| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -2.1° | -11.7° | 40.6mm | 8.2 | 14 |
| February | -0.2° | -10.6° | 44.6mm | 7.4 | 15 |
| March | 6.9° | -4.5° | 60.2mm | 8.7 | 31 |
| April | 14.3° | 1.5° | 102.5mm | 11.2 | 59 |
| May | 20.8° | 8.1° | 117.5mm | 13 | 74 |
| June | 26° | 13.5° | 148.8mm | 12 | 76 |
| July | 28.1° | 15.9° | 115.6mm | 9.9 | 76 |
| August | 27.2° | 14.9° | 104.3mm | 10 | 79 |
| September | 23.7° | 10.2° | 92.6mm | 8.6 | 83 |
| October | 16.6° | 3.9° | 78.3mm | 10.1 | 69 |
| November | 8.4° | -2.2° | 56.6mm | 8 | 41 |
| December | 0.9° | -8.2° | 49mm | 8.4 | 13 |
January in Madison averages a daily high of -2.1°C with nights around -11.7°C. Expect roughly 8.2 wet days totalling 40.6mm. A hard month to visit for comfort alone.
February in Madison averages a daily high of -0.2°C with nights around -10.6°C. Expect roughly 7.4 wet days totalling 44.6mm. A hard month to visit for comfort alone.
March in Madison averages a daily high of 6.9°C with nights around -4.5°C. Expect roughly 8.7 wet days totalling 60.2mm. A hard month to visit for comfort alone.
April in Madison averages a daily high of 14.3°C with nights around 1.5°C. Expect roughly 11.2 wet days totalling 102.5mm. Generally workable, with some weather to plan around.
May in Madison averages a daily high of 20.8°C with nights around 8.1°C. Expect roughly 13 wet days totalling 117.5mm. Generally workable, with some weather to plan around.
June in Madison averages a daily high of 26°C with nights around 13.5°C. Expect roughly 12 wet days totalling 148.8mm. Comfortable conditions for being outdoors all day.
July in Madison averages a daily high of 28.1°C with nights around 15.9°C. Expect roughly 9.9 wet days totalling 115.6mm. Comfortable conditions for being outdoors all day.
August in Madison averages a daily high of 27.2°C with nights around 14.9°C. Expect roughly 10 wet days totalling 104.3mm. Comfortable conditions for being outdoors all day.
September in Madison averages a daily high of 23.7°C with nights around 10.2°C. Expect roughly 8.6 wet days totalling 92.6mm. Comfortable conditions for being outdoors all day.
October in Madison averages a daily high of 16.6°C with nights around 3.9°C. Expect roughly 10.1 wet days totalling 78.3mm. Generally workable, with some weather to plan around.
November in Madison averages a daily high of 8.4°C with nights around -2.2°C. Expect roughly 8 wet days totalling 56.6mm. Demanding conditions — pack for it and plan indoor options.
December in Madison averages a daily high of 0.9°C with nights around -8.2°C. Expect roughly 8.4 wet days totalling 49mm. 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. Madison peaks at 83.
Based on 30 years of records, June–September scores highest for comfort in Madison, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 28.1°C.
June is the wettest, averaging 148.8mm of rain across roughly 12 wet days.
January is the coolest month, with average daily highs around -2.1°C.