| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -0.9° | -8.6° | 77mm | 16 | 0 |
| February | 0.4° | -8.6° | 66.5mm | 12.8 | 4 |
| March | 5.6° | -4.1° | 71.8mm | 12.9 | 19 |
| April | 13° | 1.3° | 82.3mm | 13.5 | 50 |
| May | 20.3° | 7.2° | 77.6mm | 12 | 76 |
| June | 25.2° | 12.8° | 81.7mm | 10.7 | 79 |
| July | 27.5° | 14.8° | 87.1mm | 10.5 | 77 |
| August | 26.2° | 14° | 78.4mm | 9.9 | 80 |
| September | 22.7° | 10.5° | 83.9mm | 9.7 | 81 |
| October | 15.2° | 5.1° | 83.7mm | 12.5 | 60 |
| November | 8.4° | -0.2° | 68.8mm | 12.6 | 34 |
| December | 2.2° | -4.7° | 79mm | 15.3 | 5 |
January in Norfolk County averages a daily high of -0.9°C with nights around -8.6°C. Expect roughly 16 wet days totalling 77mm. A hard month to visit for comfort alone.
February in Norfolk County averages a daily high of 0.4°C with nights around -8.6°C. Expect roughly 12.8 wet days totalling 66.5mm. A hard month to visit for comfort alone.
March in Norfolk County averages a daily high of 5.6°C with nights around -4.1°C. Expect roughly 12.9 wet days totalling 71.8mm. A hard month to visit for comfort alone.
April in Norfolk County averages a daily high of 13°C with nights around 1.3°C. Expect roughly 13.5 wet days totalling 82.3mm. Demanding conditions — pack for it and plan indoor options.
May in Norfolk County averages a daily high of 20.3°C with nights around 7.2°C. Expect roughly 12 wet days totalling 77.6mm. Comfortable conditions for being outdoors all day.
June in Norfolk County averages a daily high of 25.2°C with nights around 12.8°C. Expect roughly 10.7 wet days totalling 81.7mm. Comfortable conditions for being outdoors all day.
July in Norfolk County averages a daily high of 27.5°C with nights around 14.8°C. Expect roughly 10.5 wet days totalling 87.1mm. Comfortable conditions for being outdoors all day.
August in Norfolk County averages a daily high of 26.2°C with nights around 14°C. Expect roughly 9.9 wet days totalling 78.4mm. Comfortable conditions for being outdoors all day.
September in Norfolk County averages a daily high of 22.7°C with nights around 10.5°C. Expect roughly 9.7 wet days totalling 83.9mm. Comfortable conditions for being outdoors all day.
October in Norfolk County averages a daily high of 15.2°C with nights around 5.1°C. Expect roughly 12.5 wet days totalling 83.7mm. Generally workable, with some weather to plan around.
November in Norfolk County averages a daily high of 8.4°C with nights around -0.2°C. Expect roughly 12.6 wet days totalling 68.8mm. A hard month to visit for comfort alone.
December in Norfolk County averages a daily high of 2.2°C with nights around -4.7°C. Expect roughly 15.3 wet days totalling 79mm. 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. Norfolk County peaks at 81.
Based on 30 years of records, May–September scores highest for comfort in Norfolk County, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 27.5°C.
July is the wettest, averaging 87.1mm of rain across roughly 10.5 wet days.
January is the coolest month, with average daily highs around -0.9°C.