Weather landscape

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Boston, MA Weather on April 12

Boston hit 85°F on April 12, 1977, shattering spring expectations

Boston experienced one of the most dramatic temperature swings on record for April 12 when it reached 85°F in 1977, a full 29 degrees above the day's average high of 56°F. Just one year later, the city plummeted to a record low of 24°F on the same date, illustrating the volatile nature of New England spring weather. Across 55 years of data, April 12 remains a study in contrasts between early summer warmth and lingering winter cold.

By Weather On This Day|
Avg High
56°F
Avg Low
39°F
Record High
85°F
1977
Record Low
24°F
1976
Boston, MA on April 12 — Temperature History20°F40°F60°F80°F100°F19801990200020102020HighLow

What to Expect on April 12

Planning for April 12th 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 12 ever in Boston?

The warmest April 12 in Boston, MA reached 85°F in 1977. That is 29°F above the long-term average high of 56°F.

What was the coldest April 12 ever in Boston?

The coldest April 12 in Boston, MA dropped to 24°F in 1976. That is 15°F below the long-term average low of 39°F.

What is the average temperature on April 12 in Boston?

On April 12, Boston averages a high of 56°F and a low of 39°F based on 55 years of NOAA weather observations from BOSTON.

How many years of weather data are available for April 12 in Boston?

We have 55 years of weather records for April 12 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 12 Weather History in Boston

YearHighLowPrecipSnow
202539°F35°F0.94"--
202462°F49°F1.88"--
202372°F52°F0"--
202270°F49°F0.08"--
202151°F43°F0"--
202060°F35°F0"--
201958°F41°F0.28"--
201855°F36°F0.15"--
201760°F48°F0.05"--
201660°F43°F0.56"--
201568°F39°F0"--
201469°F49°F0.1"--
201343°F38°F0.89"--
201256°F43°F0.81"--
201166°F47°F0.2"--
201061°F44°F0"--
200944°F34°F0"--
200861°F44°F1.14"--
200741°F35°F2.21"--
200669°F41°F0"--
200548°F33°F0.08"--
200449°F38°F0.1"--
200361°F40°F1.14"--
200265°F39°F0"--
200145°F43°F0.51"--
200049°F36°F0.03"--
199954°F40°F0"--
199851°F35°F0"--
199746°F40°F1.02"--
199660°F46°F0"--
199559°F37°F0.03"--
199458°F40°F0"--
199351°F42°F2.11"--
199259°F35°F0.58"--
199152°F36°F0"--
199048°F35°F0"--
198952°F32°F0"--
198843°F36°F0"--
198772°F41°F0"--
198652°F34°F0"--
198557°F34°F0"--
198447°F41°F0"--
198358°F42°F0"--
198255°F38°F0"--
198159°F42°F0"--
198065°F44°F0"--
197963°F42°F0"--
197861°F43°F0.33"--
197785°F42°F0"--
197643°F24°F0"--
197546°F34°F0"--
197452°F40°F0"--
197347°F32°F0"--
197249°F34°F0"--
197150°F31°F0"--

Based on 55 years of data from NOAA station: BOSTON

How Has April 12 Changed?

The last decade has been 4.9°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.