January weather in Castle Hills, TX
The average temperature in Castle Hills in January is 52.2°F (41.0°F–63.3°F). Average precipitation: 1.96 inches.
January is a winter month in Castle Hills, and is cooler than the annual average of 69.6°F. Daily temperatures swing about 22.3°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 10h 18m. For travel, January is a comfortable month to visit.
Avg High
63.3°F
Avg Low
41.0°F
Precipitation
1.96 in
Daylight
10h 18m
January records in Castle Hills
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 82.9°F (2006) | 21.9°F (1979) | 0.50 in (1983) |
| January 2 | 89.1°F (2026) | 15.1°F (1979) | 0.82 in (2016) |
| January 3 | 86.0°F (1971) | 18.0°F (1979) | 1.07 in (2007) |
| January 4 | 84.9°F (1997) | 19.0°F (1947) | 0.81 in (1958) |
| January 5 | 79.0°F (1989) | 17.1°F (1972) | 1.22 in (1958) |
| January 6 | 84.0°F (1989) | 19.9°F (1972) | 0.96 in (1998) |
| January 7 | 81.0°F (2026) | 15.1°F (1970) | 1.21 in (2000) |
| January 8 | 81.0°F (1965) | 17.1°F (1976) | 1.09 in (1984) |
| January 9 | 81.0°F (1949) | 16.0°F (2010) | 1.69 in (2013) |
| January 10 | 86.0°F (1963) | 17.1°F (1962) | 2.15 in (1979) |
| January 11 | 84.0°F (1971) | 12.9°F (1982) | 0.61 in (1992) |
| January 12 | 81.0°F (2017) | 10.0°F (1962) | 1.17 in (1958) |
| January 13 | 79.0°F (1976) | 15.1°F (1975) | 0.41 in (2007) |
| January 14 | 79.0°F (1980) | 15.1°F (1964) | 1.49 in (2010) |
| January 15 | 78.1°F (1996) | 20.1°F (2024) | 1.81 in (2010) |
| January 16 | 80.1°F (1980) | 19.2°F (2024) | 0.92 in (2004) |
| January 17 | 82.0°F (1999) | 17.1°F (1982) | 0.86 in (1955) |
| January 18 | 81.0°F (1951) | 19.0°F (1948) | 2.72 in (1968) |
| January 19 | 84.9°F (2000) | 18.0°F (1984) | 1.78 in (1968) |
| January 20 | 82.9°F (1972) | 19.9°F (1985) | 2.36 in (1968) |
| January 21 | 82.9°F (2017) | 16.0°F (1985) | 1.64 in (1965) |
| January 22 | 84.0°F (1972) | 21.0°F (1959) | 2.41 in (2024) |
| January 23 | 88.0°F (1972) | 17.1°F (1966) | 1.15 in (1958) |
| January 24 | 84.9°F (1971) | 15.1°F (1963) | 1.60 in (2024) |
| January 25 | 87.1°F (1971) | 21.9°F (2026) | 2.94 in (2012) |
| January 26 | 87.1°F (1975) | 19.9°F (2026) | 2.50 in (1992) |
| January 27 | 84.0°F (1972) | 21.0°F (1966) | 1.57 in (2005) |
| January 28 | 80.1°F (1975) | 19.9°F (1948) | 0.35 in (2020) |
| January 29 | 86.0°F (2013) | 18.0°F (1951) | 1.01 in (1989) |
| January 30 | 89.1°F (1971) | 5.0°F (1949) | 2.54 in (1964) |
| January 31 | 82.9°F (2016) | 0.0°F (1949) | 2.05 in (1998) |