January weather in South Bethany, DE
The average temperature in South Bethany in January is 36.4°F (27.9°F–44.9°F). Average precipitation: 3.39 inches.
January is a winter month in South Bethany, and is cooler than the annual average of 56°F. Daily temperatures swing about 17°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 9h 36m. For travel, January is cold.
Avg High
44.9°F
Avg Low
27.9°F
Precipitation
3.39 in
Daylight
9h 36m
January records in South Bethany
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 69.1°F (2005) | 10.2°F (2018) | 0.81 in (2003) |
| January 2 | 66.9°F (2022) | 9.1°F (2018) | 0.99 in (2017) |
| January 3 | 66.9°F (2004) | 7.2°F (2018) | 1.26 in (2022) |
| January 4 | 72.0°F (2005) | 12.2°F (2014) | 0.86 in (2000) |
| January 5 | 63.0°F (2023) | 11.1°F (2018) | 1.00 in (2004) |
| January 6 | 72.0°F (2007) | 3.2°F (2018) | 1.00 in (2025) |
| January 7 | 64.0°F (2008) | 1.2°F (2018) | 0.49 in (2017) |
| January 8 | 62.1°F (2008) | 11.1°F (2014) | 0.61 in (2007) |
| January 9 | 71.1°F (2008) | 7.2°F (2017) | 1.30 in (2024) |
| January 10 | 63.0°F (2016) | 5.2°F (2017) | 0.47 in (2016) |
| January 11 | 63.0°F (2000) | 9.1°F (2015) | 0.50 in (2012) |
| January 12 | 71.1°F (2020) | 16.2°F (2022) | 1.02 in (2015) |
| January 13 | 66.0°F (2007) | 18.0°F (2003) | 0.65 in (2019) |
| January 14 | 68.0°F (2007) | 18.1°F (2016) | 1.51 in (2005) |
| January 15 | 68.0°F (2007) | 19.0°F (2000) | 0.69 in (2013) |
| January 16 | 66.0°F (2007) | 12.2°F (2025) | 1.10 in (2022) |
| January 17 | 60.1°F (2012) | 7.2°F (2009) | 0.76 in (2008) |
| January 18 | 61.0°F (2023) | 1.9°F (2003) | 1.20 in (2011) |
| January 19 | 54.0°F (2023) | 1.9°F (2003) | 0.70 in (2002) |
| January 20 | 59.0°F (2019) | 12.9°F (2026) | 0.60 in (2019) |
| January 21 | 63.0°F (2006) | 0.1°F (2025) | 0.55 in (2012) |
| January 22 | 57.9°F (2026) | -9.8°F (2025) | 1.15 in (2005) |
| January 23 | 57.9°F (2018) | -3.8°F (2014) | 2.27 in (2016) |
| January 24 | 64.0°F (2002) | -2.7°F (2025) | 1.97 in (2019) |
| January 25 | 62.1°F (2024) | 1.2°F (2025) | 1.74 in (2026) |
| January 26 | 77.0°F (2024) | 0.1°F (2025) | 1.08 in (2011) |
| January 27 | 64.0°F (2012) | 1.2°F (2025) | 0.45 in (2012) |
| January 28 | 61.0°F (2002) | 7.0°F (2003) | 0.88 in (2024) |
| January 29 | 63.0°F (2002) | -2.7°F (2014) | 0.51 in (2018) |
| January 30 | 78.1°F (2002) | -8.9°F (2014) | 1.20 in (2005) |
| January 31 | 64.0°F (2001) | 4.1°F (2010) | 1.04 in (2021) |