Home › Compare › Frankfurt am Main vs Boston
Frankfurt am Main vs Boston
Comparing Frankfurt am Main change · Boston change
Frankfurt am Main and Boston have nearly identical year-round temperatures; Boston is the wetter, with 509 mm more rain a year, and Boston the sunnier.
How the seasons compare
The differences between Frankfurt am Main and Boston, in everyday terms.
Summers
Boston has hotter summers
Frankfurt am Main: Warm
Boston: Warm
Winters
Frankfurt am Main has milder winters
Frankfurt am Main: Cold
Boston: Cold
Rain & snow
Boston is wetter
Frankfurt am Main: Moderate rainfall
Boston: Wet
Sky
Boston is sunnier
Frankfurt am Main: Often grey
Boston: Partly cloudy
Month-by-month charts
Temperature
Frankfurt am Main and Boston run remarkably close all year.
Precipitation
Boston is the wetter — about 509 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frankfurt am Main | 5 | 7 | 11 | 16 | 20 | 24 | 26 | 26 | 21 | 15 | 9 | 5 |
| Boston | 3 | 4 | 8 | 14 | 19 | 25 | 28 | 27 | 23 | 17 | 11 | 6 |
| Difference | -2 | -3 | -4 | -3 | -1 | +1 | +2 | +1 | +2 | +2 | +2 | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Frankfurt am Main | 5 | 7 | 11 | 16 | 20 | 24 |
| Boston | 3 | 4 | 8 | 14 | 19 | 25 |
| Difference | -2 | -3 | -4 | -3 | -1 | +1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Frankfurt am Main | 26 | 26 | 21 | 15 | 9 | 5 |
| Boston | 28 | 27 | 23 | 17 | 11 | 6 |
| Difference | +2 | +1 | +2 | +2 | +2 | — |
Avg low (°C) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frankfurt am Main | -1 | -0 | 2 | 5 | 9 | 13 | 15 | 14 | 11 | 7 | 3 | 0 |
| Boston | -5 | -4 | -0 | 5 | 10 | 15 | 19 | 18 | 15 | 9 | 3 | -2 |
| Difference | -4 | -4 | -3 | — | +1 | +3 | +4 | +4 | +4 | +2 | — | -2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Frankfurt am Main | -1 | -0 | 2 | 5 | 9 | 13 |
| Boston | -5 | -4 | -0 | 5 | 10 | 15 |
| Difference | -4 | -4 | -3 | — | +1 | +3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Frankfurt am Main | 15 | 14 | 11 | 7 | 3 | 0 |
| Boston | 19 | 18 | 15 | 9 | 3 | -2 |
| Difference | +4 | +4 | +4 | +2 | — | -2 |
Precipitation (mm) Boston runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frankfurt am Main | 44 | 39 | 39 | 37 | 60 | 55 | 63 | 61 | 48 | 50 | 47 | 54 |
| Boston | 86 | 82 | 106 | 92 | 83 | 99 | 83 | 82 | 90 | 102 | 93 | 109 |
| Difference | +42 | +43 | +67 | +56 | +22 | +43 | +20 | +21 | +43 | +52 | +46 | +55 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Frankfurt am Main | 44 | 39 | 39 | 37 | 60 | 55 |
| Boston | 86 | 82 | 106 | 92 | 83 | 99 |
| Difference | +42 | +43 | +67 | +56 | +22 | +43 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Frankfurt am Main | 63 | 61 | 48 | 50 | 47 | 54 |
| Boston | 83 | 82 | 90 | 102 | 93 | 109 |
| Difference | +20 | +21 | +43 | +52 | +46 | +55 |
Snowfall (cm)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frankfurt am Main | — | — | — | — | — | — | — | — | — | — | — | — |
| Boston | 36 | 37 | 23 | 4 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 23 |
| Difference | — | — | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Frankfurt am Main | — | — | — | — | — | — |
| Boston | 36 | 37 | 23 | 4 | 0 | 0 |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Frankfurt am Main | — | — | — | — | — | — |
| Boston | 0 | 0 | 0 | 1 | 2 | 23 |
| Difference | — | — | — | — | — | — |
Cloud cover (%) Frankfurt am Main runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frankfurt am Main | 75 | 75 | 73 | 69 | 72 | 72 | 70 | 68 | 68 | 73 | 79 | 78 |
| Boston | 63 | 62 | 62 | 64 | 65 | 63 | 57 | 56 | 55 | 60 | 62 | 63 |
| Difference | -12 | -13 | -11 | -5 | -6 | -9 | -12 | -12 | -13 | -13 | -17 | -15 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Frankfurt am Main | 75 | 75 | 73 | 69 | 72 | 72 |
| Boston | 63 | 62 | 62 | 64 | 65 | 63 |
| Difference | -12 | -13 | -11 | -5 | -6 | -9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Frankfurt am Main | 70 | 68 | 68 | 73 | 79 | 78 |
| Boston | 57 | 56 | 55 | 60 | 62 | 63 |
| Difference | -12 | -12 | -13 | -13 | -17 | -15 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frankfurt am Main | 93 | 89 | 83 | 76 | 73 | 67 | 62 | 62 | 70 | 82 | 91 | 93 |
| Boston | 88 | 87 | 83 | 80 | 79 | 79 | 74 | 73 | 74 | 78 | 82 | 86 |
| Difference | -5 | -3 | — | +3 | +6 | +12 | +12 | +10 | +5 | -4 | -9 | -8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Frankfurt am Main | 93 | 89 | 83 | 76 | 73 | 67 |
| Boston | 88 | 87 | 83 | 80 | 79 | 79 |
| Difference | -5 | -3 | — | +3 | +6 | +12 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Frankfurt am Main | 62 | 62 | 70 | 82 | 91 | 93 |
| Boston | 74 | 73 | 74 | 78 | 82 | 86 |
| Difference | +12 | +10 | +5 | -4 | -9 | -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. Frankfurt am Main trends → · Boston trends →
Frankfurt am Main is projected to shift from Cfb to Cfa by the 2071–2099 window (SSP2-4.5).
Methodology & sources
Frankfurt am Main
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Rhein Main, a weather station, about 12 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 Frankfurt am Main · change Boston → · Frankfurt am Main page · Boston page