New Haven Historic Weather Records
Analyse hottest, coldest, windiest & wettest days

New Haven Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	-4.787500000000001	-11.2		0.3250000000000001	-6.2
	-5.606249999999999	-6.6		-1.0124999999999997	-3.1
	-5.2875000000000005	-8.6		-1.01875	-3.7
	-5.793750000000001	-6.8		-0.06250000000000003	-2.7
	-6.43125	-4.6		-1.8125000000000002	0.3
	-6.312499999999999	-1.2		-1.61875	2.3
	-7.2	0.3		-1.9749999999999999	1.2
	-6.3812500000000005	0.8		-1.26875	3
	-6.474999999999999	2.1		0.33125	8.4
	-5.1812499999999995	-0.7		0.4000000000000001	0.9
	-3.6624999999999996	-2.9		1.7562499999999999	0.4
	-4.21875	-2.9		2.025	4
	-6.337499999999999	-2.8		-1.0875000000000001	2.4
	-7.4875	-9.1		-2.2249999999999996	1.5
Jan.	-6.9312499999999995	-10.9		-2.03125	-6.7
	-7.075000000000001	-8.7		-1.3624999999999998	-1.1
	-6.937500000000001	-6.1		0.1062500000000001	0.4
	-5.256250000000001	-15.2		-0.7500000000000001	-6.9
	-6.5625	-15.8		-0.9125000000000001	-8.5
	-8.5125	-18.3		-3.15	-8.5
	-9.406250000000002	-12.2		-3.4749999999999996	-1.7
	-8.0875	-10.6		-2.1750000000000003	-4.2
	-6.23125	-16.8		-1.0749999999999997	-6.6
	-5.7562500000000005	-19.1		-1.1624999999999999	-13.2
	-5.950000000000001	-13.7		-0.4	-8.4
	-5.793749999999999	-12.8		-0.8937500000000002	-8.6
	-6.581250000000001	-14.6		-0.9	-8.5
	-6.968749999999998	-14.9		-1.1125	-9.1
	-7.950000000000001	-15.8		-1.8062500000000001	-9.3
	-8.875000000000002	-15.4		-2.2624999999999997	-9.1
	-7.156249999999999	-15.3		-1.0000000000000002	-7.5
	-6.781249999999998	-15.4		-0.825	-1.3
	-7.5687500000000005	-15.8		-0.7437499999999998	-3.8
	-6.843750000000001	-11.4		-0.6687500000000001	-4.6
	-7.475	-13		-0.5062500000000001	-6
	-7.656249999999999	-11.8		-1.33125	-4.4
	-7.1499999999999995	-11.5		-1.175	0
	-6.09375	-16.5		0.4500000000000001	-7.6
	-7.675	-13.2		-1.0875	-6.4
	-6.812500000000001	-14.8		-1.0687500000000003	-5.2
	-7.831250000000001	-7.4		-1.94375	0.5
	-7.574999999999999	-5		-1.4000000000000001	-1.8
	-7.89375	-7.3		-1.21875	-1.7
	-8.11875	-5.8		-1.7375000000000005	1.3
	-8.131250000000001	-2.8		-0.6687500000000001	-1.3
Feb.	-7.1187499999999995	-3.2		-1.2374999999999998	-0.3
	-6.275	-2		-0.9437500000000001	0.8
	-7.956250000000001	0.6		-1.2375000000000003	1.7
	-6.743750000000001	0.7		0.5687500000000003	4.3
	-6.2625	0.4		0.8937500000000002	2.4
	-5.749999999999999	1		1.6374999999999997	6
	-4.58125	-1.3		2.6875	1.4
	-3.293750000000001	-2.6		1.8562500000000002	1.2
	-4.9	-6.2		2.6875	-2.8
	-4.63125	-11.1		2.175	-1.5
	-5.393749999999999	-5.1		1.2312500000000002	-0.5
	-6.324999999999999	-9		-0.13750000000000018	2.7
	-4.2625	-2.9		1.9437499999999996	11.1
	-4.668749999999999	-3		2.99375	4.4
	-5.10625	-5.6		2.5125	-4
	-5.43125	-12		0.6875000000000001	1.8
	-5.2124999999999995	-4.3		1.2125	0.4
	-5.5562499999999995	-5.1		1.09375	3.2
	-4.606250000000002	-0.7		2.2124999999999995	1.1
	-4.418749999999999	0.2		2.7687500000000003	4.1
	-3.8625	6.6		3.0937499999999996	17.6
	-2.5749999999999997	1.9		5.08125	11.4
	-1.3687500000000001	3		6.418749999999999	19.2
