Winthrop Harbor Historic Weather Records
Analyse hottest, coldest, windiest & wettest days

Winthrop Harbor Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	-6.7749999999999995	-11.4		-0.9749999999999998	-5.6
	-7.074999999999999	-7.1		-1.9562500000000005	-2.1
	-6.749999999999999	-7		-1.4750000000000003	-1.8
	-7.46875	-7.8		-1.3749999999999998	-2.2
	-8.049999999999999	-2.8		-1.7875	0.6
	-7.849999999999999	-0.2		-3.2624999999999997	2.2
	-7.893750000000001	-0.4		-2.38125	1.7
	-7.41875	1.3		-1.43125	6.3
	-6.85625	2		-0.34999999999999987	11.9
	-6.018750000000001	-2.7		0.24374999999999986	1.8
	-5.0875	-5.6		1.7	0.8
	-5.29375	-1.6		-0.11875000000000008	4.2
	-7.7375	0		-2.1062500000000006	4.8
	-7.90625	-6.5		-2.61875	1.7
Jan.	-7.624999999999999	-9.6		-2.16875	-5.6
	-7.15	-5.1		-1.35625	1.9
	-7.199999999999998	-8.8		-1.475	-3.3
	-7.25625	-14.1		-1.2875	-9.1
	-8.843749999999998	-17.6		-2.29375	-9.8
	-9.256250000000001	-18.6		-3.90625	-5.7
	-9.393749999999999	-6.6		-3.8125	-3.3
	-7.6625000000000005	-11.8		-1.7000000000000004	-6
	-6.812500000000002	-22		-1.7875000000000003	-14.3
	-6.6625	-22.1		-0.9000000000000001	-11.8
	-6.11875	-13.3		-1.0999999999999999	-7.1
	-7.312499999999998	-18.1		-1.78125	-11
	-7.36875	-14.8		-1.6437500000000005	-11
	-7.293750000000001	-16.6		-1.8187499999999999	-6.4
	-8.268749999999999	-16.8		-1.66875	-9.5
	-7.8375	-14.3		-1.5375	-8.5
	-6.4125	-14.3		-1.2812499999999996	-5.4
	-6.768749999999999	-15.1		-0.5812499999999999	-4.3
	-7.231250000000001	-9		-0.8624999999999999	-3.8
	-7.512499999999998	-9.9		-2.15	-4.9
	-7.18125	-14		-0.6000000000000001	-3.3
	-7.425	-10.2		-2.3187500000000005	-1.8
	-6.818750000000001	-7.7		-0.7062499999999998	3
	-6.731250000000001	-13.9		-0.70625	-5.4
	-7.85625	-7.6		-2.075	-3.7
	-7.837500000000001	-5		-2.66875	0.6
	-8.4625	-2.3		-2.55625	1.6
	-8.268749999999999	-3.8		-1.8375000000000004	0.8
	-8.16875	-4.8		-2.10625	-0.1
	-8.9	-4.7		-1.9937500000000001	6.2
	-8.1	-2.8		-1.0437499999999997	0.2
Feb.	-7.0875	-2.1		-0.5687500000000003	5.3
	-6.218749999999999	-0.9		-0.7374999999999998	3.2
	-7.15	1.9		-0.7562500000000002	4.3
	-6.975	4.1		0.8375000000000001	13.9
	-6.549999999999999	2.4		0.23750000000000004	6.5
	-5.6625	0.7		2.29375	5.5
	-3.9250000000000003	-2.3		1.8499999999999999	3.6
	-3.8000000000000003	-6		2.3249999999999997	-3.1
	-4.4375	-7.7		1.8375	-1.3
	-5.168749999999999	-5.1		1.1	1.2
	-6.168749999999999	-4.9		0	0.4
	-5.993750000000001	-7.2		1.3687500000000001	4.7
	-3.2749999999999995	-0.3		3.23125	8.7
	-4.7749999999999995	-3.1		3.7687500000000003	2.9
	-4.843749999999999	-4.2		2.8375000000000004	-2.3
	-5.3687499999999995	-3.2		1.3937500000000003	4.3
	-5.1937500000000005	1.1		1.38125	2
	-4.1125	-1.3		2.2875	2.3
	-3.4375000000000004	1.7		3.15625	2.8
	-3.3812499999999996	2.3		3.8187499999999996	15.1
	-2.70625	2.8		3.9250000000000003	16
	-1.1687499999999997	0.7		5.78125	13.3
	0.1562499999999999	6		6.824999999999999	18.6
	0.9812500000000001	3.4		6.450000000000001	14.6
	-0.66875	1		5.45	3.6
	-1.7062499999999998	-1.5		5.224999999999999	7.3
	-0.46249999999999997	1.4		6.775	5.1
	0.45000000000000007	-2.1		7.51875	0.9
Mar.	0.15625000000000006	0.5		6.281250000000001	9.9
	-0.48750000000000004	-7.3		6.4625	-0.6
	0.08750000000000013	-10.1		7.424999999999999	-3.5
	0.69375	-4.7		6.8374999999999995	7.3
	-0.08124999999999996	-0.1		5.6625	7.2
