Waterloo, Sunday, 9 August, 00:42
Overcast. Feels like 66°. High 84°, low 66°.
In January, Waterloo, IA averages a high of 25.6° and a low of 10.3°. About 1.4 inches of precipitation fall over the month (7 wet days). The record high is 60.6° (1989) and the record low -34.2° (2019). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 25.5° | 11.3° | 18% | 45° (1998) | -22° (1974) |
| 2 | 25.9° | 11.5° | 25% | 51.4° (1998) | -17.9° (2018) |
| 3 | 26.8° | 11.3° | 22% | 51.8° (1998) | -19.8° (2014) |
| 4 | 25.2° | 10.4° | 22% | 50.7° (2007) | -19.8° (1999) |
| 5 | 25° | 9.5° | 13% | 53.4° (2012) | -27° (1999) |
| 6 | 23.2° | 9.9° | 27% | 47.7° (2012) | -28.7° (1988) |
| 7 | 21.7° | 7.3° | 15% | 49.3° (2003) | -21.8° (1971) |
| 8 | 24.1° | 7.9° | 17% | 53.8° (2003) | -17.7° (1986) |
| 9 | 24.8° | 9° | 15% | 52.9° (2002) | -18.2° (1994) |
| 10 | 24.8° | 9.3° | 33% | 51.1° (2012) | -30.3° (1982) |
| 11 | 27.7° | 11.3° | 22% | 48.2° (1992) | -25.2° (1979) |
| 12 | 26.6° | 12.2° | 27% | 49.1° (2013) | -22° (1974) |
| 13 | 25.5° | 10.8° | 18% | 51.4° (1987) | -13.5° (1963) |
| 14 | 24.8° | 10° | 22% | 43.3° (1990) | -20° (1972) |
| 15 | 24.1° | 9° | 22% | 50.4° (1990) | -32.3° (1972) |
| 16 | 26.2° | 9.7° | 23% | 53.6° (1990) | -33.7° (2009) |
| 17 | 25.9° | 10.8° | 30% | 53.8° (1990) | -26.1° (1982) |
| 18 | 25.9° | 9.1° | 18% | 52.7° (1996) | -33.9° (1967) |
| 19 | 24.8° | 8.1° | 18% | 49.3° (2013) | -31.4° (1994) |
| 20 | 22.8° | 7.2° | 15% | 46.6° (2018) | -26.7° (1985) |
| 21 | 26.1° | 10.9° | 17% | 48.9° (1964) | -27.6° (1963) |
| 22 | 28.8° | 14° | 33% | 56.5° (1964) | -17° (1970) |
| 23 | 27.9° | 12.6° | 32% | 46.2° (1989) | -24.2° (1963) |
| 24 | 27.3° | 11.3° | 25% | 53.8° (1967) | -17.5° (2008) |
| 25 | 25.7° | 11.3° | 25% | 54.3° (1981) | -18° (2019) |
| 26 | 25.3° | 9.5° | 25% | 55.2° (2002) | -21.8° (2022) |
| 27 | 26.6° | 10.9° | 23% | 55.6° (2002) | -15.5° (1971) |
| 28 | 25.5° | 11.3° | 22% | 47.3° (2025) | -19.7° (2014) |
| 29 | 26.6° | 10.4° | 28% | 54.1° (2013) | -27.2° (1966) |
| 30 | 25.5° | 9.7° | 13% | 54.7° (1988) | -29.2° (2019) |
| 31 | 27.5° | 10.6° | 17% | 60.6° (1989) | -34.2° (2019) |