	0.38125	2.4		7.0375	10.9
	-0.9812500000000001	0.6		5.962500000000001	16.7
	-2.7625	-3.1		4.781250000000001	7.5
	-2.5000000000000004	-0.4		5.29375	5.7
	-0.5812499999999999	-4		6.3500000000000005	2.7
Mar.	-0.5125	-1.7		6.4750000000000005	12
	-0.60625	-5		6.9	10.1
	-0.8624999999999999	-7.7		7.656249999999999	-3.3
	0.15625	-5.7		8.018749999999999	1.2
	-0.15625	-0.8		7.074999999999999	3.6
	-0.45000000000000007	0.1		6.83125	9
	-0.7437499999999999	1.4		7.8125	5.9
	-0.83125	0.8		5.112499999999999	6.5
	-1.2125	-0.3		5.8500000000000005	3.6
	-0.29375	-3.9		7.3125	7.7
	-0.5124999999999998	-1.1		6.0062500000000005	10.7
	-1.1937499999999999	6		6.4750000000000005	15.6
	-0.69375	-3.9		6.45625	3.4
	-0.8375	-3.9		7.568749999999999	5.7
	0.4437500000000001	0.8		7.625	9.4
	0.5437500000000001	5.4		8.78125	14.9
	0.7562500000000001	11.7		8.743749999999999	20.3
	0.5875	0.2		7.54375	2.4
	0.95625	-0.2		9.03125	10.8
	1.8124999999999998	5.2		9.262500000000001	18.5
	1.4625000000000001	3.3		9.33125	17.2
	1.9937499999999995	0.8		9.675	4.6
	1.7062500000000003	-0.6		9.049999999999999	8.6
	2.025	-4.6		9.943750000000001	1.7
	1.9062500000000004	-4.1		10.612500000000002	12.9
	2.9625	4.7		10.96875	24.2
	3.5062499999999996	3.9		12.168749999999998	9.1
	3.3437499999999996	0.8		11.9625	13.3
	4.199999999999998	1.9		13.45625	24.7
	5.124999999999999	16.4		12.806249999999999	26.7
	3.7562500000000005	13.3		12.34375	29.4
Apr.	3.9187499999999997	15.2		12.562499999999998	23.8
	3.8749999999999996	12		12.35	19.5
	2.9624999999999995	10		10.99375	20.9
	3.7625000000000006	4.8		12.174999999999999	17
	3.53125	-0.4		12.61875	9.5
	3.55	-0.8		11.98125	8.8
	4.199999999999999	0.7		12.943750000000001	24.5
	3.24375	7.6		11.20625	25.2
	3.65625	5		13.674999999999999	26.2
	5.16875	9.6		13.074999999999998	25.7
	4.781249999999999	7.7		11.9125	10
	4.18125	4.4		12.375	19.7
	4.375	5.4		12.931250000000002	23
	4.8374999999999995	10.7		13.38125	17.5
	5.675	4.8		13.643749999999999	11.2
	5.943749999999999	3.9		13.956249999999999	10.6
	7.86875	2.2		16.356250000000003	9
	9.2125	0.1		16.2625	8.5
	8.225000000000001	0.1		15.2125	18.1
	8.125	6.6		16.106250000000003	27.1
	7.81875	10.5		15.687500000000002	18.8
	7.643750000000001	4.4		15.649999999999999	13.2
	7.10625	2.4		16.38125	12.4
	7.06875	3.2		16.568750000000005	20.9
	7.868750000000001	5.7		17.15	22.6
	7.031250000000001	3.8		16.25	15
	7.456250000000001	3.3		15.3875	14
	7.824999999999998	0.2		16.418749999999996	19.4
	8.675	7		17.60625	12.7
	8.868749999999999	5.4		17.69375	19.2
May	8.96875	4.7		18.55	24.3
	9.34375	9.7		19.181250000000002	27.7
	9.3625	15.6		17.7125	29.9
	10.049999999999999	17.6		18.087500000000002	33.1
	10.093749999999998	17.7		19.412499999999998	31.4
	11.075	5.3		20.0375	14.7
	12.181249999999999	3.7		20.674999999999997	17.4
	12.275	6		19.956249999999994	24
	11.34375	11.2		19.9875	13.2
	10.56875	10.8		19.762499999999996	20
	12.63125	13		21.925	26.2
	13.625	11.7		22.80625	30.1
	12.91875	14.4		21.66875	28.9
	13.78125	10.1		21.46875	21.9
	14.675000000000002	5.8		22.71875	28.8
	14.325	9.6		23.225	21.9