	0.6875000000000001	2.8		7.00625	8.4
	0.66875	2		8.1375	6.6
	0.44375	1.8		5.556250000000001	12.3
	-0.024999999999999953	-1.8		5.8125	2.2
	0.36875	-1.9		5.74375	7.4
	-0.10624999999999997	2.9		4.5	14.4
	-1.1562499999999998	6.1		5.4875	14.4
	-0.06249999999999986	-1.6		6.243749999999999	1.2
	0.4375	-3.1		7.6375	8.4
	0.65	2.9		7.5625	10.6
	0.89375	6.6		8.831249999999999	17
	2.125	9.1		8.887500000000001	16.5
	0.7749999999999997	1.5		7.706250000000002	3.9
	2.325	1.9		8.83125	20.4
	2.2749999999999995	3.3		8.5625	8.5
	2.29375	3.5		10.5375	11.6
	2.4624999999999995	1.1		8.6625	14.1
	2.3812499999999996	0.7		9.5375	9
	2.5687499999999996	-2.3		7.937500000000001	2.8
	2.8812499999999996	-0.8		9.325000000000001	23.5
	3.5562500000000004	6.3		11.2125	23.3
	3.7874999999999996	3.8		10.83125	10.6
	3.9124999999999996	0.1		11.20625	13.5
	4.6875	7.3		12.38125	28.7
	4.781249999999999	14.3		11.631250000000001	27.6
	3.69375	12.1		10.743749999999999	29.3
Apr.	4.71875	15.2		11.4625	23.4
	3.5437499999999997	9.5		10.55625	20.5
	3.1437499999999994	6.2		10.16875	25
	4.0375	1.8		11.018749999999997	7.7
	3.5812500000000003	0.4		10.387500000000001	9.2
	3.9312499999999995	0.1		10.875	11.5
	4.2	5.6		10.962500000000002	26.6
	3.90625	8.4		10.831250000000002	21.7
	4.5562499999999995	8.4		12.1125	27.4
	5.018750000000001	11.4		11.8	22.5
	4.5875	5.6		10.35625	15.3
	4.612500000000001	4.1		12.331249999999999	11.6
	3.8874999999999993	5.5		10.725000000000001	18.2
	4.7875	9.3		10.9875	20.3
	5.5562499999999995	4.2		12.043750000000001	12.6
	5.999999999999999	0.8		11.9	10.8
	6.999999999999999	1.7		14.231250000000001	8.8
	7.475	-0.4		13.19375	13.9
	6.9125000000000005	5.2		13.618749999999999	22.3
	7.30625	8.7		14.550000000000002	28.8
	7.05625	8.2		13.587499999999999	18.8
	6.887499999999999	1.8		12.4625	13.4
	7.175000000000001	0.7		14.231249999999998	13.7
	7.924999999999999	0.7		14.518749999999997	19.1
	7.19375	10.4		14.881250000000001	22.6
	7.006250000000001	2.1		13.5625	18
	7.7	4.9		13.83125	14.3
	8.2375	3.3		14.443750000000001	25.2
	8.21875	6.9		16.218749999999996	16.8
	8.281250000000002	3.5		15.7625	19.5
May	8.75	9.2		15.63125	25.6
	9.86875	15.3		18.09375	30.5
	9.35	13.5		15.15	28.3
	8.71875	15.2		15.881249999999998	28.4
	9.15	10.8		16.44375	26
	10.23125	7.1		16.54375	11.1
	11.2	6.7		17.375	16.5
	10.543750000000003	9.4		17.968749999999996	20.9
	10.875000000000002	11.1		17.525000000000002	21.4
	10.225000000000001	10		17.431250000000002	23.7
	12.887500000000003	12.7		19.925	30.7
	12.518749999999999	15.6		18.743750000000002	30.1
	12.04375	13.6		17.8625	27.3
	12.41875	10.7		19.025000000000002	21.1
	13.55625	8.3		19.818749999999994	25.6
	13.53125	11.3		20.693749999999998	22.5
	13.08125	11.4		20.306250000000002	22.6
	11.693750000000001	10.8		18.968749999999996	23.3
	11.956249999999999	11.6		19.337500000000002	23.5
	13.3375	8.5		21.39375	27.7
	14.05625	12.8		22.43125	32.9
	13.55625	19.1		20.26875	25.8
	13.318750000000001	17.8		20.168750000000003	28.6
	13.793750000000001	15.1		19.8875	27.1
	13.399999999999999	17.4		19.89375	28.9
	13.44375	18		21.475	32.1
	14.381249999999998	18		21.40625	33.8
	14.568750000000001	18.9		21.95	29.9
	14.312499999999998	14.3		21.018749999999997	27.8
	13.781249999999998	17.1		20.293750000000003	31.6
	14.487499999999999	13.3		21.31875	20.8
Jun.	15.475	11.1		21.956250000000004	27.1
	15.78125	15.4		22.399999999999995	25.1
