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Cleveland in December

Find out everything about the water temperature in Cleveland 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:

34.2 °F

Average:

41.7 °F

Maximum:

49.3 °F

Water temperature in Cleveland in December

In the city of Cleveland, the month of December is too cold for swimming. The minimum recorded temperature during this month was 34.2°F on December 28, 2025, with an average temperature being 41.7°F and a maximum temperature reaching 49.3°F on December 2, 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 45.1°F at the beginning of the month, it steadily decreases to around 38.5°F by the end.
Date 10 years average 2025 2024
Dec 1 46.2°F 45.2°F 49.3°F
Dec 2 46.2°F 44.8°F 49.1°F
Dec 3 45.8°F 45.0°F 48.9°F
Dec 4 45.8°F 44.8°F 48.4°F
Dec 5 45.4°F 44.8°F 48.2°F
Dec 6 45.3°F 42.8°F 48.0°F
Dec 7 45.2°F 42.3°F 47.2°F
Dec 8 44.3°F 41.9°F 45.8°F
Dec 9 43.5°F 41.7°F 45.0°F
Dec 10 43.1°F 41.3°F 44.3°F
Dec 11 42.8°F 40.9°F 43.7°F
Dec 12 43.2°F 40.6°F 43.1°F
Dec 13 42.6°F 40.2°F 42.6°F
Dec 14 42.0°F 39.7°F 42.0°F
Dec 15 42.0°F 39.8°F 41.3°F
Dec 16 41.8°F 39.8°F 41.1°F
Dec 17 41.5°F 39.5°F 41.1°F
Dec 18 41.2°F 38.6°F 39.7°F
Dec 19 41.0°F 38.0°F 39.0°F
Dec 20 39.9°F 38.2°F 39.1°F
Dec 21 40.1°F 37.2°F 39.2°F
Dec 22 39.5°F 37.1°F 38.8°F
Dec 23 38.9°F 35.7°F 38.3°F
Dec 24 38.8°F 36.0°F 38.3°F
Dec 25 38.3°F 35.4°F 37.8°F
Dec 26 38.0°F 35.0°F 37.2°F
Dec 27 37.9°F 34.6°F 36.7°F
Dec 28 37.8°F 34.2°F 36.2°F
Dec 29 37.9°F 34.6°F 37.1°F
Dec 30 38.2°F 35.3°F 37.8°F
Dec 31 38.0°F 35.6°F 37.8°F

Water temperature in Cleveland by month

In Cleveland, the months July through August offer comfortable swimming conditions, which amounts to 67 swimming days. The warmest water in Cleveland was recorded on July 31, 2025, reaching a 82.4°F. While the coldest temperature occurred on February 14, 2016, dipping to 32.0°F. The average readings by season are 37.3°F in Winter, 45.3°F in Spring, 73.0°F in Summer, and 62.6°F in Autumn. December's average temperature is a slight drop from November's average of 51.8°F. In January, the temperature is expected to decrease further, potentially averaging around 36.0°F.