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

Hartford Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	-2.4312500000000004	-5.9		4.68125	-2.1
	-4.09375	-8.3		3.65625	-2.2
	-5.1625000000000005	-7.4		1.29375	-0.1
	-5.0687500000000005	-5.3		2.60625	1
	-5.15	-9.2		1.9999999999999998	-4.4
	-5.043749999999999	-2.3		1.4249999999999998	0.4
	-7.237500000000001	-0.2		0.36874999999999986	5.9
	-7.15	-0.4		0.3312499999999998	5.6
	-6.35625	-4		0.8687499999999999	5.3
	-5.0874999999999995	2.4		3.3	7.6
	-3.8312500000000003	-0.2		3.4124999999999996	4.4
	-2.2	-3.3		5.8875	2.5
	-3.69375	-0.7		5.24375	5.9
	-4.99375	3.1		1.9499999999999997	7.1
Jan.	-5.5875	-6		1.6437500000000003	3.9
	-5.1125	-6.8		2.6499999999999995	0
	-4.9375	-1.5		1.875	1.5
	-5.0874999999999995	-2.5		2.16875	0.6
	-4.268749999999999	-5		2.69375	0
	-6.218749999999999	-8.8		1.5562500000000004	-3.4
	-7.84375	-9.6		-1.2875	-0.2
	-8.643749999999999	-1.1		-0.19374999999999987	3.8
	-7.406249999999999	-6.2		0.7812500000000002	-0.2
	-6.781250000000001	-15.5		0.8437500000000003	-10.3
	-5.39375	-11.5		2.6	-9.8
	-4.949999999999998	-8.9		1.69375	-2.9
	-4.48125	-12.1		3.3750000000000004	-5.7
	-5.175	-12.9		1.55625	-3.5
	-6.556250000000001	-12.2		1.14375	-4.7
	-7.668750000000001	-15		0.89375	-7.8
	-7.975	-15.9		1.04375	-5.2
	-6.1937500000000005	-11.7		2.9937500000000004	-4.6
	-5.881249999999999	-11.9		2.58125	0.5
	-5.762499999999999	-15.1		2.0124999999999997	-2
	-5.800000000000001	-6.7		3.537500000000001	0.1
	-6	-9.2		3.2687499999999994	-2.7
	-6.49375	-13.1		1.93125	-3.3
	-5.818749999999999	-14.8		2.90625	-2.2
	-5.6312500000000005	-19.2		2.7375000000000003	-8.5
	-6.949999999999999	-15.5		1.0125	-0.9
	-5.512499999999999	-10.4		2.8625000000000003	-0.5
	-6.037499999999999	-3.7		2.0812500000000003	1.7
	-7.206249999999999	-5.3		2.43125	1.8
	-7.2	-8.6		1.1	0.7
	-7.162500000000001	-4.9		1.55625	3.4
Feb.	-7.2437499999999995	-5.4		2.8624999999999994	3.7
	-4.281250000000001	-3		3.975	5.8
	-5.343750000000001	-0.5		3.1875	4.5
	-6.7250000000000005	-2.1		3.0687499999999996	1.2
	-6.325	-2.6		3.0999999999999996	3.5
	-5.5249999999999995	-0.3		3.249999999999999	1
	-4.531250000000001	-0.5		4.812500000000001	2
	-4.21875	-0.8		5.918750000000001	1.7
	-2.675	-4.3		5.66875	-0.7
	-3.1	-6.6		5.612499999999999	-0.6
	-3.1687499999999993	-10.6		4.987499999999999	2.2
	-4.68125	-3		3.5249999999999995	2.2
	-4.44375	-6.6		4.76875	2.5
	-3.6562499999999996	-1.8		4.75625	2.8
	-3.4937500000000004	-4.7		5.69375	-0.6
	-3.70625	-9.8		4.775	-1.4
	-5.18125	-8.7		3.7687500000000003	1
	-3.5875	-1.1		4.575000000000001	7.2
	-3.731250000000001	-2.5		5.1125	1.8
	-3.8562499999999997	0.7		5.4625	2.6
	-3.9875	0.6		5.637499999999998	4.6
	-2.6125	4.8		7.174999999999999	10.8
	-2.1437500000000003	0.4		8.70625	12.7
	-1.49375	2.2		9.5375	8.6
	0.35624999999999996	5.8		9.84375	7.5
	-0.39375000000000004	-1.2		8.4375	10.9
	-1.79375	-2.4		7.2375	3.3
	-0.28125	1.3		8.799999999999999	7.2
Mar.	0.4125	-1.4		8.3125	5.1
	-0.7624999999999998	3.6		8.21875	13.9
	-0.8812500000000003	-1.3		9.35	14.3
	-0.3249999999999996	-4.9		10.11875	0.6
	-0.625	-3		8.618749999999999	5.7
	-0.17500000000000027	-0.8		9.9375	8.8
	0.74375	3.1		10.2125	9.7
	-0.44375	4.8		9.3	8.4
	-1.03125	1.2		8.237499999999999	5.6
	0.375	-1.2		9.15625	8
	0.4437500000000001	0.9		9.95625	8.7
