Hot-summer humid continental climate
Climate Boston - Massachusetts
Annual high59ºF
Annual low44ºF
Precipitation43.77 inch
| Month | HighºF | LowºF | Precipinch | Wet days | Sunshineh | Snowinch |
|---|---|---|---|---|---|---|
| Jan | 36 | 22 | 3.36 | 13 | 148 | 13 |
| Feb | 39 | 25 | 3.25 | 11 | 168 | 11 |
| Mar | 45 | 31 | 4.32 | 13 | 212 | 8 |
| Apr | 56 | 41 | 3.74 | 12 | 222 | 2 |
| May | 66 | 50 | 3.49 | 13 | 263 | 0 |
| Jun | 76 | 60 | 3.68 | 12 | 283 | 0 |
| Jul | 81 | 65 | 3.43 | 11 | 300 | 0 |
| Aug | 80 | 65 | 3.35 | 10 | 280 | 0 |
| Sep | 72 | 57 | 3.44 | 10 | 232 | 0 |
| Oct | 61 | 47 | 3.94 | 10 | 207 | 0 |
| Nov | 51 | 38 | 3.99 | 11 | 152 | 1 |
| Dec | 41 | 28 | 3.78 | 11 | 148 | 9 |
- JanHigh 36ºFLow 22ºFPrecip 3.36 inch
- FebHigh 39ºFLow 25ºFPrecip 3.25 inch
- MarHigh 45ºFLow 31ºFPrecip 4.32 inch
- AprHigh 56ºFLow 41ºFPrecip 3.74 inch
- MayHigh 66ºFLow 50ºFPrecip 3.49 inch
- JunHigh 76ºFLow 60ºFPrecip 3.68 inch
- JulHigh 81ºFLow 65ºFPrecip 3.43 inch
- AugHigh 80ºFLow 65ºFPrecip 3.35 inch
- SepHigh 72ºFLow 57ºFPrecip 3.44 inch
- OctHigh 61ºFLow 47ºFPrecip 3.94 inch
- NovHigh 51ºFLow 38ºFPrecip 3.99 inch
- DecHigh 41ºFLow 28ºFPrecip 3.78 inch
Climate summary
What is the average weather in Boston, Massachusetts?
Boston experiences a humid continental climate, marked by strong seasonal contrasts. Summers are warm, while winters are cold and bring significant snowfall. Precipitation is fairly wet and spread relatively evenly throughout the year, with winter moisture often arriving as snow. The city receives over 2,600 hours of sunshine annually.
Boston weather averages
Annual high59ºF
Annual low44ºF
Precipitation43.77 inch
Sunshine2615 hours
Daily normals Boston - Massachusetts - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 38.3 | 25.2 | 0.11 | 0.11 | 0.40 | 0.40 |
| Jan 2 | 38.2 | 25.0 | 0.23 | 0.23 | 0.80 | 0.80 |
| Jan 3 | 38.0 | 24.8 | 0.35 | 0.35 | 1.20 | 1.20 |
| Jan 4 | 37.8 | 24.5 | 0.47 | 0.47 | 1.60 | 1.60 |
| Jan 5 | 37.6 | 24.3 | 0.59 | 0.59 | 2.00 | 2.00 |
| Jan 6 | 37.5 | 24.2 | 0.71 | 0.71 | 2.40 | 2.40 |
| Jan 7 | 37.3 | 24.0 | 0.82 | 0.82 | 2.90 | 2.90 |
| Jan 8 | 37.2 | 23.8 | 0.93 | 0.93 | 3.30 | 3.30 |
| Jan 9 | 37.0 | 23.6 | 1.05 | 1.05 | 3.80 | 3.80 |
| Jan 10 | 36.9 | 23.5 | 1.16 | 1.16 | 4.20 | 4.20 |
| Jan 11 | 36.8 | 23.3 | 1.28 | 1.28 | 4.70 | 4.70 |
| Jan 12 | 36.7 | 23.2 | 1.39 | 1.39 | 5.10 | 5.10 |
| Jan 13 | 36.6 | 23.0 | 1.51 | 1.51 | 5.60 | 5.60 |
