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.
	-0.18125000000000013	-4		5.068749999999999	-1.2
	-2.10625	-6.9		4.2125	-1.5
	-3.3187499999999996	-6.3		2.2937499999999997	0.1
	-2.6250000000000004	-3.7		3.36875	2.1
	-3.1062499999999997	-7.1		2.66875	-0.9
	-3.0812499999999994	0.1		2.04375	2.4
	-4.69375	2.1		1.1375	6.9
	-4.793749999999999	1		0.9812500000000001	4.6
	-3.6625	-1.7		1.9312500000000001	5.6
	-2.8062499999999995	3.3		4.08125	7.2
	-1.6500000000000004	0.5		3.8000000000000003	6.2
	-0.41875000000000007	-2		6.36875	4.3
	-2.1687499999999997	-0.8		5.3187500000000005	5.3
	-3.5562500000000004	3.3		2.2	5.7
Jan.	-3.6062500000000006	-5		1.98125	3.8
	-3.31875	-6.2		3.13125	0.2
	-3.09375	-0.7		2.29375	1.5
	-2.7875	0.4		2.9625000000000004	1.3
	-2.26875	-2.2		3.36875	1.1
	-3.9812500000000006	-7.4		2.6375	-2.9
	-5.893750000000001	-8.8		-0.26249999999999996	1.8
	-5.90625	-0.3		0.27499999999999997	3.3
	-4.2562500000000005	-4.7		1.4312500000000004	0.5
	-4.2875000000000005	-13.6		2.0437499999999997	-9.3
	-3.0625	-10.9		3.13125	-8.1
	-2.6	-7.3		2.4687500000000004	-2.3
	-2.5749999999999997	-10.5		3.7125000000000004	-3.9
	-3.2812500000000004	-10.4		2.1812500000000004	-3.3
	-4.30625	-10.6		1.425	-4.7
	-5.625	-14.7		1.1062499999999997	-7.1
	-5.6937500000000005	-14.9		1.0062499999999999	-4.6
	-3.6999999999999997	-10		3.1624999999999996	-3.8
	-3.73125	-10.6		3.0312499999999996	1.1
	-4.0562499999999995	-10.3		2.3812499999999996	-2
	-3.7125000000000004	-4.7		3.6812500000000004	-1
	-3.6625	-7.9		3.18125	-1.8
	-4.05	-8.9		2.2875000000000005	-3.3
	-2.775	-14.6		3.59375	-1.9
	-3.7562499999999996	-18.3		2.9250000000000003	-7.9
	-4.9375	-14		1.69375	-0.3
	-2.8875000000000006	-8.2		2.96875	-1.1
	-3.60625	-2.4		2.6437499999999994	2.7
	-4.275	-4.4		2.9499999999999997	2.5
	-4.674999999999999	-7.8		1.68125	1.2
	-4.812500000000001	-2.6		2.1312499999999996	3.5
Feb.	-4.06875	-2.8		3.0250000000000004	2.8
	-2.6125000000000007	-2.4		4.5125	5.9
	-3.3750000000000004	-0.4		3	3
	-4.0625	-0.6		3.6062499999999997	1.4
	-3.9562500000000003	-0.8		3.774999999999999	2.4
	-3.4062499999999996	0.5		3.3499999999999996	1.3
	-2.3875	0.3		4.425	2.4
	-1.725	-0.2		5.48125	1.6
	-0.6249999999999999	-3.1		5.7124999999999995	-0.5
	-1.1375000000000002	-5.2		6.04375	0.2
	-1.19375	-6.1		5.3374999999999995	1.8
	-2.5500000000000003	-2.6		3.7437500000000004	2.9
	-2.33125	-4.3		4.862500000000001	2.1
	-1.3125000000000004	-1.7		5.000000000000001	1.2
	-1.1625	-4.3		5.78125	0.1
	-1.825	-9.2		5.2	-1.5
	-3.1937500000000005	-4.9		3.9937499999999995	1.2
	-1.81875	-1.4		4.49375	5.6
	-2.043750000000001	-1.9		4.887500000000001	1.7
	-1.9	1.2		4.95625	2.8
	-1.6625	0.9		5.487500000000001	3.7
	-0.5999999999999999	1.6		6.9625	9.9
	0.45624999999999993	-0.1		8.2375	4.4
	0.7187499999999999	1.2		8.0875	6.6
	1.7625	3.2		9.175	6.3
	1	-0.3		8.168750000000001	9.7
	-0.35	-1.4		6.293749999999999	2.9
	1.15	2.3		7.96875	8.6
Mar.	1.46875	-0.3		7.7	4.2
	0.7812499999999999	4		7.675	11.4
