Stevenndori289 / CC BY-SA 4.0
Boston, MA Weather on April 9
Boston hits 85°F on April 9, 1991 in dramatic spring surge
April 9 in Boston typically hovers near the low 50s with an average high of 53°F, but the city has experienced wild temperature swings on this date across its 55-year climate record. The most dramatic departure came in 1991 when temperatures soared to an exceptional 85°F, while a frigid 26°F in 1977 shows how unpredictable spring weather can be in New England. This 59-degree range between record extremes underscores Boston's volatile transitional season.
What to Expect on April 9
Planning for April 9th in Boston, MA? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.
Frequently Asked Questions
What was the warmest April 9 ever in Boston?
The warmest April 9 in Boston, MA reached 85°F in 1991. That is 32°F above the long-term average high of 53°F.
What was the coldest April 9 ever in Boston?
The coldest April 9 in Boston, MA dropped to 26°F in 1977. That is 11°F below the long-term average low of 37°F.
What is the average temperature on April 9 in Boston?
On April 9, Boston averages a high of 53°F and a low of 37°F based on 55 years of NOAA weather observations from BOSTON.
How many years of weather data are available for April 9 in Boston?
We have 55 years of weather records for April 9 in Boston, MA, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.
April 9 Weather History in Boston
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 47°F | 28°F | 0" | -- |
| 2024 | 60°F | 42°F | 0" | -- |
| 2023 | 49°F | 35°F | 0" | -- |
| 2022 | 60°F | 43°F | 0.28" | -- |
| 2021 | 59°F | 44°F | 0" | -- |
| 2020 | 48°F | 41°F | 1.63" | -- |
| 2019 | 41°F | 36°F | 0.15" | -- |
| 2018 | 46°F | 30°F | 0" | -- |
| 2017 | 66°F | 40°F | 0" | -- |
| 2016 | 46°F | 32°F | 0" | -- |
| 2015 | 37°F | 33°F | 0.23" | -- |
| 2014 | 59°F | 41°F | 0" | -- |
| 2013 | 73°F | 45°F | 0.15" | -- |
| 2012 | 58°F | 43°F | 0" | -- |
| 2011 | 61°F | 35°F | 0" | -- |
| 2010 | 58°F | 43°F | 2.24" | -- |
| 2009 | 61°F | 37°F | 0" | -- |
| 2008 | 53°F | 33°F | 0" | -- |
| 2007 | 50°F | 34°F | 0" | -- |
| 2006 | 44°F | 35°F | 0" | -- |
| 2005 | 50°F | 42°F | 0" | -- |
| 2004 | 59°F | 43°F | 0" | -- |
| 2003 | 37°F | 34°F | 0.23" | -- |
| 2002 | 72°F | 48°F | 0" | -- |
| 2001 | 65°F | 40°F | 0.13" | -- |
| 2000 | 61°F | 34°F | 1.3" | -- |
| 1999 | 55°F | 41°F | 0.13" | -- |
| 1998 | 51°F | 42°F | 0.38" | -- |
| 1997 | 34°F | 27°F | 0" | -- |
| 1996 | 41°F | 33°F | 0.48" | 1" |
| 1995 | 61°F | 38°F | 0.23" | -- |
| 1994 | 56°F | 37°F | 0" | -- |
| 1993 | 49°F | 42°F | 0" | -- |
| 1992 | 60°F | 37°F | 0" | -- |
| 1991 | 85°F | 44°F | 0" | -- |
| 1990 | 60°F | 36°F | 0" | -- |
| 1989 | 48°F | 34°F | 0.05" | -- |
| 1988 | 57°F | 41°F | 0" | -- |
| 1987 | 48°F | 41°F | 0" | -- |
| 1986 | 52°F | 40°F | 0.1" | -- |
| 1985 | 47°F | 30°F | 0" | -- |
| 1984 | 38°F | 29°F | 0" | -- |
| 1983 | 52°F | 43°F | 0" | -- |
| 1982 | 44°F | 29°F | 0" | -- |
| 1981 | 72°F | 49°F | 0.13" | -- |
| 1980 | 52°F | 40°F | 0.28" | -- |
| 1979 | 43°F | 34°F | 1.85" | 0.3" |
| 1978 | 53°F | 34°F | 0" | -- |
| 1977 | 42°F | 26°F | 0" | -- |
| 1976 | 45°F | 37°F | 0" | -- |
| 1975 | 46°F | 33°F | 0" | -- |
| 1974 | 39°F | 29°F | 2.57" | -- |
| 1973 | 53°F | 35°F | 0" | -- |
| 1972 | 50°F | 32°F | 0" | -- |
| 1971 | 59°F | 32°F | 0" | -- |
Based on 55 years of data from NOAA station: BOSTON
How Has April 9 Changed?
Temperatures on this date have remained relatively stable over the past several decades.
Monthly Climate Averages
Historical temperature and precipitation averages for Boston, MA, based on 55+ years of weather data.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.