| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -4.1° | -12.2° | 23.3mm | 8.6 | 13 |
| February | -2.1° | -11.8° | 31.5mm | 7.8 | 14 |
| March | 5.7° | -3.9° | 48.2mm | 8.4 | 29 |
| April | 12.4° | 1.9° | 78mm | 11.7 | 52 |
| May | 21.1° | 9.5° | 102.2mm | 13.1 | 74 |
| June | 26.5° | 15.3° | 116.2mm | 12.5 | 75 |
| July | 28.5° | 17.4° | 82.7mm | 9.8 | 74 |
| August | 26.8° | 16.1° | 100.2mm | 10.1 | 80 |
| September | 23.3° | 12.3° | 89.2mm | 10.1 | 80 |
| October | 14.9° | 4.9° | 67.4mm | 10.5 | 63 |
| November | 6.2° | -2.4° | 39.1mm | 8.3 | 33 |
| December | -0.9° | -8.1° | 40.4mm | 10.1 | 10 |
January in Eau Claire averages a daily high of -4.1°C with nights around -12.2°C. Expect roughly 8.6 wet days totalling 23.3mm. A hard month to visit for comfort alone.
February in Eau Claire averages a daily high of -2.1°C with nights around -11.8°C. Expect roughly 7.8 wet days totalling 31.5mm. A hard month to visit for comfort alone.
March in Eau Claire averages a daily high of 5.7°C with nights around -3.9°C. Expect roughly 8.4 wet days totalling 48.2mm. A hard month to visit for comfort alone.
April in Eau Claire averages a daily high of 12.4°C with nights around 1.9°C. Expect roughly 11.7 wet days totalling 78mm. Demanding conditions — pack for it and plan indoor options.
May in Eau Claire averages a daily high of 21.1°C with nights around 9.5°C. Expect roughly 13.1 wet days totalling 102.2mm. Generally workable, with some weather to plan around.
June in Eau Claire averages a daily high of 26.5°C with nights around 15.3°C. Expect roughly 12.5 wet days totalling 116.2mm. Comfortable conditions for being outdoors all day.
July in Eau Claire averages a daily high of 28.5°C with nights around 17.4°C. Expect roughly 9.8 wet days totalling 82.7mm. Generally workable, with some weather to plan around.
August in Eau Claire averages a daily high of 26.8°C with nights around 16.1°C. Expect roughly 10.1 wet days totalling 100.2mm. Comfortable conditions for being outdoors all day.
September in Eau Claire averages a daily high of 23.3°C with nights around 12.3°C. Expect roughly 10.1 wet days totalling 89.2mm. Comfortable conditions for being outdoors all day.
October in Eau Claire averages a daily high of 14.9°C with nights around 4.9°C. Expect roughly 10.5 wet days totalling 67.4mm. Generally workable, with some weather to plan around.
November in Eau Claire averages a daily high of 6.2°C with nights around -2.4°C. Expect roughly 8.3 wet days totalling 39.1mm. A hard month to visit for comfort alone.
December in Eau Claire averages a daily high of -0.9°C with nights around -8.1°C. Expect roughly 10.1 wet days totalling 40.4mm. 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. Eau Claire peaks at 80.
Based on 30 years of records, May–September scores highest for comfort in Eau Claire, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 28.5°C.
June is the wettest, averaging 116.2mm of rain across roughly 12.5 wet days.
January is the coolest month, with average daily highs around -4.1°C.