Weather on April 21
Cambridge, MA
55 Years of Data
About This Date
April 21st in Cambridge, MA typically brings mild spring weather, with average highs around 62°F and lows near 41°F. Over 56 years of records, the warmest April 21st was in 1986 (70°F average), while the coldest was 1981 (41°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 25% of April 21st dates historically, with the wettest April 21st recording 1.35" of rain. The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
Planning for April 21st in Cambridge, MA? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 52° | 32° | 42° | — | — |
| 2025 | 64° | 36° | 50° | — | — |
| 2024 | 59° | 37° | 48° | 0.25" | — |
| 2023 | 64° | 41° | 53° | — | — |
| 2022 | 57° | 38° | 47° | — | — |
| 2021 | 76° | 44° | 60° | — | — |
| 2020 | 51° | 30° | 41° | — | — |
| 2019 | 71° | 57° | 64° | 0.21" | — |
| 2018 | 54° | 37° | 45° | — | — |
| 2017 | 61° | 44° | 52° | 0.29" | — |
| 2016 | 58° | 38° | 48° | — | — |
| 2015 | 58° | 42° | 50° | 1.12" | — |
| 2014 | 53° | 32° | 43° | — | — |
| 2013 | 58° | 35° | 46° | 0.03" | — |
| 2012 | 77° | 52° | 64° | — | — |
| 2011 | 49° | 41° | 45° | — | — |
| 2010 | 68° | 40° | 54° | — | — |
| 2009 | 52° | 42° | 47° | 0.63" | — |
| 2008 | 65° | 41° | 53° | — | — |
| 2007 | 75° | 44° | 60° | — | — |
| 2006 | 49° | 43° | 46° | — | — |
| 2005 | 54° | 41° | 47° | 0.07" | — |
| 2004 | 61° | 43° | 52° | — | — |
| 2003 | 59° | 34° | 46° | — | — |
| 2002 | 69° | 42° | 56° | — | — |
| 2001 | 69° | 29° | 49° | — | — |
| 2000 | 62° | 42° | 52° | 0.02" | — |
| 1999 | 65° | 37° | 51° | — | — |
| 1998 | 54° | 44° | 49° | — | — |
| 1997 | 61° | 39° | 50° | — | — |
| 1996 | 73° | 50° | 62° | — | — |
| 1995 | 69° | 42° | 56° | — | — |
| 1994 | 60° | 36° | 48° | — | — |
| 1993 | 72° | 51° | 61° | — | — |
| 1992 | 65° | 42° | 53° | — | — |
| 1991 | 54° | 40° | 47° | 1.35" | — |
| 1990 | 64° | 40° | 52° | 0.32" | — |
| 1989 | 61° | 37° | 49° | — | — |
| 1988 | 51° | 30° | 41° | — | — |
| 1987 | 54° | 48° | 51° | — | — |
| 1986warmest | 75° | 64° | 70° | — | — |
| 1985 | 66° | 42° | 54° | — | — |
| 1984 | 59° | 41° | 50° | — | — |
| 1983 | 46° | 35° | 41° | 0.13" | — |
| 1982 | 71° | 49° | 60° | — | — |
| 1981coldest | 53° | 29° | 41° | 0.03" | — |
| 1980 | 74° | 49° | 61° | — | — |
| 1979 | 55° | 31° | 43° | — | — |
| 1978 | 63° | 44° | 53° | 0.08" | — |
| 1977 | 73° | 43° | 58° | — | — |
| 1976 | 86° | 52° | 69° | — | — |
| 1975 | 57° | 39° | 48° | — | — |
| 1974 | 55° | 37° | 46° | — | — |
| 1973 | 55° | 40° | 47° | — | — |
| 1972 | 64° | 34° | 49° | 0.77" | — |
| 1971 | 60° | 40° | 50° | — | — |
Cambridge, MA Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Cambridge, MA Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Cambridge, MA Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Cambridge, MA
Most pleasant months in Cambridge, MA: May, June, August, September.
What to expect on April 21st
This page shows what actually happened each year. For the odds — typical high and low, and how often it stays dry — see the climatological outlook for this date.
April 21st outlook →