| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 11.1° | -0.1° | 89.5mm | 10.2 | 48 |
| February | 13.3° | 1.3° | 73.8mm | 9.5 | 59 |
| March | 17.6° | 4.8° | 99.8mm | 10.6 | 71 |
| April | 22.6° | 9.3° | 92.3mm | 9.2 | 82 |
| May | 26.7° | 14.3° | 86.9mm | 10.3 | 79 |
| June | 30.9° | 18.9° | 103.3mm | 10.8 | 63 |
| July | 32.6° | 21.1° | 134mm | 11.5 | 55 |
| August | 31.7° | 20.5° | 119.2mm | 10.7 | 60 |
| September | 28.1° | 17° | 143.6mm | 9.1 | 77 |
| October | 23° | 10.3° | 84.1mm | 7.5 | 85 |
| November | 17.3° | 4.3° | 84.2mm | 7.9 | 76 |
| December | 12.8° | 1.4° | 89.8mm | 9.5 | 57 |
January in Durham averages a daily high of 11.1°C with nights around -0.1°C. Expect roughly 10.2 wet days totalling 89.5mm. Demanding conditions — pack for it and plan indoor options.
February in Durham averages a daily high of 13.3°C with nights around 1.3°C. Expect roughly 9.5 wet days totalling 73.8mm. Generally workable, with some weather to plan around.
March in Durham averages a daily high of 17.6°C with nights around 4.8°C. Expect roughly 10.6 wet days totalling 99.8mm. Generally workable, with some weather to plan around.
April in Durham averages a daily high of 22.6°C with nights around 9.3°C. Expect roughly 9.2 wet days totalling 92.3mm. Comfortable conditions for being outdoors all day.
May in Durham averages a daily high of 26.7°C with nights around 14.3°C. Expect roughly 10.3 wet days totalling 86.9mm. Comfortable conditions for being outdoors all day.
June in Durham averages a daily high of 30.9°C with nights around 18.9°C. Expect roughly 10.8 wet days totalling 103.3mm. Generally workable, with some weather to plan around.
July in Durham averages a daily high of 32.6°C with nights around 21.1°C. Expect roughly 11.5 wet days totalling 134mm. Generally workable, with some weather to plan around.
August in Durham averages a daily high of 31.7°C with nights around 20.5°C. Expect roughly 10.7 wet days totalling 119.2mm. Generally workable, with some weather to plan around.
September in Durham averages a daily high of 28.1°C with nights around 17°C. Expect roughly 9.1 wet days totalling 143.6mm. Comfortable conditions for being outdoors all day.
October in Durham averages a daily high of 23°C with nights around 10.3°C. Expect roughly 7.5 wet days totalling 84.1mm. Comfortable conditions for being outdoors all day.
November in Durham averages a daily high of 17.3°C with nights around 4.3°C. Expect roughly 7.9 wet days totalling 84.2mm. Comfortable conditions for being outdoors all day.
December in Durham averages a daily high of 12.8°C with nights around 1.4°C. Expect roughly 9.5 wet days totalling 89.8mm. Generally workable, with some weather to plan around.
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. Durham peaks at 85.
Based on 30 years of records, April–May scores highest for comfort in Durham, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 32.6°C.
September is the wettest, averaging 143.6mm of rain across roughly 9.1 wet days.
January is the coolest month, with average daily highs around 11.1°C.