	14.481249999999998	6		22.137500000000003	27.4
	12.681249999999997	9.4		21.90625	26
	12.2125	9.4		21.125	26.4
	12.86875	9.9		22.331249999999997	28.7
	13.9125	12		23.33125	31.5
	14.075000000000001	15		22.743750000000002	31.9
	13.3875	19.2		21.643749999999997	29.8
	13.943749999999998	13.7		22.725000000000005	27.6
	13.8625	11.8		21.493750000000006	30.3
	13.637500000000001	18.4		22.587500000000002	30.9
	14.618749999999999	21.8		23.081249999999997	32.3
	15.181249999999999	20.2		24.00625	31.2
	15.774999999999999	18.2		23.4	27.5
	14.581249999999997	15.1		22.068749999999998	30.2
	13.506249999999998	14.4		21.60625	20
Jun.	14.3	9.4		23.1125	23
	15.624999999999998	11.8		23.949999999999996	23.8
	15.993749999999999	11.7		25.349999999999998	25
	16.75625	14.7		25.106250000000003	19.3
	16.2875	12		24.5	25.4
	16.63125	13		24.925	23.9
	17.3875	11.6		26.2	25.7
	17.950000000000003	13.5		26.26875	24.2
	17.65	11.7		25.287499999999994	23.6
	17.474999999999998	10.7		25.312500000000004	25.4
	16.9125	15.6		24.412499999999998	24.4
	16.93125	13.5		24.581249999999994	23.5
	16.681250000000002	12		24.687500000000004	27.4
	16.78125	14.1		25.46875	29.4
	17.34375	16.4		25.66875	31.4
	18.1	21.9		26.450000000000003	36.2
	17.9875	24.7		25.900000000000002	37.7
	17.15625	24		25.3	37.3
	16.93125	22.9		25.999999999999996	36.1
	18.025	20.3		27.575	30.1
	19.600000000000005	20.1		29.0375	26
	19.593749999999996	18		27.299999999999994	29
	18.79375	16.2		26.756250000000005	30.3
	18.13125	17.2		25.9125	32.6
	18.24375	19.8		26.2375	31.7
	18.075	20.1		25.975	28.8
	18.45625	17.6		26.025000000000002	30.3
	18.474999999999998	16.4		26.474999999999994	30.4
	19.224999999999998	16.6		26.55	33.4
	18.837500000000002	20.1		26.849999999999998	38.1
Jul.	19.09375	21.8		26.718750000000007	36.4
	19.018749999999997	17.5		26.612499999999997	30.7
	19.362499999999997	15		26.9125	30.5
	19.01875	20		27.98125	33.7
	20.012499999999996	15.4		27.756249999999998	27.1
	19.85625	12.8		27.53125	29.2
	19.2375	19.7		26.643749999999997	32.4
	17.725	12.6		25.98125	23.5
	18.893749999999997	11.6		27.200000000000003	27.4
	19.25625	12.7		26.91875	28
	18.5	14.6		26.224999999999998	29.7
	18.35	17.2		26.6625	31.3
	19.0625	19.2		27.293750000000003	34.2
	18.85625	18.2		26.581250000000004	27
	18.637500000000003	14.7		26.1875	28
	17.79375	16.1		25.7375	31.2
	17.993750000000002	17.2		25.675	33.5
	18.012499999999996	20		26.0875	29.8
	17.81875	18.5		26.731250000000006	24.5
	18.862499999999997	14.2		26.668749999999996	28.6
	18.618750000000006	12.7		26.66875	29.4
	18.374999999999996	15.1		26.274999999999995	31.2
	18.8875	20.1		25.78125	28.1
	18.268749999999997	20.1		25.55625	30.3
	18.2625	20.4		25.9125	33
	18.31875	14.8		26.724999999999994	30.6
	18.51875	18.6		26.337500000000002	30.3
	18.481249999999996	18.7		25.868750000000002	31
	18.587500000000002	17.2		26.031249999999996	31.4
	17.831249999999997	18		25.968750000000007	30.5
	17.66875	17.7		24.9	31.3
Aug.	17.556250000000002	16.1		25.462500000000002	26.5
	17.6375	20.1		26.037499999999998	27.4
	18.756249999999998		9.1	25.8125		28
