January weather in Mercedes, TX
The average temperature in Mercedes in January is 60.7°F (50.0°F–71.3°F). Average precipitation: 1.02 inches.
January is a winter month in Mercedes, and is cooler than the annual average of 75°F. Daily temperatures swing about 21.3°F between overnight low and afternoon high. Daylight averages about 10h 32m. For travel, January is one of the best months of the year to visit.
Avg High
71.3°F
Avg Low
50.0°F
Precipitation
1.02 in
Daylight
10h 32m
January records in Mercedes
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 87.1°F (1922) | 27.0°F (1928) | 0.81 in (1958) |
| January 2 | 91.9°F (2025) | 28.0°F (1979) | 1.35 in (1988) |
| January 3 | 93.0°F (2025) | 26.1°F (1979) | 0.45 in (1915) |
| January 4 | 89.1°F (2026) | 25.0°F (1919) | 2.10 in (1915) |
| January 5 | 88.0°F (1955) | 28.0°F (1919) | 2.61 in (1958) |
| January 6 | 91.0°F (1997) | 28.9°F (1919) | 0.74 in (1959) |
| January 7 | 89.1°F (1946) | 25.0°F (2025) | 0.75 in (2000) |
| January 8 | 91.0°F (1989) | 25.0°F (2025) | 1.25 in (1915) |
| January 9 | 89.1°F (1929) | 28.0°F (1944) | 0.93 in (1973) |
| January 10 | 89.1°F (1918) | 24.1°F (1962) | 1.03 in (1992) |
| January 11 | 89.1°F (1963) | 23.0°F (1918) | 0.54 in (1973) |
| January 12 | 87.1°F (1940) | 16.0°F (1962) | 0.61 in (1958) |
| January 13 | 88.0°F (1950) | 25.0°F (1975) | 2.31 in (1946) |
| January 14 | 88.0°F (1960) | 27.0°F (1975) | 0.97 in (1987) |
| January 15 | 86.0°F (1922) | 26.1°F (1944) | 0.49 in (1919) |
| January 16 | 86.0°F (1941) | 26.1°F (1944) | 1.56 in (1988) |
| January 17 | 89.1°F (1943) | 26.1°F (2024) | 2.04 in (1934) |
| January 18 | 89.1°F (1936) | 23.0°F (1930) | 2.15 in (1978) |
| January 19 | 86.0°F (2023) | 24.1°F (1943) | 1.57 in (2017) |
| January 20 | 88.0°F (1954) | 26.1°F (1943) | 0.55 in (1931) |
| January 21 | 87.1°F (1969) | 25.0°F (1985) | 1.40 in (1966) |
| January 22 | 91.0°F (1957) | 26.1°F (2025) | 0.95 in (1975) |
| January 23 | 90.0°F (1972) | 21.9°F (1930) | 0.39 in (1993) |
| January 24 | 91.0°F (1996) | 23.0°F (1963) | 0.81 in (1919) |
| January 25 | 90.0°F (2002) | 30.9°F (1926) | 1.50 in (1984) |
| January 26 | 90.0°F (1918) | 27.0°F (2026) | 0.72 in (1992) |
| January 27 | 87.1°F (1918) | 27.0°F (2026) | 2.05 in (1934) |
| January 28 | 93.0°F (1929) | 27.0°F (1925) | 6.34 in (1941) |
| January 29 | 97.0°F (1929) | 28.0°F (1948) | 0.73 in (1937) |
| January 30 | 91.9°F (1971) | 26.1°F (1949) | 1.88 in (1924) |
| January 31 | 93.0°F (1971) | 19.9°F (1949) | 0.58 in (1934) |