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Chicago in May

Find out everything about the water temperature in Chicago in May. Average, minimum and maximum recorded temperatures as well as daily temperature in May for the last two years. Compare the current month's water temperature data with other months of the year.
Water temperature in May
Minimum:

42.4 °F

Average:

50.5 °F

Maximum:

64.9 °F

Water temperature in Chicago in May

In the city of Chicago, the month of May is too cold for swimming. The minimum recorded temperature during this month was 42.4°F on May 1, 2018, with an average temperature being 50.5°F and a maximum temperature reaching 64.9°F on May 30, 2018.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. Throughout the month of May, the water temperature gradually gets warmer. Starting with an average temperature of 46.8°F at the beginning of the month, it steadily increases to around 54.0°F by the end.
Date 10 years average 2024 2023
May 1 45.3°F 44.8°F 46.4°F
May 2 45.7°F 45.4°F 46.2°F
May 3 46.0°F 46.4°F 45.9°F
May 4 46.2°F 48.5°F 45.5°F
May 5 46.5°F 49.5°F 44.6°F
May 6 46.9°F 50.8°F 45.9°F
May 7 46.9°F 51.6°F 45.6°F
May 8 47.5°F 53.2°F 46.0°F
May 9 48.0°F 53.4°F 46.3°F
May 10 48.8°F 53.5°F 48.5°F
May 11 48.6°F 53.3°F 49.3°F
May 12 49.2°F 53.9°F 51.4°F
May 13 49.5°F 54.1°F 52.1°F
May 14 49.6°F 54.2°F 51.1°F
May 15 50.6°F 56.1°F 51.0°F
May 16 51.0°F 56.8°F 51.1°F
May 17 51.0°F 55.5°F 51.8°F
May 18 51.1°F 56.3°F 51.5°F
May 19 51.4°F 58.4°F 52.0°F
May 20 51.9°F 60.0°F 53.5°F
May 21 51.6°F 58.0°F 52.9°F
May 22 52.1°F 60.1°F 54.3°F
May 23 52.7°F 59.7°F 55.1°F
May 24 53.5°F 60.0°F 55.9°F
May 25 53.7°F 59.7°F 55.7°F
May 26 54.1°F 59.5°F 55.1°F
May 27 55.0°F 58.9°F 55.7°F
May 28 54.8°F 58.4°F 54.9°F
May 29 55.2°F 60.4°F 54.4°F
May 30 55.4°F 59.4°F 55.7°F
May 31 55.6°F 59.4°F 56.9°F

Water temperature in Chicago by month

In Chicago, there are only 5 days through the year when the water is warm enough to be comfortable for swimming. The warmest water in Chicago was recorded on July 10, 2020, reaching a 78.0°F. While the coldest temperature occurred on January 4, 2014, dipping to 32.0°F. The average readings by season are 36.6°F in Winter, 42.8°F in Spring, 68.3°F in Summer, and 59.3°F in Autumn. The average temperature in May is slightly warmer than April's average of 41.9°F. And in June, the temperature is expected to rise further, potentially reaching an average of 61.6°F.