| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 0.1° | -7.8° | 76.5mm | 15.5 | 0 |
| February | 1.4° | -7.3° | 58.8mm | 11.3 | 8 |
| March | 5.6° | -3.6° | 61.8mm | 10.6 | 24 |
| April | 11.9° | 1.3° | 84.1mm | 12.4 | 48 |
| May | 18.9° | 7.7° | 96.4mm | 12.4 | 72 |
| June | 23.9° | 13.5° | 86.7mm | 11.2 | 78 |
| July | 26.4° | 16.2° | 90.1mm | 10.1 | 80 |
| August | 26.3° | 16° | 78.9mm | 9.6 | 81 |
| September | 22.7° | 12.4° | 106.8mm | 10.3 | 79 |
| October | 15.9° | 6.7° | 97.3mm | 12.3 | 62 |
| November | 9.2° | 1.4° | 90.5mm | 12.5 | 40 |
| December | 3° | -3.8° | 80.6mm | 13.8 | 9 |
January in Buffalo averages a daily high of 0.1°C with nights around -7.8°C. Expect roughly 15.5 wet days totalling 76.5mm. A hard month to visit for comfort alone.
February in Buffalo averages a daily high of 1.4°C with nights around -7.3°C. Expect roughly 11.3 wet days totalling 58.8mm. A hard month to visit for comfort alone.
March in Buffalo averages a daily high of 5.6°C with nights around -3.6°C. Expect roughly 10.6 wet days totalling 61.8mm. A hard month to visit for comfort alone.
April in Buffalo averages a daily high of 11.9°C with nights around 1.3°C. Expect roughly 12.4 wet days totalling 84.1mm. Demanding conditions — pack for it and plan indoor options.
May in Buffalo averages a daily high of 18.9°C with nights around 7.7°C. Expect roughly 12.4 wet days totalling 96.4mm. Generally workable, with some weather to plan around.
June in Buffalo averages a daily high of 23.9°C with nights around 13.5°C. Expect roughly 11.2 wet days totalling 86.7mm. Comfortable conditions for being outdoors all day.
July in Buffalo averages a daily high of 26.4°C with nights around 16.2°C. Expect roughly 10.1 wet days totalling 90.1mm. Comfortable conditions for being outdoors all day.
August in Buffalo averages a daily high of 26.3°C with nights around 16°C. Expect roughly 9.6 wet days totalling 78.9mm. Comfortable conditions for being outdoors all day.
September in Buffalo averages a daily high of 22.7°C with nights around 12.4°C. Expect roughly 10.3 wet days totalling 106.8mm. Comfortable conditions for being outdoors all day.
October in Buffalo averages a daily high of 15.9°C with nights around 6.7°C. Expect roughly 12.3 wet days totalling 97.3mm. Generally workable, with some weather to plan around.
November in Buffalo averages a daily high of 9.2°C with nights around 1.4°C. Expect roughly 12.5 wet days totalling 90.5mm. Demanding conditions — pack for it and plan indoor options.
December in Buffalo averages a daily high of 3°C with nights around -3.8°C. Expect roughly 13.8 wet days totalling 80.6mm. 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. Buffalo peaks at 81.
Based on 30 years of records, June–September scores highest for comfort in Buffalo, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 26.4°C.
September is the wettest, averaging 106.8mm of rain across roughly 10.3 wet days.
January is the coolest month, with average daily highs around 0.1°C.