January weather in Bay St. Louis, MS
The average temperature in Bay St. Louis in January is 50.5°F (41.6°F–59.4°F). Average precipitation: 5.83 inches.
January is a winter month in Bay St. Louis, and is cooler than the annual average of 67°F. Daily temperatures swing about 17.8°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 10h 15m. For travel, January is a wet month.
Avg High
59.4°F
Avg Low
41.6°F
Precipitation
5.83 in
Daylight
10h 15m
January records in Bay St. Louis
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 78.1°F (2016) | 18.0°F (1984) | 4.50 in (2017) |
| January 2 | 78.1°F (2022) | 21.0°F (1984) | 0.86 in (2002) |
| January 3 | 78.1°F (2006) | 21.9°F (2001) | 1.88 in (2017) |
| January 4 | 78.1°F (1989) | 21.0°F (2001) | 1.72 in (1987) |
| January 5 | 75.9°F (1997) | 19.9°F (2001) | 1.82 in (2007) |
| January 6 | 73.9°F (1997) | 21.9°F (1999) | 2.80 in (1990) |
| January 7 | 80.1°F (2017) | 24.1°F (2017) | 9.35 in (1991) |
| January 8 | 75.0°F (2009) | 18.0°F (2015) | 2.12 in (2018) |
| January 9 | 78.1°F (2016) | 17.1°F (1996) | 2.10 in (2024) |
| January 10 | 79.0°F (2022) | 19.0°F (2010) | 2.27 in (1984) |
| January 11 | 72.0°F (1985) | 19.0°F (2010) | 4.60 in (1993) |
| January 12 | 73.0°F (2000) | 19.9°F (2010) | 1.82 in (2025) |
| January 13 | 77.0°F (1993) | 23.0°F (2011) | 4.69 in (1998) |
| January 14 | 79.0°F (2000) | 23.0°F (2011) | 0.96 in (1995) |
| January 15 | 75.0°F (2020) | 25.0°F (1985) | 1.65 in (1987) |
| January 16 | 75.0°F (2007) | 25.0°F (1985) | 1.35 in (2001) |
| January 17 | 73.9°F (2020) | 23.0°F (1997) | 1.45 in (1985) |
| January 18 | 73.9°F (2020) | 21.9°F (1997) | 1.87 in (2004) |
| January 19 | 75.0°F (1999) | 21.9°F (1996) | 1.87 in (1992) |
| January 20 | 75.0°F (2000) | 21.9°F (1994) | 1.78 in (1983) |
| January 21 | 77.0°F (1999) | 6.1°F (1985) | 3.50 in (1990) |
| January 22 | 77.0°F (2010) | 6.1°F (1985) | 1.68 in (1987) |
| January 23 | 73.9°F (1986) | 15.1°F (1985) | 2.53 in (2015) |
| January 24 | 73.9°F (2006) | 19.9°F (2003) | 2.06 in (2019) |
| January 25 | 75.0°F (2002) | 19.9°F (2003) | 1.98 in (1997) |
| January 26 | 73.9°F (2013) | 26.1°F (1988) | 1.17 in (1986) |
| January 27 | 75.0°F (2013) | 24.1°F (1988) | 2.08 in (2016) |
| January 28 | 73.9°F (1999) | 19.9°F (1986) | 2.61 in (1995) |
| January 29 | 75.0°F (1995) | 19.9°F (1986) | 0.89 in (2001) |
| January 30 | 73.9°F (2013) | 28.0°F (2022) | 3.15 in (1991) |
| January 31 | 73.9°F (1989) | 28.0°F (1984) | 2.83 in (1991) |