Weather in Connecticut

Calculated from weather data of Bradley International Airport (KBDL) between 2020 and 2024.

Maximum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	38.0	38.0	43.0	35.0	36.0	42.0
February	42.0	44.0	44.0	42.0	35.0	42.0
March	49.0	53.0	49.0	51.0	53.0	53.0
April	60.0	62.0	65.0	60.0	63.0	55.0
May	72.0		73.0	74.0	71.0	70.0
June	80.0		78.0	80.0	83.0	83.0
July	86.0		86.0	87.0	81.0	89.0
August	84.0		80.0	87.0	83.0	85.0
September	76.0		76.0	75.0	76.0	76.0
October	65.0		67.0	64.0	66.0	63.0
November	52.0		50.0	56.0	52.0	57.0
December	42.0		46.0	44.0	46.0	42.0
Average	61.0	49.0	63.0	64.0	62.0	63.0

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	23.0	26	31	17	23	26
February	25.0	27	25	23	23	27
March	31.0	37	32	32	31	34
April	41.0	42	44	41	41	38
May	50.0		46	54	49	48
June	59.0		58	59	62	59
July	66.0		68	66	65	68
August	64.0		63	66	67	64
September	57.0		58	56	58	55
October	47.0		48	45	49	46
November	34.0		32	38	33	37
December	28.0		34	29	32	28
Average	43.0	33.0	45.0	44.0	44.0	44.0

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2024	2023	2022	2021	2020
86 °F or warmer	0	27	39	29	45
77 °F or warmer	1	105	108	88	103
68 °F or warmer	10	158	164	163	153
32 °F or colder	48	81	93	104	94

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	15.3	23	22	16	8	8
February	15.7	10	17	20	24	15
March	13.4	18	15	15	7	13
April	16.3	15	13	13	13	21
May	9.3		6	5	11	5
June	6.5		5	7	6	4
July	6.7		10	4	15	3
August	5.9		13	2	8	5
September	9.6		19	11	11	5
October	12.9		12	8	12	17
November	10.4		8	11	6	11
December	15.7		18	17	12	14
Average	11.6	16.2	12.6	10.0	10.7	9.4

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (miles per hour)

Month	Average	2024	2023	2022	2021	2020
January	8.9	8	8	10	9	9
February	9.5	10	10	10	9	8
March	10.6	11	10	10	11	10
April	10.2	10	9	11	11	12
May	8.9		9	9	9	10
June	8.1		8	8	8	8
July	7.2		7	8	7	8
August	7.3		7	8	7	8
September	7.5		8	7	8	8
October	8.0		7	8	8	8
November	8.7		8	9	8	9
December	8.2		7	10	7	10
Average	8.7	9.5	7.9	8.8	8.4	8.9

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	NW	NW	NW	NW	W
February	NW	NW	W	NW	W
March	NW	NW	NW	W	NW
April	NW	W	NW	NW	NW
May		NW	SE	NW	W
June		W	W	SW	SW
July		S	SW	NW	SW
August		W	SW	SW	W
September		N	NW	W	SW
October		W	N	N	W
November		NW	W	W	W
December		NW	NW	NW	W

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

Connecticut weather Q&A

What is the warmest month in Connecticut?

The warmest month is July with an average temperature of 86 °F over the past years.

What is the coldest month in Connecticut?

The coldest month is January with an average daytime temperature of 38 °F in the past few years.

Which month is the wettest in Connecticut?

Chance of precipitation is the highest in April with a probability of around 16.4 %.

Which month is the driest in Connecticut?

The least rainfall and snow can be expected in August. The probability is about 5.9 %.