	17.9875		9.5	25.33125		10.2
	17.618750000000002		9.5	25.856250000000006		10.7
	18.075000000000003		7.5	25.743750000000002		9.7
	18.05625		7.1	24.987499999999997		7.8
	17.08125		7	24.43125		7.6
	16.568749999999998		7.2	24.849999999999998		7.7
	17.0125		7.1	25.218750000000004		9
	17.650000000000002		16.8	24.768749999999997		25
	17.425		16.2	25.249999999999996		24.7
	17.48125		16.4	25.374999999999993		25.1
	18.2		16.4	25.618750000000002		24.4
	17.55625		15.8	25.53125		24.8
	17.175		15.5	25.33125		24.8
	16.256249999999994		15.3	25.0875		24.6
	16.725		15.1	25.13125		24.6
	17.343750000000004		15.7	25.493750000000002		25.3
	17.5125		15.7	25.725		26.2
	16.750000000000004		15.5	24.950000000000003		24.5
	16.337500000000002		15.1	24.2		23.9
	15.637500000000003		14.1	23.40625		23.3
	15.55		14.5	24.018749999999994		23.4
	14.8875		13.4	22.156249999999996		21.2
	14.062500000000002		13.2	21.68125		22.1
	15.256250000000001		13.8	23.418750000000006		22.9
	15.13125		14.2	23.08125		23.2
	14.068750000000001		13.2	22.093750000000004		22.5
	14.04375		13.4	22.29375		22.6
	14.256250000000001		12.5	23.2125		22.4
Sep.	13.818749999999998		12.4	21.768749999999994		21.8
	13.96875		13.2	22.181250000000002		22.6
	14.3			23.018750000000004
	14.63125			22.556250000000002
	13.849999999999998			21.41875
	14.025			23.074999999999996
	15.36875			23.70625
	13.98125			21.25625
	13.156249999999996			21.318749999999998
	13.387499999999998			21.6375
	14.575			21.0375
	13.7125			21.318749999999998
	13.600000000000001			20.837500000000002
	13.00625			19.9125
	11.812499999999998			19.306250000000002
	11.387500000000001			18.59375
	11.575000000000001			18.34375
	11.699999999999998			19.06875
	11.337499999999999			18.9875
	11.63125			19.418749999999996
	11.9875			19.44375
	12.05625			19.89375
	11.331249999999999			18.3875
	10.106250000000001			18.2625
	10.325000000000001			18.08125
	10.343750000000002			18.16875
	9.84375			18.324999999999996
	9.599999999999998			16.93125
	9.76875			16.975
	9.531250000000002			15.256249999999998
Oct.	8.5			15.337499999999999
	7.8812500000000005			14.4625
	7.199999999999999			13.2125
	7.100000000000001			14.5
	7.8625			14.73125
	7.587500000000001			14.950000000000001
	7.725			14.375000000000002
	7.181249999999999			14.1625
	7.062500000000001			13.981250000000001
	7.7875000000000005			15.0875
	7.612499999999999			13.3125
	7.0375			13.19375
	6.143750000000001			12.581249999999999
	5.64375			11.924999999999999
	4.88125			10.768750000000002
	5.449999999999999			11.38125
	5.981249999999999			10.737499999999999
	4.41875			10.2625
	4.33125			11.193750000000001
	4.05			10.475
	5.387500000000001			11.3625
	6.218750000000001			11.931249999999999
	6.043750000000001			12.51875
	4.43125			10.33125
	4.09375			9.762499999999998
	3.6625			10.487499999999999
	3.31875			8.84375
	3.525			9.999999999999998
	2.0625			8.424999999999999
	0.25624999999999987			6.375000000000001
	0.7812499999999999			6.5249999999999995
Nov.	1.8875			7.300000000000002
	1.9000000000000004			7.531250000000001
