| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 0.3° | -8.1° | 67.5mm | 18.5 | 0 |
| February | 1.6° | -7.6° | 60.7mm | 16.4 | 1 |
| March | 6.5° | -3.4° | 72mm | 15.1 | 19 |
| April | 14° | 2.4° | 85.8mm | 14.4 | 52 |
| May | 21.1° | 8.7° | 82.5mm | 13 | 74 |
| June | 25.6° | 14° | 100mm | 12.2 | 76 |
| July | 28.2° | 16.9° | 97.5mm | 11.8 | 72 |
| August | 27.3° | 16.1° | 100.2mm | 11 | 77 |
| September | 23.5° | 11.9° | 82.4mm | 10.6 | 79 |
| October | 16.4° | 6.2° | 102.1mm | 15.4 | 58 |
| November | 9.4° | 0.6° | 83.5mm | 15.8 | 34 |
| December | 3.4° | -4.1° | 84.5mm | 18.7 | 8 |
January in Syracuse averages a daily high of 0.3°C with nights around -8.1°C. Expect roughly 18.5 wet days totalling 67.5mm. A hard month to visit for comfort alone.
February in Syracuse averages a daily high of 1.6°C with nights around -7.6°C. Expect roughly 16.4 wet days totalling 60.7mm. A hard month to visit for comfort alone.
March in Syracuse averages a daily high of 6.5°C with nights around -3.4°C. Expect roughly 15.1 wet days totalling 72mm. A hard month to visit for comfort alone.
April in Syracuse averages a daily high of 14°C with nights around 2.4°C. Expect roughly 14.4 wet days totalling 85.8mm. Demanding conditions — pack for it and plan indoor options.
May in Syracuse averages a daily high of 21.1°C with nights around 8.7°C. Expect roughly 13 wet days totalling 82.5mm. Generally workable, with some weather to plan around.
June in Syracuse averages a daily high of 25.6°C with nights around 14°C. Expect roughly 12.2 wet days totalling 100mm. Comfortable conditions for being outdoors all day.
July in Syracuse averages a daily high of 28.2°C with nights around 16.9°C. Expect roughly 11.8 wet days totalling 97.5mm. Generally workable, with some weather to plan around.
August in Syracuse averages a daily high of 27.3°C with nights around 16.1°C. Expect roughly 11 wet days totalling 100.2mm. Comfortable conditions for being outdoors all day.
September in Syracuse averages a daily high of 23.5°C with nights around 11.9°C. Expect roughly 10.6 wet days totalling 82.4mm. Comfortable conditions for being outdoors all day.
October in Syracuse averages a daily high of 16.4°C with nights around 6.2°C. Expect roughly 15.4 wet days totalling 102.1mm. Generally workable, with some weather to plan around.
November in Syracuse averages a daily high of 9.4°C with nights around 0.6°C. Expect roughly 15.8 wet days totalling 83.5mm. A hard month to visit for comfort alone.
December in Syracuse averages a daily high of 3.4°C with nights around -4.1°C. Expect roughly 18.7 wet days totalling 84.5mm. 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. Syracuse peaks at 79.
Based on 30 years of records, May–September scores highest for comfort in Syracuse, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 28.2°C.
October is the wettest, averaging 102.1mm of rain across roughly 15.4 wet days.
January is the coolest month, with average daily highs around 0.3°C.