	0.10000000000000014	4.5		9.587499999999999	14.2
	-1.1500000000000004	3.3		9.018749999999999	11.7
	0.1874999999999998	-2.1		9.35	1.9
	1.4562499999999998	-3.3		9.975000000000001	8.5
	1.35	4.1		9.99375	15.3
	1.525	10		11.143749999999999	19
	1.575	10.7		11.3125	25
	0.525	3.6		10.925000000000002	5.8
	1.90625	4		12.25	18.5
	1.9562499999999998	5.9		11.64375	24.8
	2.15625	5.4		11.08125	14.2
	1.88125	2.1		12.024999999999999	10.1
	2.46875	0.6		12.331250000000004	9.6
	3.3812499999999996	-1.6		12.943749999999998	13.8
	2.2749999999999995	-1.7		12.987499999999999	14.8
	3.1312499999999996	3.1		14.11875	21.7
	3.9000000000000004	7.3		15.462499999999999	17.4
	5.08125	1.8		14.443749999999996	18.5
	5.85	6.8		16.36875	28.6
	6.7749999999999995	13.7		18.36875	31.5
Apr.	4.8125	15		15.700000000000001	31.3
	4.89375	18.5		14.40625	33.4
	5.225	15.4		14.606250000000003	23.3
	3.61875	10.2		15.124999999999998	19.5
	5.45	3.5		14.65625	10.5
	4.83125	-0.1		16.318749999999998	9.1
	4.55	-0.4		15.843750000000002	14.2
	5.20625	2.4		16.33125	9
	4.906249999999999	3.3		15.4875	23.3
	4.981249999999999	7.4		16.624999999999996	18.3
	5.8875	2.6		14.84375	14.6
	5.46875	5.2		15.7875	17.5
	5.1937500000000005	3.9		14.374999999999998	22.8
	5.2875	6		16.506249999999998	21.9
	6.25	6.3		16.98125	23.1
	6.3187500000000005	9.1		15.95	13
	6.4125000000000005	4.7		18.09375	19.9
	8.475	7.4		19.88125	13.2
	8.6125	2.9		19.4625	14.8
	9.125	4.7		18.549999999999997	23.8
	8.275	10.3		17.631249999999998	28.6
	8.225	14.1		17.537499999999998	25.4
	7.78125	8.7		19.04375	19
	8.26875	6.3		19.2375	17
	7.65625	6.6		17.30625	20.1
	8.193750000000001	11.4		19.018749999999997	21.9
	8.325000000000001	9.7		19.23125	20.2
	7.699999999999999	5.4		19.25625	20.5
	7.843750000000001	8.1		18.518749999999997	23.2
	8.06875	12.3		19.450000000000003	16.2
May	9.568750000000001	8.8		21.3875	18.3
	11.4375	8.5		21.712500000000006	29
	10.53125	15.4		21.437500000000004	34
	9.98125	16.4		20.918750000000003	34.9
	9.956249999999999	20.1		19.981250000000003	37.9
	10.456250000000002	15.8		22.131249999999994	32.7
	10.30625	9.8		23.225	25.6
	11.15	8.5		21.45	23.9
	11.387500000000001	8.8		22.031249999999996	19
	10.999999999999998	9.5		22.55	12.4
	10.49375	12.2		22.18125	22.6
	12.049999999999999	12.4		25.324999999999996	30.6
	13.037500000000001	15.9		25.425	33
	12.743749999999999	14.4		23.381250000000005	23.9
	13.156249999999998	11.8		24.2375	24.7
	13.293750000000001	6.9		25.075	12.8
	13.2	4.6		25.4875	25.3
	12.393749999999999	10.9		23.86875	21.6
	12.825000000000001	7		24.349999999999998	27.1
	11.725000000000001	10.6		23.50625	31.8
	11.956250000000002	13.8		23.13125	34.4
	12.34375	14.9		24.21875	35.3
	13.400000000000002	17.2		24.150000000000006	35.9
	13.562499999999998	16.5		24.24375	30.3
	13.88125	14.3		25.218749999999996	29.6
	13.46875	13.2		24.512500000000003	32.1
	13.3875	16.7		24.5625	32.7
	13.45625	20.3		24.71875	37.5
	13.937500000000002	21.4		24.06875	37
	14.781250000000002	18.1		24.081250000000004	34.2
	13.081249999999999	17.1		23.962499999999995	34.7
Jun.	13.00625	16.2		24.2375	26.7
	13.31875	12		24.8625	28.1
	14.49375	13.3		25.64375	29.7
	14.581249999999999	17.5		26.04375	33.1
	15.06875	16.6		27.41875	29.1
	14.85625	15.8		27.29375	29.3
	15.918749999999998	13.8		28.43125	29.4