	16.35625	13.1		24.325	17.8
	16.156249999999996	14.7		23.94375	24.8
	16.1375	13.3		22.74375	27.3
	16.68125	15.1		24.06875	25
	17.712500000000002	12.8		24.7875	23.4
	17.531250000000004	13.7		24.268749999999997	23.8
	17.474999999999998	12		24.56875	24.1
	16.9125	13.6		23.150000000000002	23
	16.65	14.5		22.98125	24.5
	17.162499999999998	12.7		23.3	22.5
	16.756249999999998	14.1		23.8125	25.6
	16.89375	16.4		24.056249999999995	26.1
	17.862500000000004	21.6		24.237500000000004	36.6
	18.75625	25		25.068749999999998	37.9
	17.3875	25.2		23.968749999999996	38
	17.0375	20.6		23.41875	34.3
	16.95625	21.1		24.275000000000002	34.4
	19.0625	19.1		26.6875	28.3
	20.068750000000005	18.3		27.031249999999996	23.2
	19.468750000000004	17.8		25.650000000000002	27.4
	18.55	16.4		25.18125	30.1
	18.343749999999996	18.9		24.418749999999996	32.8
	18.41875	20.1		25.068749999999998	32.9
	18.7375	19.3		25.025000000000002	28.1
	18.668749999999996	17.5		24.7625	29
	19.1	18.4		25.51875	29.4
	19.09375	19.1		25.424999999999994	35.2
	19.056249999999995	22		25.7125	36.8
Jul.	19.599999999999998	22.6		25.931250000000002	36.4
	19.375	22.2		25.550000000000004	31.2
	19.31875	21.9		25.6125	37
	19.8125	21.4		26.825000000000003	35.3
	20.374999999999996	18.6		26.875	27.6
	20.05625	15.5		27.0875	31.3
	19.43125	18.3		25.525000000000002	31.4
	19.7375	13.9		26.362499999999997	25
	19.50625	12.6		26.56875	26.8
	19.856250000000003	14.7		26.25625	26.8
	19.09375	15.7		25.593750000000004	30.3
	19.475	22		26.0125	35
	19.662499999999998	21.9		26.0875	32.6
	19.399999999999995	17.6		26.062500000000004	26.8
	19.031249999999996	15.3		25.0375	28
	18.912499999999998	15.2		24.525000000000006	31.2
	18.81875	18.2		25.375	30
	19.03125	20.3		25.612499999999997	23.2
	19.068749999999998	18.2		26.250000000000004	25.8
	19.5375	17		26.2	27
	18.943749999999998	18.2		24.88125	30.2
	19.04375	21		25.481250000000003	27.5
	19.275	17.8		25.075000000000003	25.7
	19.156250000000004	18.9		25.106250000000003	30.9
	18.86875	19.2		25.706249999999997	30.4
	19.10625	16		26.0125	28.2
	19.0125	21.1		25.362500000000004	30
	19.175000000000004	20.7		25.56875	26
	18.7125	20.6		25.23125	28.8
	18.556250000000002	18.1		24.60625	28.9
	17.931250000000002	18.6		23.93125	28
Aug.	18.200000000000003		21.6	24.85		25.5
	18.95		21	25.950000000000003		27.5
	18.88125		19.8	24.86875		24.8
	18.525000000000002		18.8	24.9875		27.2
	19		18.5	25.6		23.5
	19.418750000000003		17.4	25.293750000000003		24
	18.58125		17	24.95		20.8
	17.450000000000003		16.8	23.98125		25.6
	17.84375		18.1	24.999999999999993		25.2
	18.137500000000003		18.4	25.456249999999997		25.8
	18.431250000000002		18.6	25.299999999999997		25
	18.61875		18.5	25.025000000000002		25
	18.63125		18.5	25.712500000000002		25.5
	19.14375		18.8	25.4875		24.6
	18.700000000000003		18.2	25.41875		24.5
	18.243750000000002		18	24.262500000000003		23.9
	17.999999999999996		17.5	24.575		24.2
	18.7625		18.2	25.09375		23.8
	18.287499999999998		18	24.674999999999997		24.8
	17.75625		17.5	24.812500000000004		24.8
	17.03125		16.8	23.8375		23.8
	16.3125		16.6	23.262499999999996		23.7
	16.38125		16.2	23.9125		23.3
	16.23125		15.7	23.281249999999996		22.6
	15.243750000000002		15.1	21.437500000000004		21.1
	15.262499999999998		15.8	21.875000000000004		22.1
	16.1625		16.1	23.243750000000002		22.9
	15.537500000000001		16	21.881249999999998		22.5
