January weather in Dover, NH
The average temperature in Dover in January is 23.6°F (14.8°F–32.4°F). Average precipitation: 3.38 inches.
January is a winter month in Dover, and is cooler than the annual average of 47.1°F. Daily temperatures swing about 17.6°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 9h 9m. For travel, January is cold.
Avg High
32.4°F
Avg Low
14.8°F
Precipitation
3.38 in
Daylight
9h 9m
January records in Dover
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 57.7°F (2011) | -6.7°F (2018) | 0.69 in (2007) |
| January 2 | 47.1°F (2023) | -6.9°F (2018) | 0.49 in (2021) |
| January 3 | 50.5°F (2007) | -7.6°F (2008) | 0.61 in (2017) |
| January 4 | 48.6°F (2007) | -13.0°F (2014) | 0.90 in (2018) |
| January 5 | 59.7°F (2007) | -1.5°F (2018) | 0.28 in (2006) |
| January 6 | 68.2°F (2007) | -4.2°F (2018) | 0.68 in (2014) |
| January 7 | 50.0°F (2007) | -7.8°F (2018) | 0.89 in (2009) |
| January 8 | 59.2°F (2008) | -8.5°F (2015) | 1.11 in (2007) |
| January 9 | 57.7°F (2008) | -5.8°F (2004) | 0.65 in (2024) |
| January 10 | 52.2°F (2016) | -8.5°F (2004) | 1.94 in (2024) |
| January 11 | 64.0°F (2020) | -8.0°F (2004) | 1.04 in (2008) |
| January 12 | 62.4°F (2020) | -2.2°F (2022) | 1.08 in (2023) |
| January 13 | 59.9°F (2018) | -1.1°F (2004) | 1.47 in (2024) |
| January 14 | 58.8°F (2005) | -11.6°F (2004) | 0.78 in (2005) |
| January 15 | 46.4°F (2026) | -9.2°F (2004) | 0.42 in (2006) |
| January 16 | 48.0°F (2021) | -16.8°F (2009) | 1.23 in (2021) |
| January 17 | 47.3°F (2022) | -6.9°F (2009) | 1.34 in (2022) |
| January 18 | 55.8°F (2006) | -13.4°F (2003) | 0.72 in (2009) |
| January 19 | 44.6°F (2015) | -12.5°F (2003) | 0.40 in (2010) |
| January 20 | 55.8°F (2006) | -0.4°F (2025) | 0.74 in (2019) |
| January 21 | 57.9°F (2006) | -5.6°F (2005) | 0.50 in (2011) |
| January 22 | 41.9°F (2026) | -14.6°F (2005) | 0.25 in (2023) |
| January 23 | 51.3°F (2002) | -5.6°F (2014) | 1.09 in (2023) |
| January 24 | 56.5°F (2019) | -8.9°F (2011) | 1.41 in (2019) |
| January 25 | 50.7°F (2010) | -8.9°F (2009) | 1.28 in (2020) |
| January 26 | 50.7°F (2002) | -6.3°F (2009) | 1.25 in (2023) |
| January 27 | 49.6°F (2018) | -3.5°F (2022) | 1.98 in (2015) |
| January 28 | 52.5°F (2006) | -8.9°F (2003) | 1.18 in (2009) |
| January 29 | 49.1°F (2002) | -8.3°F (2005) | 1.13 in (2022) |
| January 30 | 57.0°F (2013) | -0.4°F (2003) | 0.41 in (2019) |
| January 31 | 59.0°F (2013) | -10.1°F (2026) | 0.37 in (2025) |