December weather in Lynn, MA
The average temperature in Lynn in December is 33.0°F (24.3°F–41.6°F). Average precipitation: 4.70 inches. Average snowfall is 7.4 inches.
December is a winter month in Lynn, and is cooler than the annual average of 48.7°F. Daily temperatures swing about 17.3°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 8h 54m. For travel, December is cold.
Avg High
41.6°F
Avg Low
24.3°F
Precipitation
4.70 in
Snow
7.4 in
December records in Lynn
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| December 1 | 71.1°F (2001) | 12.0°F (1989) | 1.79 in (2016) |
| December 2 | 68.0°F (2001) | 7.0°F (1989) | 1.12 in (2019) |
| December 3 | 64.9°F (2009) | 14.0°F (2002) | 1.86 in (1986) |
| December 4 | 69.1°F (1998) | 10.0°F (1989) | 1.18 in (1990) |
| December 5 | 64.9°F (2001) | 8.1°F (2025) | 2.31 in (1993) |
| December 6 | 73.0°F (2001) | 10.9°F (2025) | 1.82 in (2020) |
| December 7 | 77.0°F (1998) | 16.0°F (1989) | 0.99 in (2003) |
| December 8 | 66.9°F (1998) | 10.9°F (1989) | 2.02 in (2011) |
| December 9 | 60.1°F (1991) | 9.0°F (2002) | 0.95 in (2001) |
| December 10 | 59.0°F (2008) | 9.0°F (2002) | 2.36 in (2014) |
| December 11 | 61.0°F (2019) | 3.9°F (1988) | 3.00 in (2023) |
| December 12 | 61.0°F (2021) | 0.0°F (1988) | 3.20 in (1992) |
| December 13 | 62.1°F (1984) | 8.1°F (1988) | 0.81 in (2010) |
| December 14 | 55.0°F (1991) | 7.0°F (1989) | 1.01 in (2000) |
| December 15 | 60.1°F (2015) | 6.1°F (1989) | 2.00 in (2002) |
| December 16 | 62.1°F (2008) | 5.0°F (2016) | 0.86 in (2007) |
| December 17 | 61.0°F (1984) | 5.0°F (2016) | 1.75 in (2022) |
| December 18 | 60.1°F (2000) | 3.0°F (2007) | 2.36 in (2000) |
| December 19 | 57.0°F (2023) | 5.0°F (1985) | 2.13 in (1986) |
| December 20 | 55.0°F (2025) | 10.9°F (2008) | 0.90 in (1995) |
| December 21 | 57.9°F (1994) | 3.0°F (2004) | 1.59 in (1993) |
| December 22 | 62.1°F (1990) | 1.0°F (1989) | 1.20 in (1984) |
| December 23 | 64.9°F (1990) | -59.1°F (2022) | 1.28 in (1997) |
| December 24 | 57.0°F (1990) | -99.0°F (2022) | 2.42 in (1994) |
| December 25 | 66.9°F (2015) | 7.0°F (1989) | 1.08 in (2008) |
| December 26 | 64.0°F (2015) | 7.0°F (2000) | 1.35 in (2002) |
| December 27 | 55.9°F (2016) | 3.9°F (1989) | 1.35 in (2012) |
| December 28 | 59.0°F (2016) | -0.9°F (2017) | 0.43 in (2012) |
| December 29 | 71.1°F (1984) | -8.0°F (2017) | 0.79 in (1991) |
| December 30 | 62.1°F (1984) | 0.0°F (1987) | 1.52 in (2016) |
| December 31 | 57.0°F (1990) | 3.0°F (2017) | 1.24 in (2019) |