| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 1.4° | -5.6° | 92.1mm | 19.6 | 4 |
| February | 2.4° | -5.5° | 66.7mm | 15 | 4 |
| March | 6.9° | -1.8° | 76.6mm | 14 | 24 |
| April | 13.4° | 3.5° | 85.6mm | 13.8 | 51 |
| May | 19.8° | 9.8° | 93mm | 13.4 | 73 |
| June | 24.7° | 15.4° | 96.6mm | 11.6 | 77 |
| July | 26.8° | 18° | 87.5mm | 10.4 | 79 |
| August | 26.3° | 17.5° | 80.7mm | 10.2 | 80 |
| September | 22.9° | 14.1° | 107.7mm | 9.9 | 80 |
| October | 16.6° | 8.3° | 114.6mm | 14.4 | 60 |
| November | 9.9° | 2.7° | 97.6mm | 14.8 | 38 |
| December | 4.3° | -1.9° | 103.4mm | 18.6 | 14 |
January in Erie averages a daily high of 1.4°C with nights around -5.6°C. Expect roughly 19.6 wet days totalling 92.1mm. A hard month to visit for comfort alone.
February in Erie averages a daily high of 2.4°C with nights around -5.5°C. Expect roughly 15 wet days totalling 66.7mm. A hard month to visit for comfort alone.
March in Erie averages a daily high of 6.9°C with nights around -1.8°C. Expect roughly 14 wet days totalling 76.6mm. A hard month to visit for comfort alone.
April in Erie averages a daily high of 13.4°C with nights around 3.5°C. Expect roughly 13.8 wet days totalling 85.6mm. Demanding conditions — pack for it and plan indoor options.
May in Erie averages a daily high of 19.8°C with nights around 9.8°C. Expect roughly 13.4 wet days totalling 93mm. Generally workable, with some weather to plan around.
June in Erie averages a daily high of 24.7°C with nights around 15.4°C. Expect roughly 11.6 wet days totalling 96.6mm. Comfortable conditions for being outdoors all day.
July in Erie averages a daily high of 26.8°C with nights around 18°C. Expect roughly 10.4 wet days totalling 87.5mm. Comfortable conditions for being outdoors all day.
August in Erie averages a daily high of 26.3°C with nights around 17.5°C. Expect roughly 10.2 wet days totalling 80.7mm. Comfortable conditions for being outdoors all day.
September in Erie averages a daily high of 22.9°C with nights around 14.1°C. Expect roughly 9.9 wet days totalling 107.7mm. Comfortable conditions for being outdoors all day.
October in Erie averages a daily high of 16.6°C with nights around 8.3°C. Expect roughly 14.4 wet days totalling 114.6mm. Generally workable, with some weather to plan around.
November in Erie averages a daily high of 9.9°C with nights around 2.7°C. Expect roughly 14.8 wet days totalling 97.6mm. Demanding conditions — pack for it and plan indoor options.
December in Erie averages a daily high of 4.3°C with nights around -1.9°C. Expect roughly 18.6 wet days totalling 103.4mm. 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. Erie peaks at 80.
Based on 30 years of records, May–September scores highest for comfort in Erie, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 26.8°C.
October is the wettest, averaging 114.6mm of rain across roughly 14.4 wet days.
January is the coolest month, with average daily highs around 1.4°C.