	0.7875000000000001	-0.2		8.0625	11.7
	1.4062500000000002	-4.3		9.112499999999999	0.5
	0.9750000000000002	-1.8		7.706249999999999	3.3
	1.0562500000000001	0.7		8.6	5.9
	2.1374999999999997	3		9.149999999999999	10
	1.00625	4.2		8.5	7.9
	0.10625000000000014	2		7.281249999999999	6.5
	1.6187500000000001	-1.1		8.737499999999999	7.2
	1.8937500000000003	1.7		8.768749999999999	7
	1.65	4.6		9.26875	9.5
	0.01875000000000004	5		8.099999999999998	10.9
	1.4437499999999996	-1.1		8.46875	2.9
	2.9	-1.4		9.825	8.3
	2.5937499999999996	4.7		9.4625	12.4
	2.8375	7.8		9.74375	13.9
	3.0500000000000003	11.6		10.387500000000001	23
	1.84375	4.1		9.431249999999999	6.8
	3.212500000000001	4.4		10.968749999999998	15.7
	3.5874999999999995	6.3		11.325	21.3
	3.2500000000000004	5		10.393749999999999	13.3
	3.15	2.1		11.6125	13.2
	3.9	-0.2		11.162499999999998	11.1
	4.51875	-0.8		12.00625	10.5
	3.4437499999999996	-1.4		11.456249999999999	10.1
	4.468750000000001	3.1		12.10625	16.9
	4.987499999999999	6.2		13.243749999999999	18.1
	6.1625	2.5		13.675	15.2
	6.99375	6.4		14.756249999999998	24.8
	7.793750000000001	13.7		15.85	28.9
Apr.	5.93125	14.6		13.6625	29.5
	5.981250000000002	13.6		13.306250000000002	31.2
	6.262500000000001	13.5		13.706249999999999	25
	5.1625000000000005	10.1		13.39375	17.6
	6.35625	3.9		13.38125	10.7
	6.15	0.7		14.743749999999999	10.8
	6.174999999999998	-1.2		13.718749999999998	11.4
	6.418749999999999	4.4		14.312500000000002	8.5
	6.175	4.1		14.118749999999997	23.8
	6.337500000000001	7.7		14.556250000000002	18
	6.987500000000002	2.7		13.725000000000001	14.1
	6.9625	4.9		14.237499999999999	12.3
	6.312499999999999	3.4		12.987499999999999	21.3
	6.481249999999998	5.6		14.656250000000002	18.9
	7.34375	5.6		15.218749999999998	18.4
	7.35625	8.3		14.81875	11.6
	7.5375000000000005	4.9		15.7875	18.6
	9.281250000000002	8.3		17.193749999999998	14
	9.19375	4.3		16.84375	14.9
	9.6375	5.4		16.60625	22.9
	9.075	9.3		15.993749999999999	25.1
	9.00625	13		15.518749999999999	22.7
	8.731250000000001	9		16.400000000000002	19.8
	8.987499999999999	6.9		16.98125	18
	8.60625	7.8		15.425000000000002	21.2
	9.2625	10.9		17.556250000000002	18.7
	9.30625	8.8		17.362499999999997	20.9
	8.9875	5.5		17.43125	20.5
	8.825	8.9		16	22.3
	8.881249999999998	11.7		17.325	17.2
May	10.443749999999998	9.3		18.9125	19.7
	12.11875	9.5		19.2625	25.8
	11.506250000000001	14.8		20.06875	32.4
	11.037500000000001	15.6		18.69375	31.2
	11.15	16		18.3125	32.9
	11.562499999999998	16.4		19.431250000000002	29.1
	11.706249999999999	10.4		19.868750000000002	19.3
	11.900000000000004	9		19.025	22.4
	12.168750000000001	9.3		19.90625	15.2
	12.13125	9.9		19.974999999999994	13
	11.88125	13.1		19.5625	21.6
	13.18125	12.5		22.725	25.8
	13.700000000000003	15.1		22.374999999999996	31.8
	13.456249999999999	14.2		20.10625	24
	13.66875	12.7		21.5625	24.6
	13.924999999999999	9.5		21.812499999999996	13.8
	13.93125	5.9		22.7125	24
	13.512500000000001	12		21.456250000000004	21.1
