Weather on December 20
Lowell, MA
55 Years of Data
Avg High
36°F
Avg Low
17°F
Warmest
2025
45°F avg
Coldest
1980
6°F avg
About This Date
December 20th in Lowell, MA typically brings cold winter weather, with average highs around 36°F and lows near 17°F. Over 55 years of records, the warmest December 20th was in 2025 (45°F average), while the coldest was 1980 (6°F) — a 39°F range across recorded history. Precipitation has occurred on 27% of recorded December 20th dates, with snow falling 16% of the time (heaviest snowfall: 8.6"). The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.8°F cooler on this date compared to 20-30 years ago.
Planning for December 20th in Lowell, MA? Bundle up with warm layers and protect extremities from the cold.
Warming Trend
2.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025warmest | 59° | 30° | 45° | — | — |
| 2024 | 43° | 29° | 36° | — | — |
| 2023 | 47° | 30° | 38° | — | — |
| 2022 | 40° | 25° | 32° | — | — |
| 2021 | 35° | 16° | 25° | — | — |
| 2020 | 31° | 7° | 19° | — | — |
| 2019 | 21° | 9° | 15° | — | — |
| 2018 | 39° | 22° | 30° | — | — |
| 2017 | 47° | 27° | 37° | — | — |
| 2016 | 21° | 8° | 15° | — | — |
| 2015 | 38° | — | — | — | — |
| 2014 | — | 21° | — | — | — |
| 2013 | 40° | 25° | 32° | — | — |
| 2012 | 45° | 27° | 36° | — | — |
| 2011 | 42° | 12° | 27° | — | — |
| 2010 | 34° | 17° | 25° | — | — |
| 2009 | 26° | 12° | 19° | 0.25" | 1" |
| 2008 | 37° | 11° | 24° | 1.42" | 8.6" |
| 2007 | 49° | 12° | 30° | 1.3" | 3.7" |
| 2006 | 42° | 19° | 31° | — | — |
| 2005 | 32° | 20° | 26° | — | — |
| 2004 | 40° | 19° | 29° | 0.48" | 0.7" |
| 2003 | 37° | 22° | 29° | — | — |
| 2002 | 46° | 13° | 29° | — | — |
| 2001 | 45° | 25° | 35° | — | — |
| 2000 | 37° | 23° | 30° | 1.24" | 0.8" |
| 1999 | 35° | 16° | 25° | — | — |
| 1998 | 45° | 27° | 36° | 0.1" | — |
| 1997 | 47° | 28° | 37° | — | — |
| 1996 | 42° | 27° | 34° | 1.45" | — |
| 1995 | 23° | 13° | 18° | 0.71" | 4.7" |
| 1994 | 38° | 20° | 29° | — | — |
| 1993 | 34° | 26° | 30° | 0.43" | — |
| 1992 | 40° | 18° | 29° | 0.13" | — |
| 1991 | 23° | 7° | 15° | — | — |
| 1990 | 49° | 25° | 37° | — | — |
| 1989 | 26° | 2° | 14° | — | — |
| 1988 | 55° | 19° | 37° | — | — |
| 1987 | 37° | 20° | 28° | — | — |
| 1986 | 42° | 32° | 37° | 1.52" | — |
| 1985 | 30° | 6° | 18° | — | — |
| 1984 | 46° | 28° | 37° | — | — |
| 1983 | 18° | 4° | 11° | — | — |
| 1982 | 31° | 24° | 27° | 0.25" | 1.5" |
| 1981 | 23° | 7° | 15° | — | — |
| 1980coldest | 19° | -7° | 6° | — | — |
| 1979 | 25° | 7° | 16° | 0.13" | 0.5" |
| 1978 | 32° | 18° | 25° | 0.2" | — |
| 1977 | 30° | 26° | 28° | — | — |
| 1976 | 36° | 12° | 24° | — | — |
| 1975 | 21° | 0° | 11° | — | — |
| 1974 | 36° | 27° | 31° | — | — |
| 1973 | 23° | 4° | 13° | — | — |
| 1972 | 37° | 25° | 31° | — | — |
| 1971 | 23° | 0° | 12° | 0.28" | 1" |
55 years of data from LOWELL