| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -4.3° | -11.9° | 26.5mm | 9.4 | 11 |
| February | -2.3° | -11.1° | 30.1mm | 8.5 | 13 |
| March | 5.2° | -3.9° | 53.1mm | 10 | 24 |
| April | 12.8° | 2.5° | 94.8mm | 12.3 | 52 |
| May | 19.4° | 9° | 128mm | 14.7 | 69 |
| June | 24.4° | 14.5° | 148.2mm | 12.5 | 75 |
| July | 26.5° | 16.8° | 110.6mm | 9.9 | 80 |
| August | 25.5° | 15.8° | 113.5mm | 10.3 | 79 |
| September | 21.8° | 11.8° | 97.3mm | 9.8 | 80 |
| October | 14.2° | 4.8° | 72.4mm | 10 | 61 |
| November | 6.1° | -1.8° | 46.7mm | 8.9 | 32 |
| December | -1.9° | -9° | 43.1mm | 10.6 | 9 |
January in La Crosse averages a daily high of -4.3°C with nights around -11.9°C. Expect roughly 9.4 wet days totalling 26.5mm. A hard month to visit for comfort alone.
February in La Crosse averages a daily high of -2.3°C with nights around -11.1°C. Expect roughly 8.5 wet days totalling 30.1mm. A hard month to visit for comfort alone.
March in La Crosse averages a daily high of 5.2°C with nights around -3.9°C. Expect roughly 10 wet days totalling 53.1mm. A hard month to visit for comfort alone.
April in La Crosse averages a daily high of 12.8°C with nights around 2.5°C. Expect roughly 12.3 wet days totalling 94.8mm. Demanding conditions — pack for it and plan indoor options.
May in La Crosse averages a daily high of 19.4°C with nights around 9°C. Expect roughly 14.7 wet days totalling 128mm. Generally workable, with some weather to plan around.
June in La Crosse averages a daily high of 24.4°C with nights around 14.5°C. Expect roughly 12.5 wet days totalling 148.2mm. Comfortable conditions for being outdoors all day.
July in La Crosse averages a daily high of 26.5°C with nights around 16.8°C. Expect roughly 9.9 wet days totalling 110.6mm. Comfortable conditions for being outdoors all day.
August in La Crosse averages a daily high of 25.5°C with nights around 15.8°C. Expect roughly 10.3 wet days totalling 113.5mm. Comfortable conditions for being outdoors all day.
September in La Crosse averages a daily high of 21.8°C with nights around 11.8°C. Expect roughly 9.8 wet days totalling 97.3mm. Comfortable conditions for being outdoors all day.
October in La Crosse averages a daily high of 14.2°C with nights around 4.8°C. Expect roughly 10 wet days totalling 72.4mm. Generally workable, with some weather to plan around.
November in La Crosse averages a daily high of 6.1°C with nights around -1.8°C. Expect roughly 8.9 wet days totalling 46.7mm. A hard month to visit for comfort alone.
December in La Crosse averages a daily high of -1.9°C with nights around -9°C. Expect roughly 10.6 wet days totalling 43.1mm. 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. La Crosse peaks at 80.
Based on 30 years of records, June–September scores highest for comfort in La Crosse, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 26.5°C.
June is the wettest, averaging 148.2mm of rain across roughly 12.5 wet days.
January is the coolest month, with average daily highs around -4.3°C.