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Photo by King of Hearts, CC BY-SA 4.0, via Wikimedia Commons.
Boston from Chicago
1,369 km, about 2h 35m in the air. Every month scored for the weather at Boston and for the holidays that crowd it out at both ends.
- JanJBoston in January: avoid
- FebFBoston in February: avoid
- MarMBoston in March: ok
- AprABoston in April: good
- MayMBoston in May: sweet spot
- JunJBoston in June: sweet spot, busy
- JulJBoston in July: sweet spot, busy
- AugABoston in August: sweet spot, busy
- SepSBoston in September: sweet spot
- OctOBoston in October: good
- NovNBoston in November: ok
- DecDBoston in December: avoid
- Sweet spot
- Good
- OK
- Avoid
- Busy
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Month by month from Chicago
| Month | Max °C | Rain days | Crowds | Typical fare | Verdict | Why |
|---|---|---|---|---|---|---|
| Jan | 3° | 9d | 80 | — | avoid | bitter cold: 3C daily max |
| Feb | 5° | 8d | 100 | — | avoid | bitter cold: 5C daily max |
| Mar | 8° | 10d | 100 | — | ok | 8C max, 10 rainy days |
| Apr | 13° | 10d | 100 | — | good | 13C max, 10 rainy days |
| May | 19° | 10d | 85 | — | sweet spot | 19C max, 10 rainy days |
| Jun | 25° | 9d | 65 | — | sweet spot busy | busier than usual |
| Jul | 28° | 10d | 65 | — | sweet spot busy | busier than usual |
| Aug | 27° | 8d | 65 | — | sweet spot busy | busier than usual |
| Sep | 23° | 8d | 100 | — | sweet spot | 23C max, 8 rainy days |
| Oct | 17° | 8d | 80 | — | good | 17C max, 8 rainy days |
| Nov | 11° | 8d | 80 | — | ok | 11C max, 8 rainy days |
| Dec | 5° | 8d | 80 | $236 | avoid | bitter cold: 5C daily max |
Rain days are the days with at least 2 mm of rain.
Crowds is a score out of 100 where higher is quieter. It counts public-holiday clusters in US as well as at Boston, which is why this table differs from the same one read from another country. A busy month is a crowded one, not a bad one — usually it is crowded because the weather is good. Crowds alone never make a month “avoid”: that is reserved for weather worth skipping.
How busy it gets
The year in Boston
Boston's climate features cold winters and warm summers. It is important to dress appropriately for the season you visit, and be prepared for possible rain in spring and fall.
| Busiest |
early Jun to late Aug — Summer months attract the most tourists due to pleasant weather and outdoor activities.
|
|---|---|
| Quieter, still good |
early Apr to late May — Spring offers enjoyable weather and fewer crowds before peak summer tourism.
early Sep to late Oct — Fall showcases beautiful foliage and milder temperatures, making it a nice time to visit.
|
Written by a language model from the climate figures above. The month-by-month table is measured — ten years of ERA5 readings and published holiday calendars — and where the two disagree, the table is the one to believe.
Boston from anywhere · everywhere from Chicago
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