Hillsboro, Sunday, 9 August, 14:28
Overcast. Feels like 83°. High 84°, low 56°.
In January, Hillsboro, OR averages a high of 45.6° and a low of 34.7°. About 7.0 inches of precipitation fall over the month (17 wet days). The record high is 64.2° (2024) and the record low 5.7° (1962). Normals are computed over the last 60 years.
| Day | High | Low | Chance of precip. | Record high | Record low |
|---|---|---|---|---|---|
| 1 | 43.3° | 33.3° | 43% | 56.7° (1981) | 12.9° (1979) |
| 2 | 43.3° | 32.7° | 55% | 56.3° (1996) | 20.1° (1979) |
| 3 | 43.5° | 33.6° | 63% | 54.3° (1994) | 22.6° (1979) |
| 4 | 43.7° | 34.5° | 63% | 55.8° (1984) | 23.7° (1974) |
| 5 | 43.7° | 33.8° | 62% | 54.9° (1984) | 17.2° (2004) |
| 6 | 43.7° | 33.1° | 50% | 54° (1984) | 13.1° (1982) |
| 7 | 44.2° | 34.3° | 57% | 55° (2002) | 17.2° (1974) |
| 8 | 44.6° | 34.9° | 65% | 54.3° (1996) | 20.1° (1974) |
| 9 | 45.1° | 34.5° | 60% | 53.4° (1990) | 16.7° (1993) |
| 10 | 44.4° | 34.5° | 68% | 54.5° (2019) | 15.3° (1993) |
| 11 | 44.8° | 35.2° | 55% | 55° (1996) | 14.7° (1963) |
| 12 | 45.3° | 35.2° | 65% | 55.4° (2021) | 11.3° (2017) |
| 13 | 45.7° | 35.6° | 53% | 58.3° (2018) | 5.9° (2024) |
| 14 | 45.7° | 36.1° | 57% | 54.7° (1994) | 7.9° (2024) |
| 15 | 45.3° | 34.9° | 53% | 54.5° (1965) | 10.6° (2024) |
| 16 | 45.7° | 35.2° | 62% | 55.4° (1976) | 11.1° (2024) |
| 17 | 46.9° | 34.3° | 52% | 57.2° (2018) | 18.5° (2017) |
| 18 | 47.5° | 36.3° | 55% | 58.6° (2005) | 23° (1969) |
| 19 | 47.3° | 36° | 55% | 60.8° (2005) | 11.8° (1962) |
| 20 | 46.9° | 35.4° | 47% | 58.1° (2005) | 8.6° (1962) |
| 21 | 46.4° | 34.9° | 57% | 59° (1968) | 5.7° (1962) |
| 22 | 46.6° | 34.7° | 57% | 57° (1970) | 12.7° (1962) |
| 23 | 46.9° | 35.2° | 53% | 59.7° (1968) | 12.6° (1969) |
| 24 | 46.6° | 35.2° | 52% | 60.1° (2015) | 11.5° (1969) |
| 25 | 46.8° | 34.9° | 50% | 64° (2015) | 11.8° (1969) |
| 26 | 46.2° | 34.2° | 52% | 58.8° (2015) | 19.4° (1969) |
| 27 | 45.9° | 34.3° | 50% | 58.8° (2024) | 17.6° (1980) |
| 28 | 47.1° | 34.7° | 52% | 64.2° (2024) | 13.8° (1980) |
| 29 | 46.9° | 35.4° | 47% | 60.1° (1992) | 12.4° (1980) |
| 30 | 46.8° | 34.3° | 50% | 58.1° (1971) | 14.5° (1996) |
| 31 | 46.8° | 35.2° | 57% | 58.6° (2020) | 13.6° (1996) |