| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -3.4° | -11.4° | 34.5mm | 9.2 | 12 |
| February | -1.4° | -10.8° | 30mm | 8.5 | 13 |
| March | 5.1° | -5.2° | 54.4mm | 9.2 | 23 |
| April | 12.4° | 1° | 80.5mm | 11.8 | 51 |
| May | 19.5° | 7.6° | 95.9mm | 12.2 | 74 |
| June | 25.2° | 13.6° | 123mm | 11.7 | 77 |
| July | 27.6° | 16.1° | 93mm | 10.7 | 76 |
| August | 26.4° | 15.2° | 99.8mm | 10.7 | 79 |
| September | 22.5° | 10.8° | 76.4mm | 9.3 | 81 |
| October | 14.7° | 4.2° | 73.2mm | 10.8 | 61 |
| November | 6.7° | -2.2° | 51.5mm | 8.9 | 33 |
| December | -0.5° | -8.1° | 45.9mm | 10.3 | 9 |
January in Appleton averages a daily high of -3.4°C with nights around -11.4°C. Expect roughly 9.2 wet days totalling 34.5mm. A hard month to visit for comfort alone.
February in Appleton averages a daily high of -1.4°C with nights around -10.8°C. Expect roughly 8.5 wet days totalling 30mm. A hard month to visit for comfort alone.
March in Appleton averages a daily high of 5.1°C with nights around -5.2°C. Expect roughly 9.2 wet days totalling 54.4mm. A hard month to visit for comfort alone.
April in Appleton averages a daily high of 12.4°C with nights around 1°C. Expect roughly 11.8 wet days totalling 80.5mm. Demanding conditions — pack for it and plan indoor options.
May in Appleton averages a daily high of 19.5°C with nights around 7.6°C. Expect roughly 12.2 wet days totalling 95.9mm. Generally workable, with some weather to plan around.
June in Appleton averages a daily high of 25.2°C with nights around 13.6°C. Expect roughly 11.7 wet days totalling 123mm. Comfortable conditions for being outdoors all day.
July in Appleton averages a daily high of 27.6°C with nights around 16.1°C. Expect roughly 10.7 wet days totalling 93mm. Comfortable conditions for being outdoors all day.
August in Appleton averages a daily high of 26.4°C with nights around 15.2°C. Expect roughly 10.7 wet days totalling 99.8mm. Comfortable conditions for being outdoors all day.
September in Appleton averages a daily high of 22.5°C with nights around 10.8°C. Expect roughly 9.3 wet days totalling 76.4mm. Comfortable conditions for being outdoors all day.
October in Appleton averages a daily high of 14.7°C with nights around 4.2°C. Expect roughly 10.8 wet days totalling 73.2mm. Generally workable, with some weather to plan around.
November in Appleton averages a daily high of 6.7°C with nights around -2.2°C. Expect roughly 8.9 wet days totalling 51.5mm. A hard month to visit for comfort alone.
December in Appleton averages a daily high of -0.5°C with nights around -8.1°C. Expect roughly 10.3 wet days totalling 45.9mm. 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. Appleton peaks at 81.
Based on 30 years of records, May–September scores highest for comfort in Appleton, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 27.6°C.
June is the wettest, averaging 123mm of rain across roughly 11.7 wet days.
January is the coolest month, with average daily highs around -3.4°C.