	14.88125		15.3	21.65625		21.8
	15.25625		15.3	22.031250000000004		21.9
	14.918750000000001		14.9	22.43125		22.4
Sep.	15.45625			22.074999999999996
	15.731250000000001			22.281249999999996
	15.9875			23.39375
	15.843750000000002			21.79375
	15.681250000000004			21.025
	16.09375			23.400000000000002
	15.8			22.393749999999997
	14.475			20.556250000000002
	14.63125			20.775
	14.450000000000001			20.5875
	14.693750000000001			20.4125
	14.081249999999999			21.162499999999998
	14.031249999999998			20.125
	13.34375			19.162500000000005
	12.487499999999999			18.762500000000006
	12.837499999999999			18.625000000000004
	13.8875			19.025000000000002
	13.156250000000004			18.6625
	12.64375			19.225
	12.274999999999999			18.59375
	12.468749999999998			19.0625
	11.631250000000001			18.85625
	11.025			17.9125
	10.443750000000001			18.775000000000002
	11.156249999999998			18.53125
	11.443750000000001			18.506249999999998
	10.518750000000002			17.63125
	10.9375			17.26875
	9.799999999999999			15.14375
	9.25			15.256249999999996
Oct.	8.225			14.943750000000001
	7.44375			13.8625
	7.237500000000001			13.806249999999999
	7.76875			14.9625
	7.893750000000001			15.18125
	7.95625			15.300000000000002
	7.35			14.6
	7.143750000000001			13.950000000000001
	8.18125			14.31875
	8.03125			14.9125
	7.668749999999999			13.9
	7.518749999999999			13.068750000000001
	6.343749999999999			12.13125
	5.4312499999999995			9.962500000000002
	4.7125			10.53125
	6.25625			11.737499999999999
	4.687499999999999			9.774999999999999
	3.7687500000000003			10.54375
	4.9624999999999995			11.387499999999998
	4.7437499999999995			11.4625
	6.81875			11.99375
	5.7124999999999995			11.875
	5.6499999999999995			12.631250000000003
	4.26875			9.65625
	4.24375			9.60625
	3.9			10.725000000000001
	4.09375			9.6125
	2.4499999999999997			10.4875
	0.91875			6.31875
	0.4			6.36875
	0.6125			6.550000000000001
Nov.	1.8562500000000002			7.8875
	2.3187499999999996			7.675
	1.78125			7.056249999999999
	0.64375			5.8875
	0.018749999999999933			6.2875
	1.1375			6.7875000000000005
	0.8			6.76875
	-0.3625			5.3500000000000005
	0.44375000000000003			6.362499999999999
	0.51875			6.3875
	-0.18749999999999994			5.38125
	-0.58125			4.912499999999999
	-2.4250000000000003			3.6437500000000007
	-2.36875			2.8125000000000004
	-0.875			4.74375
	-0.6625000000000001			5.368749999999999
	-1.0625			3.2187499999999996
	-0.6187499999999999			4.2125
	-1.4187500000000002			4.106249999999999
	-0.59375			4.600000000000001
	-1.9000000000000001			3.5375
	-3.8750000000000004			0.9249999999999999
	-4.0375			0.06249999999999997
	-2.2437499999999995			2.4
	-2.7624999999999997			2.51875
	-3.1125000000000003			1.7500000000000002
	-3.3374999999999995			1.70625
	-3.71875			1.7250000000000003
	-3.4			1.8937499999999998
	-3.4124999999999996			2.65625
Dec.	-3.0875000000000004			2.7125
	-2.6625			2.1875
	-3.1125000000000007			1.1875
	-4.90625			-0.14999999999999997
	-4.606249999999999			1
	-3.75625			1.50625
	-1.95625			2.65625
	-2.9875			1.7
	-3.6499999999999995			1.5125
	-3.0000000000000004			1.86875
	-2.69375			1.4000000000000001
	-3.0687500000000005			1.6437499999999998
	-3.0750000000000006			2.2812499999999996
	-3.4999999999999996			1.8312499999999996
	-3.16875			2.55
	-4.9125000000000005			0.41875000000000007
	-5.239999999999999			-0.44666666666666643

