.1625000000000005
	-4.125			2.66875
	-6.987500000000002			-0.6937499999999999
	-6.60625			0.54375
	-4.375000000000001			2.2
	-5.6812499999999995			1.6375
	-5.25			0.9375000000000001
	-6.00625			0.9812500000000001
	-6.68125			0.5687500000000001
	-6.18125			0.7062499999999998
	-6.26875			1.7437500000000004
Dec.	-5.10625			1.625
	-5.0375			0.9875
	-6.0625			-0.018749999999999836
	-8.3875			-1.0437500000000002
	-7.5249999999999995			-0.26874999999999993
	-6.118749999999999			0.8999999999999999
	-5.33125			1.2125000000000001
	-6.681250000000001			0.5187499999999999
	-6.3875			7.632783294297951e-17
	-5.8374999999999995			0.5937499999999999
	-6.11875			0.23125
	-6.45			-0.23125
	-7.40625			0.6375000000000001
	-6.118749999999999			-0.13749999999999996
	-7.6625000000000005			0.2937500000000002
	-8.368750000000002			-2.5625
	-9.833333333333334			-2.1866666666666665

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

37°C

Highest Temp

27 Jul. 26

-24°C

Lowest Temp

23 Jan. 26

Seasonal Breakdown

Hottest MonthJuly30.87°C

Coldest MonthJanuary-10.26°C

Wettest MonthJuly9.1mm

Windiest MonthMarch28.9km/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 28°C. During peak heatwave events, the highest recorded temperatures have reached 40°C on 2023-08-23.

2. What is the coldest month in Waterloo historically?

January is Waterloo's coldest month, with average minimum temperatures around -11°C. The all-time record low of -36°C was recorded on 2019-01-31.

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

Waterloo's average annual rainfall is approximately 1184.4mm, based on records spanning 17 years.

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

Waterloo historically records approximately 161.1 rainy days per year. June has the highest number of rain days at an average of 17.4 days.

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

The all-time highest temperature recorded in Waterloo is 40°C on 2023-08-23.

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

The all-time lowest temperature recorded in Waterloo is -36°C on 2019-01-31.

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

Waterloo experiences its strongest winds during April. The historic gust record of 60.4 kph was recorded on 2019-02-24.

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

Usually, Waterloo's humidity peaks in January at around 84.7% and drops to its lowest in October at approximately 66.8%.

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