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

Sarnia Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	-5.206249999999999	-11.5		-0.03749999999999998	-6.9
	-5.831250000000001	-8.4		-1.1125000000000003	-4.2
	-5.281250000000001	-10		-1.2874999999999994	-3.8
	-5.843749999999998	-6.2		-0.2499999999999999	-2.8
	-6.481249999999999	-4.1		-2.0062499999999996	0.1
	-6.5	-1.9		-1.7187500000000002	2.2
	-7.71875	0.2		-2.2687499999999994	1.3
	-6.487500000000001	0.8		-1.5	2.8
	-6.262499999999999	2.3		-0.14375000000000013	8.3
	-5.481249999999998	-0.1		0.40624999999999983	0.8
	-3.91875	-2.5		1.4937500000000001	0.2
	-4.168749999999999	-2.5		1.6499999999999997	2.7
	-6.4750000000000005	-1.3		-1.2624999999999995	2.4
	-7.987500000000001	-8.5		-2.1125	1.7
Jan.	-7.43125	-10.8		-1.9625	-9
	-7.5687500000000005	-9.4		-1.39375	-1.2
	-7.425000000000001	-6		-0.41250000000000014	-0.1
	-5.550000000000002	-11.6		-0.9874999999999998	-7.4
	-6.80625	-13.8		-1.25	-8.5
	-8.58125	-19.2		-3.575	-8.7
	-9.625000000000002	-11.7		-3.6000000000000005	-2.1
	-8.76875	-11.4		-2.4875000000000003	-4.5
	-6.918749999999999	-17.2		-1.2625	-7.4
	-6.26875	-19.9		-1.35	-13.4
	-6.106250000000002	-14.1		-0.6125	-8.6
	-5.8687499999999995	-13.1		-1.3187499999999999	-8.9
	-6.812499999999999	-14.6		-1.2812499999999996	-8.8
	-7.3875	-14.9		-1.4124999999999999	-9.2
	-8.249999999999998	-16.8		-2.0562500000000004	-8.6
	-9.387500000000001	-16.8		-2.3125	-10.1
	-7.81875	-14.7		-1.3812500000000003	-8.2
	-7.581250000000001	-16.1		-1.0375	-4.5
	-7.61875	-19		-1.4562499999999996	-4.7
	-7.16875	-11.5		-1.0875	-5.3
	-7.968750000000002	-14.6		-0.98125	-6.3
	-7.78125	-12.6		-1.6875000000000004	-5.1
	-7.46875	-11.8		-1.3999999999999997	-0.8
	-6.5625	-17.8		0.3250000000000004	-8.9
	-8.331249999999999	-14.5		-1.5187499999999998	-7.8
	-7.41875	-16.3		-1.5062499999999999	-6.1
	-8.60625	-7.8		-2.2437499999999995	0.1
	-8.075000000000001	-5.4		-1.9812500000000002	-1.7
	-8.90625	-8.7		-1.5937499999999998	-2.5
	-9.093750000000002	-6.7		-2.2499999999999996	0.3
	-8.356250000000001	-3.7		-0.79375	-1.3
Feb.	-7.4375	-3.8		-1.3562500000000002	-0.5
	-6.95	-2.4		-1.2375	0.6
	-9	0.2		-1.475	1.5
	-7.818749999999998	0.5		0.20625000000000004	2.9
	-7.099999999999999	0		0.275	2.6
	-6.874999999999999	0.9		1.1812500000000001	4.9
	-5.074999999999999	-1.1		2.0375	1
	-3.906250000000001	-1.9		1.6812499999999997	0.8
	-5.487500000000001	-6.8		2.1562499999999996	-2.1
	-5.118749999999999	-9.8		1.6625	-2.6
	-6.1937500000000005	-4.5		0.8250000000000002	-0.7
	-6.931250000000001	-10		0.11249999999999988	2
	-4.4937499999999995	-3.3		1.9812499999999997	9.6
	-5.375	-4.2		2.74375	3.8
	-5.8125	-5.9		1.85	-4.1
	-6.53125	-13.5		-0.10625000000000001	-0.1
	-5.712500000000001	-6.2		0.46874999999999967	0.4
	-6.106249999999999	-7.3		1	1.7
	-5.5375	-1.5		1.5812499999999998	0.5
	-5.562499999999998	0		2.0999999999999996	2.9
	-4.21875	4.9		1.9875000000000003	11.5
	-3.3750000000000004	1		4.6625	7.1
	-1.98125	1.9		6.437499999999999	10.4
	-0.07500000000000008	0.7		7.093749999999999	5.9
	-1.3875	-0.1		5.175000000000001	11.2
	-3.2375	-5.3		4.3	4.5
	-2.6812500000000004	-0.3		5.081250000000001	4
	-1.05	-2.8		5.949999999999999	1
Mar.	-0.95	-1.5		6.10625	8.3
	-1.5874999999999997	-4.4		6.18125	8.2
	-1.6437499999999998	-7.9		7.174999999999999	-3.8
	-0.5437500000000002	-4.9		7.475	0.6
	-0.5125000000000002	-0.7		6.73125	3.3
