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Boston, MA Weather on May 27

Boston reaches 89°F on May 27, 1981

Boston's May 27 climate history shows significant temperature swings over 55 years of records. The city recorded an unusually warm high of 89°F back in 1981, nearly 18 degrees above the typical average high of 71°F for this date. Meanwhile, the coldest May 27 on record dipped to 43°F in 1973, illustrating the unpredictable spring weather that characterizes Boston's transitional season.

By Weather On This Day|
Avg High
71°F
Avg Low
54°F
Record High
89°F
1981
Record Low
43°F
1973
Boston, MA on May 27 — Temperature History40°F60°F80°F100°F19801990200020102020HighLow

What to Expect on May 27

Planning for May 27th in Boston, MA? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.

Frequently Asked Questions

What was the warmest May 27 ever in Boston?

The warmest May 27 in Boston, MA reached 89°F in 1981. That is 18°F above the long-term average high of 71°F.

What was the coldest May 27 ever in Boston?

The coldest May 27 in Boston, MA dropped to 43°F in 1973. That is 11°F below the long-term average low of 54°F.

What is the average temperature on May 27 in Boston?

On May 27, Boston averages a high of 71°F and a low of 54°F based on 55 years of NOAA weather observations from BOSTON.

How many years of weather data are available for May 27 in Boston?

We have 55 years of weather records for May 27 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.

May 27 Weather History in Boston

YearHighLowPrecipSnow
202574°F51°F0"--
202474°F59°F0.66"--
202375°F51°F0"--
202282°F60°F0"--
202183°F62°F0.03"--
202083°F60°F0"--
201976°F57°F0"--
201861°F50°F0.05"--
201761°F53°F0"--
201673°F58°F0"--
201585°F65°F0"--
201474°F50°F1.22"--
201373°F47°F0"--
201272°F64°F0"--
201187°F65°F0"--
201070°F56°F0.13"--
200952°F46°F0.41"--
200883°F57°F2.51"--
200771°F57°F0"--
200674°F60°F0"--
200561°F51°F0"--
200464°F50°F1.04"--
200357°F48°F0"--
200270°F58°F0"--
200160°F54°F0.51"--
200074°F55°F0"--
199971°F54°F0"--
199872°F58°F0"--
199759°F46°F0"--
199665°F56°F0"--
199562°F50°F0"--
199464°F48°F0"--
199369°F55°F0.05"--
199253°F46°F0"--
199181°F56°F0.28"--
199065°F49°F0"--
198980°F57°F0.79"--
198882°F51°F0"--
198766°F51°F0"--
198680°F47°F0"--
198587°F53°F0.56"--
198477°F58°F0"--
198353°F47°F0.79"--
198278°F54°F0"--
198189°F66°F0"--
198074°F53°F0"--
197972°F53°F0"--
197859°F55°F0.03"--
197781°F62°F0"--
197676°F52°F0.1"--
197571°F53°F0.23"--
197450°F44°F0.03"--
197359°F43°F0"--
197277°F47°F0"--
197169°F53°F0.08"--

Based on 55 years of data from NOAA station: BOSTON

How Has May 27 Changed?

The last decade has been 5.7°F warmer on this date compared to 20-30 years ago.

Monthly Climate Averages

Historical temperature and precipitation averages for Boston, MA, based on 55+ years of weather data.

Warmest MonthJulyAvg High: 84°F / Low: 64°F
Coldest MonthJanuaryAvg High: 36°F / Low: 20°F
Jan
36°/ 20°
💧 8.7"
❄️ 2.2"
Feb
39°/ 22°
💧 9.2"
❄️ 2.4"
Mar
47°/ 30°
💧 9.7"
❄️ 2.2"
Apr
57°/ 39°
💧 8.5"
❄️ 1.9"
May
68°/ 49°
💧 7.6"
❄️ 1.5"
Jun
78°/ 58°
💧 8.8"
Jul
84°/ 64°
💧 9.5"
Aug
82°/ 63°
💧 10.0"
Sep
74°/ 56°
💧 10.0"
Oct
63°/ 45°
💧 10.4"
❄️ 1.6"
Nov
52°/ 36°
💧 9.7"
❄️ 1.4"
Dec
42°/ 26°
💧 9.6"
❄️ 2.0"

Temperatures in Fahrenheit. Precipitation and snowfall in inches.

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