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

38°C

Highest Temp

1 Jul. 26

-22°C

Lowest Temp

24 Jan. 26

Seasonal Breakdown

Hottest MonthJuly31.05°C

Coldest MonthJanuary-9.49°C

Wettest MonthAugust5.68mm

Windiest MonthMarch27.11km/h

Winthrop Harbor 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 Winthrop Harbor historically?

July is historically Winthrop Harbor's hottest month, with average maximum temperatures around 26°C. During peak heatwave events, the highest recorded temperatures have reached 38°C on 2026-07-01.

2. What is the coldest month in Winthrop Harbor historically?

January is Winthrop Harbor's coldest month, with average minimum temperatures around -7°C. The all-time record low of -30°C was recorded on 2019-01-31.

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

Winthrop Harbor's average annual rainfall is approximately 1048.9mm, based on records spanning 17 years.

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

Winthrop Harbor historically records approximately 177.4 rainy days per year. June has the highest number of rain days at an average of 16.5 days.

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

The all-time highest temperature recorded in Winthrop Harbor is 38°C on 2026-07-01.

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

The all-time lowest temperature recorded in Winthrop Harbor is -30°C on 2019-01-31.

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

Winthrop Harbor experiences its strongest winds during November. The historic gust record of 59.3 kph was recorded on 2011-02-02.

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

Usually, Winthrop Harbor's humidity peaks in January at around 82.5% and drops to its lowest in October at approximately 72.3%.

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Winthrop Harbor Historic Weather Records
Analyse hottest, coldest, windiest & wettest days