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Chicago in December

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

35.4 °F

Average:

41.0 °F

Maximum:

47.9 °F

Water temperature in Chicago in December

In the city of Chicago, the month of December is too cold for swimming. The minimum recorded temperature during this month was 35.4°F on December 25, 2019, with an average temperature being 41.0°F and a maximum temperature reaching 47.9°F on December 1, 2016.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. Throughout the month of December, the water temperature gradually gets colder. Starting with an average temperature of 43.6°F at the beginning of the month, it steadily decreases to around 38.7°F by the end.
Date 10 years average 2023 2022
Dec 1 44.3°F 45.3°F 44.4°F
Dec 2 44.2°F 45.3°F 44.5°F
Dec 3 44.0°F 45.3°F 44.3°F
Dec 4 43.8°F 45.2°F 43.5°F
Dec 5 43.7°F 45.0°F 43.1°F
Dec 6 43.6°F 45.0°F 43.4°F
Dec 7 43.7°F 45.2°F 43.5°F
Dec 8 43.0°F 43.4°F 42.6°F
Dec 9 42.7°F 43.2°F 42.4°F
Dec 10 42.5°F 43.8°F 42.6°F
Dec 11 42.3°F 43.5°F 42.2°F
Dec 12 41.7°F 43.0°F 41.7°F
Dec 13 41.4°F 42.5°F 41.3°F
Dec 14 41.0°F 41.8°F 40.8°F
Dec 15 41.2°F 41.4°F 40.7°F
Dec 16 40.8°F 41.3°F 40.9°F
Dec 17 41.0°F 41.4°F 40.9°F
Dec 18 41.0°F 41.9°F 40.6°F
Dec 19 40.9°F 41.9°F 41.4°F
Dec 20 40.4°F 41.4°F 41.5°F
Dec 21 40.3°F 41.7°F 41.5°F
Dec 22 39.5°F 40.7°F 41.1°F
Dec 23 39.2°F 40.0°F 40.3°F
Dec 24 39.0°F 39.2°F 39.5°F
Dec 25 39.0°F 40.5°F 38.8°F
Dec 26 38.4°F 39.7°F 38.0°F
Dec 27 38.2°F 40.3°F 37.2°F
Dec 28 37.7°F 40.8°F 36.8°F
Dec 29 37.9°F 40.6°F 37.4°F
Dec 30 38.2°F 40.5°F 37.5°F
Dec 31 38.1°F 40.3°F 38.0°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. December's average temperature is a slight drop from November's average of 49.5°F. In January, the temperature is expected to decrease further, potentially averaging around 35.1°F.