Boulder, Saturday, 8 August, 16:32
Overcast. Feels like 89°. High 96°, low 66°.
In January, Boulder, CO averages a high of 38.4° and a low of 15°. About 1.0 inches of precipitation fall over the month (6 wet days). The record high is 62.8° (2005) and the record low -41.6° (1963). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 34.3° | 11.3° | 23% | 60.1° (1997) | -11.4° (2016) |
| 2 | 36° | 10.8° | 20% | 62.4° (1997) | -9.8° (1979) |
| 3 | 35.2° | 12.6° | 15% | 54.5° (2003) | -19.5° (1974) |
| 4 | 35.8° | 12.7° | 15% | 55.9° (2001) | -24.7° (1972) |
| 5 | 34.9° | 13.3° | 18% | 57° (2001) | -17.5° (1971) |
| 6 | 35.1° | 13.5° | 22% | 58.3° (2006) | -20.9° (1971) |
| 7 | 36.1° | 12.9° | 18% | 61.2° (2006) | -15.5° (1971) |
| 8 | 38.5° | 13.8° | 17% | 60.8° (2003) | -17.5° (2010) |
| 9 | 36.7° | 15.6° | 17% | 54.9° (2017) | -12.8° (1962) |
| 10 | 39° | 14.5° | 17% | 57.6° (1990) | -34.2° (1962) |
| 11 | 39.2° | 15.6° | 22% | 57.4° (2000) | -16.4° (1963) |
| 12 | 38.3° | 14.9° | 25% | 57.7° (1996) | -41.6° (1963) |
| 13 | 38.8° | 14° | 7% | 56.7° (1996) | -26.3° (1963) |
| 14 | 39.7° | 15.6° | 13% | 58.6° (2006) | -23.6° (2024) |
| 15 | 40.1° | 15.6° | 15% | 56.8° (2000) | -20.9° (2024) |
| 16 | 38.1° | 16.5° | 28% | 54.9° (2010) | -22.4° (2024) |
| 17 | 39.4° | 15.8° | 13% | 58.1° (2000) | -8.7° (2008) |
| 18 | 40.3° | 16° | 20% | 56.8° (2018) | -11.9° (1984) |
| 19 | 39.9° | 17.2° | 27% | 60.3° (2018) | -21.1° (1963) |
| 20 | 39° | 16.3° | 18% | 62.8° (2005) | -15.3° (1984) |
| 21 | 39.7° | 15.3° | 18% | 62.4° (2009) | -12.1° (2025) |
| 22 | 38.8° | 15.4° | 17% | 60.4° (2009) | -6.3° (1962) |
| 23 | 39.9° | 14.9° | 12% | 59.7° (1981) | -13.7° (1963) |
| 24 | 39.9° | 16.2° | 13% | 58.3° (2005) | -8° (1969) |
| 25 | 39.7° | 18° | 27% | 55° (2005) | 3° (1969) |
| 26 | 39.6° | 16.3° | 22% | 58.6° (1975) | -4.9° (1976) |
| 27 | 39.6° | 16.9° | 25% | 61° (2003) | -17.5° (1963) |
| 28 | 40.5° | 15.6° | 23% | 59.5° (2011) | -9.2° (1979) |
| 29 | 38.7° | 16° | 27% | 57° (1976) | -10.5° (2023) |
| 30 | 40.8° | 15.4° | 15% | 59.9° (1986) | -14.6° (2023) |
| 31 | 40.1° | 16.3° | 20% | 60.8° (1992) | -17.5° (1985) |