| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 4° | -5.9° | 107.1mm | 11.2 | 15 |
| February | 5.4° | -5.6° | 93.7mm | 10.3 | 21 |
| March | 9.3° | -1.9° | 130.9mm | 11.7 | 37 |
| April | 15.3° | 3.3° | 114mm | 12.2 | 61 |
| May | 21° | 8.3° | 93mm | 12.8 | 74 |
| June | 26° | 13.6° | 107.6mm | 11.8 | 76 |
| July | 29.3° | 17.2° | 87.7mm | 10.2 | 70 |
| August | 28.5° | 16.3° | 94mm | 9.8 | 74 |
| September | 24.4° | 12.2° | 107.8mm | 9.3 | 81 |
| October | 18.2° | 6.1° | 128.2mm | 11.1 | 72 |
| November | 12.1° | 0.9° | 104.9mm | 10.5 | 52 |
| December | 6.9° | -3.2° | 120.9mm | 12.2 | 26 |
January in Brockton averages a daily high of 4°C with nights around -5.9°C. Expect roughly 11.2 wet days totalling 107.1mm. A hard month to visit for comfort alone.
February in Brockton averages a daily high of 5.4°C with nights around -5.6°C. Expect roughly 10.3 wet days totalling 93.7mm. A hard month to visit for comfort alone.
March in Brockton averages a daily high of 9.3°C with nights around -1.9°C. Expect roughly 11.7 wet days totalling 130.9mm. Demanding conditions — pack for it and plan indoor options.
April in Brockton averages a daily high of 15.3°C with nights around 3.3°C. Expect roughly 12.2 wet days totalling 114mm. Generally workable, with some weather to plan around.
May in Brockton averages a daily high of 21°C with nights around 8.3°C. Expect roughly 12.8 wet days totalling 93mm. Generally workable, with some weather to plan around.
June in Brockton averages a daily high of 26°C with nights around 13.6°C. Expect roughly 11.8 wet days totalling 107.6mm. Comfortable conditions for being outdoors all day.
July in Brockton averages a daily high of 29.3°C with nights around 17.2°C. Expect roughly 10.2 wet days totalling 87.7mm. Generally workable, with some weather to plan around.
August in Brockton averages a daily high of 28.5°C with nights around 16.3°C. Expect roughly 9.8 wet days totalling 94mm. Generally workable, with some weather to plan around.
September in Brockton averages a daily high of 24.4°C with nights around 12.2°C. Expect roughly 9.3 wet days totalling 107.8mm. Comfortable conditions for being outdoors all day.
October in Brockton averages a daily high of 18.2°C with nights around 6.1°C. Expect roughly 11.1 wet days totalling 128.2mm. Generally workable, with some weather to plan around.
November in Brockton averages a daily high of 12.1°C with nights around 0.9°C. Expect roughly 10.5 wet days totalling 104.9mm. Demanding conditions — pack for it and plan indoor options.
December in Brockton averages a daily high of 6.9°C with nights around -3.2°C. Expect roughly 12.2 wet days totalling 120.9mm. A hard month to visit for comfort alone.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Brockton peaks at 81.
Based on 30 years of records, May–June scores highest for comfort in Brockton, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 29.3°C.
March is the wettest, averaging 130.9mm of rain across roughly 11.7 wet days.
January is the coolest month, with average daily highs around 4°C.