	16.368750000000002	14.5		27.831249999999997	26.6
	16.86875	17.3		28.1375	23.2
	16.768750000000004	14		29.35	30.2
	17.137500000000003	14.9		28.775000000000002	30.9
	16.28125	18.4		28.237499999999997	28.7
	16.525	19		26.425000000000004	29.9
	16.73125	17.3		27.406250000000004	32.4
	16.875	16.8		28.46875	34.5
	17.349999999999998	18		29.206249999999997	35.2
	17.856250000000003	20.2		29.18125	39
	18.043750000000003	23.7		28.5875	39.8
	17.54375	25.2		29.043750000000003	40.6
	17.237499999999997	24.6		28.48125	37.1
	17.587500000000002	20.3		30.275	33.4
	19.09375	17.1		31	21.2
	19.04375	16		30.29375	19.1
	19.675	16.3		29.9875	29.9
	18.93125	18.6		29.224999999999998	34.2
	18.425	22		28.7125	33.3
	18.54375	18.8		29.181250000000002	32.1
	19.175	16.2		29.537499999999998	32.5
	18.34375	17.4		29.375000000000004	32.7
	19.168750000000003	20.7		28.3	36.2
Jul.	19.15	22.6		29.987499999999997	34.4
	19.36875	19		30.124999999999996	34.5
	19.6875	17.1		30.718749999999996	32.9
	19.65625	17.3		29.30625	31.8
	19.34375	18.8		31.106250000000003	29.5
	19.725	14.7		30.993750000000002	30.8
	19.262499999999996	16.4		29.918750000000003	29.4
	18.575	18.8		29.84375	30.9
	18.625	15.6		29.04375	29
	18.962500000000002	13.7		29.08750000000001	31
	18.28125	14.5		27.237499999999997	30.7
	17.668750000000003	14.3		29.00625	30.8
	18.256249999999998	15.2		29.44375	30.1
	19.087500000000006	20.1		30.549999999999997	28.9
	18.975	19.3		29.750000000000004	24.8
	18.08125	18.9		28.837500000000002	26.4
	16.931250000000002	17.2		29.006249999999994	29.3
	17.8625	18.5		27.381250000000005	31.9
	17.668750000000003	21.9		28.49375	31.1
	17.79375	20		28.662499999999998	27.2
	18.893749999999997	17.2		29.5	30.5
	18.087500000000002	16.1		28.881250000000005	31.1
	17.687499999999996	22.7		29.2375	31.9
	18.325	24		27.85	35.8
	18.118750000000002	22.3		28.0375	33.9
	18.087500000000002	21.9		28.687499999999996	33.5
	17.974999999999998	17		29.16249999999999	34.1
	18.550000000000004	20.5		28.762500000000003	33.2
	18.174999999999997	18.8		29.187499999999996	32.7
	18.60625	20.1		27.668749999999996	30.5
	17.69375	17.4		28.15625	29.1
Aug.	17.36875		15.7	27.437500000000004		28.3
	17.325000000000003		13.3	27.874999999999996		29
	18.018749999999997		18.1	28.4625		25.6
	17.875		16.1	28.18125		29
	17.4125		15.2	28.2		30.7
	17.3375		19.2	28.28125		31.4
	16.875		16.3	27.687500000000004		30.2
	17.450000000000003		17.6	26.45625		24.9
	16.05		16.3	25.875		26.5
	15.862499999999999		16.4	26.856250000000003		27.4
	16.768749999999997		17.2	28.40625		28.1
	17.187499999999996		16.8	28.606250000000003		28.2
	16.625		16.5	27.224999999999998		27.5
	16.04375		16.4	27.168750000000003		26.9
	16.581249999999997		16.2	27.7		26.2
	16.737499999999997		15.9	27.718749999999996		27.7
	16.425		16.4	27.574999999999996		27.5
	15.618749999999999		16	26.493750000000002		26.3
	16.143749999999997		15.4	27.349999999999998		26.8
	15.768749999999999		15.3	26.812499999999996		26.8
	16		15.8	27.387500000000003		27.4
	16.2625		16.4	26.599999999999994		26.6
	16.075		16	25.4875		25.5
	15.21875		15.2	25.1		25
	15.393749999999999		15	25.799999999999997		25.9
	14.362499999999999		14.4	24.406250000000004		24.4
	14.55		14.3	24.225		23.5
	15.1875		14.1	25.781250000000004		25.1
	14.70625		14.6	24.76875		24.5
	14.181250000000002		14.6	24.35625		24.6
