| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 6.6° | 1.2° | 71mm | 17.3 | 26 |
| February | 7.7° | 1.6° | 59.7mm | 14.8 | 30 |
| March | 9.7° | 2.6° | 55.8mm | 14.6 | 38 |
| April | 12.6° | 4.4° | 52.6mm | 13.5 | 49 |
| May | 15.8° | 7.3° | 66.6mm | 13.9 | 59 |
| June | 18.4° | 10° | 69.1mm | 13.6 | 68 |
| July | 20.4° | 11.8° | 69.8mm | 14.7 | 71 |
| August | 20° | 12° | 77.3mm | 15 | 70 |
| September | 17.5° | 10.1° | 76.5mm | 13.6 | 65 |
| October | 13.7° | 7.5° | 89.2mm | 16.9 | 50 |
| November | 9.5° | 3.8° | 77.8mm | 18.1 | 36 |
| December | 7° | 1.6° | 81.8mm | 18.3 | 28 |
January in Newcastle under Lyme averages a daily high of 6.6°C with nights around 1.2°C. Expect roughly 17.3 wet days totalling 71mm. A hard month to visit for comfort alone.
February in Newcastle under Lyme averages a daily high of 7.7°C with nights around 1.6°C. Expect roughly 14.8 wet days totalling 59.7mm. A hard month to visit for comfort alone.
March in Newcastle under Lyme averages a daily high of 9.7°C with nights around 2.6°C. Expect roughly 14.6 wet days totalling 55.8mm. Demanding conditions — pack for it and plan indoor options.
April in Newcastle under Lyme averages a daily high of 12.6°C with nights around 4.4°C. Expect roughly 13.5 wet days totalling 52.6mm. Demanding conditions — pack for it and plan indoor options.
May in Newcastle under Lyme averages a daily high of 15.8°C with nights around 7.3°C. Expect roughly 13.9 wet days totalling 66.6mm. Generally workable, with some weather to plan around.
June in Newcastle under Lyme averages a daily high of 18.4°C with nights around 10°C. Expect roughly 13.6 wet days totalling 69.1mm. Generally workable, with some weather to plan around.
July in Newcastle under Lyme averages a daily high of 20.4°C with nights around 11.8°C. Expect roughly 14.7 wet days totalling 69.8mm. Generally workable, with some weather to plan around.
August in Newcastle under Lyme averages a daily high of 20°C with nights around 12°C. Expect roughly 15 wet days totalling 77.3mm. Generally workable, with some weather to plan around.
September in Newcastle under Lyme averages a daily high of 17.5°C with nights around 10.1°C. Expect roughly 13.6 wet days totalling 76.5mm. Generally workable, with some weather to plan around.
October in Newcastle under Lyme averages a daily high of 13.7°C with nights around 7.5°C. Expect roughly 16.9 wet days totalling 89.2mm. Demanding conditions — pack for it and plan indoor options.
November in Newcastle under Lyme averages a daily high of 9.5°C with nights around 3.8°C. Expect roughly 18.1 wet days totalling 77.8mm. Demanding conditions — pack for it and plan indoor options.
December in Newcastle under Lyme averages a daily high of 7°C with nights around 1.6°C. Expect roughly 18.3 wet days totalling 81.8mm. 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. Newcastle under Lyme peaks at 71.
Based on 30 years of records, June–September scores highest for comfort in Newcastle under Lyme, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 20.4°C.
October is the wettest, averaging 89.2mm of rain across roughly 16.9 wet days.
January is the coolest month, with average daily highs around 6.6°C.