Weather in Wisconsin

Calculated from weather data of General Mitchell International Airport (KMKE) between 2020 and 2024.

Maximum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	33.0	32.0	37.0	28.0	33.0	36.0
February	37.0	46.0	40.0	36.0	27.0	35.0
March	45.0	48.0	43.0	46.0	50.0	47.0
April	55.0		60.0	53.0	58.0	52.0
May	66.0		67.0	69.0	68.0	63.0
June	78.0		76.0	80.0	82.0	79.0
July	82.0		82.0	82.0	81.0	84.0
August	81.0		80.0	81.0	84.0	82.0
September	74.0		75.0	74.0	77.0	71.0
October	61.0		63.0	62.0	65.0	57.0
November	47.0		51.0	52.0	48.0	56.0
December	39.0		44.0	38.0	42.0	38.0
Average	56.0	42.0	60.0	59.0	60.0	58.0

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	22.0	24	28	14	24	25
February	22.0	29	25	19	15	22
March	31.0	35	31	30	35	34
April	39.0		41	39	42	37
May	50.0		49	53	51	48
June	61.0		60	62	65	61
July	67.0		67	67	67	71
August	66.0		66	67	67	66
September	60.0		60	60	61	57
October	47.0		50	45	55	42
November	34.0		36	37	34	40
December	28.0		36	30	30	27
Average	42.0	30.0	46.0	44.0	45.0	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	17	23	32	20
77 °F or warmer	0	77	92	96	86
68 °F or warmer	2	140	142	150	132
32 °F or colder	45	71	88	95	91

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	18.0	23	28	10	15	14
February	11.8	3	19	11	9	9
March	11.2	13	20	19	5	11
April	12.4		12	15	7	13
May	8.2		8	6	7	11
June	5.3		5	6	3	5
July	2.8		5	5	1	1
August	3.2		3	3	2	1
September	6.7		10	7	1	11
October	10.0		15	5	10	10
November	10.4		10	19	9	7
December	11.9		17	21	9	7
Average	9.4	13.1	11.9	9.8	5.9	8.0

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	10.6	11	10	12	10	10
February	11.7	11	13	13	10	12
March	12.0	13	11	11	13	12
April	12.0		13	13	11	12
May	10.8		10	11	11	11
June	10.2		9	11	10	10
July	9.7		9	10	10	9
August	9.6		11	10	9	9
September	10.2		10	10	11	11
October	11.2		12	10	11	12
November	11.5		11	13	12	13
December	10.8		10	12	12	11
Average	10.9	11.6	10.6	11.3	10.7	10.9

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	W	W	W	NW	W
February	W	W	W	W	W
March	NW	N	NW	SW	SW
April		SW	SW	SE	NW
May		NE	SE	SE	NE
June		NE	W	S	SE
July		E	W	N	E
August		NE	N	S	S
September		SE	NW	W	SW
October		W	SW	NE	W
November		W	SW	W	SW
December		W	S	SW	W

Prevailing wind direction

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

Wisconsin weather Q&A

What is the warmest month in Wisconsin?

The warmest month is July with an average temperature of 82 °F over the past years.

What is the coldest month in Wisconsin?

The coldest month is January with an average daytime temperature of 33 °F in the past few years.

Which month is the wettest in Wisconsin?

Chance of precipitation is the highest in January with a probability of around 18.0 %.

Which month is the driest in Wisconsin?

The least rainfall and snow can be expected in July. The probability is about 2.9 %.