	1.6125000000000005			7.531250000000001
	0.9812500000000001			6.39375
	0.575			6.60625
	0.30624999999999997			6.825
	0.50625			6.362500000000002
	0.04999999999999996			5.54375
	-0.44999999999999996			5.5874999999999995
	0.32500000000000007			6.187499999999999
	1.0375			6.050000000000001
	0.9124999999999999			5.637499999999999
	-0.18125000000000002			4.89375
	-1.0249999999999997			3.13125
	-0.5750000000000002			4.34375
	0.36250000000000004			6.074999999999999
	-0.21874999999999994			4.7125
	0.04375000000000001			4.6
	-0.4000000000000001			4.61875
	-0.11874999999999991			4.35
	-0.54375			4.95
	-1.56875			2.8499999999999996
	-2.4999999999999996			1.0375
	-1.68125			2.5187500000000003
	-1.29375			3.1374999999999997
	-2.28125			2.65625
	-2.71875			2.26875
	-3.375			2.20625
	-2.95625			2.00625
	-3.1312499999999996			1.7874999999999996
Dec.	-2.7312499999999997			3.04375
	-1.9812500000000004			2.0375
	-2.2750000000000004			2.14375
	-3.05			0.8062499999999998
	-3.5937499999999996			0.9
	-3.1437500000000003			0.95625
	-2.26875			2.36875
	-1.53125			2.60625
	-2.6000000000000005			2.5624999999999996
	-2.6999999999999997			2.0437499999999997
	-2.812499999999999			1.9749999999999996
	-2.5437500000000006			1.1625
	-2.08125			2.9062499999999996
	-2.89375			2.2375
	-2.8000000000000003			2.4999999999999996
	-2.7312499999999993			0.9062499999999998
	-2.906666666666666			1.0000000000000002

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

38°C

Highest Temp

14 Jul. 26

-19°C

Lowest Temp

24 Jan. 26

Seasonal Breakdown

Hottest MonthJuly31.15°C

Coldest MonthJanuary-9.37°C

Wettest MonthMarch5.09mm

Windiest MonthMarch27.73km/h

New Haven 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 New Haven historically?

July is historically New Haven's hottest month, with average maximum temperatures around 27°C. During peak heatwave events, the highest recorded temperatures have reached 38°C on 2026-07-14.

2. What is the coldest month in New Haven historically?

January is New Haven's coldest month, with average minimum temperatures around -7°C. The all-time record low of -25°C was recorded on 2015-02-20.

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

New Haven's average annual rainfall is approximately 979.7mm, based on records spanning 17 years.

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

New Haven historically records approximately 186.4 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 New Haven?

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

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

The all-time lowest temperature recorded in New Haven is -25°C on 2015-02-20.

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

New Haven experiences its strongest winds during November. The historic gust record of 56.2 kph was recorded on 2026-03-13.

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

Usually, New Haven's humidity peaks in February at around 83.8% and drops to its lowest in October at approximately 74.1%.

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