	13.68125	8.2		22.0625	25.6
	13.375000000000002	12		21.05625	30.6
	12.8625	13.1		21.00625	30
	13.3375	14.9		21.725	34.1
	14.2625	15.7		22.156249999999996	34.9
	14.53125	17.4		22.23125	29.7
	14.868749999999999	14.6		23.125000000000004	25.4
	14.76875	13.2		22.862500000000004	28.5
	14.768749999999999	15.8		22.462500000000002	28.9
	15.056250000000002	19		22.356250000000003	36.1
	15.306249999999999	20.3		22.25625	32.9
	15.862499999999999	18		22.437499999999996	30.1
	14.55	17.9		22.45625	31
Jun.	14.462499999999999	15.3		22.51875	25.5
	15.2	12.1		22.725	24.6
	15.762500000000001	14		23.443749999999998	26.2
	15.5	17.2		23.437499999999996	33
	16.2125	16.7		24.65625	29.3
	16.25625	15.2		24.412499999999998	29.7
	17.162499999999998	14.9		25.281250000000004	28.6
	17.268750000000004	15.6		25.3875	28.2
	17.66875	18.4		25.325	23.7
	17.90625	15.5		26.743749999999995	30.2
	18.3	15.4		26.475	30.1
	17.64375	18.3		26.1375	26
	17.69375	19.6		24.631249999999998	30.3
	18.137499999999996	17.8		25.7125	29.4
	18.375	17.3		26.26875	32
	18.8375	18.7		27.137499999999996	32.6
	19.168750000000003	20.5		27.225000000000005	34.6
	19.200000000000003	22.4		26.587499999999995	37.1
	18.850000000000005	25.4		26.825000000000003	40.4
	18.868750000000002	24.2		26.66875	38.2
	19.09375	20.6		27.53125	29.8
	20.40625	17.8		28.74375	21.2
	20.306250000000002	16.5		27.574999999999996	20.3
	20.70625	16.5		27.568749999999998	28.3
	20.1375	19.1		27.418749999999996	30.9
	19.718750000000004	21.2		26.5375	32.7
	19.71875	19.5		26.75	31.2
	20.187500000000004	16.9		27.543749999999996	31.8
	19.75625	18.4		27.3	31.5
	20.25	20.7		26.249999999999996	37.3
Jul.	20.45	22.8		28.075000000000006	34.5
	20.75625	21.1		28.35	34
	20.975	18		28.462500000000002	32.2
	20.875000000000004	18.9		27.793749999999996	30.1
	20.65	18		29.337499999999995	29.2
	21.200000000000003	14.6		28.80625	29.3
	20.718750000000004	18.4		27.968749999999996	27.1
	20.256249999999998	20		28.218749999999996	30.1
	20.2875	15.4		27.293750000000006	26.5
	20.581249999999997	14.5		27.39375	28.9
	19.81875	14.7		26.068749999999998	28.4
	19.31875	13.8		27.5875	30.1
	20.05625	16.1		28.187500000000004	30.4
	20.45625	20.2		28.625000000000004	28.7
	20.806250000000002	19.9		27.762500000000006	25.8
	19.5625	19.2		27.593750000000004	26.3
	18.71875	17.8		27.193749999999998	29.8
	19.643749999999997	19.5		26.04375	32.2
	19.40625	22.3		26.787500000000005	31.3
	19.59375	20.4		26.55625	27.3
	20.400000000000002	17.7		27.768749999999997	30.3
	19.94375	17.5		27.03125	31.5
	19.81875	23.3		27.118750000000006	34.5
	19.90625	24		26.631249999999998	36.3
	19.6125	21.7		26.487499999999997	33.7
	19.56875	22.8		26.98125	34
	20.081249999999997	19.5		27.318750000000005	33.8
	20.1375	21.2		26.9875	33.8
	20.068749999999998	18.9		26.993750000000006	32.6
	20.3375	21.1		26.46875	31.5
	19.4125	18.4		26.462499999999995	31.6
Aug.	19.025	16.9		26.19375	28.5
	19.14375		15.9	26.58125		26.3
	19.9875		20	26.700000000000003		26.1
