| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 1.8° | -5.6° | 76.7mm | 17.9 | 4 |
| February | 3.4° | -5° | 63mm | 14 | 8 |
| March | 8.4° | -1° | 77.2mm | 14.4 | 30 |
| April | 15.2° | 4.5° | 94.4mm | 14.3 | 56 |
| May | 21.3° | 10.4° | 98.6mm | 13.4 | 73 |
| June | 26.2° | 15.8° | 97.4mm | 11.9 | 76 |
| July | 28.2° | 18° | 98.3mm | 10.8 | 74 |
| August | 27.4° | 17.4° | 96.5mm | 10.5 | 77 |
| September | 24° | 13.7° | 96.3mm | 9.8 | 80 |
| October | 17.4° | 7.9° | 96.7mm | 12.4 | 67 |
| November | 10.4° | 2.1° | 79.9mm | 12.9 | 43 |
| December | 4.5° | -2.3° | 75.8mm | 15.6 | 14 |
January in Parma averages a daily high of 1.8°C with nights around -5.6°C. Expect roughly 17.9 wet days totalling 76.7mm. A hard month to visit for comfort alone.
February in Parma averages a daily high of 3.4°C with nights around -5°C. Expect roughly 14 wet days totalling 63mm. A hard month to visit for comfort alone.
March in Parma averages a daily high of 8.4°C with nights around -1°C. Expect roughly 14.4 wet days totalling 77.2mm. A hard month to visit for comfort alone.
April in Parma averages a daily high of 15.2°C with nights around 4.5°C. Expect roughly 14.3 wet days totalling 94.4mm. Generally workable, with some weather to plan around.
May in Parma averages a daily high of 21.3°C with nights around 10.4°C. Expect roughly 13.4 wet days totalling 98.6mm. Generally workable, with some weather to plan around.
June in Parma averages a daily high of 26.2°C with nights around 15.8°C. Expect roughly 11.9 wet days totalling 97.4mm. Comfortable conditions for being outdoors all day.
July in Parma averages a daily high of 28.2°C with nights around 18°C. Expect roughly 10.8 wet days totalling 98.3mm. Generally workable, with some weather to plan around.
August in Parma averages a daily high of 27.4°C with nights around 17.4°C. Expect roughly 10.5 wet days totalling 96.5mm. Comfortable conditions for being outdoors all day.
September in Parma averages a daily high of 24°C with nights around 13.7°C. Expect roughly 9.8 wet days totalling 96.3mm. Comfortable conditions for being outdoors all day.
October in Parma averages a daily high of 17.4°C with nights around 7.9°C. Expect roughly 12.4 wet days totalling 96.7mm. Generally workable, with some weather to plan around.
November in Parma averages a daily high of 10.4°C with nights around 2.1°C. Expect roughly 12.9 wet days totalling 79.9mm. Demanding conditions — pack for it and plan indoor options.
December in Parma averages a daily high of 4.5°C with nights around -2.3°C. Expect roughly 15.6 wet days totalling 75.8mm. 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. Parma peaks at 80.
Based on 30 years of records, May–September scores highest for comfort in Parma, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 28.2°C.
May is the wettest, averaging 98.6mm of rain across roughly 13.4 wet days.
January is the coolest month, with average daily highs around 1.8°C.