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Brussels vs Boston
Comparing Brussels change · Boston change
Brussels and Boston have nearly identical year-round temperatures; Boston is the wetter, with 302 mm more rain a year, and Boston the sunnier.
How the seasons compare
The differences between Brussels and Boston, in everyday terms.
Summers
Boston has much hotter summers
Brussels: Mild
Boston: Warm
Winters
Brussels has much milder winters
Brussels: Chilly
Boston: Cold
Rain & snow
Boston is wetter
Brussels: Moderate rainfall
Boston: Wet
Sky
Boston is sunnier
Brussels: Often cloudy
Boston: Partly cloudy
Month-by-month charts
Temperature
Brussels and Boston run remarkably close all year.
Precipitation
Boston is the wetter — about 302 mm more across the year.
Clear skies
Boston has the clearer skies — the higher line.
Exact monthly numbers
Tap a metric to open its full table. Desktop shows all twelve months; on a phone each metric splits into Jan–Jun and Jul–Dec.
Avg high (°C) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Brussels | 6 | 7 | 11 | 15 | 19 | 21 | 23 | 23 | 20 | 15 | 10 | 6 |
| Boston | 3 | 4 | 8 | 14 | 19 | 25 | 28 | 27 | 23 | 17 | 11 | 6 |
| Difference | -3 | -3 | -4 | -1 | +1 | +3 | +4 | +4 | +3 | +2 | +1 | -1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Brussels | 6 | 7 | 11 | 15 | 19 | 21 |
| Boston | 3 | 4 | 8 | 14 | 19 | 25 |
| Difference | -3 | -3 | -4 | -1 | +1 | +3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Brussels | 23 | 23 | 20 | 15 | 10 | 6 |
| Boston | 28 | 27 | 23 | 17 | 11 | 6 |
| Difference | +4 | +4 | +3 | +2 | +1 | -1 |
Avg low (°C) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Brussels | 1 | 1 | 3 | 6 | 9 | 12 | 14 | 14 | 11 | 8 | 4 | 2 |
| Boston | -5 | -4 | -0 | 5 | 10 | 15 | 19 | 18 | 15 | 9 | 3 | -2 |
| Difference | -6 | -6 | -4 | -1 | +1 | +3 | +5 | +4 | +3 | — | -1 | -3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Brussels | 1 | 1 | 3 | 6 | 9 | 12 |
| Boston | -5 | -4 | -0 | 5 | 10 | 15 |
| Difference | -6 | -6 | -4 | -1 | +1 | +3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Brussels | 14 | 14 | 11 | 8 | 4 | 2 |
| Boston | 19 | 18 | 15 | 9 | 3 | -2 |
| Difference | +5 | +4 | +3 | — | -1 | -3 |
Precipitation (mm) Boston runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Brussels | 70 | 56 | 56 | 44 | 61 | 79 | 72 | 82 | 62 | 67 | 66 | 89 |
| Boston | 86 | 82 | 106 | 92 | 83 | 99 | 83 | 82 | 90 | 102 | 93 | 109 |
| Difference | +16 | +25 | +50 | +49 | +22 | +20 | +11 | — | +28 | +35 | +27 | +20 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Brussels | 70 | 56 | 56 | 44 | 61 | 79 |
| Boston | 86 | 82 | 106 | 92 | 83 | 99 |
| Difference | +16 | +25 | +50 | +49 | +22 | +20 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Brussels | 72 | 82 | 62 | 67 | 66 | 89 |
| Boston | 83 | 82 | 90 | 102 | 93 | 109 |
| Difference | +11 | — | +28 | +35 | +27 | +20 |
Snowfall (cm)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Brussels | — | — | — | — | — | — | — | — | — | — | — | — |
| Boston | 36 | 37 | 23 | 4 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 23 |
| Difference | — | — | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Brussels | — | — | — | — | — | — |
| Boston | 36 | 37 | 23 | 4 | 0 | 0 |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Brussels | — | — | — | — | — | — |
| Boston | 0 | 0 | 0 | 1 | 2 | 23 |
| Difference | — | — | — | — | — | — |
Cloud cover (%) Brussels runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Brussels | 73 | 72 | 71 | 68 | 70 | 71 | 68 | 67 | 66 | 71 | 75 | 74 |
| Boston | 63 | 62 | 62 | 64 | 65 | 63 | 57 | 56 | 55 | 60 | 62 | 63 |
| Difference | -10 | -10 | -8 | -4 | -5 | -7 | -10 | -11 | -11 | -11 | -13 | -12 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Brussels | 73 | 72 | 71 | 68 | 70 | 71 |
| Boston | 63 | 62 | 62 | 64 | 65 | 63 |
| Difference | -10 | -10 | -8 | -4 | -5 | -7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Brussels | 68 | 67 | 66 | 71 | 75 | 74 |
| Boston | 57 | 56 | 55 | 60 | 62 | 63 |
| Difference | -10 | -11 | -11 | -11 | -13 | -12 |
Relative humidity (%) Brussels runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Brussels | 92 | 89 | 84 | 79 | 77 | 76 | 75 | 76 | 80 | 85 | 91 | 93 |
| Boston | 88 | 87 | 83 | 80 | 79 | 79 | 74 | 73 | 74 | 78 | 82 | 86 |
| Difference | -4 | -3 | -1 | — | +2 | +2 | -1 | -3 | -5 | -7 | -10 | -8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Brussels | 92 | 89 | 84 | 79 | 77 | 76 |
| Boston | 88 | 87 | 83 | 80 | 79 | 79 |
| Difference | -4 | -3 | -1 | — | +2 | +2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Brussels | 75 | 76 | 80 | 85 | 91 | 93 |
| Boston | 74 | 73 | 74 | 78 | 82 | 86 |
| Difference | -1 | -3 | -5 | -7 | -10 | -8 |
How both climates are changing
Both cities are warming. Each city has its own warming trend; see its trends page for the year-by-year detail. Brussels trends → · Boston trends →
Both cities' Köppen climate types are projected to hold steady through 2099 (SSP2-4.5).
Methodology & sources
Brussels
Temperature & precipitation — 1991–2020 normals computed from 28 years of daily observations at Uccle, a weather station, about 6 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.
Boston
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Boston (NOAA GHCN station USW00014739), about 4 km from the city centre.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.
← change Brussels · change Boston → · Brussels page · Boston page