	19.6		17.8	26.412499999999998		27.7
	19.418750000000003		18.4	26.312500000000004		28.5
	18.950000000000003		21.1	26.587500000000002		29.3
	18.98125		18.2	25.812500000000004		26.1
	19.225		20.3	25.837500000000002		26.1
	18.33125		21.2	24.925		29
	18.012500000000003		18.5	25.481249999999996		26.2
	19.09375		19.3	26.45625		26.8
	19.01875		18.9	26.837500000000002		26.9
	18.44375		18.5	26.125		26.6
	17.975		18.4	25.7875		25.8
	18.931250000000002		18.5	26.331249999999997		25.6
	18.59375		18	26.39375		26.5
	18.43125		18.5	26.025000000000002		26.4
	17.69375		17.9	24.8375		25
	18.037499999999998		17.5	25.3125		25.4
	18.075		17.6	25.443749999999998		25
	18.424999999999997		18.1	25.3875		25.7
	18.481250000000003		18.3	25.01875		25.2
	17.787499999999998		17.7	24.343749999999996		24.4
	16.93125		17	23.893750000000004		24
	17.118750000000002		16.6	24.612499999999997		24.9
	16.325		16.4	23.375		23.5
	16.70625		16.5	23.7		23.3
	17.3125		16.5	24.81875		24.5
	16.8125		16.8	23.768750000000004		23.6
	16.28125		16.8	23.112500000000004		23.7
	15.781249999999998		16.2	23.237500000000004		23.9
Sep.	15.7375		15	23.5875		23.1
	14.899999999999999			22.043749999999996
	14.48125			21.912499999999998
	15.324999999999998			22.425
	15.31875			22.63125
	14.843749999999998			22.0125
	15.10625			21.787499999999998
	14.849999999999998			22.118750000000002
	14.756250000000001			21.881249999999998
	14.599999999999998			22.34375
	14.4375			21.75625
	15.331249999999999			22
	14.53125			22.025
	15.593749999999998			21.76875
	15.33125			21.025000000000002
	13.731250000000001			19.4875
	13.006250000000001			19.4
	12.918750000000003			19.8375
	12.28125			18.29375
	13.174999999999999			19.443749999999998
	12.743749999999999			19.21875
	13.2			20.06875
	13.59375			21.137499999999996
	12.99375			19.068750000000005
	12.087499999999999			18.2375
	11.41875			18.19375
	12.4			18.687500000000004
	10.46875			17.95
	10.85625			17.125
	11.2125			17.4
Oct.	11.074999999999998			17.943749999999998
	10.362499999999999			16.943750000000005
	9.225000000000001			16.374999999999996
	8.393749999999999			15.443749999999998
	9.056249999999999			16.0625
	10.549999999999999			17.76875
	10.356250000000001			17.675
	10.43125			16.7875
	9.8			15.91875
	9.65			15.112499999999997
	9.856250000000001			15.893749999999999
	9.175			14.45
	8.700000000000001			15.0625
	8.381250000000001			15.0875
	8.0625			13.44375
	7.55			13.600000000000001
	7.825			14.099999999999998
	7.375000000000001			13.8
	7.56875			13.9125
	6.2125			13.462500000000002
	6.050000000000001			12.44375
	6.7749999999999995			13.275000000000002
	7.5625			13.893749999999999
	7.15625			13.90625
	5.125			11.293749999999998
	4.868750000000001			12.3625
	4.99375			12.38125
	4.7875000000000005			11.225
	5.1812499999999995			12.89375
	4.09375			10.24375
	2.8187500000000005			8.85
Nov.	3.2249999999999996			9.106249999999998
	4.4875			10.275
	3.6437500000000003			10.5375
	3.475			9.981250000000001
