| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 6.3° | -2.3° | 88.5mm | 8.6 | 33 |
| February | 9.1° | -1.5° | 92.3mm | 8.7 | 42 |
| March | 15.4° | 4.3° | 124.5mm | 10.2 | 65 |
| April | 21.7° | 9.5° | 144mm | 10.4 | 79 |
| May | 26° | 14.8° | 123.8mm | 11.6 | 77 |
| June | 31° | 19.6° | 102.5mm | 8.9 | 66 |
| July | 32.2° | 21.9° | 115.8mm | 8.5 | 62 |
| August | 32.3° | 21.4° | 81.5mm | 6.5 | 66 |
| September | 29.4° | 17.2° | 84.4mm | 5.8 | 79 |
| October | 22.9° | 11.1° | 93.3mm | 7.2 | 86 |
| November | 15° | 4.6° | 81.7mm | 7.4 | 69 |
| December | 9.5° | 1.2° | 100.8mm | 8.4 | 48 |
January in Evansville averages a daily high of 6.3°C with nights around -2.3°C. Expect roughly 8.6 wet days totalling 88.5mm. A hard month to visit for comfort alone.
February in Evansville averages a daily high of 9.1°C with nights around -1.5°C. Expect roughly 8.7 wet days totalling 92.3mm. Demanding conditions — pack for it and plan indoor options.
March in Evansville averages a daily high of 15.4°C with nights around 4.3°C. Expect roughly 10.2 wet days totalling 124.5mm. Generally workable, with some weather to plan around.
April in Evansville averages a daily high of 21.7°C with nights around 9.5°C. Expect roughly 10.4 wet days totalling 144mm. Comfortable conditions for being outdoors all day.
May in Evansville averages a daily high of 26°C with nights around 14.8°C. Expect roughly 11.6 wet days totalling 123.8mm. Comfortable conditions for being outdoors all day.
June in Evansville averages a daily high of 31°C with nights around 19.6°C. Expect roughly 8.9 wet days totalling 102.5mm. Generally workable, with some weather to plan around.
July in Evansville averages a daily high of 32.2°C with nights around 21.9°C. Expect roughly 8.5 wet days totalling 115.8mm. Generally workable, with some weather to plan around.
August in Evansville averages a daily high of 32.3°C with nights around 21.4°C. Expect roughly 6.5 wet days totalling 81.5mm. Generally workable, with some weather to plan around.
September in Evansville averages a daily high of 29.4°C with nights around 17.2°C. Expect roughly 5.8 wet days totalling 84.4mm. Comfortable conditions for being outdoors all day.
October in Evansville averages a daily high of 22.9°C with nights around 11.1°C. Expect roughly 7.2 wet days totalling 93.3mm. Comfortable conditions for being outdoors all day.
November in Evansville averages a daily high of 15°C with nights around 4.6°C. Expect roughly 7.4 wet days totalling 81.7mm. Generally workable, with some weather to plan around.
December in Evansville averages a daily high of 9.5°C with nights around 1.2°C. Expect roughly 8.4 wet days totalling 100.8mm. Demanding conditions — pack for it and plan indoor options.
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. Evansville peaks at 86.
Based on 30 years of records, September–October scores highest for comfort in Evansville, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 32.3°C.
April is the wettest, averaging 144mm of rain across roughly 10.4 wet days.
January is the coolest month, with average daily highs around 6.3°C.