|
Typical Waterloo December Weather 1991–2020 |
||
|---|---|---|
| Average daily high | 32.6 °F | |
| Average daily low | 15.7 °F | |
| Average monthly precipitation | 1.4 inches | |
| Average monthly snow | 9.9 inches | |
| Daily chance of precipitation | 27.2% | |
| Daily chance of snow | 19.9% | |
|
Waterloo December Weather Records 1895–2024 |
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|---|---|---|
| Highest temperature | 74 °F | December 15, 2021 |
| Lowest temperature | -29 °F | December 25, 2000 |
| Highest daily low | 55 °F | December 4, 2001 |
| Lowest daily high | -15 °F | December 24, 1983 |
| Hottest average high temperature | 43.5 °F | 2023 |
| Coldest average high temperature | 14.4 °F | 1983 |
| Most daily precipitation | 3.3 inches | December 13, 2015 |
| Most monthly precipitation | 5.9 inches | 2015 |
| Most daily snow | 10.4 inches | December 1, 1985 |
| Most monthly snow | 33.9 inches | 2000 |
| Day | Average (°F) | Record (°F) | ||
|---|---|---|---|---|
| High | Low | High | Low | |
| December 1 | 38.3 | 20.6 | 63 | -5 |
| December 2 | 37.9 | 20.2 | 65 | -16 |
| December 3 | 37.3 | 19.7 | 67 | -18 |
| December 4 | 36.9 | 19.2 | 67 | -7 |
| December 5 | 36.4 | 18.8 | 67 | -16 |
| December 6 | 36.0 | 18.6 | 60 | -14 |
| December 7 | 35.5 | 18.3 | 57 | -19 |
| December 8 | 35.1 | 18.0 | 65 | -18 |
| December 9 | 34.7 | 17.6 | 61 | -16 |
| December 10 | 34.2 | 17.1 | 60 | -29 |
| December 11 | 33.9 | 16.9 | 61 | -18 |
| December 12 | 33.6 | 16.6 | 58 | -15 |
| December 13 | 33.3 | 16.4 | 57 | -26 |
| December 14 | 33.1 | 16.2 | 57 | -21 |
| December 15 | 32.8 | 15.9 | 74 | -21 |
| December 16 | 32.5 | 15.7 | 63 | -20 |
| December 17 | 32.1 | 15.4 | 58 | -16 |
| December 18 | 31.7 | 15.1 | 57 | -23 |
| December 19 | 31.4 | 14.8 | 52 | -25 |
| December 20 | 31.3 | 14.6 | 53 | -20 |
| December 21 | 31.0 | 14.4 | 56 | -27 |
| December 22 | 30.9 | 14.2 | 55 | -23 |
| December 23 | 30.6 | 13.9 | 52 | -25 |
| December 24 | 30.3 | 13.7 | 57 | -27 |
| December 25 | 30.2 | 13.5 | 59 | -29 |
| December 26 | 30.1 | 13.3 | 55 | -28 |
| December 27 | 29.9 | 13.1 | 53 | -28 |
| December 28 | 29.8 | 13.0 | 62 | -22 |
| December 29 | 29.5 | 12.8 | 55 | -23 |
| December 30 | 29.3 | 12.4 | 60 | -19 |
| December 31 | 29.0 | 12.1 | 59 | -23 |