| Jan 14 | 36.5 | 22.9 | 1.62 | 1.62 | 6.10 | 6.10 |
| Jan 15 | 36.4 | 22.8 | 1.73 | 1.73 | 6.60 | 6.60 |
| Jan 16 | 36.4 | 22.7 | 1.84 | 1.84 | 7.10 | 7.10 |
| Jan 17 | 36.3 | 22.6 | 1.95 | 1.95 | 7.60 | 7.60 |
| Jan 18 | 36.3 | 22.5 | 2.05 | 2.05 | 8.00 | 8.00 |
| Jan 19 | 36.3 | 22.4 | 2.16 | 2.16 | 8.50 | 8.50 |
| Jan 20 | 36.2 | 22.4 | 2.26 | 2.26 | 8.90 | 8.90 |
| Jan 21 | 36.2 | 22.3 | 2.36 | 2.36 | 9.40 | 9.40 |
| Jan 22 | 36.2 | 22.3 | 2.47 | 2.47 | 9.90 | 9.90 |
| Jan 23 | 36.2 | 22.3 | 2.57 | 2.57 | 10.30 | 10.30 |
| Jan 24 | 36.3 | 22.3 | 2.67 | 2.67 | 10.80 | 10.80 |
| Jan 25 | 36.3 | 22.3 | 2.78 | 2.78 | 11.20 | 11.20 |
| Jan 26 | 36.3 | 22.3 | 2.88 | 2.88 | 11.80 | 11.80 |
| Jan 27 | 36.4 | 22.3 | 2.98 | 2.98 | 12.30 | 12.30 |
| Jan 28 | 36.5 | 22.3 | 3.08 | 3.08 | 12.80 | 12.80 |
| Jan 29 | 36.5 | 22.4 | 3.18 | 3.18 | 13.30 | 13.30 |
| Jan 30 | 36.6 | 22.4 | 3.29 | 3.29 | 13.80 | 13.80 |
| Jan 31 | 36.7 | 22.5 | 3.39 | 3.39 | 14.30 | 14.30 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Boston - October 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Oct 1 | 79.0 | 59.0 | T |
| Oct 2 | 87.1 | 66.0 | T |
| Oct 3 | 66.9 | 54.0 | 0.00 |
| Oct 4 | – | – | – |
| Oct 5 | – | – | – |
| Oct 6 | – | – | – |
| Oct 7 | 66.0 | 43.0 | 0.00 |
| Oct 8 | 73.0 | 55.9 | 0.00 |
| Oct 9 | 69.1 | 55.0 | 0.00 |
| Oct 10 | 63.0 | 48.9 | 0.00 |
| Oct 11 | 60.1 | 48.0 | 1.44 |
| Oct 12 | 71.1 | 50.0 | 0.10 |
| Oct 13 | 62.1 | 53.1 | 0.08 |
| Oct 14 | 77.0 | 59.0 | 0.02 |
| Oct 15 | 62.1 | 51.1 | 0.00 |
| Oct 16 | 69.1 | 51.1 | 0.44 |
| Oct 17 | – | – | – |
| Oct 18 | 53.1 | 37.0 | 0.00 |
| Oct 19 | – | – | – |
| Oct 20 | – | – | – |
| Oct 21 | 55.9 | 46.0 | 0.00 |
| Oct 22 | 64.9 | 46.9 | 0.00 |
| Oct 23 | 53.1 | 43.0 | 0.00 |
| Oct 24 | 55.9 | 37.9 | 0.00 |
| Oct 25 | 62.1 | 39.9 | 0.00 |
| Oct 26 | 73.0 | 44.1 | 0.00 |
| Oct 27 | 57.0 | 43.0 | 0.00 |
| Oct 28 | 52.0 | 37.9 | 0.00 |
| Oct 29 | – | – | – |
| Oct 30 | – | – | – |
| Oct 31 | – | – | – |
The data for October 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature87.1ºF · Oct 2
- Lowest max temperature52.0ºF · Oct 28
- Highest min temperature66.0ºF · Oct 2
- Lowest min temperature37.0ºF · Oct 18
Geo Boston - Massachusetts
Location
- Country
- United States
- State
- Massachusetts
- County
- Suffolk
- City
- Boston
- Zip Code
- 2108
- Elevation
- 49 ft
- Longitude
- -71.06
- Latitude
- 42.36
- ICAO
- –
- IATA
- –