| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 3.4° | -7.8° | 77.2mm | 10.3 | 12 |
| February | 6.8° | -4.9° | 65.5mm | 9.1 | 29 |
| March | 12.1° | -0.1° | 88.2mm | 9.4 | 53 |
| April | 19.7° | 6.6° | 124.2mm | 11.5 | 76 |
| May | 24.8° | 12.2° | 125.6mm | 11.8 | 76 |
| June | 29.8° | 17° | 136.5mm | 10.7 | 67 |
| July | 32.2° | 19.1° | 91.4mm | 8.6 | 62 |
| August | 31.3° | 17.8° | 71.1mm | 7.6 | 68 |
| September | 27.8° | 12.7° | 76.6mm | 7.1 | 83 |
| October | 20.4° | 5.9° | 88.3mm | 9.2 | 82 |
| November | 13.2° | 0.4° | 80.2mm | 8.8 | 58 |
| December | 5.8° | -5° | 78.4mm | 9.4 | 25 |
January in Terre Haute averages a daily high of 3.4°C with nights around -7.8°C. Expect roughly 10.3 wet days totalling 77.2mm. A hard month to visit for comfort alone.
February in Terre Haute averages a daily high of 6.8°C with nights around -4.9°C. Expect roughly 9.1 wet days totalling 65.5mm. A hard month to visit for comfort alone.
March in Terre Haute averages a daily high of 12.1°C with nights around -0.1°C. Expect roughly 9.4 wet days totalling 88.2mm. Demanding conditions — pack for it and plan indoor options.
April in Terre Haute averages a daily high of 19.7°C with nights around 6.6°C. Expect roughly 11.5 wet days totalling 124.2mm. Comfortable conditions for being outdoors all day.
May in Terre Haute averages a daily high of 24.8°C with nights around 12.2°C. Expect roughly 11.8 wet days totalling 125.6mm. Comfortable conditions for being outdoors all day.
June in Terre Haute averages a daily high of 29.8°C with nights around 17°C. Expect roughly 10.7 wet days totalling 136.5mm. Generally workable, with some weather to plan around.
July in Terre Haute averages a daily high of 32.2°C with nights around 19.1°C. Expect roughly 8.6 wet days totalling 91.4mm. Generally workable, with some weather to plan around.
August in Terre Haute averages a daily high of 31.3°C with nights around 17.8°C. Expect roughly 7.6 wet days totalling 71.1mm. Generally workable, with some weather to plan around.
September in Terre Haute averages a daily high of 27.8°C with nights around 12.7°C. Expect roughly 7.1 wet days totalling 76.6mm. Comfortable conditions for being outdoors all day.
October in Terre Haute averages a daily high of 20.4°C with nights around 5.9°C. Expect roughly 9.2 wet days totalling 88.3mm. Comfortable conditions for being outdoors all day.
November in Terre Haute averages a daily high of 13.2°C with nights around 0.4°C. Expect roughly 8.8 wet days totalling 80.2mm. Generally workable, with some weather to plan around.
December in Terre Haute averages a daily high of 5.8°C with nights around -5°C. Expect roughly 9.4 wet days totalling 78.4mm. 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. Terre Haute peaks at 83.
Based on 30 years of records, April–May scores highest for comfort in Terre Haute, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 32.2°C.
June is the wettest, averaging 136.5mm of rain across roughly 10.7 wet days.
January is the coolest month, with average daily highs around 3.4°C.