	-0.9812500000000001	-0.8		7.143749999999999	5.9
	-1.175	0.9		7.243750000000001	4.2
	-1.4499999999999997	0.6		4.5875	3.9
	-1.71875	-0.4		5.156250000000001	1
	-0.94375	-2.2		6.737500000000001	4.7
	-0.9875	-0.4		5.55625	6.9
	-1.8375000000000001	4.1		5.5125	10.7
	-1.7999999999999996	-4.1		5.593750000000001	1.5
	-1.1812499999999997	-3.9		6.4875	4.4
	-0.6437499999999999	0.5		6.6812499999999995	6.5
	-0.05624999999999991	4.2		8.049999999999999	9.5
	-0.1937500000000002	8.5		8.575	14.4
	-0.15000000000000008	-0.2		6.837500000000002	2.4
	0.3999999999999999	2		8.487499999999999	7.7
	1.2687499999999998	3.7		8.58125	12.8
	0.9125000000000002	3		8.03125	14.2
	1.425	2.6		8.3125	4.2
	0.9312499999999999	0.2		8.2875	3.6
	1.2124999999999997	-3.8		9.44375	-1.8
	1.475	-3.9		10.36875	9.4
	2.4	3.9		10.968750000000002	17.5
	3.1875	2.8		11.73125	4.3
	2.8625	2.8		11.38125	5.9
	3.6437500000000003	3.6		13.143749999999999	17.7
	4.225	5.1		12.725000000000003	20.3
	3.0312499999999996	5.1		12.037499999999998	19.5
Apr.	3.125	6		12.23125	17
	3.1437500000000003	8.4		11.356250000000003	19.5
	2.4375	4.8		10.0375	13.5
	3.0374999999999996	5.3		11.068750000000001	13.4
	2.8249999999999997	0.5		12.287500000000001	7.4
	2.9	-0.5		10.799999999999999	4.3
	3.5375000000000005	2.5		12.7125	17.2
	2.5375	4.6		10.506250000000001	6.7
	2.98125	4.1		13.481250000000001	20
	4.84375	7.9		12.39375	18.4
	3.88125	5.4		11.65625	7.5
	3.4187499999999997	2.5		11.8	9.3
	3.69375	5.5		12.36875	17.8
	4.24375	9.1		12.849999999999998	13.8
	4.74375	5		12.725	7.2
	5.3062499999999995	5.7		13.66875	8.9
	7.262499999999999	4.4		16.5125	7.2
	8.09375	2.9		15.581249999999999	7.6
	7.16875	3.7		14.10625	13.6
	6.9437500000000005	8.6		15.11875	20.8
	6.481249999999999	6.8		15.01875	12.3
	6.5062500000000005	5.5		14.681250000000004	8.2
	5.987500000000001	5.4		14.600000000000001	8.8
	6.243750000000001	5.4		15.750000000000002	13.3
	6.856249999999998	8.1		16.575	17.7
	5.725	5.4		15.49375	11
	6.675000000000001	6		14.84375	8.1
	7.2875000000000005	4.8		16.08125	14.7
	8.018749999999999	7.7		17.193749999999998	11.1
	8.2125	7.7		17.349999999999998	12.3
May	8.03125	6.3		18.168750000000003	19.1
	8.38125	10.4		17.943749999999998	22.7
	8.293750000000001	10		16.668750000000003	15.3
	9.318750000000001	15		18.406250000000004	25.8
	9.425	14.8		19.418749999999996	24.2
	10.14375	5.4		19.525000000000002	9.8
	11.125	6.4		20.925	11.3
	11.20625	9.5		18.94375	15.2
	10.00625	11.6		19.231250000000003	12.2
	9.768749999999999	10.9		19.31875	11.9
	11.700000000000001	11.1		21.793749999999996	21.8
	12.799999999999997	12.1		22.14375	24.8
	11.6125	12.4		21.025000000000002	14.8
	12.275000000000002	11.3		21.09375	14.5
	13.631249999999998	7.3		21.943749999999998	24.1
	13.58125	11.5		23.343749999999996	15
	13.66875	10.3		22.28125	18.7
	11.725	12.5		21.00625	16.8
	10.8875	13.4		20.2875	16.7
	11.581249999999999	12.2		22.04375	17.6
	12.581249999999999	14.6		22.693749999999998	27
	12.606250000000001	16.3		21.20625	25.9
	12.206249999999999	16.7		20.325000000000003	21.4
	12.825000000000001	14.2		21.28125	18.1
	12.818750000000001	14		20.537499999999998	24.5
	12.5625	18.4		21.931250000000002	25.8
	13.33125	19.5		22.99375	24.2
	14.312499999999998	20.3		23.706249999999997	26.8
	14.71875	19.1		22.937499999999996	23.9
	13.00625	18.5		20.1125	26.6
	12.65625	13.7		20.224999999999998	17.2
Jun.	12.943750000000001	11.1		22.31875	21.9
	14.731250000000001	15.5		22.775	22.3