	2.98125			9.362499999999999
	2.6875			8.562500000000002
	2.2625			8.5625
	3.025			8.806249999999999
	2.0437499999999997			8.225000000000001
	1.78125			8.125
	3.2			9.28125
	2.9624999999999995			9.875
	3.725			9.5875
	1.975			7.4125000000000005
	1.7000000000000002			7.34375
	1.3250000000000004			7.956250000000001
	2.4437499999999996			8.368749999999999
	2.55625			7.91875
	2.3312500000000003			7.775
	0.8624999999999998			6.5875
	2.1375000000000006			7.387499999999999
	2.25			8.19375
	0.29375			4.93125
	-0.85625			4.225
	0.9750000000000001			5.6000000000000005
	0.675			5.937499999999999
	0.9437499999999999			5.949999999999999
	0.24999999999999992			6.3
	-0.26875000000000004			5.61875
	-0.29999999999999993			5.3500000000000005
Dec.	-0.04999999999999999			5.75
	0.2499999999999999			4.53125
	-0.012500000000000039			5.06875
	-0.18124999999999986			5.137499999999999
	-1.3874999999999995			4.5375
	-1.51875			3.7250000000000005
	-0.03749999999999984			5.23125
	1.20625			6.918749999999999
	-0.23125000000000015			6.3187500000000005
	-0.5875			4.199999999999999
	-0.68125			4.5125
	-0.84375			4.6312500000000005
	-1.3			4.468749999999998
	-0.8937500000000002			5.912499999999999
	-0.4062499999999999			4.3500000000000005
	-0.8875000000000001			4.2375
	-0.3333333333333334			4.18

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

40°C

Highest Temp

3 Jul. 26

-18°C

Lowest Temp

8 Feb. 26

Seasonal Breakdown

Hottest MonthAugust32.19°C

Coldest MonthFebruary-5.5°C

Wettest MonthMarch10.82mm

Windiest MonthJanuary23.95km/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 28°C. During peak heatwave events, the highest recorded temperatures have reached 40°C on 2026-07-03.

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

January is New Haven's coldest month, with average minimum temperatures around -3°C. The all-time record low of -20°C was recorded on 2016-02-14.

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

New Haven's average annual rainfall is approximately 1398.5mm, based on records spanning 17 years.

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

New Haven historically records approximately 172.8 rainy days per year. December has the highest number of rain days at an average of 14.8 days.

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

The all-time highest temperature recorded in New Haven is 40°C on 2026-07-03.

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

The all-time lowest temperature recorded in New Haven is -20°C on 2016-02-14.

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

New Haven experiences its strongest winds during January. The historic gust record of 70.9 kph was recorded on 2012-10-29.

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

Usually, New Haven's humidity peaks in February at around 76.05% and drops to its lowest in November at approximately 70.4%.

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