MILWAUKEE - Weather History and Averages

Station: MILWAUKEE (2006 to 2025)
Country: US
State: WI
Latitude: 43.05
Longitude: -87.88

High Temperatures

On average, the day with the warmest high temperature in MILWAUKEE is July 26 at an average of 79.8 °F (26.5 °C).

On average, the day with the coldest high temperature in MILWAUKEE is January 21 at an average of 26.7 °F (-3.0 °C).

Records

The warmest recorded high temperature in MILWAUKEE was 98.6 °F (37.0 °C) on August 23 in the year 2023 at MILWAUKEE — Integrated Surface Dataset (ISD) station ID: 997342 .

The coldest recorded high temperature in MILWAUKEE was -3.8 °F (-19.9 °C) on January 31 in the year 2019 at MILWAUKEE — Integrated Surface Dataset (ISD) station ID: 997342 .

Low Temperatures

On average, the day with the warmest low temperature in MILWAUKEE is August 2 at an average of 68.0 °F (20.0 °C).

On average, the day with the coldest low temperature in MILWAUKEE is January 21 at an average of 16.8 °F (-8.4 °C).

Records

The warmest recorded low temperature in MILWAUKEE was 83.8 °F (28.8 °C) on July 21 in the year 2011 at MILWAUKEE — Integrated Surface Dataset (ISD) station ID: 997342 .

The coldest recorded low temperature in MILWAUKEE was -20.0 °F (-28.9 °C) on January 30 in the year 2019 at MILWAUKEE — Integrated Surface Dataset (ISD) station ID: 997342 .

When you are gardening in MILWAUKEE, consider the chance that the weather may freeze and harm your plants. There is a greater than 5% chance of temperatures dropping below freezing in 174 of 366 days per year in MILWAUKEE.

According to the USA National Weather Service:

Freeze occurs when the temperature drops to 32° Fahrenheit or lower. A freeze will result in significant damage to many unprotected plants, especially if the temperature remains at-or-below freezing for several hours.

Last freeze

In MILWAUKEE during the spring season, the average last freeze date is no freezing temperatures all season. Expect^* the last freeze date after

April 16 in one of every two years (50%),
April 25 in one of every ten years (10%),
May 1 in one of every twenty years (5%),
May 17 in one of every hundred years (1%).

First freeze

In MILWAUKEE during the autumn (fall) season, the average first freeze date is no freezing temperatures all season. Expect^* the first freeze date before

November 1 in one of every two years (50%),
October 17 in one of every ten years (10%),
October 13 in one of every twenty years (5%),
October 9 in one of every hundred years (1%).

Hard Freeze

According to the USA National Weather Service:

Hard freeze typically occurs when the temperature reaches 28° Fahrenheit or lower for at least an hour (or more). This usually means that most seasonal vegetation will be destroyed. In addition, there is a possibility of damage to unprotected outdoor plumbing/un-drained sprinkler systems etc.

Last hard freeze

In MILWAUKEE during the spring season, the average last hard freeze date is no freezing temperatures all season. Expect^* the last hard freeze date after

April 6 in one of every two years (50%),
April 16 in one of every ten years (10%),
April 18 in one of every twenty years (5%),
April 25 in one of every hundred years (1%).

First hard freeze

In MILWAUKEE during the autumn (fall) season, the average first hard freeze date is no freezing temperatures all season. Expect^* the first hard freeze date before

November 11 in one of every two years (50%),
October 29 in one of every ten years (10%),
October 25 in one of every twenty years (5%),
October 13 in one of every hundred years (1%).

Frost

Frost can happen at temperatures above freezing and damage delicate plants. According to the USA National Weather Service:

Frost occurs when there is a solid deposition of water vapor from the air. Frost will form when solid surfaces are cooled below the dew point. An air temperature range of 33°- 36° Fahrenheit (or colder), along with light winds, is usually needed to initiate frost formation. At least minor damage is possible to plants. One must keep in mind that frost is not guaranteed if the air is very dry and/or winds are roughly 8+ MPH.

Last frost

In MILWAUKEE during the spring season, the average last frost date is no freezing temperatures all season. Expect^* the last frost date after

April 27 in one of every two years (50%),
May 15 in one of every ten years (10%),
May 20 in one of every twenty years (5%),
May 31 in one of every hundred years (1%).

First frost

In MILWAUKEE during the autumn (fall) season, the average frost date is no frost all season. Expect^* the first frost date before

October 22 in one of every two years (50%),
October 11 in one of every ten years (10%),
October 8 in one of every twenty years (5%),
October 2 in one of every hundred years (1%).

Details

If you would like to see the temperatures for specific days, you can click on the corresponding links below:

January
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30	31

February
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29

March
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30	31

April
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30

May
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30	31

June
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30

July
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30	31

August
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30	31

September
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30

October
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30	31

November
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30

December
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30	31