Weather on April 21
Lowell, MA
55 Years of Data
Avg High
62°F
Avg Low
37°F
Warmest
1976
68°F avg
Coldest
1981
36°F avg
About This Date
April 21st in Lowell, MA typically brings mild spring weather, with average highs around 62°F and lows near 37°F — a 25°F daily swing. Over 55 years of records, the warmest April 21st was in 1976 (68°F average), while the coldest was 1981 (36°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 35% of April 21st dates historically, with the wettest April 21st recording 3.4" of rain. The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.7°F cooler on this date compared to 20-30 years ago.
Planning for April 21st in Lowell, MA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
0.4°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 64° | 35° | 50° | — | — |
| 2024 | 64° | 35° | 50° | 0.79" | — |
| 2023 | 66° | 40° | 53° | — | — |
| 2022 | 58° | 31° | 44° | — | — |
| 2021 | 75° | 39° | 57° | — | — |
| 2020 | 54° | 31° | 42° | — | — |
| 2019 | 66° | 58° | 62° | 1.27" | — |
| 2018 | 54° | 32° | 43° | — | — |
| 2017 | 64° | — | — | 0.43" | — |
| 2016 | 60° | 32° | 46° | — | — |
| 2015 | 50° | 41° | 46° | 2.84" | — |
| 2014 | 58° | 30° | 44° | — | — |
| 2013 | 57° | 32° | 45° | 0.25" | — |
| 2012 | 80° | 45° | 62° | — | — |
| 2011 | 44° | 38° | 41° | — | — |
| 2010 | 68° | 38° | 53° | — | — |
| 2009 | 55° | 29° | 42° | 3.4" | — |
| 2008 | 68° | 39° | 54° | — | — |
| 2007 | 71° | 30° | 51° | — | — |
| 2006 | 76° | 40° | 58° | — | — |
| 2005 | 87° | 41° | 64° | 0.64" | — |
| 2004 | 63° | 36° | 49° | — | — |
| 2003 | 66° | 32° | 49° | — | — |
| 2002 | 63° | 37° | 50° | 0.1" | — |
| 2001 | 69° | 28° | 49° | — | — |
| 2000 | 63° | 42° | 52° | 0.15" | — |
| 1999 | 60° | 35° | 48° | 0.28" | — |
| 1998 | 54° | 34° | 44° | 0.08" | — |
| 1997 | 64° | 35° | 50° | — | — |
| 1996 | 75° | 42° | 59° | — | — |
| 1995 | 67° | 38° | 52° | — | — |
| 1994 | 58° | 31° | 44° | — | — |
| 1993 | 75° | 47° | 61° | — | — |
| 1992 | 67° | 43° | 55° | — | — |
| 1991 | 59° | 37° | 48° | 0.84" | — |
| 1990 | 64° | 40° | 52° | 0.43" | — |
| 1989 | 59° | 30° | 45° | — | — |
| 1988 | 50° | 27° | 38° | — | — |
| 1987 | 57° | 50° | 54° | 0.08" | — |
| 1986 | 62° | 46° | 54° | 0.2" | — |
| 1985 | 67° | 45° | 56° | — | — |
| 1984 | 52° | 32° | 42° | — | — |
| 1983 | 47° | 35° | 41° | 0.03" | — |
| 1982 | 61° | 35° | 48° | 0.18" | — |
| 1981coldest | 45° | 27° | 36° | — | — |
| 1980 | 70° | 41° | 55° | — | — |
| 1979 | 63° | 26° | 44° | — | — |
| 1978 | 55° | 40° | 47° | 1.02" | — |
| 1977 | 69° | 38° | 53° | — | — |
| 1976warmest | 84° | 51° | 68° | — | — |
| 1975 | 55° | 31° | 43° | — | — |
| 1974 | 58° | 31° | 44° | — | — |
| 1973 | 59° | 36° | 47° | — | — |
| 1972 | 40° | 39° | 39° | 1.47" | — |
| 1971 | 64° | 40° | 52° | — | — |
55 years of data from LOWELL