Boston weather in April: Boston, Massachusetts: normal highs, lows, rain and records for April
Boston in April has a normal high of 56°F and a normal low of 41°F, a daily mean of 49°F, rising from 51°F on the 1st to 62°F by the 30th. Measurable precipitation falls on 12 days in a normal April, 3.63 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 14°C and low of 5°C, 92 mm of precipitation and 4 cm of snow in April.
- NOAA stationBoston Logan International Airport
- Station IDUSW00014739
- Location42.36°N 71.01°W
- Elevation12 ft (4 m)
- From the center2 miles
- Population673,458
- Jan 37° 23°
- Feb 39° 25°
- Mar 46° 31°
- Apr 56° 41°
- May 67° 50°
- Jun 76° 60°
- Jul 82° 66°
- Aug 80° 65°
- Sep 73° 58°
- Oct 62° 48°
- Nov 52° 38°
- Dec 42° 29°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Boston in April?
The normal high is 56°F and the normal low 41°F, for a daily mean of 48.6°F. April is 10.3°F warmer than March and 9.8°F cooler than May. April is the 7th warmest month of the year in Boston and the 6th wettest. Across the month the normal high rises 11°F, from 51°F on April 1 to 62°F on April 30. From one year to the next April's mean temperature typically moves about 2.3°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 46°F and 51°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 39%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| April 1 | 51°F | 36°F | 39% | 23% |
| April 8 | 53°F | 38°F | 39% | 23% |
| April 15 | 56°F | 41°F | 39% | 22% |
| April 22 | 59°F | 43°F | 39% | 22% |
| April 30 | 62°F | 46°F | 39% | 22% |
Every day of April: normal high, low and chance of precipitation (warmest afternoon April 30, coldest night April 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| April 1 | 51°F | 36°F | 39% | 23% | 12 h 40 min |
| April 2 | 51°F | 36°F | 39% | 23% | 12 h 40 min |
| April 3 | 51°F | 36°F | 39% | 23% | 12 h 50 min |
| April 4 | 52°F | 37°F | 39% | 23% | 12 h 50 min |
| April 5 | 52°F | 37°F | 39% | 23% | 12 h 50 min |
| April 6 | 53°F | 37°F | 39% | 23% | 12 h 50 min |
| April 7 | 53°F | 38°F | 39% | 23% | 13 h |
| April 8 | 53°F | 38°F | 39% | 23% | 13 h |
| April 9 | 54°F | 39°F | 39% | 23% | 13 h |
| April 10 | 54°F | 39°F | 39% | 22% | 13 h 10 min |
| April 11 | 55°F | 39°F | 39% | 22% | 13 h 10 min |
| April 12 | 55°F | 40°F | 39% | 22% | 13 h 10 min |
| April 13 | 56°F | 40°F | 39% | 22% | 13 h 10 min |
| April 14 | 56°F | 40°F | 39% | 22% | 13 h 20 min |
| April 15 | 56°F | 41°F | 39% | 22% | 13 h 20 min |
| April 16 | 57°F | 41°F | 39% | 22% | 13 h 20 min |
| April 17 | 57°F | 41°F | 39% | 22% | 13 h 20 min |
| April 18 | 58°F | 42°F | 39% | 22% | 13 h 30 min |
| April 19 | 58°F | 42°F | 39% | 22% | 13 h 30 min |
| April 20 | 58°F | 43°F | 39% | 22% | 13 h 30 min |
| April 21 | 59°F | 43°F | 39% | 22% | 13 h 40 min |
| April 22 | 59°F | 43°F | 39% | 22% | 13 h 40 min |
| April 23 | 60°F | 44°F | 39% | 22% | 13 h 40 min |
| April 24 | 60°F | 44°F | 39% | 22% | 13 h 40 min |
| April 25 | 60°F | 44°F | 39% | 22% | 13 h 50 min |
| April 26 | 61°F | 45°F | 39% | 22% | 13 h 50 min |
| April 27 | 61°F | 45°F | 39% | 22% | 13 h 50 min |
| April 28 | 61°F | 45°F | 39% | 22% | 13 h 50 min |
| April 29 | 62°F | 46°F | 39% | 22% | 14 h |
| April 30 | 62°F | 46°F | 39% | 22% | 14 h |
- Normal high
- 56°FApril average
- Normal low
- 41°FApril average
- Precipitation
- 3.63 inmonth total
- Days with precipitation
- 120.01 inch or more
- Snowfall
- 1.6 inmonth total
- Nights at 32°F or colder
- 2
- Daylight
- 12 h 40 min to 14 hApril 1 to April 30
- Days at 70°F or more
- 4
- Days at 80°F or more
- 1
- Sunshine
- 69%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014739; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Boston in April?
On a given April day the chance of 0.01 inch or more is 39% on average, highest around April 12 (39%). In all, 3.63 in falls on 12 days of a normal April, 1 of them with an inch or more.
In a normal April in Boston, 2 nights fall to freezing and snowfall averages 1.6 inches.
Snow falls on 1 day in a normal April.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014739.
How humid and windy is Boston in April?
At 3 p.m. the normal temperature is 58°F with 51% relative humidity and a dew point of 40°F; at 6 a.m. it is 49°F with 70% humidity. The wind averages 11.4 mph, most often from the east-southeast in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 49°F | 40°F | 70% | 9.8 mph | 37% |
| 9 a.m. | 54°F | 40°F | 58% | 11.3 mph | – |
| noon | 57°F | 40°F | 53% | 13.5 mph | 26% |
| 3 p.m. | 58°F | 40°F | 51% | 14.3 mph | – |
| 6 p.m. | 55°F | 40°F | 55% | 12.8 mph | – |
| 9 p.m. | 52°F | 39°F | 62% | 10.6 mph | 34% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014739. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for April in Boston?
The warmest April temperature on Boston's official record (since 1872) is 94°F, on April 18, 1976; the coldest is 11°F, on April 5, 1874. The wettest April brought 9.57 in (2004); the snowiest, 22.4 inches (1997).
The April mean against the 1991-2020 normal of 48.6°F: 2021 50.8°F (+2.2), 2022 50.1°F (+1.5), 2023 50.8°F (+2.2), 2024 48.8°F (+0.2), 2025 50.8°F (+2.2), 2026 48.5°F (−0.1). 5 of 6 ran warmer than normal.
| April | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 50.8°F | +2.2°F | 4.44 in |
| 2022 | 50.1°F | +1.5°F | 2.32 in |
| 2023 | 50.8°F | +2.2°F | 3.10 in |
| 2024 | 48.8°F | +0.2°F | 2.96 in |
| 2025 | 50.8°F | +2.2°F | 3.13 in |
| 2026 | 48.5°F | −0.1°F | 1.47 in |
Source: records: ACIS, NWS threaded record BOSthr; recent months: ACIS, station USW00014739. Records and recent months use complete months only.
How does April in Boston compare across Massachusetts?
Across the 35 places PlainClimate covers in Massachusetts, April normal highs run from 52°F in Nantucket to 62°F in Maynard; Boston's is 56°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.