January weather in Slidell, LA
The average temperature in Slidell in January is 51.1°F (41.6°F–60.6°F). Average precipitation: 5.92 inches.
January is a winter month in Slidell, and is cooler than the annual average of 67.6°F. Daily temperatures swing about 19°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 10h 15m. For travel, January is a wet month.
Avg High
60.6°F
Avg Low
41.6°F
Precipitation
5.92 in
Daylight
10h 15m
January records in Slidell
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 78.1°F (1966) | 18.0°F (1964) | 5.38 in (2017) |
| January 2 | 79.0°F (1966) | 21.0°F (2018) | 1.54 in (1979) |
| January 3 | 79.0°F (1989) | 17.1°F (1979) | 1.61 in (1966) |
| January 4 | 77.0°F (1982) | 19.0°F (1979) | 2.06 in (1972) |
| January 5 | 79.0°F (1997) | 19.9°F (1969) | 2.56 in (1966) |
| January 6 | 78.1°F (1989) | 24.1°F (2010) | 4.67 in (1991) |
| January 7 | 79.0°F (1989) | 19.0°F (2014) | 4.89 in (1998) |
| January 8 | 80.1°F (1982) | 19.9°F (1970) | 2.15 in (1961) |
| January 9 | 77.0°F (1969) | 19.0°F (1979) | 2.07 in (2024) |
| January 10 | 81.0°F (1972) | 15.1°F (1962) | 3.23 in (1991) |
| January 11 | 79.0°F (2009) | 9.0°F (1962) | 4.06 in (1993) |
| January 12 | 80.1°F (1989) | 12.0°F (1962) | 3.06 in (1992) |
| January 13 | 80.1°F (1960) | 17.1°F (1962) | 3.67 in (1998) |
| January 14 | 78.1°F (1971) | 19.9°F (1964) | 2.20 in (1977) |
| January 15 | 78.1°F (2020) | 21.9°F (1978) | 3.34 in (1960) |
| January 16 | 78.1°F (2020) | 19.9°F (1972) | 1.24 in (1987) |
| January 17 | 75.9°F (1974) | 17.1°F (2018) | 1.36 in (1988) |
| January 18 | 78.1°F (2017) | 18.0°F (2018) | 2.07 in (1992) |
| January 19 | 77.0°F (2023) | 14.0°F (1977) | 2.96 in (1963) |
| January 20 | 77.0°F (2002) | 10.0°F (1985) | 4.13 in (1993) |
| January 21 | 79.0°F (1982) | 8.1°F (1985) | 2.58 in (2006) |
| January 22 | 80.1°F (1982) | 10.9°F (2025) | 1.82 in (1992) |
| January 23 | 79.0°F (1971) | 16.0°F (2025) | 3.44 in (2015) |
| January 24 | 79.0°F (1972) | 10.9°F (1963) | 1.70 in (1991) |
| January 25 | 80.1°F (2002) | 18.0°F (1963) | 5.57 in (1978) |
| January 26 | 78.1°F (1962) | 21.0°F (2026) | 1.70 in (2012) |
| January 27 | 80.1°F (1957) | 21.9°F (2026) | 2.21 in (1994) |
| January 28 | 79.0°F (1957) | 21.9°F (2026) | 2.18 in (2018) |
| January 29 | 80.1°F (1957) | 21.9°F (2026) | 2.09 in (1991) |
| January 30 | 77.0°F (1971) | 15.1°F (1966) | 2.47 in (1991) |
| January 31 | 78.1°F (2023) | 21.9°F (1966) | 1.03 in (1977) |