	14.65625	14.9		24.725	22.7
	15.19375	16.2		24.39375	18.6
	14.94375	15.2		23.662499999999994	21.1
	15.631249999999996	14.7		24.70625	19.1
	16.125	13.6		25.4625	20.6
	16.7875	15.2		25.743750000000006	20.6
	16.831249999999997	14.1		25.05	19.9
	16.174999999999997	13.3		24.618750000000002	21.5
	15.568749999999996	16.3		23.718750000000004	21.3
	16.150000000000002	15.9		24.481250000000003	20.8
	16.018749999999997	15.6		24.11875	20.6
	16.006249999999998	17.6		24.55625	21.5
	16.18125	18.3		24.85625	27.2
	16.95625	21.6		25.906250000000004	30.6
	16.825000000000003	23.8		25.1	31.2
	16.156249999999996	23.8		24.462500000000002	32.2
	15.612499999999999	23		24.874999999999996	30.4
	16.9875	20.8		27.01875	26.7
	18.368750000000002	20.3		28.549999999999997	23.1
	18.60625	20.9		26.706250000000004	23.6
	18	20.3		25.575000000000006	24.7
	17.468750000000004	17.4		24.95625	26.5
	17.225	20.9		25.100000000000005	27.6
	16.881249999999998	21.1		25.712499999999995	24.8
	17.499999999999996	21.5		25.90625	26.9
	17.79375	20.3		25.531250000000004	26.8
	18.15	15.5		26.0375	34.9
	18.13125	23.2		26.35	33.4
Jul.	18.2375	24.5		26.874999999999996	27.8
	18.275	21.1		26.662499999999998	27.6
	18.4375	19.1		26.0125	27.9
	18.275	22		27.237499999999997	29.8
	18.9375	20.1		27.03125	23.3
	19	16		27.2	27.5
	18.349999999999998	20.3		25.65	28.4
	17.393749999999997	15.7		25.381249999999998	22.9
	18.131249999999998	15.4		26.6375	25
	18.168750000000003	16.1		26.21875	26
	17.65625	17.8		25.018750000000008	26.7
	17.737500000000004	20.2		26.287500000000005	26.6
	18.24375	20.1		26.39375	28.6
	18.074999999999996	20.8		26.55625	23.9
	17.48125	19.9		25.2875	25.2
	17.150000000000002	20.1		24.84375	25.5
	17.10625	19.8		25.3375	27.6
	17.706249999999997	22.6		25.40625	26.2
	17.39375	20.3		26.256249999999998	23.1
	17.65	18.1		26.931249999999995	24.8
	17.9125	15.9		25.96875	26.8
	17.4875	17.5		26.137500000000003	27.2
	17.84375	21.3		25.618750000000002	26.2
	17.593749999999996	21.7		25.275000000000002	26.7
	17.293750000000003	22.6		25.525	28.6
	17.556250000000002	19.2		26.612500000000004	27.4
	17.593749999999996	21		25.74375	26.7
	17.59375		22.1	25.88125		27.4
	18.1625		17.9	25.937500000000004		27.8
	16.91875		18.2	25.0875		24.7
	17.34375		17.1	24.268749999999997		21.9
Aug.	17.04375		14.5	24.875000000000004		24
	16.8125		16.5	25.85625		28.7
	17.9125		16.8	25.437500000000004		22.1
	17.2625		14.6	25.250000000000004		28.3
	17.10625		17.1	25.268749999999997		25.2
	17.56875		17.7	25.78125		25.7
	17.51875		17.3	25.0875		25.3
	16.331249999999997		16.5	23.54375		23.4
	15.912500000000001		16.3	24.449999999999996		24.6
	16.35		16.8	25.525000000000002		25.4
	16.756249999999998		17.2	24.875000000000004		24.6
	17.018749999999997		17	24.562499999999996		24.4
	16.8625		17.2	25.243750000000002		25
	17.35		16.9	25.59375		24.3
	17.0375		16.6	25.468750000000004		24.7
	16.781250000000004		16.5	24.993750000000006		24.5
	16.13125		16.3	24.80625		23.7
	16.44375		16.2	25.04375		24.1
	16.86875		16.6	24.974999999999998		24.5
	16.625		16.2	25.58750000000001		25.9
	16.012500000000003		16.1	24.6625		24
	15.206249999999999		15.5	23.91875		23.9
	14.437500000000002		14.9	23.156250000000004		23
	15.356250000000001		15.5	23.4125		23.2
	14.618749999999999		14.2	21.774999999999995		21.2
	13.274999999999997		14	21.381249999999998		21.8
	14.675		14.7	23.3125		22.8
	14.81875			22.731250000000003
	13.925			21.85