	13.625		14.1	24.45625		24.8
Sep.	13.699999999999998			25.031249999999996
	12.756250000000001			23.493750000000006
	12.15			23.275
	12.88125			23.61875
	13.187500000000002			23.4125
	12.16875			22.44375
	12.6625			23.068749999999998
	12.687499999999998			23
	12.862499999999997			23.04375
	12.687499999999998			23.025000000000002
	12.487500000000002			22.893750000000008
	13.156249999999998			23.287499999999998
	12.362499999999999			23.2125
	13.512499999999998			23.2375
	13.299999999999999			21.799999999999997
	11.993749999999997			20.4375
	11.025			19.8875
	10.712500000000002			19.65
	10.46875			19.04375
	11.29375			19.8875
	11.200000000000001			19.812500000000004
	10.625000000000002			20.962500000000002
	11.24375			22.3375
	11.0125			19.825000000000003
	9.80625			18.2625
	9.249999999999998			18.431250000000002
	9.8375			18.975
	8.606250000000001			18.668749999999996
	8.5875			17.88125
	8.9625			17.825000000000003
Oct.	9.018749999999999			18.337500000000002
	8.31875			17.2625
	7.306249999999999			16.45625
	6.3062499999999995			15.674999999999999
	6.05625			16.425
	7.993749999999999			17.862500000000004
	8.193750000000001			18.64375
	8.28125			17.53125
	7.70625			16.175
	7.56875			15.537499999999998
	7.85			15.91875
	7.481249999999999			14.750000000000004
	6.625			14.63125
	6.106249999999999			15.131250000000001
	6.381249999999998			12.975
	5.468749999999999			13.168750000000001
	5.737500000000001			14.175
	5.3062499999999995			13.637500000000003
	5.10625			14
	3.8			13.568750000000001
	3.85625			12.45
	4.2625			13.100000000000001
	5.581249999999999			13.906249999999998
	5.18125			14.25
	3.2624999999999997			11.1
	3.0062499999999996			12.4
	3.1			12.4625
	2.7999999999999994			11.443750000000001
	3.30625			12.774999999999999
	2.15625			9.9875
	0.8124999999999999			8.525
Nov.	1.2000000000000002			9.28125
	2.15625			9.9125
	1.7562500000000003			9.9
	1.38125			9.406250000000002
	0.73125			8.631250000000001
	0.6187499999999998			8.36875
	0.08125000000000004			8.09375
	1.1125			7.762500000000001
	0.35624999999999996			7.6187499999999995
	-0.15625000000000003			7.8375
	1.1500000000000001			9.1
	0.9249999999999999			9.18125
	1.3375000000000001			8.90625
	0.28125000000000006			6.862500000000001
	-0.19999999999999998			6.9125
	-1.025			7.36875
	0.36874999999999986			7.63125
	0.7312500000000002			6.968749999999999
	0.26249999999999984			7.2562500000000005
	-1.0812500000000003			6.075
	-0.4625			6.95625
	0.14999999999999997			7.39375
	-1.6			4.531250000000002
	-3.05625			3.1687499999999997
	-1.4999999999999998			5.018749999999999
	-1.4374999999999998			5.23125
	-1.6999999999999997			5.4437500000000005
	-2.45			5.906249999999999
	-2.7375000000000003			4.7250000000000005
	-2.28125			4.9125000000000005
Dec.	-2.34375			5.08125
	-2.0125000000000006			3.6875
	-2.7250000000000005			4.175
	-1.9249999999999996			4.2125
	-3.593749999999999			3.66875
	-3.56875			3.0500000000000003
	-2.1624999999999996			4.381249999999999
	-0.40625000000000006			6.3375
	-2.08125			5.525
	-2.3625000000000003			3.724999999999999
	-2.6624999999999996			3.9125000000000005
	-2.3			4.1812499999999995
	-3.0749999999999997			4.13125
	-2.9562500000000003			5.362499999999999
	-2.7062500000000003			3.20625
	-2.9437499999999996			3.25
	-2.2733333333333334			3.693333333333334

