January weather in Southlake, TX
The average temperature in Southlake in January is 44.9°F (34.1°F–55.7°F). Average precipitation: 2.62 inches.
January is a winter month in Southlake, and is cooler than the annual average of 65.4°F. Daily temperatures swing about 21.6°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 10h 3m. For travel, January is cool.
Avg High
55.7°F
Avg Low
34.1°F
Precipitation
2.62 in
Daylight
10h 3m
January records in Southlake
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 81.0°F (2006) | 10.0°F (1991) | 1.60 in (2021) |
| January 2 | 75.0°F (1910) | 9.0°F (1979) | 0.80 in (1903) |
| January 3 | 82.9°F (2006) | 5.0°F (1911) | 2.00 in (2005) |
| January 4 | 84.9°F (2006) | 6.1°F (1959) | 0.93 in (2007) |
| January 5 | 79.0°F (1916) | 8.1°F (1959) | 1.83 in (1998) |
| January 6 | 80.1°F (1956) | 10.9°F (2014) | 3.87 in (1998) |
| January 7 | 79.0°F (2008) | 6.1°F (1912) | 1.46 in (1961) |
| January 8 | 84.0°F (2006) | 9.0°F (1913) | 1.32 in (1961) |
| January 9 | 88.0°F (1969) | 10.0°F (1976) | 3.63 in (2013) |
| January 10 | 81.0°F (1957) | 7.0°F (1962) | 1.70 in (2025) |
| January 11 | 82.9°F (2023) | 3.0°F (1918) | 1.60 in (1905) |
| January 12 | 84.0°F (2023) | -0.9°F (1918) | 1.05 in (1916) |
| January 13 | 82.0°F (2000) | 6.1°F (1912) | 2.98 in (1950) |
| January 14 | 79.0°F (1996) | 7.0°F (1912) | 0.78 in (1951) |
| January 15 | 80.1°F (1901) | 10.0°F (1905) | 0.58 in (1954) |
| January 16 | 80.1°F (2020) | 12.9°F (1972) | 2.20 in (2017) |
| January 17 | 80.1°F (1914) | 8.1°F (2018) | 2.40 in (2004) |
| January 18 | 81.0°F (1914) | 12.0°F (2018) | 0.64 in (1992) |
| January 19 | 78.1°F (1914) | 10.0°F (1984) | 2.48 in (1990) |
| January 20 | 78.1°F (1999) | 9.0°F (1985) | 1.50 in (1979) |
| January 21 | 82.9°F (1986) | 8.1°F (1985) | 1.46 in (1916) |
| January 22 | 82.9°F (1909) | 12.9°F (1978) | 2.13 in (1965) |
| January 23 | 82.0°F (1909) | 10.0°F (1966) | 0.39 in (1984) |
| January 24 | 80.1°F (1909) | 6.1°F (1963) | 0.66 in (2026) |
| January 25 | 80.1°F (1967) | 8.1°F (1963) | 3.50 in (2012) |
| January 26 | 81.0°F (2005) | 14.0°F (1897) | 2.30 in (1916) |
| January 27 | 81.0°F (1911) | 9.0°F (1897) | 1.29 in (1992) |
| January 28 | 82.0°F (1903) | 12.0°F (1963) | 1.33 in (2006) |
| January 29 | 82.9°F (1970) | 10.0°F (1966) | 2.02 in (2010) |
| January 30 | 84.9°F (1917) | 7.0°F (1966) | 2.31 in (2025) |
| January 31 | 95.0°F (1911) | 10.9°F (1966) | 3.93 in (2002) |