	13.243749999999999			22.324999999999996
	13.650000000000002			22.912499999999998
Sep.	13.237499999999999			21.287499999999998
	13.15			22.3875
	13.506250000000001			23.187499999999996
	13.943750000000003			21.474999999999998
	13.268749999999999			20.975000000000005
	13.325000000000001			22.931249999999995
	14.25625			24.087500000000002
	13.21875			21.225
	12.525			21.312499999999996
	12.731250000000001			21.41875
	13.95			21.243750000000002
	13.025			21.149999999999995
	12.924999999999999			20.943749999999998
	12.80625			19.543749999999996
	11.868750000000002			19.093749999999996
	11.137500000000003			18.125
	11.0125			18.125
	10.881250000000001			18.83125
	10.975000000000001			19.081249999999997
	11.09375			19.5375
	11.306249999999999			19.30625
	11.943749999999996			19.918750000000006
	11.050000000000002			18.40625
	10.200000000000001			18.312499999999996
	9.956249999999999			17.924999999999997
	9.562500000000002			17.987499999999997
	9.38125			18.2625
	9			16.85
	9.43125			16.61875
	8.843750000000002			15.131250000000003
Oct.	8.5			14.999999999999998
	7.374999999999999			14.256249999999998
	6.9125			12.818749999999998
	6.762500000000001			14.075
	7.3			14.91875
	7.137500000000001			14.94375
	7.49375			14.09375
	6.95			14.056250000000002
	6.73125			13.875
	7.43125			14.95
	7.387499999999999			12.93125
	6.51875			13.075000000000001
	5.9624999999999995			12.387500000000001
	5.300000000000001			11.856250000000001
	4.612500000000001			10.75
	5.06875			11.16875
	5.3687499999999995			10.725
	3.9562500000000003			10.25625
	3.8312500000000007			11.1375
	3.60625			10.381250000000001
	4.9437500000000005			11.2875
	6.15			12.131250000000001
	5.85625			12.43125
	4.21875			10.181249999999999
	3.8125			9.36875
	3.0562500000000004			10.5
	2.8562499999999997			8.774999999999999
	3.14375			9.862499999999999
	1.89375			8.48125
	0.33125			6.18125
	0.5499999999999999			6.1499999999999995
Nov.	1.3875			7.08125
	1.4875000000000003			7.4624999999999995
	1.31875			7.2125
	1.0125			6.26875
	1.457167719820518e-16			6.4750000000000005
	-0.012499999999999983			6.418749999999999
	0.30000000000000004			6.2375
	-0.3875000000000002			5.2749999999999995
	-0.5437500000000001			5.399999999999999
	0.1625000000000001			6.074999999999999
	0.55625			5.825
	0.6749999999999999			5.53125
	-0.31875			4.831250000000001
	-1.2937500000000002			2.8124999999999996
	-0.9375			4.09375
	0.01874999999999999			5.83125
	-0.7999999999999999			3.9874999999999994
	-0.30625			4.5062500000000005
	-0.65			4.18125
	-0.3999999999999999			4.3374999999999995
	-0.7874999999999999			4.768750000000002
	-1.7687499999999998			2.66875
	-2.7687500000000003			0.54375
	-2.3			2.2562500000000005
	-1.5187500000000003			2.8875
	-2.7312499999999997			2.26875
	-2.818749999999999			2.05
	-3.7875000000000005			1.6687500000000002
	-3.16875			1.9
	-3.29375			1.7749999999999995
Dec.	-3.387500000000001			2.7375000000000003
	-2.39375			1.9249999999999998
	-2.5999999999999996			1.93125
	-3.25625			0.8062499999999999
	-3.65			0.68125
	-3.4999999999999996			0.7562500000000001
	-2.55625			2.14375
	-1.88125			2.35
	-2.5562500000000004			2.3249999999999993
	-2.9937500000000004			2.2749999999999995
	-3.3062499999999995			1.7625000000000004
	-2.7687500000000003			0.875
	-2.4312499999999995			2.75625
	-3.4125			2
	-3.4562500000000003			2.1375
	-2.8249999999999997			0.9062499999999999
	-3.2666666666666666			0.7866666666666666