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

41°C

Highest Temp

3 Jul. 26

-19°C

Lowest Temp

8 Feb. 26

Seasonal Breakdown

Hottest MonthAugust31.89°C

Coldest MonthFebruary-7.08°C

Wettest MonthMarch9.32mm

Windiest MonthMarch18.39km/h

Hartford 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 Hartford historically?

July is historically Hartford's hottest month, with average maximum temperatures around 30°C. During peak heatwave events, the highest recorded temperatures have reached 41°C on 2026-07-03.

2. What is the coldest month in Hartford historically?

February is Hartford's coldest month, with average minimum temperatures around -5°C. The all-time record low of -25°C was recorded on 2016-02-14.

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

Hartford's average annual rainfall is approximately 1290.5mm, based on records spanning 17 years.

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

Hartford historically records approximately 170.7 rainy days per year. December has the highest number of rain days at an average of 15.3 days.

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

The all-time highest temperature recorded in Hartford is 41°C on 2026-07-03.

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

The all-time lowest temperature recorded in Hartford is -25°C on 2016-02-14.

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

Hartford experiences its strongest winds during March. The historic gust record of 43.9 kph was recorded on 2012-10-29.

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

Usually, Hartford's humidity peaks in February at around 77.9% and drops to its lowest in April at approximately 69.2%.

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