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Top ten warmest Octobers, warmest year-to-date in Milwaukee

October 2024 ranks in the top ten warmest Octobers on record for Milwaukee, adding to an exceptionally warm year
People at Lake Michigan on an 80° day in October
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We've had a mild start to fall here in Southeast Wisconsin. Both September and October brought above-normal temperatures, and we may do it again in November.

Looking specifically at October, the average monthly temperature came in a full 5° warmer than normal. That makes this October the 7th warmest on record for Milwaukee, with records dating back 154 years.

The average temperature is calculated by taking the high and low for a day, adding them together, and dividing by two.

This number is compared to the average for the date, resulting in a departure number, which shows how close the temperature is to the "normal" for that date. The number will be either above, below, or at average.

We can do this for the entire calendar month to get the average monthly temperature.

October2024WeatherData.PNG
October Weather Data in Milwaukee

The warmest high Milwaukee saw in October was 82° on the 11th of the month. The coldest temperature was 36°, on both the 16th and the 24th. While most inland locations saw their first frost and freeze in October, Milwaukee remained too warm.

October 2024 Temp Recap.JPG
7th warmest October on record in Milwaukee

Taking a quick look back at September, it too was above normal. The September 2024 average temperature was 3° above normal. Putting September and October together, so far, this is the 3rd warmest fall on record.

November is the last month of climatological fall, and it may very well be above normal too. The Climate Prediction Center temperature outlook for November shows Wisconsin leaning above normal.

November 2024 Temperature Outlook
November 2024 Temperature Outlook

To take this one more step, looking at 2024 so far, this is THE warmest year on record for Milwaukee. This means through the first 10 months of the year, it has never been warmer than it has been this year, going back 154 years.

Through November 1st, the year-to-date average temperature is running 3.3° above normal.

Year-To-Date Milwaukee
2024 is the warmest year-to-date in Milwaukee

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