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

35°C

Highest Temp

13 Jul. 26

-20°C

Lowest Temp

24 Jan. 26

Seasonal Breakdown

Hottest MonthJuly27.2°C

Coldest MonthJanuary-9.35°C

Wettest MonthMarch6.54mm

Windiest MonthMarch29.95km/h

Sarnia 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 Sarnia historically?

July is historically Sarnia's hottest month, with average maximum temperatures around 26°C. During peak heatwave events, the highest recorded temperatures have reached 35°C on 2026-07-13.

2. What is the coldest month in Sarnia historically?

February is Sarnia's coldest month, with average minimum temperatures around -7°C. The all-time record low of -26°C was recorded on 2015-02-20.

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

Sarnia's average annual rainfall is approximately 986.5mm, based on records spanning 17 years.

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

Sarnia historically records approximately 193.5 rainy days per year. June has the highest number of rain days at an average of 16.2 days.

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

The all-time highest temperature recorded in Sarnia is 35°C on 2026-07-13.

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

The all-time lowest temperature recorded in Sarnia is -26°C on 2015-02-20.

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

Sarnia experiences its strongest winds during January. The historic gust record of 58.7 kph was recorded on 2026-03-13.

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

Usually, Sarnia's humidity peaks in February at around 84.7% and drops to its lowest in October at approximately 75.06%.

Recent Blogs On Weather

See all blogs

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

Sarnia Weather Trend Graph

Yearly Summary 2026

Seasonal Breakdown

Frequently Asked Questions

Recent Blogs On Weather

World Top 10 Hottest Cities Are All in India Again - May 2026

Delhi Air Quality 2026 vs 6-Year Historical PM2.5 Data

What 17 Years of Delhi Temperature Data Reveal About May's Heatwave Escalation

World Top Hottest Cities Belong to India - April 2026

Construction Air Pollution: The Invisible Hazard Reshaping India's Urban Air

Kitchen Air Pollution: How Cooking Can Spike Your Indoor AQI

Mumbai Air Quality Comparison of 2025 Vs 2026 (Jan-Feb)

Why AQI Standards Vary Across the World - And Why Air Quality Index Matters More Than Ever

Why Winter Suffocates and Monsoon Saves Delhi Air Quality 2025?

Winter vs Summer Air: Why Air Pollution Behaves So Differently Across Seasons

Sarnia Historic Weather RecordsAnalyse hottest, coldest, windiest & wettest days

Sarnia Weather Trend Graph

Yearly Summary 2026

Seasonal Breakdown

Frequently Asked Questions

Recent Blogs On Weather

World Top 10 Hottest Cities Are All in India Again - May 2026

Delhi Air Quality 2026 vs 6-Year Historical PM2.5 Data

What 17 Years of Delhi Temperature Data Reveal About May's Heatwave Escalation

World Top Hottest Cities Belong to India - April 2026

Construction Air Pollution: The Invisible Hazard Reshaping India's Urban Air

Kitchen Air Pollution: How Cooking Can Spike Your Indoor AQI

Mumbai Air Quality Comparison of 2025 Vs 2026 (Jan-Feb)

Why AQI Standards Vary Across the World - And Why Air Quality Index Matters More Than Ever

Why Winter Suffocates and Monsoon Saves Delhi Air Quality 2025?

Winter vs Summer Air: Why Air Pollution Behaves So Differently Across Seasons

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